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MoO2 nanoparticles/carbon textiles cathode for high performance flexible Li-O2 battery 认领 引用 被引量：3
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作者 Jia Liu Dan Li +4 位作者 Ying Wang Siqi Zhang Ziye Kang Haiming Xie Liqun Sun 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2020年第8期66-71,I0003,共6页
Conventional Li-O2 battery is hardly considered as a next-generation flexible electronics thus far,since it is inflexible,bulk,and limited by the absence of the adjustable cell configuration.Here,we report a binder-fr... Conventional Li-O2 battery is hardly considered as a next-generation flexible electronics thus far,since it is inflexible,bulk,and limited by the absence of the adjustable cell configuration.Here,we report a binder-free and flexible electrode of x wt%MoO2 NPs/CTs(x=6,16,and 28).A cell with 16 wt% MoO2 NPs/CTs displays a good cyclability over 240 cycles with a low overpotential of 0.33 V on the 1st cycle at a constant current density of 0.2 mA cm-2,a considerable rate performance,a superior reversibility associated with the desired formation and degradation of Li2O2,and a high electrochemical stability even under stringent bending and twisting conditions.Our work represents a promising progress in the material development and architecture design of O2 electrode for flexible Li-O2 batteries. 展开更多
关键词 MoO2 nanoparticles Flexible electrode Li-O2 battery High electrochemical stability
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In situ decoration of nanosized metal oxide on highly conductive MXene nanosheets as efficient catalyst for Li-O2 battery 认领 引用 被引量：6
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作者 Xingyu Li Caiying Wen +1 位作者 Huifeng Li Genban Sun 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2020年第8期272-280,I0010,共9页
Combining nanomaterials with complementary properties in a well-designed structure is an effective tactic to exploit multifunctional, high-performance materials for the energy conversion and storage. Nonprecious metal... Combining nanomaterials with complementary properties in a well-designed structure is an effective tactic to exploit multifunctional, high-performance materials for the energy conversion and storage. Nonprecious metal catalysts, such as cobalt oxide, with superior activity and excellent stability to other catalysts are widely desired. Nevertheless, the performance of CoO nanoparticles as an electrode material were significantly limit for its inferior conductivity, dissolution, and high cohesion. Herein, we grow ultrafine cobalt monoxide to decorate the interlayer and surface of the Ti3C2 Txnanosheets via a hydrothermal method companied by calcination. The layered MXenes act as the underlying conductive substrate,which not only increase the electron transfer rate at the interface but also greatly improve the electrochemical properties of the nanosized Co O particles by restricting the aggregation of CoO. The resulting CoO/Ti3C2 Txnanomaterial is applied as oxygen electrode for lithium-oxygen battery and achieves more than 160 cycles and first cycle capacity of 16,220 mAh g-1 at 100 mA g-1. This work paves a promising avenue for constructing a bi-functional catalyst by coupling the active component of a transition metal oxide(TMO) with the MXene materials in lithium-oxygen battery. 展开更多
关键词 MXene Nanosized CoO Li-O2 batteries Cathode catalyst
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Motivation of low-energy d orbital from an enhanced intermediate spin state in Fe-doped 2D monolayers boosting electrocatalysis of Li-O2 batteries 认领 引用
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作者 Dongmei Zhang Pengxiang Zhang +7 位作者 Xiaomin Xu Hancheng Cao Zelong Wang Bao-Wen Li Yong Du Jianchuan Wang Zhanhu Guo Feng Dang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第6期12-21,I0002,共10页
The electronic structure of cathode catalysts has a significant influence on the electrocatalytic performance of Li-O2 batteries(LOBs),which are considered a promising next-generation energy storage system.The prec... The electronic structure of cathode catalysts has a significant influence on the electrocatalytic performance of Li-O2 batteries(LOBs),which are considered a promising next-generation energy storage system.The precise modulation of spin state and orbital interaction at the active metal centers is pivotal to optimizing catalytic performance.Herein,Fe and Co are introduced into Ti vacancies in 2D lepidocrocite-type Ti0.87O2 monolayers to explore the effect of varying spin states on the catalytic behavior of LOBs.Both FeTiO and CoTiO exhibit orbital coupling between low-energy t2gorbitals and reactants.Unlike the high-energy egorbital filling for efficient d-p coupling at a high spin state,the Fe site presents an enhanced intermediate spin state and motivates the low-energy d orbital with poor catalytic activity.It is demonstrated that this enhanced intermediate spin state promotes the charge transfer efficiency and redox kinetics of FeTiO by generating more unpaired electrons for the fully occupied dyzorbital with low energy,which exquisitely matches with the O 2p orbital of the LiO2 key intermediate.As cathode catalysts in LOBs,FeTiO delivers a stable cycling performance(325 cycles at 1 A g-1)and an ultralong operating lifespan of 3400 h.This work highlights the critical role of spin-state manipulation for dopants in the rational design of highly efficient cathode catalysts in LOBs. 展开更多
关键词 Spin state 2D monolayers Cathode catalysts Li-O2batteries DFT calculations
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MnO Nanocubes Enabling Charging Potential of Li-O2Batteries to 3.25 V in a LiMnO4-dominated Novel Reaction Mechanism 认领 引用
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作者 LI Zhuxin LI Xufeng +5 位作者 SHU Qingzhu MA Kai YU Hongquan ZHANG Yong LIU Shuhong ZHAO Hong 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS CSCD 2026年第2期296-303,共8页
We proposed a strategy to address the issue by synthesizing MnO with half-filled 3 d electron orbitals.That is,MnO nanocubes with an edge length of 61.82 nm were successfully prepared through electros-pinning and one-... We proposed a strategy to address the issue by synthesizing MnO with half-filled 3 d electron orbitals.That is,MnO nanocubes with an edge length of 61.82 nm were successfully prepared through electros-pinning and one-step pyrolysis as the cathode electrode for Li-O2batteries.It is observed that the intermediate LiMnO4rather than Li2O2is formed when LiO2interactes with MnO(111)during the discharge process.It is precisely because of LiMnO4that reduces its charge overpotential to 0.29 V.The novel reaction mechanism dominated by LiMnO4further facilitates the lower charge overpotential,thereby enhancing the energy efficiency of the batteries. 展开更多
关键词 MnO nanocubes LiMnO4 low charge overpotential Li-O2 batteries
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Self-Supporting Pt-C60@GO Catalytic Cathodes for Advanced Flexible Li-O2 Batteries 认领 引用
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作者 Zhiguang Zhao Kai Zhang +10 位作者 Junfan Zhang Yawen Liu Zhao Lv Kaijie Yang Jingze Guo Xiaoyan Zhang Yuanxing Zhang Daobin Mu Xiangyi Luo Feng Wu Guoqiang Tan 《Carbon Energy》 SCIE EI CAS CSCD 2026年第4期119-129,共11页
Developing efficient and durable Pt-C catalytic cathodes is crucial for enhancing Li-O2 batteries;however,it remains a significant challenge.Here,we designed a self-supporting three-dimensional Pt-C60@GO cathode... Developing efficient and durable Pt-C catalytic cathodes is crucial for enhancing Li-O2 batteries;however,it remains a significant challenge.Here,we designed a self-supporting three-dimensional Pt-C60@GO cathode and demonstrated its flexible use in the large-area battery assembly.Pt-C60@GO cathode features parallel structurally continuous graphene oxide films,within which fullerene nanospheres are uniformly embedded,and platinum nanodots that are also equably attached,forming a longitudinally ordered stacking structure.The obtained cathode exhibits highly exposed platinum active sites with robust Pt-C and Pt-O bonding interactions,demonstrating remarkable electrocatalytic activity and electrochemical stability.This enables promising electrochemical performance,including a high areal capacity of 3.70 mAh cm-2,a low cell overpotential of 0.48 V,and an excellent cycle stability exceeding 100 cycles.Notably,this self-supporting electrode design facilitates the flexible battery assembly,where a single-layered Pt-C60@GO//LiMg pouch-cell displays a high energy density of 324.6 Wh kg-1and a stable cycle life over 10 cycles in air. 展开更多
关键词 catalytic cathode flexible Li-O2batteries fullerene graphene oxide platinum
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Surface Properties of Electrode Materials:A Key Factor Affecting the Catalytic Activity of Redox Mediators in Li-O2Battery Discharge 认领 引用
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作者 Zhengcai Zhang Dulin Huang +3 位作者 Xiaohui Peng Zhang Zhang Yaying Dou Zhen Zhou 《Energy & Environmental Materials》 SCIE EI CAS CSCD 2026年第1期102-108,共7页
Redox mediators(RMs)represent the most promising strategy to address the sluggish kinetics of lithium-oxygen(Li-O2)batteries.To achieve high-energy and cost-effective Li-O2batteries,carbon materials are typicall... Redox mediators(RMs)represent the most promising strategy to address the sluggish kinetics of lithium-oxygen(Li-O2)batteries.To achieve high-energy and cost-effective Li-O2batteries,carbon materials are typically regarded as ideal cathodes in these systems.However,the impact of their surface properties—which often regulate specific discharge pathways—on the RM-mediated oxygen reduction reaction(ORR)remains unclear.In this study,CNTs electrodes with different surface properties are fabricated.Results suggest that CNTs with more surface defects not only promote the unmediated discharge pathway even in RMs-involved battery systems but also exacerbate the corrosion of carbon cathodes.This,in turn,leads to the undesired accumulation of Li2O2and Li2CO3on the cathode surface,which hinders effective and continuous electron transfer between the cathode and RMs,ultimately decreasing the catalytic activity of RMs.As a result,the discharge capacity of the battery is seriously diminished,especially at large current densities.These findings underscore the significance of surface engineering in advancing the performance of RMs-assisted Li-O2batteries. 展开更多
关键词 carbon nanotube Li-O2Battery oxygen reduction reaction redox mediator surface property
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Unlocking Reversible Mn2+/MnO2Chemistry in Semisolid Slurry Electrodes for High-Performance Aqueous Zn-Mn Batteries 认领 引用 被引量：1
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作者 Zefang Yang Qi Zhang +6 位作者 Chao Hu Yougen Tang Jinchi Li Qi Wang Wanhai Zhou Dongliang Chao Haiyan Wang 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第5期165-180,共16页
Electrolytic Zn-MnO2batteries arepromising candidates for safe and sustainable energystorage owing to their high voltage,environmentalbenignity,and cost-effectiveness.However,practicalapplications are hindered by t... Electrolytic Zn-MnO2batteries arepromising candidates for safe and sustainable energystorage owing to their high voltage,environmentalbenignity,and cost-effectiveness.However,practicalapplications are hindered by the poor conductivity andthe irreversible dissolution of conventionalε-MnO2deposits.Herein,we report a scalable semisolid slurryelectrode architecture that enables stable MnO2deposition/dissolution using a three-dimensional percolatingnetwork of carbon nanotubes(CNTs)as both conductivematrix and deposition host.The slurry systempromotes the formation of highly conductiveγ-MnO2owing to enhanced charge transfer kinetics,enablingoverall dissolution rather than the localized separationtypically seen in traditional electrodes.The Zn-MnO2slurry cell exhibits a reversible areal capacity approaching 60 mAh cm-2.Moreover,theflowable nature of the slurry allows electrochemically inactive MnO2formed during dissolution to be reconnected and reactivated by CNTs inthe rheological network,ensuring deep utilization and cycling stability.This work establishes a slurry electrode strategy to improve electrolyticMnO2reactions and offers a viable pathway toward renewable aqueous batteries for grid-scale applications. 展开更多
关键词 Electrolytic Zn-MnO2batteries Slurry batteries MnO2deposition/dissolution MnO2mass loading γ-MnO2phase
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Li-SOCl2 batteries:Current status,practical challenges,and future perspectives 认领 引用
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作者 Hui Li Dongbo Zhang +4 位作者 Huayi Qian Rong Chen Yuliang Cao Xinping Ai Jiliang Wu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第2期365-401,I0009,共37页
As a high-energy-density primary battery,the Li-SOCl2 battery offers significant advantages over other primary systems,including a high operating voltage,wide temperature tolerance,and low self-discharge rate.Howev... As a high-energy-density primary battery,the Li-SOCl2 battery offers significant advantages over other primary systems,including a high operating voltage,wide temperature tolerance,and low self-discharge rate.However,owing to the irreversible electrochemical reaction mechanism,despite its energy density of up to 700 Wh kg-1 at the cell level,this battery system has remained confined to the category of primary batteries,thereby limiting its use in cyclic applications.Recent advances in electrochemical technologies have enabled the reversible redox chemistry of Li-SOCl2 batteries,transforming them into rechargeable systems.This article provides a systematic overview of the technical evolution,reaction mechanisms,safety constraints,engineering countermeasures,and electrochemical performance enhancement of Li-SOCl2 primary batteries since their introduction.First,the modification methods for the lithium anode,carbon cathode,electrolyte,and electrocatalyst in Li-SOCl2 primary batteries are discussed,along with their mechanisms for improving electrochemical performance.We then review the SOCl2-based rechargeable Li metal batteries(LMBs)that evolved from the Li-SOCl2 primary batteries.With their higher energy density,these systems have become promising candidates to replace traditional Li-ion batteries(LIBs).This review focuses on the construction of key components,such as the positive electrode carrier,novel alloy anode,and electrolyte,as well as their impact on electrochemical performance in rechargeable batteries.Finally,we summarize current research progress and propose future directions for SOCl2-based LMBs aimed at enhancing overall electrochemical performance.These insights provide a theoretical foundation for the development of next-generation high-energy-density energy-storage technologies. 展开更多
关键词 Li-SOCl2batteries Lithium primary batteries Lithium metal batteries New rechargeable lithium batteries Li-Cl2batteries
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Single-Atom-Dispersed FeNC/FeS2 Nanocluster for High-Performance Sodium Metal Battery With Hybrid Electrochemical Behavior 认领 引用
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作者 Yuan Liu Geng Li +9 位作者 Shunxian Yu Xinran Qi Zhuang‐Chun Jian Wei Zhan Baoxiu Hou Shuming Zeng Hui Shao Jianjun Song Yao Xiao Xiaoxian Zhao 《Carbon Energy》 SCIE EI CAS CSCD 2026年第3期117-128,共12页
The rate capability and cycling stability of sodium metal batteries taking FeS2 or sulfur as cathode are limited due to their low reaction kinetics and severe shuttle effect.Herein,we rationally design a novel sing... The rate capability and cycling stability of sodium metal batteries taking FeS2 or sulfur as cathode are limited due to their low reaction kinetics and severe shuttle effect.Herein,we rationally design a novel single-atom-dispersed S2-FeNC/FeS2 nanocluster heterojunction embedded in carbon spheres(SFNC/FeS2) for the electrode material of sodium metal batteries.Interestingly,during the discharging process,the Na+ is inserted into FeS2 to generate Na2S,as well as the unique electrochemical reaction between S2-FeNC and Na+ to form Na2S.Meanwhile,the FeNC can adsorb Na2S and catalyze the conversion from Na2S and Fe to FeS2 or from Na2S and FeNC to S2-FeNC for suppressing the shuttle effect and promoting the distinct hybrid reversible electrochemical behavior,which improves performance tremendously.Notably,the SFNC/FeS2 electrode delivers a specific capacity of 338.7 mAh g-1 after superlong 2000 cycles at a current density of 5.0 A g-1 and achieves a high energy density of 430.1 Wh Kg-1 at a current density of 0.05 A g-1.This work presents a novel approach to studying sodium metal batteries with hybrid behavior for excellent high energy density and cycling stability. 展开更多
关键词 electrochemical behavior Fe single atom FeS2 sodium metal battery sodium sulfur battery
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CeO2regulated vacancies and coordination environment ofδ-MnO2cathode for durable flexible zinc-ion batteries 认领 引用
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作者 Shang Wang Meng Xie +5 位作者 Jiayue Wen Xinxin Wang Xinyang Ma Geng Li Qing Sun Yanhong Tian 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第5期482-493,I0011,共12页
Aqueous Zn||MnO2batteries have emerged as highly promising for flexible energy storage systems due to their intrinsic safety and environmental benignity.However,their application remains hindered by the limited den... Aqueous Zn||MnO2batteries have emerged as highly promising for flexible energy storage systems due to their intrinsic safety and environmental benignity.However,their application remains hindered by the limited density of electrochemically active sites,poor structural stability,and ambiguous chargestorage mechanisms of MnO2cathodes.Herein,a CeO2nanoparticle-modified layeredδ-MnO2microcrystalline cathode(CeO2@δ-MnO2)is rationally designed,and the underlying energy-storage mechanisms of the Zn||CeO2@δ-MnO2battery are systematically investigated.The short-range ordered microcrystalline structure ofδ-MnO2effectively tailors the coordination environment of Mn centers,inducing abundant oxygen vacancies(Vo)that facilitate synergistic H+/Zn2+co-insertion,thereby substantially enhancing charge-storage capability.Meanwhile,the incorporation of CeO2nanoparticles not only reinforces the structural integrity of the layeredδ-MnO2framework but also triggers pronounced Jahn-Teller distortion,which further promotes Voformation and accelerates electrochemical kinetics.Benefiting from these synergistic effects,the Zn||CeO2@δ-MnO2battery delivers a high reversible capacity of 372.6 mA h g-1at 0.5 A g-1and retains 92.14%of its initial capacity after 2000 cycles,markedly outperforming pristineδ-MnO2.Furthermore,a flexible quasi-solid-state zinc-ion battery with a sandwich configuration exhibits excellent mechanical flexibility and safety,maintaining a high capacity of 240 mA h g-1after 300 bending cycles.This work provides an effective defect-and distortion-engineering strategy for the rational design of high-performance flexible MnO2-based cathodes. 展开更多
关键词 CeO2@δ-MnO2cathode Jahn-Teller effect Microcrystals Oxygen vacancies Flexible battery
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From Two-Electron to Four-Electron System:Electrolyte Regulation for Advanced Aqueous Zn-I2Batteries 认领 引用
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作者 Yucong Wang Ruifeng Huang +8 位作者 Zhangchi Yang Shaojian Zhang Lijing Yan Weijie Chen Xiaolong Lin Yongjun Li Shuxing Wu Zhan Lin Jun Lu 《Carbon Energy》 SCIE EI CAS CSCD 2026年第5期28-50,共23页
Aqueous Zn-I2batteries(AZIBs)represent an efficient energy storage technology,with the emerging four-electron redox mechanism further enhancing their application value.However,the advancement toward commercial impl... Aqueous Zn-I2batteries(AZIBs)represent an efficient energy storage technology,with the emerging four-electron redox mechanism further enhancing their application value.However,the advancement toward commercial implementation requires addressing key challenges inherent to the electrode-electrolyte interface.Apart from electrode optimization,electrolyte design is a pivotal strategy to tackle the interface issues and an inevitable road to realize the four-electron redox reaction.In recent years,significant research efforts have been directed toward advancing AZIBs through electrolyte engineering.This review systematically summarizes recent progress in electrolyte-regulated AZIBs.First,fundamental principles of AZIBs were presented,including their working mechanisms and inherent challenges related to both the zinc anode and iodine cathode.Furthermore,strategies based on functional additives,highly concentrated electrolytes,cosolvents,Zn salts,and hydrogel electrolytes are analyzed to evaluate their effectiveness in optimizing both traditional two-electron and advanced four-electron redox systems.After thoroughly discussing the zinc utilization and gas evolution of zinc anode,practical AZIBs configurations,that is,soft-pack battery,flexible battery,and microbattery,are reviewed.Finally,prospective directions and development strategies are proposed to advance the practical implementation of AZIBs. 展开更多
关键词 aqueous Zn-I2battery electrolyte design four-electron redox functional additive polyiodide shuttle
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Nanosized Anatase TiO2 with Exposed(001)Facet for High-Capacity Mg2+Ion Storage in Magnesium Ion Batteries 认领 引用
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作者 Rong Li Liuyan Xia +6 位作者 Jili Yue Junhan Wu Xuxi Teng Jun Chen Guangsheng Huang Jingfeng Wang Fusheng Pan 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第1期438-457,共20页
Micro-sized anatase TiO2 displays inferior capacity as cathode material for magnesium ion batteries because of the higher diffusion energy barrier of Mg2+in anatase TiO2 lattice.Herein,we report that nanosize... Micro-sized anatase TiO2 displays inferior capacity as cathode material for magnesium ion batteries because of the higher diffusion energy barrier of Mg2+in anatase TiO2 lattice.Herein,we report that nanosized anatase TiO2 exposed(001)facet doubles the capacity compared to the micro-sized sample ascribed to the interfacial Mg2+ion storage.First-principles calculations reveal that the diffusion energy barrier of Mg2+on the(001)facet is significantly lower than those in the bulk phase and on(100)facet,and the adsorption energy of Mg2+on the(001)facet is also considerably lower than that on(100)facet,which guarantees superior interfacial Mg2+storage of(001)facet.Moreover,anatase TiO2 exposed(001)facet displays a significantly higher capacity of 312.9 mAh g−1 in Mg-Li dual-salt electrolyte compared to 234.3 mAh g−1 in Li salt electrolyte.The adsorption energies of Mg2+on(001)facet are much lower than the adsorption energies of Li+on(001)facet,implying that the Mg2+ion interfacial storage is more favorable.These results highlight that controlling the crystal facet of the nanocrystals effectively enhances the interfacial storage of multivalent ions.This work offers valuable guidance for the rational design of high-capacity storage systems. 展开更多
关键词 Magnesium ion batteries High capacity Nanosized anatase TiO2 Crystal facet Interfacial ion storage
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Magnetic-Field Modulation of Na3V2(PO4)3Crystal Orientation for Enhanced Sodium-Ion Battery Performance 认领 引用
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作者 Pengcheng Wang Xuqi Lin +6 位作者 Houlin Cheng Ciqi Yuan Yongping Zheng Yingbin Lin Zhigao Huang Hao Chen Jiaxin Li 《Carbon Energy》 SCIE EI CAS CSCD 2026年第2期221-235,共15页
Na3V2(PO4)3(NVP)is a promising electrode material that exhibits magnetic anisotropy;however,the potential of this magnetic anisotropy to optimize battery performance has been largely unexplored.This study ... Na3V2(PO4)3(NVP)is a promising electrode material that exhibits magnetic anisotropy;however,the potential of this magnetic anisotropy to optimize battery performance has been largely unexplored.This study proposes a cost-effective and efficient method to induce the alignment of NVP along the(113)crystal plane by applying a vertical magnetic field during the slurry coating process,thereby enhancing its battery performance.Comprehensive structural characterizations and theoretical analysis elucidate the structure-activity relationship between the preferred crystal orientation and ion transport kinetics,facilitating the formation of more ordered Na+deintercalation pathways in NVP electrodes.This alignment reduces electrode tortuosity,enhances interfacial compatibility,and substantially improves battery performance,particularly in terms of high-rate cycling capability.As a result,the magnetic-field-modulated NVP(NVP-M⊥)electrode exhibits a high capacity retention of85.1%after 500 cycles at 5 C,significantly surpassing that of the pristine electrode.The NVP-M⊥electrode also demonstrates considerable reversible capacity at 40 C and maintains excellent stability under high temperature and prolonged cycling conditions.Furthermore,superior battery performance is observed in the assembled NVP-M⊥‖hard-carbon pouch cell and commercial NVP electrode following magnetic-field modulation,thereby validating the efficacy of this method.Consequently,this magnetic-field-induced crystal-orientation optimization strategy provides an innovative approach for low-cost and highthroughput preparation of high-performance sodium-ion batteries. 展开更多
关键词 battery performance magnetic‐field modulation Na3V2(PO4)3cathode sodium‐ion batteries thermalsafety
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Zinc-air battery-H2O2generation system:Current progress,key challenges,optimization strategies and future developments 认领 引用
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作者 Junjie Wang Shulin Gao Sujuan Hu 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第6期216-230,共15页
The zinc-air battery(ZAB)-hydrogen peroxide(H2O2)generation system produces H2O2through a 2-electron oxygen reduction reaction(ORR)at the ZAB air cathode while simultaneously providing external electrical ... The zinc-air battery(ZAB)-hydrogen peroxide(H2O2)generation system produces H2O2through a 2-electron oxygen reduction reaction(ORR)at the ZAB air cathode while simultaneously providing external electrical power.This system offers a promising,eco-friendly solution for both energy storage and chemical production.Despite its promise,a comprehensive review of this topic is still scarce.To fill this void,this review discusses the background and mechanisms of the ZAB-H2O2generation system and covers approaches to achieving efficient and stable operation through 2e⁻ORR catalyst design and optimization,the regulation of the electrolyte,cathode configuration design,and electrochemical operating conditions.From the perspective of the cathode,anode,electrolyte,and their integration with energy systems,this review systematically analyzes the key challenges and optimization strategies.In addition,this review summarizes the main technical bottlenecks this system faces and proposes potential solutions and development suggestions for future research and practical applications. 展开更多
关键词 Zinc-air battery H2O2 2e-ORR Electrochemical catalysts Application
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Regulation Engineering of Alkali Metal Interlayer Pillar in P2‑Type Cathode for Ultra‑High Rate and Long‑Term Cycling Sodium‑Ion Batteries 认领 引用
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作者 Xu Wang Zixiang Yang +7 位作者 Yujia Cai Heng Ma Jinglei Xu Rabia Khatoon Zhizhen Ye Dashuai Wang Muhammad Tariq Sajjad Jianguo Lu 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第3期876-892,共17页
Layered oxides have attracted significant attention as cathodes for sodium-ion batteries(SIBs)due to their compositional versatility and tuneable electrochemical performance.However,these materials still face challeng... Layered oxides have attracted significant attention as cathodes for sodium-ion batteries(SIBs)due to their compositional versatility and tuneable electrochemical performance.However,these materials still face challenges such as structural phase transitions,Na+/vacancy ordering,and Jahn–Teller distortion effect,resulting in severe capacity decay and sluggish ion kinetics.We develop a novel Cu/Y dual-doping strategy that leads to the formation of"Na–Y"interlayer aggregates,which act as structural pillars within alkali metal layers,enhancing structural stability and disrupting the ordered arrangement of Na+/vacancies.This disruption leads to a unique coexistence of ordered and disordered Na+/vacancy states with near-zero strain,which significantly improves Na+diffusion kinetics.This structural innovation not only mitigates the unfavorable P2–O2 phase transition but also facilitates rapid ion transport.As a result,the doped material demonstrates exceptional electrochemical performance,including an ultra-long cycle life of 3000 cycles at 10 C and an outstanding high-rate capability of~70 mAh g−1at 50 C.The discovery of this novel interlayer pillar,along with its role in modulating Na+/vacancy arrangements,provides a fresh perspective on engineering layered oxides.It opens up promising new pathways for the structural design of advanced cathode materials toward efficient,stable,and high-rate SIBs. 展开更多
关键词 Sodium-ion batteries Layered oxides P2-type phase Dual-site doping Regulation engineering
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Preparation and electrochemical performance of nitrogen-doped carbon-coated CuxS nanobox catalyst for hybrid Na-CO2 batteries 认领 引用
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作者 Jing ZHAN Zi-zhuo HUA +1 位作者 Fei-xiang WU Qi-hou LI 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2026年第3期929-942,共14页
To promote CO2redox kinetics on the cathode of hybrid sodium-carbon dioxide(Na-CO2)batteries,hollow cubic CuS nanoboxes were encapsulated in polypyrrole and polydopamine by in situ polymerization of pyrrole and ... To promote CO2redox kinetics on the cathode of hybrid sodium-carbon dioxide(Na-CO2)batteries,hollow cubic CuS nanoboxes were encapsulated in polypyrrole and polydopamine by in situ polymerization of pyrrole and dopamine monomers,respectively,and coupled with high-temperature heat treatment to obtain nitrogen-carbon encapsulated CuxS@NCPPyand CuxS@NCPDA catalysts.The results show that the encapsulation of nitrogen-doped carbon not only increases the specific surface area and improves the electron affinity but also promotes the synergistic interaction between the CuS-based active species and the defect carbon,thus providing abundant active sites for CO2conversion.The electrochemical performances of the carbon-coated modified samples were all improved,especially the hybrid Na-CO2battery based on CuxS@NCPPy,which showed a low voltage gap of 0.74 V at 0.1 mA/cm2and a high power density of 3.42 mW/cm2. 展开更多
关键词 CO2reutilization copper(I)sulfide catalyst nitrogen-doped carbon high power density Na-CO2batteries
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Strategies to Enhance Ionic Conductivity of Na3Zr2Si2O12 Solid Electrolyte for Advanced Solid-State Sodium Batteries 认领 引用
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作者 Jiawen Hu Zixing Chen +3 位作者 Xi Wang Changsheng Ding Yongfeng Li Yanfeng Gao 《Carbon Energy》 SCIE EI CAS CSCD 2026年第3期162-200,共39页
Solid-state sodium batteries(SSSBs)have been highly prized as a promising alternative to conventional battery systems using organic liquid electrolytes due to their improved safety,higher energy density,and substantia... Solid-state sodium batteries(SSSBs)have been highly prized as a promising alternative to conventional battery systems using organic liquid electrolytes due to their improved safety,higher energy density,and substantial resources and low cost of sodium.Na3Zr2Si2PO12(NZSP)solid electrolyte is attracting considerable interest owing to its excellent thermal and chemical stability and favorable compatibility with Na metal anode and high-voltage cathode.However,two main challenges of poor roomtemperature ionic conductivity and high interfacial resistance limit the application of NZSP electrolyte in SSSBs.So far,intensive efforts have been devoted to developing modification strategies to improve the room-temperature ionic conductivity of NZSP.This review aims to provide a comprehensive summary and discussion of some optimization strategies for enhancing the room-temperature ionic conductivity of the NZSP solid electrolyte.These optimization strategies are categorized into foreignion doping or substitution,sintering behavior modulation,and regulation of chemical composition based on precursors,and their optimization mechanisms are also elaborated.Finally,the prospects of NZSP-based solid electrolytes are presented.This review is expected to offer better guidance for designing and developing high-performance NZSP-based solid electrolytes for accelerating the practical application of SSSBs. 展开更多
关键词 ionic conductivity Na3Zr2Si2PO12 optimization strategies solid-state electrolyte solid-state sodium batteries
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Ti3C2Tx MXene:An all-rounder material for next-generation solid-state batteries 认领 引用
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作者 Sunil Kumar Sung Ryul Choi +1 位作者 Syed Muhammad Zain Mehdi Yongho Seo 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第2期61-90,I0004,共30页
2D MXenes,particularly Ti3C2Tx,have emerged as promising multifu nctional materials for advancing solidstate batteries(SSBs).While SSBs offer superior safety and energy density over liquid-electrolyte systems... 2D MXenes,particularly Ti3C2Tx,have emerged as promising multifu nctional materials for advancing solidstate batteries(SSBs).While SSBs offer superior safety and energy density over liquid-electrolyte systems,critical challenges such as interfacial resistance,limited ion transport,dendrite growth,and mechanical degradation hinder their widespread adoption.This review aims to provide a comprehensive analysis of the roles and fu nctions of Ti3C2Tx MXenes in SSBs,emphasizing their application as interlayers,anode/cathode additives,and current collectors,and highlighting their impact on interracial stability,ionic/electro nic transport,electrochemical performance,and cycling durability in SSB architectures.Unlike other 2D materials,Ti3C2Tx exhibits outsta nding metallic conductivity,tu nable surface terminations,hydrophilicity,and excellent mechanical flexibility,making it ideal for multifu nctional integration in SSBs,As a component in solid-state electrolytes(SSEs),Ti3C2Tx improves ionic conductivity and mecha nical strength.When used in electrodes,it serves as a conductive scaffold that enhances charge transport and structural durability.Additionally,its role as an interfacial interlayer effectively reduces interfacial impedance,accommodates volume changes,and suppresses dendrite formation.Its lightweight and high conductivity enable its use as a current collector.This review highlights recent advances in Ti3C2Tx-based components for SSBs like Li-,Na-,Zn,Li-S,etc.,emphasizing enha ncements in ion/electron transport,interfacial stability,and structural robustness.Finally,the review outlines challenges and opportunities along with a future outlook focused on improving the MXene oxidation,tailoring surface terminations,improving long-term stability,and exploring scalable fabrication strategies for MXene-based SSB components. 展开更多
关键词 2D Materials Multifunctional Ti3C2TxMXene Solid-state batteries Solid-state electrolytes Interface layer Current collector
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Tailoring eg Orbital Occupancy of Fe in Ni-Doped Na4.3Fe3(PO4)2P2O7 Cathode for High-Performance Sodium-Ion Batteries 认领 引用
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作者 Xiaoxue Wang Yuhui Xu +14 位作者 Jianhua Zhang Yukun Xi Ningjing Hou Yixuan Chen Dongzhu Liu Zihao Yang Haocheng Wen Jia Kang Xiaoli Yang Xuexia Song Jingjing Wang Wenbin Li Jiujun Zhang Kun Zhang Xifei Li 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第7期469-484,共16页
Na4Fe3(PO4)2P2O7(NFPP)is regarded as a prospective cathode for sodium-ion batteries(SIBs)because of its high structural stability and cost-effectiveness.However,its practical application is hindered ... Na4Fe3(PO4)2P2O7(NFPP)is regarded as a prospective cathode for sodium-ion batteries(SIBs)because of its high structural stability and cost-effectiveness.However,its practical application is hindered by intrinsically low electronic conductivity.Herein,an unconventional electron transfer mechanism from Ni2+to Fe3+ions is unveiled in Ni-doped Na4.3Fe3(PO4)2P2O7(NFPP-Ni)cathode,which facilitates electronic coupling within the Fe-O-Ni coordination unit and thereby effectively boosts electron transport.Moreover,the redox kinetics and reversibility of NFPP materials are predominantly governed by the degree of Fe-O covalency.The intermediate eg occupancy of Fe2+,modulated by the presence of Ni2+,optimizes the overlap between Fe d and O p orbitals.The adjustment of Ni dopant strikes a balance between accelerating Na+diffusion kinetics and mitigating lattice strain during cycling.As a result,the NFPP-Ni electrode displays impressive rate capacity(121.0 mAh g-1at 0.1C/80.9 mAh g-1at 10C)and stable cyclability(89.1%capacity retention after 1000 cycles).More importantly,the relationship between Fe eg orbital occupancy and Fe-O covalency in NFPP as modulated by various transition metal cations(Ni2+,Mn2+,Zn2+,Co2+and Cu2+)with different electron configurations are systematically elucidated,thereby providing insights for the commercial development of sodium-ion batteries(SIBs).Tuning the eg orbital occupancy of Fe in Na4.3Fe3(PO4)2P2O7cathode can effectively optimize the spatial overlap between Fe d and O p orbitals with excellent rate capability for sodium-ion batteries.The eg could be a significant descriptor for Fe-O covalency that describes a volcano curve as a function of eg. 展开更多
关键词 Na4.3Fe3(PO4)2P2O7 Electronic coupling eg orbital occupancy Descriptor Sodium-ion batteries
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Tailoring sp3 /sp2 carbon hybridization to balance the trade-off between active site and conduction for rapid Li-ion intercalation chemistry in dual-carbon batteries 认领 引用
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作者 Xiaoqi Gong Jing Li +7 位作者 Yining Lao Fujie Liu Yaozheng Pan Linfeng Zhong Cheng Wang Yanyu Gao Cong Liu Dingshan Yu 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第3期936-945,共10页
Dual-carbon batteries(DCBs)have emerged as an appealing candidate for large-scale energy storage,yet the common trade-off between active sites and electronic conduction in carbon materials engenders a main challenge t... Dual-carbon batteries(DCBs)have emerged as an appealing candidate for large-scale energy storage,yet the common trade-off between active sites and electronic conduction in carbon materials engenders a main challenge towards efficient DCBs.Here,we introduce a heteroatom-doped sp3 /sp2 hybridized carbon fiber membrane(cPAN-Gr)as a universal binder-free active electrode that effectively overcomes this trade-off,enabling efficient Li-ion intercalation chemistry for advanced DCBs.By strategically tuning the sp3 and sp2 carbon hybridization,the interlayer interaction,geometric and electronic structures of c PANGr are simultaneously optimized,which facilitates rapid Li-ion adsorption,smooth interlayer transport,and efficient electron transport by maximizing the synergy between sp2 -and sp3 -hybridized carbon.This,coupled with a 3D porous network structure,endows the c PAN-Gr with superior Li-ion storage capability and fast reaction kinetics.Therefore,the c PAN-Gr electrode delivers a high reversible capacity of 345 m A h g-1,excellent rate capability(50 C),and an ultralong cycle life over 10,000 cycles,outperforming other reported carbon-based electrodes.Moreover,the constructed DCB exhibits a large specific capacity of 135 m A h g-1,long-term cyclability over 500 cycles,and a remarkable energy density of 524.4 Wh kg-1.The c PAN-Gr electrode can also be expanded to construct a LiFePO4//cPAN-Gr full battery.Combined theoretical and experimental studies reveal the crucial role of an optimized sp3 /sp2 ratio(79%)with topological defects and pyridine/pyrrolic N sites on the performance enhancement.This work offers new insights into the design of advanced carbon materials for DCBs and beyond. 展开更多
关键词 Dual carbon batteries Carbon fiber membrane electrodes Sp3/sp2carbon hybridization Topological defects Li-ion intercalation chemistry
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