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Hetero Nucleus Growth Stabilizing Zinc Anode for High‑Biosecurity Zinc‑Ion Batteries

Nano-Micro Letters 2023年第12期15卷 349-360页

作者： Jingjing Li Zhexuan Liu Shaohua Han Peng Zhou Bingan Lu Jianda Zhou Zhiyuan Zeng Zhizhao Chen Jiang Zhou Department of Plastic Surgery and National Clinical Research Center for Geriatric Disorders Xiangya HospitalCentral South UniversityChangsha 410008People’s Republic of China School of Materials Science and Engineering Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional MaterialsCentral South UniversityChangsha 410083People’s Republic of China hunan Provincial Key Defense Laboratory of High Temperature Wear‑Resisting Materials and Preparation Technology Hunan University of Science and TechnologyXiangtan 411201People’s Republic of China School of Physics and Electronics Hunan UniversityChangsha 410082People’s Republic of China Department of Plastic Surgery The Third Xiangya HospitalCentral South UniversityChangsha 410013People’s Republic of China Department of Materials Science and Engineering City University of Hong Kong83 Tat Chee AvenueKowloon 999077Hong KongPeople’s Republic of China

Biocompatible devices are widely employed in modernized lives and medical fields in the forms of wearable and implantable devices,raising higher requirements on the battery biocompatibility,high safety,low cost,and excellent electrochemical performance,which become the evaluation criteria toward developing feasible biocompatible ***,through conducting the battery implantation tests and leakage scene simulations on New Zealand rabbits,zinc sulfate electrolyte is proved to exhibit higher biosecurity and turns out to be one of the ideal zinc salts for biocompatible zinc-ion batteries(ZIBs).Furthermore,in order to mitigate the notorious dendrite growth and hydrogen evolution in mildly acidic electrolyte as well as improve their operating stability,Sn hetero nucleus is introduced to stabilize the zinc anode,which not only facilitates the planar zinc deposition,but also contributes to higher hydrogen evolution ***,a long lifetime of 1500 h for the symmetrical cell,the specific capacity of 150 mAh g^(-1)under 0.5 A g^(-1)for the Zn-MnO_(2)battery and 212 mAh g^(-1)under 5 A g^(-1)for the Zn—NH4V4O10 battery are *** work may provide unique perspectives on biocompatible ZIBs toward the biosecurity of their cell components.

关键词： Aqueous zinc-ion batteries Biocompatible devices Operating stability Zinc anode Zinc salts electrolyte

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A functionalized separator enables dendrite-free Zn anode via metal-polydopamine coordination chemistry

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InfoMat 2023年第3期5卷 11-20页

作者： Yanfen Liu Shude Liu Xuesong Xie Zhicheng Li Pinji Wang Bingan Lu Shuquan Liang Yan Tang Jiang Zhou School of Materials Science and Engineering Hunan Provincial Key Laboratory of Electronic Packaging and Advanced Functional MaterialsCentral South UniversityChangshaHunanthe People's Republic of China JST-ERATO Yamauchi Materials Space-Tectonics Project and International Center for Materials Nanoarchitectonics National Institute for Materials ScienceTsukubaIbarakiJapan School of Mechanical Engineering Yonsei UniversitySeoulRepublic of Korea School of Physics and Electronics Hunan UniversityChangshaHunanthe People's Republic of China

Designing a multifunctional separator with abundant ion migration paths is crucial for tuning the ion transport in rocking-chair-type ***,a polydopamine-functionalized PVDF(PVDF@PDA)nanofibrous membrane is designed to serve as a separator for aqueous zinc-ion batteries(AZIBs).The functional groups(OH and NH)in PDA facilitate the formation of Zn O and Zn N coordination bonds with Zn ions,homogenizing the Zn-ion flux and thus enabling dendrite-free Zn ***,the PVDF@PDA separator effectively inhibits the shuttling of V-species through the formation of V-O coordination *** a result,the Zn/NH_(4)V_(4)O_(10) battery with the PVDF@PDA separator exhibits enhanced cycling stability(92.3%after 1000 cycles at 5 A g^(-1))and rate capability compared to that using a glass fiber *** work provides a new avenue to design functionalized separators for high-performance AZIBs.

关键词： aqueous zinc-ion batteries coordination bonds dendrite-free Zn deposition separators

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Inorganic Colloidal Electrolyte for Highly Robust Zinc‑Ion Batteries

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Nano-Micro Letters 2021年第4期13卷 247-258页

作者： Jiawei Gao Xuesong Xie Shuquan Liang Bingan Lu Jiang Zhou School of Materials Science and Engineering Central South UniversityChangsha 410083People’s Republic of China School of Physics and Electronics Hunan UniversityChangsha 410082People’s Republic of China Key Laboratory of Electronic Packaging and Advanced Functional Materials of hunan province Central South UniversityChangsha 410083People’s Republic of China

Zinc-ion batteries(ZIBs)is a promising electrical energy storage candidate due to its eco-friendliness,low cost,and intrinsic safety,but on the cathode the element dissolution and the formation of irreversible products,and on the anode the growth of dendrite as well as irreversible products hinder its practical ***,we propose a new type of the inorganic highly concentrated colloidal electrolytes(HCCE)for ZIBs promoting simultaneous robust protection of both cathode/anode leading to an effective suppression of element dissolution,dendrite,and irreversible products *** new HCCE has high Zn^(2+)ion transference number(0.64)endowed by the limitation of SO4^(2−),the competitive ion conductivity(1.1×10^(–2) S cm^(−1))and Zn2+ion diffusion enabled by the uniform pore distribution(3.6 nm)and the limited free *** Zn/HCCE/α-MnO2 cells exhibit high durability under both high and low current densities,which is almost 100%capacity retention at 200 mA g^(−1) after 400 cycles(290 mAh g^(−1))and 89%capacity retention under 500 mA g^(−1) after 1000 cycles(212 mAh g^(−1)).Considering material sustainability and batteries’high performances,the colloidal electrolyte may provide a feasible substitute beyond the liquid and all-solid-state electrolyte of ZIBs.

关键词： Zn-ion battery Palygorskite Inorganic Colloidal electrolyte Cycle stability

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Interfacial adsorption-insertion mechanism induced by phase boundary toward better aqueous Zn-ion battery

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InfoMat 2021年第9期3卷 1028-1036页

作者： Lutong Shan Yiren Wang Shuquan Liang Boya Tang Yongqiang Yang Ziqing Wang Bingan Lu Jiang Zhou School of Materials Science and Engineering Central South UniversityKey Laboratory of Electronic Packaging and Advanced Functional Materials of Hunan ProvinceChangshaHunanPeople's Republic of China Department of Chemistry University of ManchesterManchesterUK School of Physics and Electronics Hunan UniversityChangshaPeople's Republic of China

Biphasic and multiphasic compounds have been well clarified to achieve extraordinary electrochemical properties as advanced energy storage *** the role of phase boundaries in improving the performance is remained to be ***,we reported the biphasic vanadate,that is,Na_(1.2)V_(3)O_(8)/K_(2)V_(6)O_(16)·1.5H_(2)O(designated as Na0.5K0.5VO),and detected the novel interfacial adsorption-insertion mechanism induced by phase *** calculations indicated that large amount of Zn^(2+)and H^(+)ions would be absorbed by the phase boundaries and most of them would insert into the host structure,which not only promote the specific capacity,but also effectively reduce diffusion energy barrier toward faster reaction *** by this advanced interfacial adsorption-insertion mechanism,the aqueous Zn/Na_(0.5)K_(0.5)VO is able to perform excellent rate capability as well as long-term cycling performance.A stable capacity of 267 mA h g^(-1)after 800 cycles at 5 A g^(-1)can be *** discovery of this mechanism is beneficial to understand the performance enhancement mechanism of biphasic and multiphasic compounds as well as pave pathway for the strategic design of highperformance energy storage materials.

关键词： aqueous zinc-ion battery cathode energy storage mechanism phase boundary vanadiumbased materials

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