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Journal of Materials Science & Technology 2008年第2期24卷 211-214页

作者： Hui HUANG Chen WANG Lei zhang Yongping GAN wenkui zhang College of Chemical Engineering and Materials Science Zhejiang University of Technology Hangzhou 310032 China

Well-defined spinel LiMn2O4 powders were synthesized via sintering a precursor, which was prepared by spraydrying method. The effects of sintering process on the structure and electrochemical properties of LiMn2O4 were discussed. It was found that a single sintering could not synthesize a pure LiMn2O4 compound, while two-step sintering procedure consisting of decomposing sprayed precursors at 350℃ and further sintering at an elevated temperature leads to the formation of a single-phased LiMn2O4 with homogeneous particle size distribution. As compared to that sintered in air, the two-step sintered LiMn2O4 in oxygen shows tighter structure and more uniform particle size, as well as better electrochemical properties. It delivers an initial discharge capacity of 131 mAh·g^-1 （1/10C）, and still has excellent cycling stability at higher rate （1/5C）.

关键词： Spinel LiMn2O4 Spray-drying method Li-ion batteries Sintering

ELECTROCHEMICAL PROPERTIES OF Zr-V-Ni SYSTEM HYDROGEN STORAGE ALLOYS

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中国有色金属学会会刊：英文版 1998年第3期8卷 53-56页

作者： Xiaoguang, Yang Xiaobin, zhang Kangying, Shu Ganfu, Lin Yongquan, Lei Qidong, Wang wenkui, zhang Zhejiang Univ Hangzhou China

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１ＩＮＴＲＯＤＵＣＴＩＯＮＩｎｔｈｅｂｉｎａｒｙａｌｏｙｓＺｒＭ２（Ｍ＝Ｖ，ＣｒｏｒＭｎ３ｄｔｒａｎｓｉｔｉｏｎｍｅｔａｌ），ＺｒＶ２ｍａｉｎｌｙｗｉｔｈａＣ１５Ｌａｖｅｓｐｈａｓｅｃａｎａｂｓｏｒｂｔｈｅｈｉｇｈｅｓｔｈｙｄｒｏｇｅｎｃｏｎｔｅｎ...

关键词： Zr V Ni alloys alloying electrode performances

A critical review on composite solid electrolytes for lithium batteries:Design strategies and interface engineering

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Journal of Energy Chemistry 2023年第9期84卷 189-209页

作者： Tianqi Yang Cheng Wang wenkui zhang Yang Xia Hui Huang Yongping Gan Xinping He Xinhui Xia Xinyong Tao Jun zhang College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014ZhejiangChina

The rapid development of new energy vehicles and 5G communication technologies has led to higher demands for the safety,energy density,and cycle performance of lithium-ion batteries as power ***,the currently used liquid carbonate compounds in commercial lithium-ion battery electrolytes pose potential safety hazards such as leakage,swelling,corrosion,and *** electrolytes can be used to mitigate these risks and create a safer lithium ***,high-energy density can be achieved by using solid electrolytes along with high-voltage cathode and metal lithium *** types of solid electrolytes are generally used:inorganic solid electrolytes and polymer solid *** solid electrolytes have high ionic conductivity,electrochemical stability window,and mechanical strength,but suffer from large solid/solid contact resistance between the electrode and *** solid electrolytes have good flexibility,processability,and contact interface properties,but low room temperature ionic conductivity,necessitating operation at elevated *** solid electrolytes(CSEs) are a promising alternative because they offer light weight and flexibility,like polymers,as well as the strength and stability of inorganic *** paper presents a comprehensive review of recent advances in CSEs to help researchers optimize CSE composition and interactions for practical *** covers the development history of solid-state electrolytes,CSE properties with respect to nanofillers,morphology,and polymer types,and also discusses the lithium-ion transport mechanism of the composite electrolyte,and the methods of engineering interfaces with the positive and negative ***,the paper aims to provide an outlook on the potential applications of CSEs in solid-state lithium batteries,and to inspire further research aimed at the development of more systematic optimization strategies for CSEs.

关键词： Inorganic solid electrolytes Polymer solid electrolytes Composite solid electrolytes Interface engineering

Interfaces in Sulfide Solid Electrolyte‑Based All‑Solid‑State Lithium Batteries:Characterization,Mechanism and Strategy

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Electrochemical Energy Reviews 2023年第1期6卷 573-613页

作者： Zhan Wu Xiaohan Li Chao Zheng Zheng Fan wenkui zhang Hui Huang Yongping Gan Yang Xia Xinping He Xinyong Tao Jun zhang College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014ZhejiangChina Institute of Science and Technology for New Energy Xi’an Technological UniversityXi’an 710021ShaanxiChina Department of Engineering Technology University of HoustonHoustonTX 77204USA

Owing to the advantages of high energy density and environmental friendliness,lithium-ion batteries(LIBs)have been widely used as power sources in electric vehicles,energy storage systems and other *** LIBs composed of liquid electrolytes(LEs)have potential safety hazards;thermal runaway easily leads to battery explosion and spontaneous *** realize a large-scale energy storage system with higher safety and higher energy density,replacing LEs with solid-state electrolytes(SSEs)has been *** the many SSEs,sulfide SSEs are attractive because of their high ionic conductivities,easy processabilities and high ***,interfacial issues(interfacial reactions,chemo-mechanical failure,lithium dendrite formation,etc.)between sulfide SSEs and electrodes are factors limiting widespread *** addition,the intrinsic interfacial issues of sulfide SSEs(electrochemical windows,diffusion mechanisms of Li^(+),etc.)should not be *** this review,the behaviors,properties and mechanisms of interfaces in all-solid-state lithium batteries with a variety of sulfide SSEs are comprehensively ***,recent research progress on advanced characterization methods and designs used to stabilize interfaces is ***,outlooks,challenges and possible interface engineering strategies are analyzed and proposed.

关键词： All-solid-state lithium batteries Sulfide solid electrolytes Interface

Revisiting Scientific Issues for Industrial Applications of Lithium–Sulfur Batteries

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Energy & Environmental Materials 2018年第4期1卷 196-208页

作者： Bo Liu Ruyi Fang Dong Xie wenkui zhang Hui Huang Yang Xia Xiuli Wang Xinhui Xia Jiangping Tu State Key Laboratory of Silicon Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang ProvinceSchool of Materials Science&EngineeringZhejiang UniversityHangzhou 310027China College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014China Guangdong Engineering and Technology Research Center for Advanced Nanomaterials School of Environment and Civil EngineeringDongguan University of TechnologyDongguan 523808China

Inspired by high theoretical energy density(-2600 W h kg^(-1))and cost-effectiveness of sulfur cathode,lithium–sulfur batteries are receiving great attention and considered as one of the most promising next-generation high-energy-density ***,over the past decades,the energy density and reliable safety levels as well as the commercial progress of lithium-sulfur batteries are still far from satisfactory due to the disconnection and huge gap between fundamental research and practical application.

关键词： energy storage lithium lithium-sulfur batteries safetyissue sulfurcathode

Liquid-source plasma technology for construction of dual bromine-fluorine-enriched interphases on lithium metal anodes with enhanced performance

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Journal of Materials Science & Technology 2024年第10期177卷 68-78页

作者： Ping Liu Zhong Qiu Feng Cao Yongqi zhang Xinping He Shenghui Shen Xinqi Liang Minghua Chen Chen Wang Wangjun Wan Yang Xia Xinhui Xia wenkui zhang Yangtze Delta Region Institute(Huzhou) University of Electronic Science and Technology of ChinaHuzhou 313002China College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014China School of Materials Science&Engineering Zhejiang UniversityHangzhou 310027China Department of Engineering Technology Huzhou CollegeHuzhou 313000China Institute of Fundamental and Frontier Science University of Electronic Science and Technology of ChinaChengdu 611371China School of Materials Science&Engineering Zhejiang Sci-Tech UniversityHangzhou 310018China Key Laboratory of Engineering Dielectric and Applications(Ministry of Education) School of Electrical and Electronic EngineeringHarbin University of Science and TechnologyHarbin 150080China Zhejiang Academy of Science and Technology for Inspection&Quarantine Zhejiang Hangzhou 311215China State Key Laboratory of Photocatalysis on Energy and Environment Fuzhou UniversityFuzhou 350116China

The electrochemical performance of Li metal anode is closely bound up with the interphase between Li and lithium-loaded skeleton as well as solid electrolyte interphase(SEI)on Li ***,for the first time,we propose a novel liquid-source CHBr_(2)F plasma technology to simultaneously construct dual bromine-fluorine-enriched interphases:NiBr_(2)-NiF_(2) interphase on sponge Ni(SN)skeleton and LiBr-LiF-enriched SEI on Li anode,*** on density functional theory(DFT)calculations and COMSOL multiphysics simulation results,SN skeleton with NiBr_(2)-NiF_(2)interphase can effectively decrease the local current density with good *** the LiBr-LiF-enriched SEI on Li surface can function to block electron tunneling and hinder side electrochemical reduction of electrolyte components,thus suppressing the growth of dendrite and facilitating the homogeneous transportation of lithium ***,the Li/SN electrodes with modified interphases show remarkable stability with a low overpotential of 22.6 mV over 1800 h at 1 mA cm^(-2)/1 mAh cm^(-2)and an exceptional average Coulombic efficiency of 99.6%.When coupled with LiNi_(0.8)Co_(0.1)Mn_(0.1)O_(2)(NCM811)cathode,the full cells deliver improved cycling stability with a capacity retention of 79.5%even after 350 cycles at 0.5 *** study provides a facile and new plasma method for the construction of advanced Li anodes for energy storage.

关键词： Plasma Solid electrolyte interphase LiBr LiF Lithium metal anodes

Enhanced sulfide chemisorption by conductive AI-doped ZnO decorated carbon nanoflakes for advanced Li-S batteries

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Nano Research 2018年第1期11卷 477-489页

作者： Yangbo Kong Jianmin Luo Chengbin Jin Huadong Yuan Ouwei Sheng Liyuan zhang Cong Fang wenkui zhang Hui Huang Yang Xia Chu Liang Jun zhang Yongping Gan Xinyong Tao College of Materials Science and Engineering Zhejiang University of Technology Hangzhou 310014 China

Lithium-sulfur batteries have attracted significant attention recently due to their high theoretical capacity, energy density and cost effectiveness. However, sulfur cathodes suffer from issues such as shuttle effects, uncontrollable deposition of lithium sulfides species, and volume expansion of sulfur, which result in rapid capacity fading and low Coulombic efficiency. In recent years, metal-oxide nanostructures have been widely used in Li-S batteries, owing to their effective inhibition of the shuttle effect and controlled deposition of lithium sulfide. However, the nonconductive metal-oxides used in Li-S batteries suffer from extra diffusion process, which slows down the electrochemical reaction kinetics. Herein, we report the synthesis of carbon nanoflakes decorated with conductive aluminium-doped zinc oxide （AZO@C） nanoparticles, through a facile biotem- plating method using kapok fibers as both the template and carbon source. A sulfur cathode based on the AZO@C nanocomposites shows better electrochemical performance than those of cathodes based on ZnO and A1203 with poor conductivity, with a stable capacity of 927 mAh.g-1 at 0.1C （1C = 1,675 mA.g-1） after 100 cycles. A reversible capacity of 544 mAh.g-1 after 300 cycles was obtained even after increasing the current density to 0.5C, with a 0.039% capacity decay per cycle under a sulfur loading of 3.3 mg-cm-2. Moreover, a capacity of 466 mAh.g-1 after 100 cycles at 0.5C could still be obtained when the sulfur loading was increased to 6.96 ***-2. The excellent electrochemical performance of the AZO@C/S composite can be attributed to its high conductivity of the polar AZO host, which suppresses the shuttle effect while simultaneously improving the redox kinetics in the reciprocal transformation of lithium sulfide species.

关键词： lithium-sulfur battery aluminium-doped zincoxide conductive nanostructure biotemplate carbon nanoflakes

In-situ construction of a Mg-modified interface to guide uniform lithium deposition for stable all-solid-state batteries

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Journal of Energy Chemistry 2021年第4期30卷 272-278页

作者： Tiefeng Liu Jiale Zheng Hualiang Hu Ouwei Sheng Zhijin Ju Gongxun Lu Yujing Liu Jianwei Nai Yao Wang wenkui zhang Xinyong Tao College of Materials Science and Engineering Zhejiang University of TechnologyHangzhou 310014ZhejiangChina

Uniform lithium(Li)deposition in all-solid-state Li metal batteries is greatly influenced by the anode/electrolyte ***,a Mg-modified interface was constructed via the simple in-situ electrochemical reduction of Mg^(2+)from Mg(TFSI)_(2) in polyethylene oxide(PEO)and a Li bis(trifluoromethane)sulfoni mide(Li TFSI)*** confirmed by cryogenic transmission electron microscopy,the anode/electrolyte interface exhibited hybrids consisting of crystalline Mg,Li_(2)O,and Li dots embedded in an amorphous polymer *** crystalline Mg dots guided the uniform Li nucleation and growth,inducing a smoother anode/electrolyte interface compared with the pristine *** 1 wt%Mg(TFSI)_(2) in the PEO-Li TFSI electrolyte,the Mg-modified electrolyte enabled the Li/Li symmetric cells with cycling performance of over 1700 and 1400 h at current densities of 0.1 and 0.2 m A cm^(-2),***,the full LFP/Li cells using the novel Mg-modified electrolyte delivered a cycling lifespan of over 450 cycles with negligible capacity loss.

关键词： Li metal PEO electrolyte Mg-modified interface Li dendrite Cryo-TEM

Hyphae-mediated bioassembly of carbon fibers derivatives for advanced battery energy storage

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Carbon Energy 2024年第6期6卷 140-150页

作者： Lei Huang Zhong Qiu Ping Liu Xinhui Xia Feng Cao Xinping He Chen Wang Wangjun Wan Yongqi zhang Yang Xia wenkui zhang Minghua Chen Jiancang Zhou Department of Critical Care Medicine Sir Run Run Shaw HospitalSchool of MedicineZhejiang UniversityHangzhouChina State Key Laboratory of Silicon Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang ProvinceSchool of Materials Science&EngineeringZhejiang UniversityHangzhouChina College of Materials Science&Engineering Zhejiang University of TechnologyHangzhouChina State Key Laboratory of Photocatalysis on Energy and Environment Fuzhou UniversityFuzhouChina Department of Engineering Technology Huzhou CollegeHuzhouChina Zhejiang Academy of Science and Technology for Inspection&Quarantine HangzhouZhejiangChina Institute of Fundamental and Frontier Science University of Electronic Science and Technology of ChinaChengduChina Key Laboratory of Engineering Dielectric and Applications(Ministry of Education) School of Electrical and Electronic EngineeringHarbin University of Science and TechnologyHarbinChina

Ingenious design and fabrication of advanced carbon-based sulfur cathodes are extremely important to the development of high-energy lithium-sulfur batteries,which hold promise as the next-generation power ***,for the first time,we report a novel versatile hyphae-mediated biological assembly technology to achieve scale production of hyphae carbon fibers(HCFs)derivatives,in which different components including carbon,metal compounds,and semiconductors can be homogeneously assembled with HCFs to form composite *** mechanism of biological adsorption assembly is also *** a representative,reduced graphene oxides(rGOs)decorated with hollow carbon spheres(HCSs)successfully co-assemble with HCFs to form HCSs@rGOs/HCFs hosts for sulfur *** this unique architecture,not only large accommodation space for sulfur but also restrained volume expansion and fast charge transport paths are ***,multiscale physical barriers plus chemisorption sites are simultaneously established to anchor soluble lithium ***,the designed HCSs@rGOs/HCFs-S cathodes deliver a high capacity(1189 mA h g^(-1)at 0.1 C)and good high-rate capability(686 mA h g^(-1)at 5 C).Our work provides a new approach for the preparation of high-performance carbon-based electrodes for energy storage devices.

关键词： bioassembly carbon fibers energy storage graphene lithium-sulfur batteries

Interface issues of lithium metal anode for high-energy batteries: Challenges, strategies, and perspectives

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InfoMat 2021年第2期3卷 155-174页

作者： Yiyao Han Bo Liu Zhen Xiao wenkui zhang Xiuli Wang Guoxiang Pan Yang Xia Xinhui Xia Jiangping Tu College of Materials Science and Engineering Zhejiang University of TechnologyHangzhouChina State Key Laboratory of Silicon Materials Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang ProvinceSchool of Materials Science and EngineeringZhejiang UniversityHangzhouChina Institute of Optoelectronic Materials and Devices China Jiliang UniversityHangzhouChina Department of Materials Chemistry Huzhou UniversityHuzhouChina

Lithium(Li)metal is considered as one of the most promising anode materials for next-generation high-energy-density storage ***,the practical application of Li metal anode is hindered by interfacial instability and air instability due to the highly reactivity of Li *** interface in Li metal batteries(LMBs)directly dictates Li dendrite growth,“dead Li”and low Coulombic efficiency,resulting in inferior electrochemical performance of LMBs and even safety *** addition,its sensitivity to ambient air leads to the severe corrosion of Li metal anode,high requirements of production and storage,and increased manufacturing *** of efforts in recent years have overcome many bottlenecks in these fields and hastened the practical applications of high-energy-density *** this review,we focus on emerging methods of these two aspects to fulfill a stable and low cost *** this perspective,design artificial solid electrolyte interphase(SEI)layers,construct three-dimensional conductive current collectors,optimize electrolytes,employ solid-state electrolytes,and modify separators are summarized to be propitious to ameliorate interfacial ***,ex situ/in situ formed protective layers are highlighted in favor of heightening air ***,several possible directions for the future research on advanced Li metal anode are addressed.

关键词： air stability artificial layer interfacial stability Li metal protection lithium metal anode