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典型文献
Electrolyte and current collector designs for stable lithium metal anodes
文献摘要:
With the increasing demand for high energy-density batteries for portable electronics and large-scale energy storage systems, the lithium metal anode (LMA) has received tremendous attention because of its high theoretical capacity and low redox potential. However, the commercial application of LMAs is impeded by the uncontrolled growth of lithium dendrites. Such dendrite growth may result in internal short circuits, detrimental side reactions, and the formation of dead lithium. Therefore, the growth of lithium metal must be controlled. This article summarizes our recent efforts in inhibiting such dendrite growth, decreasing the detrimental side reactions, and elongating the LMA lifespan by optimizing the electrolyte structure and by designing appropriate current collectors. After identifying that the unstable solid electrolyte inter-face (SEI) film is responsible for the potential dropping in carbonate electrolytes, we developed LiPF6–LiNO3 dual-salt electrolyte and lithium bis(fluorosulfonyl)imide (LiFSI)–carbonate electrolyte to stabilize the SEI film of LMAs. In addition, we achieved controlled lithium depos-ition by designing the structure and material of the current collectors, including selective lithium deposition in porous current collectors, lithio-philic metal guided lithium deposition, and iron carbide induced underpotential lithium deposition in nano-cavities. The limitations of the cur-rent strategies and prospects for future research are also presented.
文献关键词:
作者姓名:
Simeng Zhang;Gaojing Yang;Xiaoyun Li;Yejing Li;Zhaoxiang Wang;Liquan Chen
作者机构:
Key Laboratory for Renewable Energy,Chinese Academy of Sciences,Beijing Key Laboratory for New Energy Materials and Devices,Institute of Physics,Chinese Academy of Sciences,Beijing 100190,China;College of Materials Science and Opto-Electronic Technology,University of Chinese Academy of Sciences,Beijing 100190,China;School of Physical Sciences,University of Chinese Academy of Sciences,Beijing 100190,China
引用格式:
[1]Simeng Zhang;Gaojing Yang;Xiaoyun Li;Yejing Li;Zhaoxiang Wang;Liquan Chen-.Electrolyte and current collector designs for stable lithium metal anodes)[J].矿物冶金与材料学报,2022(05):953-964
A类:
fluorosulfonyl,LiFSI,lithio
B类:
Electrolyte,current,designs,lithium,metal,anodes,With,increasing,demand,high,energy,density,batteries,portable,electronics,large,scale,storage,systems,has,received,tremendous,attention,because,theoretical,capacity,low,redox,However,commercial,application,LMAs,impeded,by,uncontrolled,growth,dendrites,Such,may,result,internal,short,circuits,detrimental,side,reactions,formation,dead,Therefore,must,This,article,summarizes,our,recent,efforts,inhibiting,such,decreasing,elongating,lifespan,optimizing,structure,designing,appropriate,collectors,After,identifying,that,unstable,solid,face,SEI,film,responsible,dropping,carbonate,electrolytes,developed,LiPF6,LiNO3,dual,salt,bis,imide,stabilize,In,addition,achieved,material,including,selective,deposition,porous,philic,guided,iron,carbide,induced,underpotential,nano,cavities,limitations,strategies,prospects,future,research,are,also,presented
AB值:
0.554976
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