首页|Electrochemical deposition of Li2S2/Li2S in aprotic Li-S batteries

Electrochemical deposition of Li2S2/Li2S in aprotic Li-S batteries

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Lithium-sulfur(Li-S)batteries stand out the energy storage systems because of extremely high energy density(2600 W h Kg-1)and low-cost sulfur cathode.Unfortunately,the sluggish deposition from liquid Li polysulfides(LiPSs)to solid Li2S leads to mild power density and short cycle life.Understanding and regulating Li2S2/Li2S deposition are conceived to be importance to deliver second-plateau capacity in acceptable kinetics,which has the potential to operation Li-S batteries under electrolyte-lean conditions.This perspective aims to summarize the proposed models that can describe the nucleation and propa-gation of three-dimensional Li2S2/Li2S,as well as affords critical views how electrolyte dictates LiPS conversion from liquid to solid.It hopes to encourage necessary scaffold strategies and electrolyte for-mulations to further improve energy density and life span of Li-S batteries.

Lithium-sulfur batteriesElectrolyteLi2S precipitationCharacterization

Zhifeng Yao、Xiaozhong Fan、Long Kong

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School of Civil Engineering,Xi'an University of Architecture & Technology,Xi'an 710055,China

Institute of Flexible Electronics(IFE),Northwestern Polytechnical University,Xi'an 710129,China

National Natural Science Foundation of ChinaShenzhen Foundation Research FundFundamental Research Funds of Shaanxi Key Laboratory of Artificially Structured Functional Materials and DevicesFundamental Research Funds for the Central UniversitiesOpen Project of State Key Laboratory of Environmentfriendly Energy Materials

22379121JCYJ20220530112812028AFMD-KFJJ-22204G2022KY060622kfhg05

2024

10.1016/j.partic.2024.01.011

颗粒学报(英文版)
中国颗粒学会　中国科学院过程工程研究所

颗粒学报(英文版)

CSTPCD
影响因子：0.632
ISSN：1674-2001
年,卷(期)：2024.90(7)
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