Challenges and promises of lithium metal anode by soluble polysulfides in practical lithium-sulfur batteries

被引：214

作者：

Hou, Li-Peng ^{[1
]}

Zhang, Xue-Qiang ^{[1
]}

Li, Bo-Quan ^{[1
]}

Zhang, Qiang ^{[1
]}

机构：

[1] Tsinghua Univ, Beijing Key Lab Green Chem React Engn & Technol, Dept Chem Engn, Beijing 100084, Peoples R China

来源：

MATERIALS TODAY | 2021年 / 45卷

基金：

中国国家自然科学基金;

关键词：

Anode protection; Lithium-sulfur batteries; Polysulfides; Solid electrolyte interphase; Electrolyte; SOLID-ELECTROLYTE INTERPHASE; HIGH-ENERGY DENSITY; SPARINGLY SOLVATING ELECTROLYTES; PARTIALLY FLUORINATED ETHER; IONIC LIQUID ELECTROLYTE; ELECTROCHEMICAL PERFORMANCE; CATHODE MATERIAL; DENDRITE-FREE; CONVERSION MATERIALS; REDOX REACTIONS;

D O I：

10.1016/j.mattod.2020.10.021

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The lithium-sulfur (Li-S) battery has raised great expectations as a next-generation high-energy density energy storage system. The multielectron dissolution-precipitation redox conversion of S affords a great contribution to its high specific energy. Spontaneously, the highly reactive Li metal anode always confronts soluble Li polysulfides (LiPSs) in a working Li-S battery, and parasitically side reactions occur inevitably. The challenges of the Li metal anode induced by soluble LiPSs emerge as roadblocks for practical Li-S batteries with the development of the S cathode from its infancy into growth stage. Therefore, the fundamental understanding of Li anode in the electrolyte with LiPSs and the targeted protection strategies are urgently required. In this review, the challenges of the Li metal anode in the presence of LiPSs are systematically analyzed. Then, the preliminary advances in Li metal anode protection to deal with LiPSs are summarized. Finally, an insightful outlook is put forward through both a fundamental understanding and a practical exploration of the Li metal anode to promote the development of practical Li-S batteries.

引用

页码：62 / 76

页数：15

共 210 条

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