Charging processes in lithium-oxygen batteries unraveled through the lens of the distribution of relaxation times

被引：163

作者：

Chen, Juan ^{[1
]}

Quattrocchi, Emanuele ^{[2
]}

Ciucci, Francesco ^{[2
,3
,4
]}

Chen, Yuhui ^{[1
]}

机构：

[1] Nanjing Tech Univ, Coll Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 211816, Jiangsu, Peoples R China

[2] Hong Kong Univ Sci & Technol, Dept Mech & Aerosp Engn, Hong Kong, Peoples R China

[3] Univ Bayreuth, Chair Electrode Design Electrochem Energy Storage, Bayreuth, Bavaria, Germany

[4] Bavarian Ctr Battery Technol BayBatt, Bayreuth, Bavaria, Germany

来源：

CHEM | 2023年 / 9卷 / 08期

基金：

中国国家自然科学基金;

关键词：

ION; REDUCTION; ELECTRODE; SOLVENTS;

D O I：

10.1016/j.chempr.2023.04.022

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Large overpotential is one of the biggest challenges of Li-O2 batteries, and it is contributed by multiple factors, i.e., surface passivation, sluggish kinetics, poor mass transport, etc. For a better catalyst design, we need to identify the major origin of the overpotential during charging. Herein, we applied the advanced EIS method and decoupled those factors. The slow kinetics of Li2O2 oxidation leads to large overpotential at the initial/final stage of charging, whereas the overpotential

引用

收藏

页码：2267 / 2281

页数：16

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