Electrolyte-assisted low-voltage decomposition of Li2C2O4 for efficient cathode pre-lithiation in lithium-ion batteries

被引：2

作者：

Xiao, Rang ^{[1
]}

Kang, Cong ^{[1
]}

Ren, Yang ^{[1
]}

Jian, Jiyuan ^{[1
]}

Cui, Binghan ^{[1
]}

Yin, Geping ^{[1
]}

Ma, Yulin ^{[1
]}

Zuo, Pengjian ^{[1
]}

Han, Guokang ^{[1
]}

Du, Chunyu ^{[1
]}

机构：

[1] Harbin Inst Technol, Sch Chem & Chem Engn, MIIT Key Lab Crit Mat Technol New Energy Convers &, Harbin 150001, Peoples R China

来源：

CHEMICAL COMMUNICATIONS | 2023年 / 59卷 / 94期

基金：

中国博士后科学基金;

关键词：

HIGH-CAPACITY; PRELITHIATION; NANOPARTICLES; ANODES;

D O I：

10.1039/d3cc04442d

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Lithium oxalate (Li2C2O4) is an attractive cathode pre-lithiation additive for lithium-ion batteries (LIBs), but its application is hindered by its high decomposition potential (>4.7 V). Due to the liquid-solid synergistic effect of the NaNO2 additive and the LiNi0.83Co0.07Mn0.1O2 (NCM) cathode material, the decomposition efficiency of micro-Li2C2O4 reaches 100% at a low charge cutoff voltage of 4.3 V. Our work boosts the widespread practical application of Li2C2O4 by a simple and promising electrolyte-assisted cathode pre-lithiation strategy.

引用

页码：13982 / 13985

页数：4

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