Sulfur-Rich Additive-Induced Interphases Enable Highly Stable 4.6 V LiNi0.5Co0.2Mn0.3O2||graphite Pouch Cells

被引：40

作者：

Fan, Ziqiang ^{[1
,2
,3
]}

Zhou, Xunzhu ^{[1
,4
]}

Qiu, Jingwei ^{[2
,3
]}

Yang, Zhuo ^{[1
,4
]}

Lei, Chenxi ^{[2
,3
]}

Hao, Zhiqiang ^{[1
,4
]}

Li, Jianhui ^{[2
,3
,5
]}

Li, Lin ^{[1
,4
]}

Zeng, Ronghua ^{[2
,3
]}

Chou, Shu-Lei ^{[1
,4
]}

机构：

[1] Wenzhou Univ, Dept Inst Carbon Neutralizat, Coll Chem & Mat Engn, Wenzhou 325035, Zhejiang, Peoples R China

[2] South China Normal Univ, Engn Res Ctr MTEES, Minist Educ,Sch Chem, Dept Natl & Local Joint Engn, Guangzhou 510006, Guangdong, Peoples R China

[3] South China Normal Univ, Sch Chem, Key Lab ETESPG GHEI, Guangzhou 510006, Guangdong, Peoples R China

[4] Wenzhou Univ Technol Innovat, Inst Carbon Neutralizat, Wenzhou Key Lab Sodium Ion Batteries, Wenzhou 325035, Zhejiang, Peoples R China

[5] South China Normal Univ, Sch Mat & New Energy, Shanwei 516600, Guangdong, Peoples R China

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2023年 / 62卷 / 39期

基金：

中国国家自然科学基金;

关键词：

Electrode-Electrolyte Interface; High Energy Density; High-Voltage; Lithium-Ion Batteries; Sulfur-Rich Additive; HIGH-VOLTAGE PERFORMANCE; METHYLENE METHANEDISULFONATE; LICOO2/GRAPHITE BATTERIES; ELECTROLYTE ADDITIVES; FUNCTIONAL ADDITIVES; PROPYLENE CARBONATE; LITHIUM; OXIDE; SULTONE; IMPACT;

D O I：

10.1002/anie.202308888

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

High-voltage lithium-ion batteries (LIBs) have attracted great attention due to their promising high energy density. However, severe capacity degradation is witnessed, which originated from the incompatible and unstable electrolyte-electrode interphase at high voltage. Herein, a robust additive-induced sulfur-rich interphase is constructed by introducing an additive with ultrahigh S-content (34.04 %, methylene methyl disulfonate, MMDS) in 4.6 V LiNi0.5Co0.2Mn0.3O2 (NCM523)||graphite pouch cell. The MMDS does not directly participate the inner Li+ sheath, but the strong interactions between MMDS and PF6- anions promote the preferential decomposition of MMDS and broaden the oxidation stability, facilitating the formation of an ultrathin but robust sulfur-rich interfacial layer. The electrolyte consumption, gas production, phase transformation and dissolution of transition metal ions were effectively inhibited. As expected, the 4.6 V NCM523||graphite pouch cell delivers a high capacity retention of 87.99 % even after 800 cycles. This work shares new insight into the sulfur-rich additive-induced electrolyte-electrode interphase for stable high-voltage LIBs.

引用

页数：9