Mitigating Contact Loss in Li6PS5Cl-Based Solid-State Batteries Using a Thin Cationic Polymer Coating on NCM

Bing-Xuan Shi; Yuriy Yusim; Sudeshna SenThomas DemuthRaffael RuessKerstin VolzAnja Henssand Felix H. Richter

首页> 外文期刊>Advanced energy materials >Mitigating Contact Loss in Li6PS5Cl-Based Solid-State Batteries Using a Thin Cationic Polymer Coating on NCM

【24h】

Mitigating Contact Loss in Li6PS5Cl-Based Solid-State Batteries Using a Thin Cationic Polymer Coating on NCM

机译：Mitigating Contact Loss in Li6PS5Cl-Based Solid-State Batteries Using a Thin Cationic Polymer Coating on NCM

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Thiophosphate-based solid-state batteries (SSBs) with high-nickel ternarycathode materials such as LiNi_(0.83)Co_（0.11）Mn_(0.06)O_2 (NCM) represent apromising next-generation energy storage technology due to their expectedhigh specific discharge capacity and improved safety. However, rapid capacityfading caused by contact loss through interphase and crack formation duringcell cycling is a significant problem hindering stable SSB cycling andhigh-energy-density applications. In this work, a uniform coating ofpoly((4-vinyl benzyl)trimethylammonium bis(trifluoromethanesulfonylimide))(PVBTA-TFSI) on NCM is obtained via a spray-drying process. Thisexceptionally thin cationic polymer coating of only 2–4 nm thickness on NCMhelps stabilize the interface between NCM and the Li6PS5Cl solid electrolyte(SE). Electrochemical tests confirm a significant improvement in long-termcycling performance and active mass utilization compared to uncoated NCM.In addition, the polymer coating effectively suppresses the degradation of theNCM/SE interface, particularly the formation of oxygenated species, andreduces the extent of particle cracking. Overall, these results highlight a newapproach to mitigate SSB degradation using a thin cationic polymer coatingon NCM for SSBs.

著录项

来源
《Advanced energy materials》 |2023年第24期|2300310.1-2300310.13|共13页
作者
Bing-Xuan Shi; Yuriy Yusim; Sudeshna SenThomas DemuthRaffael RuessKerstin VolzAnja Henssand Felix H. Richter;
展开▼
作者单位

Institute of Physical Chemistry & Center for Materials Research (LaMa)Justus Liebig University GiessenHeinrich-Buff-Ring 17, 35392 Giessen, Germany;

Department of Physics & Materials Sciences Center (WZMW)Philipps-University MarburgHans-Meerwein Strasse 6, 35032 Marburg, Germany;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
high-nickel ternary cathode materials; interface degradation; polyelectrolyte; polymer coating; solid electrolytes; solid-state batteries;

Mitigating Contact Loss in Li6PS5Cl-Based Solid-State Batteries Using a Thin Cationic Polymer Coating on NCM

摘要

著录项

相关主题

期刊订阅