电解质
锂(药物)
离子电导率
聚合物
材料科学
化学工程
热失控
电池(电)
离子
热稳定性
相间
侧链
盐(化学)
化学
电极
有机化学
复合材料
医学
功率(物理)
物理
物理化学
量子力学
生物
工程类
遗传学
内分泌学
作者
Jihong Jeong,M.C. Kim,Hyeju Shin,Hosik Lee,Yoon-Gyo Cho,Minjae Cho,Jisu Lee,Chau‐Chung Han,Gunyoung Kim,Hongkyung Lee,Hochun Lee,Tae‐Hee Kim,Seo‐Hyun Jung,Hyun‐Kon Song
出处
期刊:ACS energy letters
[American Chemical Society]
日期:2023-10-13
卷期号:8 (11): 4650-4657
被引量:8
标识
DOI:10.1021/acsenergylett.3c01128
摘要
Herein, we present a gel polymer electrolyte (GPE) improving nonflammability of lithium-ion batteries (LIBs) by blocking radical-initiated chain reactions which cause thermal runaway and finally fire issues. The polymer that makes up the nonflammable GPE was (1) soluble in carbonate electrolytes, (2) cross-linkable in the presence of a popularly used lithium salt such as LiPF6, (3) gelated only with 2 wt % in electrolytes, and (4) radical-scavenging by its functional side chains. Electrolytes having the polymer were thermally gelated within battery cells after the cells were assembled by a conventional way. LIB cells with the GPE were durable against external thermal and mechanical shocks without sacrificing cell performances. The high transference number of lithium ions and liquid-equivalent ionic conductivity of the GPE at only 2% solid content having a stable solid-electrolyte interphase layer formed even improved cell performances at normal operation conditions.
科研通智能强力驱动
Strongly Powered by AbleSci AI