2026-04-07 中国科学院（CAS）
＜関連情報＞
- https://english.cas.cn/newsroom/cas-in-media/202604/t20260407_1155357.shtml
- https://www.nature.com/articles/s41560-026-02032-7
重合可能な不燃性電解質を用いた、熱暴走のないアンペア時レベルのナトリウムイオン電池 Thermal runaway-free ampere-hour-level Na-ion battery via polymerizable non-flammable electrolyte
Jiao Zhang,Lin Zhou,Haibo Wang,Suting Weng,Shuai Han,Yang Yang,Yuan Liu,Zhao Chen,Xubin Wang,Feixiang Ding,Fei Xie,Huican Mao,Xuefeng Wang,Yaxiang Lu,Liquan Chen & Yong-Sheng Hu
Nature Energy Published:06 April 2026
DOI:https://doi.org/10.1038/s41560-026-02032-7
Abstract
Safety is the most basic requirement for the application of rechargeable batteries in large-scale energy storage. Despite extensive efforts in developing non-flammable electrolytes, the elimination of thermal runaway in ampere-hour-level cells remains unachieved, while the correlation between electrolyte flame retardancy and battery safety is still unclear. Here we propose a polymerizable and non-flammable electrolyte, which leverages the synergistic anion–cation solvation effect and undergoes thermally triggered polymerization. The optimized electrode–electrolyte interfacial and a cross-linked barrier were obtained to prevent mechanical/chemical interactions between the electrodes and impede the side reactions/reductive gases generation, leading to no thermal runaway in ampere-hour-level cells. The nail-penetration tests were also passed without smoke, fire or explosion. This work brings an insight of the battery safety beyond non-flammable electrolyte design and paves the way towards safer and more efficient battery systems for energy storage.
