Chuangchao Sun, Ruhong Li, Suting Weng, Chunnan Zhu, Long Chen, Sen Jiang, Long Li, Xuezhang Xiao, Chengwu Liu, Lixin Chen, Tao Deng, Xuefeng Wang, Xiulin Fan
Lithium batteries employing Li or silicon (Si) anodes hold promise for the next-generation energy storage systems. However, their cycling behavior encounters rapid capacity degradation due to the vulnerability of solid electrolyte interphases (SEIs). Though anion-derived SEIs mitigate this degradation, the unavoidable reduction of solvents introduces heterogeneity to SEIs, leading to fractures during cycling. Here, we elucidate how the reductive stability of solvents, dominated by the electrophilicity (EPT) and coordination ability (CDA), delineates the SEI formed on Li or Si anodes...
March 18, 2024: Angewandte Chemie