Open AccessHigh‐Voltage Electrolyte Chemistry for Lithium Batteries
Author(s) -
Guo Kanglong,
Qi Shihan,
Wang Huaping,
Huang Junda,
Wu Mingguang,
Yang Yulu,
Li Xiu,
Ren Yurong,
Ma Jianmin
Publication year - 2022
Publication title -
small science
Language(s) - English
Resource type - Journals
ISSN - 2688-4046
DOI - 10.1002/smsc.202100107
Subject(s) - electrolyte , lithium (medication) , battery (electricity) , voltage , energy storage , energy density , lithium battery , materials science , high voltage , electrical engineering , computer science , chemistry , engineering physics , electrode , engineering , ion , power (physics) , physics , medicine , ionic bonding , quantum mechanics , organic chemistry , endocrinology
Lithium batteries are currently the most popular and promising energy storage system, but the current lithium battery technology can no longer meet people's demand for high energy density devices. Increasing the charge cutoff voltage of a lithium battery can greatly increase its energy density. However, as the voltage increases, a series of unfavorable factors emerges in the system, causing the rapid failure of lithium batteries. To overcome these problems and extend the life of high‐voltage lithium batteries, electrolyte modification strategies have been widely adopted. Under this content, this review first introduces the degradation mechanism of lithium batteries under high cutoff voltage, and then presents an overview of the recent progress in the modification of high‐voltage lithium batteries using electrolyte modification strategies. Finally, the future direction of high‐voltage lithium battery electrolytes is also proposed.