Electrolytes: Advanced Electrolytes for Fast‐Charging High‐Voltage Lithium‐Ion Batteries in Wide‐Temperature Range (Adv. Energy Mater. 22/2020)
Xianhui Zhang, Lianfeng Zou, Yaobin Xu, Xia Cao, Mark Engelhard, Bethany E. Matthews, Lirong Zhong, Haiping Wu, Hao Jia, Xiaodi Ren, Peiyuan Gao, Zonghai Chen, Yan Qin, Christopher Kompella, Bruce W. Arey, Jun Li, Deyu Wang, Chongmin Wang, Ji‐Guang Zhang, Wu Xu
Abstract
In article number 2000368, Wu Xu and co-workers report the fabrication of an advanced localized high-concentration electrolyte with a high oxidation potential over 4.9 V. This electrolyte enables formation of ultrathin, uniform, robust and conductive electrode/electrolyte interphases on both graphite anodes and Ni-rich cathodes. Gr||NMC811 cells using this electrolyte in a range of 2.5–4.4 V achieve excellent long-term cycling stability at 25 and 60 °C, fast-charging/discharging rate capabilities, and superior low-temperature discharge performance down to −30 °C.