摘要
The electrolytes of Li-ion batteries consist mainly of a LiPF6 salt dissolved in a carbonate-based solvent mixture.Such electrolytes cannot support fast charge without detrimental impacts on performance and lifetime.Fast charge aggravates parasitic reactions of the electrolyte solvents and structural degradation of the lithium layered transition metal oxide cathode materials.This leads to not only the depletion of electrolyte solvents but also the loss of cyclable Li+ions,accompanied by impedance growth and volumetric swelling of the battery.In this perspective,the design aspects of the electrolytes for fast charge of Li-ion batteries are discussed and proposed.
出处
《InfoMat》
SCIE
CAS
2021年第1期125-130,共6页
信息材料（英文）
基金
Army Research Laboratory,Grant/Award Number:N/A。
作者简介
Correspondence:Dr.Sheng S.Zhang(Shengshui Zhang)is a senior research chemist in the U.S.Army Combat Capabilities Development Command(CCDC)Army Research Laboratory(ARL).He has over 30 years of experiences in fundamental and applied researches on many electrochemical energy storage devices,including Li metal batteries,Li-air batteries,Li-ion batteries,supercapacitors,and Li-ion capacitors.His current research interests are in both new and existing materials for electrochemical energy storage and their implementation in batteries for Army applications.As an active researcher,he has been recognized by his single-and first-authored publications with a total of 18000+citations and an h-index of 67.Email:shengshui.zhang.civ@mail.mil,shengshui@gmail.com。
