电源技术2026，Vol.50Issue(5)：830-837,8.DOI:10.3969/j.issn.1002-087X.2026.05.007
高电压LiNi0.5Mn1.5O4基全电池电解液的优化及探究
Optimization and exploration of electrolyte for high-voltage LiNi0.5Mn1.5O4-based full-cell
周双 1邱玉胜 1王红强 2李庆余2
作者信息
- 1. 益佳通新能源股份有限公司,安徽 宣城 242000
- 2. 广西师范大学化学与药学学院广西低碳能源材料重点实验室,广西 桂林 541004
- 折叠
摘要
Abstract
Lithium-ion batteries are widely used in portable electronic products and new energy vehicles due to their excellent energy and power characteristics.With the increasing scarcity of fossil fuels and the intensification of environmental problems,its application scope has gradually expanded to the field of new energy vehicles.In order to meet the needs of high energy density and high power output,the con-struction of high-voltage battery systems has become a research hotspot.Among them,LiNi0.5Mn1.5O4(LNMO)cathodes have attracted much attention due to their high-voltage platform,high theoretical spe-cific capacity and energy density.However,LNMO batteries matched with graphite anodes have not yet been industrialized,mainly due to the mismatch of electrolyte systems.The performance changes of 1%,3%and 5%succinic anhydride(SA)were investigated in the electrolyte,focusing on the capacity attenua-tion and side reactions of LNMO full cells.The results show that the battery with 3%SA(cathode:3%LNMO@LSMO;Anode:5%TEOS-NG,LNMO/NG-3%SA)perform best.This is attributed to the decomposition of SA during charging and discharging to form a stable interface film,which can inhibit electrolyte decomposition,reduce side reactions,and stabilize the electrode structure,thereby signifi-cantly improving capacity retention and cycle stability.关键词
锂离子电池/全电池/LiNi0.5Mn1.5O4正极材料/电解液Key words
lithium ion battery/full cell/LiNi0.5Mn1.5O4 cathode/electrolyte分类
信息技术与安全科学引用本文复制引用
周双,邱玉胜,王红强,李庆余..高电压LiNi0.5Mn1.5O4基全电池电解液的优化及探究[J].电源技术,2026,50(5):830-837,8.
