LiPF6/LiBOB blend salt electrolyte for high-power lithium-ion batteries

被引：151

作者：

Chen, ZH ^{[1
]}

Lu, WQ ^{[1
]}

Liu, J ^{[1
]}

Amine, K ^{[1
]}

机构：

[1] Argonne Natl Lab, Div Chem Engn, Argonne, IL 60439 USA

来源：

ELECTROCHIMICA ACTA | 2006年 / 51卷 / 16期

关键词：

lithium-ion battery; high-power; LiBOB; blend salt;

D O I：

10.1016/j.electacta.2005.09.027

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

LiPF6/LiBOB blend salt-based electrolytes were investigated as potential candidates for high-power lithium-ion batteries, especially for transportation applications. It was demonstrated that both the power capability and the cycling performance of the lithium-ion cells could be attenuated by controlling the concentration of LiBOB in blend salt electrolytes. The power capability of the lithium-ion cells decreases with the concentration of LiBOB, while the capacity retention of the cells at 55 C increases with the LiBOB concentration. When electrolytes with no more than 0.1 M LiBOB was used, the MCMB/LiMn1/3Ni1/3Co1/3O2 cells have excellent capacity retention at 55 C, while their impedance meets the requirement set by the FreedomCar Partnership. The similar performance improvement on the MCMB/LiMn2O4 cells was also observed with the blend salt electrolyte. (c) 2005 Elsevier Ltd. All rights reserved.

引用

页码：3322 / 3326

页数：5

共 17 条

[1] Improved lithium manganese oxide spinel/graphite Li-ion cells for high-power applications [J].