Cycling and storage performance at elevated temperatures of LiNi0.5Mn1.5O4 positive electrodes for advanced 5 VLi-ion batteries

被引：126

作者：

Markovsky, B

Talyossef, Y

Salitra, G

Aurbach, D ^{[1
]}

Kim, HJ

Choi, S

机构：

[1] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel

[2] LG Chem, Battery Res & Dev, Taejon 305380, South Korea

来源：

ELECTROCHEMISTRY COMMUNICATIONS | 2004年 / 6卷 / 08期

关键词：

5 V lithium batteries; LiNi0.5Mn1.5O4; electrodes; elevated temperatures; cycling performance;

D O I：

10.1016/j.elecom.2004.06.005

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

The electrochemical behavior of substituted spinel-nickel electrodes, LiNi0.5Mn1.5O4, was studied during prolonged cycling (Li-ion extraction/insertion) and storage at elevated temperatures. We have found that using an appropriate cycling protocol (constant current/constant voltage) of Li/LiNi0.5Mn1.5O4 cells, high charge-discharge capacities of the positive electrodes, around 140 mAh/g, can be obtained. At elevated temperatures, spinel-nickel electrodes demonstrated a stable performance and sufficient capacity retention in electrolyte solutions comprising alkyl carbonates (EC, DMC) and LiPF6. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：821 / 826

页数：6

共 15 条

[11] Solid-state redox potentials for Li[Me1/2Mn3/2]O4 (Me: 3d-transition metal) having spinel-framework structures:: a series of 5 volt materials for advanced lithium-ion batteries [J].