Increasing the cycle life of lithium ion cells by partial state of charge cycling

被引：37

作者：

de Vries, Hans ^{[1
]}

Thanh Trung Nguyen ^{[1
]}

Veld, Bert Op Het ^{[1
]}

机构：

[1] Philips Res, NL-5656 AE Eindhoven, Netherlands

来源：

MICROELECTRONICS RELIABILITY | 2015年 / 55卷 / 11期

关键词：

Charge cycling; Cycle life; Degradation; Depth of discharge; Li-ion cell; Impedance spectroscopy; Partial state of charge; AGING MECHANISMS; BATTERIES;

D O I：

10.1016/j.microrel.2015.08.014

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

In this study, the possibilities to enhance the cycle life of Li-ion cells were explored. Cells were charge-cycled in different ways. Discharging from the fully charged state down to several levels showed that the cycle life is determined by the total amount of transferred charge. Cycling a fixed amount of charge from a partially charged state leads to longer cycle life as the initial state of charge is lower. Impedance spectroscopy showed that the solid electrolyte interface forms the main contribution to the degradation of the cells. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：2247 / 2253

页数：7

共 20 条

[1]

Capacity fade mechanisms and side reactions in lithium-ion batteries [J].