Cycle Life of Commercial Lithium-Ion Batteries with Lithium Titanium Oxide Anodes in Electric Vehicles

被引：119

作者：

Han, Xuebing ^{[1
]}

Ouyang, Minggao ^{[1
]}

Lu, Languang ^{[1
]}

Li, Jianqiu ^{[1
]}

机构：

[1] Tsinghua Univ, Dept Automot Engn, State Key Lab Automot Safety & Energy, Beijing 100084, Peoples R China

来源：

ENERGIES | 2014年 / 7卷 / 08期

关键词：

lithium ion battery; capacity fade; incremental capacity (IC); lithium titanium oxide (LTO); electric vehicle (EV); COMPOSITE POSITIVE ELECTRODE; DEGRADATION; PREDICTION; CELLS; CALENDAR; MECHANISMS; LI4TI5O12; STATE;

D O I：

10.3390/en7084895

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

080707 [能源环境工程]; 082001 [油气井工程];

摘要：

The lithium titanium oxide (LTO) anode is widely accepted as one of the best anodes for the future lithium ion batteries in electric vehicles (EVs), especially since its cycle life is very long. In this paper, three different commercial LTO cells from different manufacturers were studied in accelerated cycle life tests and their capacity fades were compared. The result indicates that under 55 degrees C, the LTO battery still shows a high capacity fade rate. The battery aging processes of all the commercial LTO cells clearly include two stages. Using the incremental capacity (IC) analysis, it could be judged that in the first stage, the battery capacity decreases mainly due to the loss of anode material and the degradation rate is lower. In the second stage, the battery capacity decreases much faster, mainly due to the degradation of the cathode material. The result is important for the state of health (SOH) estimation and remaining useful life (RUL) prediction of battery management system (BMS) for LTO batteries in EVs.

引用

页码：4895 / 4909

页数：15

共 26 条

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