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Citation: WU Ke, WANG Yin-Ping, WANG Jian, LI Yong-Wei, AN Ping, QI Lu. Electrochemical Performance of Novel Li₄Ti₅O₁₂/LiMn₂O₄ System[J]. Acta Physico-Chimica Sinica, ;2007, 23(0): 5-9. doi: 10.3866/PKU.WHXB2007Supp02 shu

Electrochemical Performance of Novel Li₄Ti₅O₁₂/LiMn₂O₄ System

1.
CITIC Guoan Mengguli New Energy Technology Co. Ltd., Beijing 102200, P. R. China; New Energy Materials and Technology Laboratory, Department of Applied Chemistry, College of Chemical and Molecular Engineering, Peking University, Beijing 100871, P. R. China

Available Online: 4 January 2008

A novel Li4Ti5O12/LiPF6/EC+EMC+DMC (1:1:1 mass ratio)/LiMn2O4 lithium battery of 18650 type was developed and the electrochemical performance of the system was investigated through constant current charge-discharge test and differential chronopotential method, the abuse tolerances of overcharge and overheat were tested as well. The results showed that the cell using this system owns 60 Wh·kg-1 specific energy and 150 Wh·L-1 power density, 95%of initial capacity retained after 100%DOD (depth of discharge)1000 cycles at 1C(1C=1000 mA) rate and more than 250 cycle life at 60 益 which indicates excellent cycle performance in both room and high temperatures. The abuse tests showed that the systemalso had od safety performance.
- Lithium-ion secondary battery; Li4Ti5O12; LiMn2O4
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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

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Electrochemical Performance of Novel Li4Ti5O12/LiMn2O4 System

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通讯作者: 陈斌, bchen63@163.com

Electrochemical Performance of Novel Li₄Ti₅O₁₂/LiMn₂O₄ System