电池设计对LiFePO_4/Li_4Ti_5O_(12)体系的影响  

Performance of LiFePO_4/Li_4Ti_5O_(12) batteries with different Designs

作　　者：张艳霞 王玲利 王双双 王晨旭 谢佳 

机构地区：[1]国轩高科动力能源有限公司,安徽合肥230011

出　　处：《电池工业》2012年第6期338-340,共3页Chinese Battery Industry

摘　　要：以LiFePO4(LFP)为正极、Li4Ti5O12(LTO)为负极制备了1165140型锂离子电池,并研究了不同电池设计(负极过量、正极过量以及正负极容量接近于1)对电池容量发挥的影响。结果表明,N/P接近于1时,正、负极材料容量发挥以及充放电效率最高,电池能量密度能够达到56Wh/kg。Abstract： 1165140 type Li-ion battery was prepared negative active material, respectively. The capacity with LiFePO4 and Li4Ti5 O12 as positive and of the batteries with different designs （posi- tive-electrode-limited, negative-electrode-limited, and positive/negative capacity ratio of ≈ 1） was investigated. The result showed that the capacity and discharge/charge efficiency of active materials were the best when the N/P ratio was close to 1, and the energy density could reach to 56 Wh/kg.

关 键 词：LIFEPO4 Li4Ti5O12电池 电池设计 能量密度 

分 类 号：TM912.9[电气工程—电力电子与电力传动]