학술논문

Enhanced cycling performance and high energy density of LiFePO4 based lithium ion batteries
Document Type
Article
Source
Materials Letters. Oct2007, Vol. 61 Issue 25, p4700-4702. 3p.
Subject
*LITHIUM
*NATIVE element minerals
*NATURAL gas vehicles
*ELECTRIC vehicles
Language
ISSN
0167-577X
Abstract
Abstract: LiFePO4 attracts a lot of attention as cathode materials for the next generation of lithium ion batteries. However, LiFePO4 has a poor rate capability attributed to low electronic conductivity and low density. There is seldom data reported on lithium ion batteries with LiFePO4 as cathode and graphite as anode. According to our experimental results, the capacity fading on cycling is surprisingly negligible at 1664 cycles for the cell type 042040. It delivers a capacity of 1170 mAh for 18650 cell type at 4.5C discharge rate. It is confirmed that lithium ion batteries with LiFePO4 as cathode are suitable for electric vehicle application. [Copyright &y& Elsevier]