Tri-functional coating to enhance the capacity retention of LiNi0.5Mn1.5O4 for high power lithium ion battery

Authors

Jun Liu, Guangdong University of Technology
Yifeng Cheng, Guangdong University of Technology
Qinglu Fan, Guangdong University of Technology
Lingyu Zhang, Guangdong University of Technology
Liying Liu, Guangdong University of Technology
Xi Ke, Guangdong University of Technology
Naiguang Wang, Guangdong University of Technology
Zhicong Shi, Guangdong University of Technology
Zaiping Guo, University of WollongongFollow

RIS ID

118001

Publication Details

Liu, J., Cheng, Y., Fan, Q., Zhang, L., Liu, L., Ke, X., Wang, N., Shi, Z. & Guo, Z. (2018). Tri-functional coating to enhance the capacity retention of LiNi0.5Mn1.5O4 for high power lithium ion battery. Materials Letters, 214 68-71.

Abstract

LiNi_0.5Mn_1.5O₄ is a promising cathode material for high power lithium ion batteries (LIBs) for electric vehicles (EVs) and hybrid electric vehicles (HEVs). For the first time we design a tri-functional coating to improve the cycling performance of LiNi_0.5Mn_1.5O₄. With the designed BiPO₄ coating, the capacity retentions of LiNi_0.5Mn_1.5O₄ are largely improved from 84.3% to 93.6% at 0.5 C after 50 cycles and from 80.6% to 96.2% at 10 C after 100 cycles. The tri-functional coating reduces the charge transfer resistance of LiNi_0.5Mn_1.5O₄ cathode and plays a critical role in enhancing the electrochemical performance and lifetime. This strategy provides a new way to modify electrode materials to elevate the performance of LIBs.