Title

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

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

LiNi0.5Mn1.5O4 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 LiNi0.5Mn1.5O4. With the designed BiPO4 coating, the capacity retentions of LiNi0.5Mn1.5O4 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 LiNi0.5Mn1.5O4 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.

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Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.matlet.2017.11.046