Xu X, Deng S, Wang H, Liu J, Yan H. Research Progress in Improving the Cycling Stability of High-Voltage LiNi
0.5Mn
1.5O
4 Cathode in Lithium-Ion Battery.
NANO-MICRO LETTERS 2017;
9:22. [PMID:
30460318 PMCID:
PMC6223801 DOI:
10.1007/s40820-016-0123-3]
[Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2016] [Accepted: 12/05/2016] [Indexed: 05/08/2023]
Abstract
High-voltage lithium-ion batteries (HVLIBs) are considered as promising devices of energy storage for electric vehicle, hybrid electric vehicle, and other high-power equipment. HVLIBs require their own platform voltages to be higher than 4.5 V on charge. Lithium nickel manganese spinel LiNi0.5Mn1.5O4 (LNMO) cathode is the most promising candidate among the 5 V cathode materials for HVLIBs due to its flat plateau at 4.7 V. However, the degradation of cyclic performance is very serious when LNMO cathode operates over 4.2 V. In this review, we summarize some methods for enhancing the cycling stability of LNMO cathodes in lithium-ion batteries, including doping, cathode surface coating, electrolyte modifying, and other methods. We also discuss the advantages and disadvantages of different methods.
Collapse