Research Status and Application Prospects of LiMnPO₄ as A New Generation Cathode Material for Lithium-ion Batteries

Authors

Lai-fen QIN, Advanced Li-ion Battery Engineering Lab, Ningbo Institute of Materials Technology Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, Zhejing, China;
Yong-gao XIA, Advanced Li-ion Battery Engineering Lab, Ningbo Institute of Materials Technology Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, Zhejing, China;Follow
Li-peng CHEN, Advanced Li-ion Battery Engineering Lab, Ningbo Institute of Materials Technology Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, Zhejing, China;
Hua-sheng HU, Advanced Li-ion Battery Engineering Lab, Ningbo Institute of Materials Technology Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, Zhejing, China;
Feng XIAO, Advanced Li-ion Battery Engineering Lab, Ningbo Institute of Materials Technology Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, Zhejing, China;
Zhao-ping LIU, Advanced Li-ion Battery Engineering Lab, Ningbo Institute of Materials Technology Engineering (NIMTE), Chinese Academy of Sciences, Ningbo 315201, Zhejing, China;Follow

Corresponding Author

Yong-gao XIA(xiayg@nimte.ac.cn);
Zhao-ping LIU(liuzp@nimte.ac.cn)

Abstract

Olivine-structured lithium manganese phosphate (LiMnPO₄) has the following advantages: excellent thermal stability, low cost, high safety and environmental benignity. Importantly, the theoretical energy density of LiMnPO₄ is about 20% higher than that of commercialized LiFePO₄ due to its higher Li⁺ intercalation potential of 4.1 V (vs. Li⁺/Li). Moreover, the high operating voltage of LiMnPO₄ is compatible with present non-aqueous organic electrolytes of lithium-ion batteries. Therefore, LiMnPO₄ is considered as a next generation cathode material for lithium-ion batteries. However, LiMnPO₄ suffers from poor electronic conductivity and low lithium diffusivity, resulting in its low discharge capacity and poor rate capability. And these intrinsic disadvantages hinder LiMnPO4 from its practical applications in lithium-ion batteries. In this paper, recent researches in the modifications including carbon coating, ion doping, nanoization and cyrstalline morphological controlling, full cells, patent situation and commercial progress are reviewed. The prospects of its future development are also predicted. Particularly, the experimental data by Advanced Li-ion Battery Engineering Lab fully proves that LiMnPO₄ has the feasibility of applying in lithium batteries of HEVs or EVs. LiMnPO₄ composite such as LiMnPO₄/ternary cathode materials could be most likely to be realized in the near future.

Graphical Abstract

Keywords

lithium-ion batteries, high-energy density, lithium manganese phosphate, cathode material

DOI Link

https://doi.org/10.13208/j.electrochem.141048

Publication Date

2015-06-28

Online Available Date

2015-06-28

Revised Date

2015-03-17

Received Date

2014-11-18

Recommended Citation

Lai-fen QIN, Yong-gao XIA, Li-peng CHEN, Hua-sheng HU, Feng XIAO, Zhao-ping LIU. Research Status and Application Prospects of LiMnPO₄ as A New Generation Cathode Material for Lithium-ion Batteries[J]. Journal of Electrochemistry, 2015 , 21(3): 253-267.
DOI: 10.13208/j.electrochem.141048
Available at: https://jelectrochem.xmu.edu.cn/journal/vol21/iss3/6