Citation: Xing-Yu WU, Ding-Shan RUAN, Lin-Lin MAO, Mao-Hua FENG, Bin LI. Mn-Doped LiFePO₄ Cathode Material: Solvothermal Preparation and Electrochemical Performance[J]. Chinese Journal of Inorganic Chemistry, ;2021, 37(8): 1399-1406. doi: 10.11862/CJIC.2021.144 shu

Mn-Doped LiFePO₄ Cathode Material: Solvothermal Preparation and Electrochemical Performance

Xing-Yu WU ^{1, 2} ,
Ding-Shan RUAN ^{1, 2,,} ,
Lin-Lin MAO ^{1, 2} ,
Mao-Hua FENG ^{1, 2,,} ,
Bin LI ^{1, 2}

1.
Guangdong Brunp Recycling Technology Co., Ltd., Foshan, Guangdong 528100, China
2.
Guangdong Provincial Key Laboratory of Battery Recycling, Foshan, Guangdong 528100, China

Corresponding author: Ding-Shan RUAN, rds@brunp.com.cn Mao-Hua FENG, fengmaohua@brunp.com.cn
Received Date: 4 March 2021
Revised Date: 28 April 2021

Figures(6)

LiFePO₄ cathode materials with different doping amounts of Mn were synthesized by solvothermal using water and ethylene glycol as solvent. The crystal phase, morphology and electrochemical performance were studied. The results show that Mn has a positive effect in LiFePO₄ cathode material, and the Mn-doping can improve the electrochemical performance of LiFePO₄. On the one hand, a small amount of Mn-doping can broaden the lithium ion diffusion channel and reduce the charge transfer resistance. On the other hand, when the doped amount of Mn was too much, its own poor kinetic properties will cause the charge transfer to be blocked, resulting in battery polarization and serious capacity attenuation.
- cathode material,
- LiFePO₄,
- solvothermal method,
- doping modification
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Mn-Doped LiFePO₄ Cathode Material: Solvothermal Preparation and Electrochemical Performance