锂离子电池正极材料锰酸锂掺杂改性研究

Abstract

Abstract: High purity LiMn₂O₄ and solid solution LiPr_xMn_2-xO₄（x=0.02，0.04，0.06，0.08，0.10）were synthesized by solid-state reaction.Morphologies，structures，and electrochemical properties of the samples were investigated by SEM，XRD，and constant current charge-discharge analysis.Results showed when x=0.06，solid solution LiPr_0.06Mn_1.94O₄ samples exhibited good spinel phase with even crystal size；solid solution LiPr0.06 Mn_1.94O₄ had good high temperature （55 ℃） cycling performance and its discharge capacity retained 82.5% after running for 50 cycles at 55 ℃ and 1C charge and discharge rate.

Key words: LiMn₂O₄, ion doping, lithium ion batteries, cathode materials

CLC Number:

TQ131.11

ZHANG Chun-Li, YE Xue-Hai, ZHANG Xiao-Bo, FU Chun-Ming, YU Xiao-Wei, XIAO Cai-Ying. Modification of cathode material for lithium ion batteries by doping lithium manganate[J]. INORGANICCHEMICALSINDUSTRY, 2012, 44(6): 61-.

[1]	QIAN Zhihui, ZHU Qin, MA Jiao, GUO Yujiao, XIANG Mingwu, GUO Junming. Study on preparation and electrochemical properties of nano-sized LiNi_0.05Mn_1.95O₄ cathode materials [J]. Inorganic Chemicals Industry, 2024, 56(4): 50-56.
[2]	LU Junhao. Study on full element recycling process of retired ternary power lithium battery [J]. Inorganic Chemicals Industry, 2023, 55(6): 92-103.
[3]	PENG Chenxi, LIU Jun. Research progress of layered transition metal oxides cathode materials for sodium-ion batteries [J]. Inorganic Chemicals Industry, 2023, 55(10): 1-12.
[4]	LIU Zhuoqin,ZHOU Xiaochong,MO Liangjun. Study on modification of spinel lithium manganate coated with lithium borate [J]. Inorganic Chemicals Industry, 2022, 54(9): 90-95.
[5]	HOU Shunli,ZHAO Duan,ZHOU Geng,WEI Shishi,LI Jian,WANG Jiatai. Research progress on doping modification of high nickel ternary nickel-cobalt-aluminum cathode material [J]. Inorganic Chemicals Industry, 2022, 54(8): 40-46.
[6]	QIU Zhixu,ZHU Shaokuan,WEI Yuxiao,LONG Jiaying,HUANG Dongchuang,SHAO Jiaojing. Study on preparation and electrochemical performance of S/MCNT/Fe₃O₄ cathode materials [J]. Inorganic Chemicals Industry, 2022, 54(6): 73-77.
[7]	YANG Fengyu,DONG Hua,CHEN Botao. Research progress of reaction mechanism of lithium-rich manganese-based cathode materials [J]. Inorganic Chemicals Industry, 2022, 54(12): 19-27.
[8]	Jian Mengqi,Zhang Kun,Xie Xin,Chen Xiyong. Research progress of LiMnPO₄ cathode material for lithium ion batteries [J]. Inorganic Chemicals Industry, 2021, 53(9): 18-23.
[9]	Zhou Wei,Chen Yanxiao,Guo Xiaodong,Xiang Wei. Study on aluminum-doped lithium-rich manganese-based cathode materials of Li_1.2Ni_0.2Mn_0.6O₂ [J]. Inorganic Chemicals Industry, 2021, 53(6): 128-133.
[10]	Zhang Ting,Lin Sen,Yu Jianguo. Research progress in synthesis and performance enhancement of LiFePO₄ cathode materials [J]. Inorganic Chemicals Industry, 2021, 53(6): 31-40.
[11]	ZHOU Lan,LI Wang,LIAO Wenjun. Research status and analysis of effect of interfacial chemistry on electrochemical properties of LiNi_0.5Mn_1.5O₄ cathode materials [J]. Inorganic Chemicals Industry, 2021, 53(11): 17-24.
[12]	Liu Yang,Cai Zongying,Cao Weigang,Liu Yuzhao. Research progress on lithium sodium titanate for lithium ion batteries [J]. Inorganic Chemicals Industry, 2021, 53(10): 36-40.
[13]	Yan Yajing. Research status and prospect of solid electrolyte for lithium ion batteries [J]. Inorganic Chemicals Industry, 2020, 52(7): 22-25.
[14]	Long Yunfei,Su Jing,Lü Xiaoyan,Wen Yanxuan. Advances in transition metal fluoride phosphate cathode materials for lithium-ion batteries and sodium-ion batteries [J]. Inorganic Chemicals Industry, 2020, 52(3): 28-34.
[15]	Luo Chengguo,Xiao Jun,Fan Guangxin. Current situation and development of precursors for LiMn₂O₄ cathode used in lithium ion batteries [J]. Inorganic Chemicals Industry, 2020, 52(1): 26-29.

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Modification of cathode material for lithium ion batteries by doping lithium manganate

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 0