锂盐用量对Li1.2Mn0.6Ni0.2O2材料电化学性能的影响

Abstract

Abstract: Manganese enriched cathode material Li1.2Mn0.6Ni0.2O2 was synthesized by high temperature solid state method using Li2CO3 and spheroidal precursor-Mn0.6Ni0.2（OH）1.6 as raw materials.The structures and morphologies of products were characterized by XRD and SEM.Their electrochemical performances were also investigated.Results showed that when the lithium salt dosage was excess of 4%，the synthesized Li1.2Mn0.6Ni0.2O2 presented the most complete crystal structure，the most perfect spherical shape and showed excellent electrochemical performance.The initial discharge capacity reached 250.7 mA·h/g and 235.2 mA·h/g at the rates of 0.2 C and 1.0 C，respectively.The capacity retention at 1.0 C was 86.86% after 50 charge/discharge cycles.

Key words: lithium ion battery, cathode materials, Li1.2Mn0.6Ni0.2O2 , electrochemical performance

CLC Number:

TQ131.11

HE Ai-Zhen, YE Xue-Hai, ZHI Xiao-Ke, LIU Chao, ZHAO Zhen, WANG Xu-Yang, ZHANG Su, SHI Jie. Influence of lithium content on electrochemical properties of Li1.2Mn0.6Ni0.2O2 material[J]. INORGANICCHEMICALSINDUSTRY, 2015, 47(4): 68-.

[1]	Fan Qingke,Meng Qinghua,Luo Fengyu. Study on preparation and properties of cathode materials for vehicle lithium battery [J]. Inorganic Chemicals Industry, 2021, 53(1): 44-49.
[2]	Wang Kuangbin,Xu Shengxia,Wang Yongqin. Research on purification process of lithium difluorosulfimide optimized by response surface method [J]. Inorganic Chemicals Industry, 2020, 52(9): 62-65.
[3]	Wang Jiatai,Zhao Duan,Ma Lianhua,Zhang Caihong. Research progress of LiFePO₄ cathode materials for Li-ion battery [J]. Inorganic Chemicals Industry, 2020, 52(4): 18-22.
[4]	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.
[5]	Li Tong,Shi Yunbin,Liu Qingbin,He Shuang. Structure and electrochemical properties of cathode materials for new energy automotive lithium batteries doped and modified by Se [J]. Inorganic Chemicals Industry, 2020, 52(2): 17-22.
[6]	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.
[7]	Sun Peiliang,Chen Shijuan,Yuan Li. Preparation and electrochemical properties of lithium difluorophosphate [J]. Inorganic Chemicals Industry, 2019, 51(5): 45-48.
[8]	LIANG Da-Yu. Effect of PVDF binder content on rheological properties of cathode slurry for lithium ion batteries [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(8): 77-.
[9]	BIAN Du-Cheng, LIU Shu-Lin, TIAN Yuan. Reusing of spent LiFePO4 cathode materials by solid phase lithium refilling method and electrochemical performance there of [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(2): 71-.
[10]	YANG Jian-Wen, YOU Hai-Ping, DENG Xing-Shen, PAN Xiao-Jin, YANG Gui-Jun, ZHANG Ling-Zhi. Preparation and electrochemical performances of chiral porous sodium zinc phosphate as anode material [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(2): 75-.
[11]	GU He-Yun, LI Sheng, LI 二Rui, WANG Kai, XU Jiang-Sheng. Synthesis and electrochemical performance of magnesium ion doped lithium iron phosphate [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(1): 64-.
[12]	CHENG He, Guo- Bing. Controllable synthesis of TiO₂ core-shell nanostructure and lithium storage performance thereof [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(1): 68-.
[13]	SANG Jun-Li, ZHAO Qing-Yun, LIU Da-Fan. Preparation and characterization of LiBF4 electrolyte of lithium ion batteries [J]. INORGANICCHEMICALSINDUSTRY, 2015, 47(7): 75-.
[14]	ZHOU Qiao, LI Xue-Liang, YOU Ya-Hua, WANG Hong-Liu, XIAO Zheng-Hui. Ionothermal synthesis and properties of Cr-doped LiMn2O4 cathode materials [J]. INORGANICCHEMICALSINDUSTRY, 2015, 47(4): 62-.
[15]	ZHANG Yan-Jiang, WU Xing-Bing, ZANG Qiang, JIANG Yu-Heng. Effect of electrolyte-soaking on performance of LiNi1/3Co1/3Mn1/3O2 cathode material for lithium ion batteries [J]. INORGANICCHEMICALSINDUSTRY, 2015, 47(2): 63-.

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Influence of lithium content on electrochemical properties of Li1.2Mn0.6Ni0.2O2 material

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 10