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]	SONG Jiaxi, JI Renfei, CHEN Jun, LIN Sen, YU Jianguo. Research on characteristics analysis and pretreatment on deeply deactivated power battery ternary cathode materials [J]. Inorganic Chemicals Industry, 2025, 57(2): 44-49.
[2]	CHEN Xue, OUYANG Quansheng, SHAO Jiaojing. Recent research progress of lithium-sulfur batteries based on solid-solid reaction mechanism [J]. Inorganic Chemicals Industry, 2024, 56(9): 12-23.
[3]	SU Baocai, ZHANG Qin, XIE Yuanjian, CAI Pingxiong, PAN Yuanfeng. Advances in synthesis methods and structural modification of LiMnFePO₄ materials [J]. Inorganic Chemicals Industry, 2024, 56(7): 28-36.
[4]	GE Jianhua, XIE Minyan, OUYANG Quansheng, SHAO Jiaojing. Advances in regeneration processes of cathode materials for spent power batteries [J]. Inorganic Chemicals Industry, 2024, 56(12): 79-87.
[5]	ZHAO Runze, QIAN A′niu. Research progress of lithium recovery for spent lithium-ion batteries and preparation in battery-grade lithium carbonate [J]. Inorganic Chemicals Industry, 2024, 56(12): 70-78.
[6]	HU Wenjuan, SHEN Xiaozhong, WANG Rujia, LU Lu, ZOU Lianli. Effect of annealing temperature on phase structure and electrochemical performance of hydrogen storage alloys for automotive batteries [J]. Inorganic Chemicals Industry, 2024, 56(11): 51-58.
[7]	LIU Jiasheng, LUO Xiaoqiang, HOU Cuihong, XUE Lingwei. Effects of fluorine doping on electrochemical behavior of LiMn_0.8Fe_0.2PO₄/C cathode materials [J]. Inorganic Chemicals Industry, 2024, 56(11): 45-50.
[8]	WAN Feng, YAN Yingchun, FAN Zhuangjun. Research progress and prospect of halide solid electrolytes [J]. Inorganic Chemicals Industry, 2024, 56(11): 15-29.
[9]	LIU Juan, JIANG Qinglai, ZHANG Yueyi. Study on Al-Zn co-doping of 4.6 V high voltage lithium cobalt oxide cathode materials [J]. Inorganic Chemicals Industry, 2024, 56(11): 59-64.
[10]	MA Lianren, XIE Hongyan. Study on preparation of LiMn_0.7Fe_0.3PO₄/C cathode materials by two-step solid-phase method with surfactant [J]. Inorganic Chemicals Industry, 2024, 56(11): 39-44.
[11]	PENG Weifeng, SHI Wei. Effect of Co replacing Ni on electrochemical performance of La_0.8Mg_0.2Ni_3.8-_x Co _x hydrogen storage alloy for automotive batteries [J]. Inorganic Chemicals Industry, 2024, 56(11): 65-71.
[12]	CHEN Tiandong, ZHAO Guangzhao, HAI Chunxi, DONG Shengde, HE Xin, XU Qi, FENG Hang, YUAN Shaoxiong, MA Luxiang, ZHOU Yuan. Research and industrialization progress on coating and doping modification of lithium-rich manganese-based materials [J]. Inorganic Chemicals Industry, 2023, 55(9): 1-8.
[13]	YU Hui, WANG Yubin, LIAO Zhejun, YANG Yunguang. Overview of recycling and utilization process of waste ternary lithium-ion power batteries [J]. Inorganic Chemicals Industry, 2023, 55(7): 32-37.
[14]	LU Junhao. Study on full element recycling process of retired ternary power lithium battery [J]. Inorganic Chemicals Industry, 2023, 55(6): 92-103.
[15]	ZHU Zhihong, ZHU Yongfang. Study on preparation and properties of silicon doped lithium manganate by self-propagating combustion [J]. Inorganic Chemicals Industry, 2023, 55(5): 66-70.

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 0