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Modification of Li1.167Ni0.167Co0.167Mn0.5O2 Cathode Materials by AlPO4 Coating for Enhanced Cycling Performance of Lithium Ion Batteries
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Tongzhen WANG, Jun CAO, Zeheng YANG, Weixin ZHANG
Journal of the Chinese Ceramic Society | 2020, 48(10) : 1512 - 1520
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Journal of the Chinese Ceramic Society | 2020, 48(10): 1512-1520
Modification of Li1.167Ni0.167Co0.167Mn0.5O2 Cathode Materials by AlPO4 Coating for Enhanced Cycling Performance of Lithium Ion Batteries
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Tongzhen WANG, Jun CAO, Zeheng YANG, Weixin ZHANG
Affiliations
  • School of Chemistry and Chemical Engineering, Hefei University of Technology, Anhui Key Laboratory of Controllable Chemistry and Material Chemical Engineering, Hefei 230009, China

    • WANG Tongzhen (1994-), male, Master candidate. E-mail:

About Author:

WANG Tongzhen (1994-), male, Master candidate. E-mail:

Published: 2020-10-20 doi: 10.14062/j.issn.0454-5648.20200202
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A Li1.167Ni0.167Co0.167Mn0.5O2 cathode material was synthesized by a co-precipitation method, and then a composite material with a uniform AlPO4 coating on its particle surfaces was prepared by a pH-controlled chemical deposition process with Al(NO3)3·6H2O, K2HPO4 and hexamethylenetetramine as reagents and citric acid-sodium citrate as a buffer solution. The effect of AlPO4 coating amount on the electrochemical performance of Li1.167Ni0.167Co0.167Mn0.5O2 cathode materials was investigated. The results show that 1% (in mass fraction) AlPO4 coated material exhibits a high initial discharge capacity (i.e., 265.9 mA·h/g at 0.1 C) and an excellent capacity retention (i.e., 88% retention rate after 150 cycles at 0.5 C). The superior electrochemical performance can be attributed to the AlPO4 coating preventing a direct contact between the electrolyte and the electrode material, accelerating the lithium ion diffusion and reducing the electrochemical resistance. As a result, Li+ diffusion rate increases from 3.17×10-15 cm2/s to 9.07×10-15 cm2/s, and the electrochemical impedance value decreases from 152.92 Ω to 62.27 Ω.

lithium-ion battery  /  co-precipitation  /  lithium-rich cathode materials  /  coating  /  aluminum phosphate
王同振, 曹骏, 杨则恒, 张卫新. AlPO4包覆改性Li1.167Ni0.167Co0.167Mn0.5O2锂离子电池正极材料及循环性能调控. 硅酸盐学报, 2020 , 48 (10) : 1512 -1520 . DOI: 10.14062/j.issn.0454-5648.20200202
Tongzhen WANG, Jun CAO, Zeheng YANG, Weixin ZHANG. Modification of Li1.167Ni0.167Co0.167Mn0.5O2 Cathode Materials by AlPO4 Coating for Enhanced Cycling Performance of Lithium Ion Batteries[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (10) : 1512 -1520 . DOI: 10.14062/j.issn.0454-5648.20200202
Appendix
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Year 2020 volume 48 Issue 10
32
9
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Article Info
doi: 10.14062/j.issn.0454-5648.20200202
  • Receive Date：2020-03-30
  • Online Date：2026-10-29
  • Published：2020-10-20
Article Data
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History
  • Received：2020-03-30
  • Revised：2020-05-14
Funding
Affiliations
    School of Chemistry and Chemical Engineering, Hefei University of Technology, Anhui Key Laboratory of Controllable Chemistry and Material Chemical Engineering, Hefei 230009, China

Corresponding:

ZHANG Weixin (1969-), female, Ph.D., Professor. E-mail:
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表12种不同金属材料的力学参数
科
Family		 属数
Number of
genus		 种数
Number of
species		 占总种数比例
Percentage of
total species (%)		 属
Genus		 种数
Number of
species		 占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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