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Preparation of Li-rich manganese-based 0.5Li2MnO3·0.5LiCo0.5Mn0.5O2 Cathode Materials by Co-precipitation Method for Lithium Ion Batteries
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Wenming LI, Maoqin QIU, Zeheng YANG, Weixin ZHANG
Journal of the Chinese Ceramic Society | 2020, 48(2) : 174 - 181
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Journal of the Chinese Ceramic Society | 2020, 48(2): 174-181
Preparation of Li-rich manganese-based 0.5Li2MnO3·0.5LiCo0.5Mn0.5O2 Cathode Materials by Co-precipitation Method for Lithium Ion Batteries
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Wenming LI, Maoqin QIU, Zeheng YANG, Weixin ZHANG
Affiliations
  • School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China

    • LI Wenming (1986-), male, Doctoral candidate. E-mail:

About Author:

LI Wenming (1986-), male, Doctoral candidate. E-mail:

Published: 2020-02-20 doi: 10.14062/j.issn.0454-5648.20190330
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Li-rich manganese-based 0.5Li2MnO3·0.5LiCo0.5Mn0.5O2 cathode materials for lithium ion battery were prepared by a co-precipitation method and subsequnet lithium mixing and calcination. The phase composition, morphology and structure, valance state, particle size distribution and tap density of the prepared samples were characterized by X-ray diffraction, field emission scanning electron microscopy, transmission electron microscopy, X-ray photoelectron spectroscopy, laser particle size analysis and tap density measurement. The electrochemical performance of the samples was analyzed by means of charge and discharge tester. The results show that the sample prepared by co-precipitation at a low stirring speeds has a solid spherical morphology, which is assembly of massiverod-like primary particles. The sample prepared at high stirring speeds has a morphology of dispersed microrods. The as-prepared solid sphere sample exhibits a greater tap density of 1.7 g/cm3 and better electrochemical performances (i.e., discharge capacity of 233.8 mA·h/g at 0.2 C rate, 2 C/0.2 C specific discharge capacity ratio of 62.2% and capacity retention up to 90.8% at 0.5 C rate after 100 cycles), compared to the dispersed microrod sample.

co-precipitation  /  lithium cobalt manganese oxide  /  lithium-rich manganese-based  /  cathode material  /  lithium ion battery
李文明, 邱茂琴, 杨则恒, 张卫新. 共沉淀法制备锂离子电池0.5Li2MnO3·0.5LiCo0.5Mn0.5O2富锂锰基正极材料. 硅酸盐学报, 2020 , 48 (2) : 174 -181 . DOI: 10.14062/j.issn.0454-5648.20190330
Wenming LI, Maoqin QIU, Zeheng YANG, Weixin ZHANG. Preparation of Li-rich manganese-based 0.5Li2MnO3·0.5LiCo0.5Mn0.5O2 Cathode Materials by Co-precipitation Method for Lithium Ion Batteries[J]. Journal of the Chinese Ceramic Society, 2020 , 48 (2) : 174 -181 . DOI: 10.14062/j.issn.0454-5648.20190330
Appendix
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Year 2020 volume 48 Issue 2
23
5
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Article Info
doi: 10.14062/j.issn.0454-5648.20190330
  • Receive Date：2019-05-07
  • Online Date：2026-10-29
  • Published：2020-02-20
Article Data
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History
  • Received：2019-05-07
  • Revised：2019-06-21
Funding
Affiliations
    School of Chemistry and Chemical Engineering, Hefei University of Technology, Hefei 230009, China

Corresponding:

YANG Zeheng (1961-), male, 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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