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| Synthesis of LiNixMn2-xO4 by Solid Phase Sintering Assisted High Temperature Ball Milling |
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Received:December 05, 2018
Revised:December 05, 2018
Accepted:December 10, 2018
Published Online:February 15, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.03.013 |
| KeyWord:lithium ion battery; cathode material; high temperature ball milling; Ni-doping; electrochemical properties |
| Author | Institution |
| GENG Shu-dong |
吉林化工学院 |
| WANG Chen |
吉林化工学院 |
| ZHANG Yu |
吉林化工学院 |
| JIANG Li-li |
吉林化工学院 |
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| Abstract: |
| Ni doped LiMn2O4 cathode material was synthesized by solid phase sintering assisted high temperature ball milling applying LiOH?H2O, Ni(NO3)2?6H2O and MnO2 as raw materials. Effects of dosage of Ni doping on crystal structure, surface morphology and charge-discharge performance of materials were studied and compared with that of without Ni doping. The results show that discharge capacity of material drops with increase of dosage of Ni doping. Capacity retention rate of material is improved by Ni doping. When the value of the doping is 0.05, the charge discharge performance of the prepared product is optimal. Its initial discharge capacity is 122.9 mAh/g, and charge-discharge capacity retention rate is 97.48% after 40 cycles when dosage of Ni doping is x=0.05. |
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