Synthesis of hierarchical Mn3O4 microsphere composed of ultrathin nanosheets and its excellent long-term cycling performance for lithium-ion batteries

Synthesis of hierarchical Mn3O4 microsphere composed of ultrathin nanosheets and its excellent long-term cycling performance for lithium-ion batteries
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超薄纳米片分级Mn3O4微球的合成及其优异的锂离子电池长期循环性能

DOI:
10.1007/s10854-018-00584-3
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发表时间:
2019-01
期刊:
Journal of Materials Science: Materials in Electronics
影响因子:
--
通讯作者:
Chen Qinghua
Chen Qinghua
中科院分区:
其他
文献类型:
--
作者:
Xu Lihong;Chen Xi;Zeng Lingxing;Liu Renpin;Zheng Cheng;Qian Qingrong;Chen Qinghua

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本工作通过乙醇热还原法初步成功合成了二维超薄纳米片组装的多级Mn3O4微球。当用作锂离子电池负极材料时,分级Mn3O4微球表现出高可逆容量(100 mA g−1 下 640 mAh g−1,100 次循环)、高倍率性能(2 A g−1 下 391 mAh g−1)和出色的长期循环稳定性(1300 次循环后,2 A g−1 下 324 mAh g−1)。其优异的性能可能与其分级微球结构和二维纳米结构有关。
In the present work, the hierarchical Mn3O4 microsphere assembled by two-dimensional ultrathin nanosheets was initially synthesized successfully through ethanol thermal reduction method. When used as the anode materials for lithium ion batteries, the hierarchical Mn3O4 microsphere exhibited large reversible capacity (640 mAh g−1 at 100 mA g−1 for 100 cycles), high rate capability (391 mAh g−1 at 2 A g−1) and outstanding long-time cycling stability (324 mAh g−1 at 2 A g−1 after 1300 cycles). The excellent performances might be related with their hierarchical microsphere structure and two-dimensional nanostructure.
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