Mesocrystal MnO cubes as anode for Li-ion capacitors
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- 作者：Chaofeng LiuaAuthor Vitae ; Changkun ZhangaAuthor Vitae ; Huanqiao SongaAuthor Vitae ; Cuiping Zhanga ; Yaguang LiuaAuthor Vitae ; Xihui NanaAuthor Vitae ; Guozhong Caoa ; b ; gzcao@u.washington.edu" class="auth_mail" title="E-mail the corresponding authorAuthor Vitae
- 关键词：Li-ion capacitor ; Mesocrystal MnO cubes ; Homoepitaxial aggregation ; Anode ; Cationic vacancies
- 刊名：Nano Energy
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：22
- 期：Complete
- 页码：290-300
- 全文大小：2919 K
文摘
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Mesocrystal MnO cubes with percolated nanopores (~10.5 nm) and a porosity of 45% were synthesized.
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Cationic vacancies enhanced Li ion diffusion coefficient of MnO from 6.96×10−14 cm2/s to 3.33×10−13 cm2/s.
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Porous carbon coating improved the electrical conductivity of active materials.
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The maximum energy density of 227 Wh W h kg−1 was delivered in a full capacitor.