Hierarchical porous Li4Mn5O12 nano/micro structure as superior cathode materials for Li-ion batteries

FU Yao; JIANG Hao; ZHANG Ling; HU Yanjie; LI Chunzhong

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Hierarchical porous Li4Mn5O12 nano/micro structure as superior cathode materials for Li-ion batteries

FU Yao 1,JIANG Hao 2 #,ZHANG Ling 3,HU Yanjie 3,LI Chunzhong 1

1.Key Laboratory for Ultraﬁne Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology,200237

2.(Key Laboratory for Ultraﬁne Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology,200237

3.Key Laboratory for Ultra?ne Materials of Ministry of Education, School of Materials Science and Engineering, East China University of Science and Technology,200237

*Correspondence author

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Funding: the Special Research Fund for the Docoral Program of Higher Education of China （No.20110074110010, 20120074120004）

Opened online: 3 March 2014

Accepted by: none

Citation: FU Yao,JIANG Hao,ZHANG Ling.Hierarchical porous Li4Mn5O12 nano/micro structure as superior cathode materials for Li-ion batteries[OL]. [ 3 March 2014] http://en.paper.edu.cn/en_releasepaper/content/4587083

To overcome the disproportionation reaction and Jahn-Teller distortion of Mn3+ in LiMn2O4 cathode materials, we demonstrate a facile route to synthesize hierarchical porous Li4Mn5O12 nano/micro structure, which consists of numerous well-crystallized nanoparticles with diameters of 20-30 nm. The unque structure combines the advantages of both nanostructure and microstructure. When applied as cathode materials for Li-ion batteries, it exhibited a very high specific capacity of 161 mAh g-1 (theoretical value: 163 mAh g-1) with intriguing rate performance and cycling stability.

Keywords:Li4Mn5O12; hierarchical porous nano/micro structure; Li-ion batteries

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