Article Title

Highly [010]-oriented self-assembled LiCoPO₄/C nanoflakes as high-performance cathode for lithium ion batteries

Authors

Yan Hou, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
Kun Chang, National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan
Bao Li, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
Hongwei Tang, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China
Zhenyu Wang, Department of Materials Science & Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Jianli Zou, Department of Materials Science & Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Huimin Yuan, Department of Materials Science & Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Zhouguang Lu, Department of Materials Science & Engineering, Southern University of Science and Technology, Shenzhen 518055, China
Zhaorong Chang, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang 453007, China

Keywords

lithium ion battery, lithium cobalt phosphate, two-dimensional (2D) nanoflakes, (010) oriented assembly, solution-phase synthesis

Abstract

ABSTRACT In this article, highly [010]-oriented self-assembled LiCoPO4/C nanoflakes were prepared through simple and facile solution-phase strategies at low temperature and ambient pressure. The formation of 5-hydroxylmethylfurfural and levoglucosan via the dehydration of glucose during the reaction played a key role in mediating the morphology and structure of the resulting products. LiCoPO4 highly oriented along the (010)-facets exposed Li+ ion transport channels, facilitating ultrafast lithium ion transportation. In turn, the unique assembled mesoporous structure and the flake-like morphology of the prepared products benefit lithium ion batteries constructed using two-dimensional (2D) LiCoPO4/C nanoflakes selfassembles as cathodes and commercial Li4Ti5O12 as anodes. The tested batteries provide high capacities of 154.6 mA·h·g−1 at 0.1 C (based on the LiCoPO4 weight of 1 C = 167 mA·h·g−1) and stable cycling with 93.1% capacity retention after 100 cycles, which is outstanding compared to other recently developed LiCoPO4 cathodes.

Graphical Abstract

DOI

https://doi.org/10.1007/s12274-017-1864-0

Publisher

Tsinghua University Press

Recommended Citation

Yan Hou,Kun Chang,Bao Li,Hongwei Tang,Zhenyu Wang,Jianli Zou,Huimin Yuan,Zhouguang Lu,Zhaorong Chang, Highly [010]-oriented self-assembled LiCoPO4/C nanoflakes as high-performance cathode for lithium ion batteries. NanoRes.2018, 11(5): 2424–2435