Article Title
Graphene and cobalt phosphide nanowire composite as an anode material for high performance lithium-ion batteries
Authors
Jun Yang, Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
Yu Zhang, School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
Chencheng Sun, Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
Hongzheng Liu, School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
Laiquan Li, Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
Weili Si, Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
Wei Huang, Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
Qingyu Yan, School of Materials Science and Engineering, Nanyang Technological University, Singapore 639798, Singapore
Xiaochen Dong, Key Laboratory of Flexible Electronics (KLOFE) & Institute of Advanced Materials (IAM), Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University (NanjingTech), Nanjing 211816, China
Keywords
cobalt phosphide, nanowires, anodes, lithium-ion battery
Abstract
The synthesis of a composite of cobalt phosphide nanowires and reduced graphene oxide (denoted CoP/RGO) via a facile hydrothermal method combined with a subsequent annealing step is reported. The resulting composite presents large specific surface area and enhanced conductivity, which can effectively facilitate charge transport and accommodates variations in volume during the lithiation/de-lithiation processes. As a result, the CoP/RGO nanocomposite manifests a high reversible specific capacity of 960 mA·h·g–1 over 200 cycles at a current density of 0.2 A·g–1 (297 mA·h·g–1 over 10,000 cycles at a current density of 20 A·g–1) and excellent rate capability (424 mA·h·g–1 at a current density of 10 A·g–1).
Graphical Abstract
Publisher
Tsinghua University Press
Recommended Citation
Jun Yang,Yu Zhang,Chencheng Sun,Hongzheng Liu,Laiquan Li,Weili Si,Wei Huang,Qingyu Yan,Xiaochen Dong, Graphene and cobalt phosphide nanowire composite as an anode material for high performance lithium-ion batteries. NanoRes.2016, 9(3): 612–621
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