In-situ grown hierarchical ZnCo2O4 nanosheets on nickel foam as binder-free anode for lithium ion batteries |
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Authors: | Jie Zhang Ruixia Chu Yanli Chen Heng Jiang Ying Zhang Nay Ming Huang Hang Guo |
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Affiliation: | 1. Pen-Tung Sah Institute of Micro-Nano Science and Technology, Xiamen University, 361005 Xiamen, People''s Republic of China;2. College of Materials, Xiamen University, 361005 Xiamen, People''s Republic of China;3. Xiamen University Malaysia, 43900 Sepang, Selangor Darul Ehsan, Malaysia |
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Abstract: | Nickle foam-supported hierarchical ZnCo2O4 nanosheets was prepared via a facile solution-based method. Porous ZnCo2O4 nanosheets were in-situ grown on current collector, forming a binder-free electrode. When evaluated as anode for Lithium ion batteries (LIBS), the binder-free electrode showed an attractive electrochemical performance. A reversible capacity of 773?mAh?g?1 could be stably delivered after a 500-cycle test at a current density of 0.25?A?g?1, with a high capacity retention of 87%. The electrode could maintain a high reversible capacity of 245?mA?h?g?1 even at an elevated current density of 8.0?A?g?1. Integrated structure and rich porosity of the binder-free electrode were believed to contribute to the superior performance. Thus, the Nickle foam-supported ZnCo2O4 electrode is a promising anode for high performance LIBs in the coming future. |
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Keywords: | Binder-free anode Lithium ion batteries |
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