SnNi-deposited carbonaceous mesophase spherule as anode material for lithium ion batteries |
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| Institution: | 1. Department of Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China;2. Shanghai Shanshan Tech. Co. Ltd., Pudong, Shanghai 200122, China;1. Laboratory of Materials Engineering and Environment (LR11ES46), BP 1173, ENIS, Sfax University, Tunisia;2. I3N and Physics Department, Aveiro University, 3810-193, Aveiro, Portugal;1. Department of Neurosurgery, Stanford University School of Medicine, 300 Pasteur Dr, R291 MC 5327, Palo Alto, CA 94305-5327, USA;2. Health Economics Resource Center, Veterans Health Administration, Menlo Park, CA, USA;3. Department of Medicine, Stanford University School of Medicine, 300 Pasteur Dr, R291 MC 5327, Palo Alto, CA 94305-5327, USA;1. Research Center for Ultra-High Voltage Electron Microscopy, Osaka University, 7-1, Mihogaoka, Ibaraki, Osaka 567-0047, Japan;2. Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1, Yamada-Oka, Suita, Osaka 565-0871, Japan;1. Research Center of Laser Fusion, China Academy of Engineering Physics, Mianyang 621900, PR China;2. Department of Materials Engineering, Mianyang Vocational and Technical College, Mianyang 621900, PR China;3. Shanghai EBIT Lab, Key Laboratory of Nuclear Physics and Ion-beam Application, Research Center of Laser Fusion, China Academy of Engineering Physicals, Mianyang 621900, PR China;1. State Key Laboratory of Silicon Materials, Department of Materials Science and Engineering, Zhejiang University, Hangzhou 310027, China;2. Key Laboratory of Advanced Materials and Applications for Batteries of Zhejiang Province, China;3. School of Materials Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China;4. Industrial Technology Research Institute of Zhejiang University, Hangzhou 310058, China |
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| Abstract: | Carbonaceous mesophase spherule (CMS) is a commercial anode material for rechargeable lithium batteries. A composite anode material of SnNi deposited carbonaceous mesophase spherule was prepared by co-precipitation method. The structural and electrochemical characterization of the SnNi/CMS composite anode material was studied. According to the measurement of its electrochemical characterization, the prepared SnNi/CMS composite anode material shows much better electrochemical performance than CMS. The first discharge capacity of 360 mA h g−1 was obtained for the SnNi/CMS composite anode material, and its discharge capacity maintained at 320–340 mA h g−1 in the following cycles. It indicates that the modification of CMS with SnNi alloy can further improve the intercalation performance of CMS. SnNi/CMS composite material shows a good candidate anode material for the commercial rechargeable lithium batteries. |
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