Formation of Nanostructured MnO/Co/Solid–Electrolyte Interphase Ternary Composites as a Durable Anode Material for Lithium‐Ion Batteries |
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| Authors: | Dr Feng Dang Dr Yuya Oaki Takao Kokubu Dr Eiji Hosono Dr Haoshen Zhou Prof Dr Hiroaki Imai |
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| Institution: | 1. Department of Applied Chemistry, Faculty of Science and Technology, Keio University, Hiyoshi, Kohoku‐ku, Yokohama 223‐8522 (Japan), Fax: (+81)?45‐566‐1551;2. Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology, 1‐1‐1 Umezono, Tsukuba 305‐8568 (Japan), Fax: (+81)?29‐861‐5799 |
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| Abstract: | Nanoporous MnO frameworks with highly dispersed Co nanoparticles were produced from MnCO3 precursors prepared in a gel matrix. The MnO frameworks that contain 20 mol % Co exhibited excellent cycle performance as an anode material for Li‐ion batteries. The solid–electrolyte interphase (SEI) formed in the frameworks through the electrochemical reaction mediates the active materials, such as MnO, Mn, and Li2O, during the conversion reaction in the charge–discharge cycle. The Co nanoparticles and SEI provide the electron and Li‐ion conductive networks, respectively. The ternary nanocomposites of the MnO framework, metallic Co nanoparticles, and embedded SEI are categorized as durable anode materials for Li‐ion batteries. |
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| Keywords: | anode materials biomimetic synthesis conducting materials manganese nanostructures |
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