A Li-ion oxygen battery with Li-Si alloy anode prepared by a mechanical method |
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| Institution: | 1. Center of Energy Storage Materials & Technology, College of Engineering and Applied Sciences, National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing 210093, PR China;2. Energy Technology Research Institute, National Institute of Advanced Industrial Science and Technology (AIST), Umezono 1-1-1, Tsukuba 3058568, Japan;3. Zhangjiagang Guotai-Huarong New Chemical Materials Co., Ltd, Zhangjiagang 215634, PR China;1. Institute for Energy Technology, P.O. Box 40, NO-2027 Kjeller, Norway;2. Centre for Materials Science and Nanotechnology, University of Oslo, P.O. Box 1126, Blindern, NO-0318 Oslo, Norway;3. SINTEF Materials and Chemistry, P.O. Box 4760, Sluppen, NO-7465 Trondheim, Norway |
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| Abstract: | Li-O2 battery is the leading next-generation battery system, which is known for its extremely high theoretic specific energy. However, the Li metal used in Li-O2 batteries suffers from low Li utilization and safety hazards. In this work, as an alternative to Li anode, Li21Si5 powders, which are synthesized by an easy mechanical process, are incorporated into a Li-ion oxygen battery. The electrochemical property of the prepared battery and its cycling stability are investigated. Without electrochemical prelithiation, the pursuit of Li-Si alloy anodes in this study provides an easy and scalable strategy for preparing Li-ion oxygen batteries. |
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