Electrochemical properties of all solid state Li/S battery |
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| Authors: | Ji-Hyun Yu Jin-Woo Park Qing Wang Ho-Suk Ryu Ki-Won Kim Jou-Hyeon Ahn Yongku Kang Guoxiu Wang Hyo-Jun Ahn |
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| Affiliation: | 1. School of Materials Science and Engineering, WCUNGB, RIGET, Gyeongsang National University, Jinju 660-701, Republic of Korea;2. Department of Chemical & Biological Engineering, Gyeongsang National University, Jinju 660-701, Republic of Korea;3. Korea Research Institute of Chemical Technology, Daejeon 305-600, Republic of Korea;4. School of Chemistry and Forensic Science, University of Technology Sydney, Broadway, Sydney, NSW 2007, Australia;1. Department of Electronic Chemistry, Tokyo Institute of Technology, Yokohama 226-8502, Japan;2. Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama 226-8502, Japan;1. Department of Materials Science and Technology, China University of Geosciences, Beijing, 100083, PR China;2. State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, PR China;3. Department of Electrical Engineering, Zhengzhou University, Zhengzhou, 450001, PR China;1. Department of Electronic Chemistry, Tokyo Institute of Technology, Yokohama 226-8502, Japan;2. Chemical Resources Laboratory, Tokyo Institute of Technology, Yokohama 226-8502, Japan |
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| Abstract: | All-solid-state lithium/sulfur (Li/S) battery is prepared using siloxane cross-linked network solid electrolyte at room temperature. The solid electrolytes show high ionic conductivity and good electrochemical stability with lithium and sulfur. In the first discharge curve, all-solid-state Li/S battery shows three plateau potential regions of 2.4 V, 2.12 V and 2.00 V, respectively. The battery shows the first discharge capacity of 1044 mAh g?1-sulfur at room temperature. This first discharge capacity rapidly decreases in 4th cycle and remains at 512 mAh g?1-sulfur after 10 cycles. |
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