Preparation of Novel Electrode Materials Based on Lithium Niobium Sulfides
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概要
- 論文の詳細を見る
Novel lithium niobium sulfide electrode materials, xLi2S·NbS2·(2−x)S (x = 1/2–2), were mechanochemically synthesized using Li2S, NbS2, and S8 as starting materials, and their electrochemical performance was investigated. The electrodes with x = 1/2 were in amorphous phase, while those with x = 1 and 3/2 are assigned as cubic phase. Cells prepared with these electrodes charge and discharge reversibly, with a capacity of ca. 400 mAh g−1. Within the wide operational voltage range 1.0–3.0 V, Li3NbS4 charges and discharges with ca. 4.5-electron processes between Li0.4NbS4 and Li4.9NbS4. Li3NbS4 discharges even at a high current density of 2000 mA g−1 at 30°C.
- 公益社団法人 電気化学会の論文
著者
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Sakaebe Hikari
Research Institute For Ubiquitous Energy Devices National Institute Of Advanced Industrial Science A
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OGUMI Zempachi
Office of Society-Academia Collaboration for Innovation, Kyoto University
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Tatsumi Kuniaki
Research Institute For Ubiquitous Energy Devices National Institute Of Advanced Industrial Science A
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KOBAYASHI Hironori
Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST)
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SAKUDA Atsushi
Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST)
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TAKEUCHI Tomonari
Research Institute for Ubiquitous Energy Devices, National Institute of Advanced Industrial Science and Technology (AIST)
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