Interfacial phenomena in solid-state lithium battery with sulfide solid electrolyte

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• 作者：Kazunori Takada ; Narumi Ohta ; Lianqi Zhang ; Xiaoxiong Xu ; Bui Thi Hang ; Tsuyoshi Ohnishi ; Minoru Osada ; Takayoshi Sasaki
• 关键词：Lithium battery ; Solid electrolyte ; Nanoionics ; Interface ; Space-charge layer
• 刊名：Solid State Ionics
• 出版年：2012
• 出版时间：4 October, 2012
• 年：2012
• 卷：225
• 期：Complete
• 页码：594-597
• 全文大小：367 K

文摘

The effects of surface coating on electrode properties of LiMn₂O₄ in a sulfide solid electrolyte were investigated. The surface coating with LiNbO₃ reduced the electrode resistance by two orders of magnitude. Changes in the electrode properties were very similar to those observed for the corresponding LiCoO₂ electrodes, which strongly suggest that the space-charge layer formed at the high-voltage cathode/sulfide electrolyte interface is rate-determining and must be controlled to improve the rate capability.