High rate capabilities of all-solid-state lithium secondary batteries using Li4Ti5O12-coated LiNi0.8Co0.15Al0.05O2 and a sulfide-based solid electrolyte
High rate capabilities of all-solid-state lithium secondary batteries using Li4Ti5O12-coated LiNi0.8Co0.15Al0.05O2 and a sulfide-based solid electrolyte
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DOI：
10.1016/j.jpowsour.2011.03.090
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发表时间：
2011-08-01
影响因子：
9.2
通讯作者：
Takada, Kazunori
中科院分区：
文献类型：
--
作者：
Seino, Yoshikatsu;Ota, Tsuyoshi;Takada, Kazunori
以70Li(2)S- 30p (2)S(5)微晶玻璃作为硫化固体电解质，研究了LiNi0.8Co0.15Al0.05O2在固态电池中的速率性能。它比LiCoO2表现出更高的速率能力；在10毫安厘米（-2）电流密度下观察到的放电容量约为70毫安克（-1）。在LiNi0.8Co0.15Al0.05O2颗粒表面涂覆Li4Ti5O12进一步提高了高倍率性能，达到约110 mAh g-1。该倍率能力有望实现具有非常高性能的全固态锂二次电池。(C) 2011 Elsevier B.V.版权所有
Rate capability of LiNi0.8Co0.15Al0.05O2 in solid-state cells was investigated with 70Li(2)S-30P(2)S(5) glass-ceramics as a sulfide solid electrolyte. It showed higher rate capability than LiCoO2; discharge capacity observed at a current density of 10 mA cm(-2) was ca. 70 mAh g(-1). Surface coating with Li4Ti5O12 onto the LiNi0.8Co0.15Al0.05O2 particles further improved the high-rate performance to give ca. 110 mAh g-1. The rate capability promises to realize all-solid-state lithium secondary batteries with very high performance. (C) 2011 Elsevier B.V. All rights reserved.