Characterization of Li2S-P2S5 glass-ceramics as a solid electrolyte for lithium secondary batteries
Characterization of Li2S-P2S5 glass-ceramics as a solid electrolyte for lithium secondary batteries
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DOI：
10.1016/j.ssi.2004.08.036
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发表时间：
2004-11-30
影响因子：
3.2
通讯作者：
Tatsumisago, M
中科院分区：
文献类型：
--
作者：
Hayashi, A;Hama, S;Tatsumisago, M
以机械研磨的80Li(2)S(2)为原料，制备了玻璃陶瓷固体电解质。研究了20P(2)S(5)玻璃及其电学和电化学性能。作为锂二次电池的固体电解质，微晶玻璃具有高的环境温度电导率(7.2 × 10(-4) S cm(-1))，锂输运数统一，电化学窗口宽，对锂金属的稳定性好等优点。全固态电池In/80Li(2)S（.）20P(2)S(5)玻璃陶瓷/LiCoO2在室温下作为锂二次电池工作，直到第200次循环仍保持约100 mA h g（-1）的大放电容量，充放电效率为100%。(C) 2004 Elsevier B.V.版权所有
Glass-ceramic solid electrolytes were prepared by crystallization of the mechanically milled 80Li(2)S(.)20P(2)S(5) glass and their electrical and electrochemical properties were examined. The glass-ceramics exhibited favorable features as a solid electrolyte for lithium secondary batteries such as high ambient temperature conductivity of 7.2 x 10(-4) S cm(-1), unity of lithium transport number, wide electrochemical window, and high stability, against lithium metal. All-solid-state cells In/80Li(2)S(.)20P(2)S(5) glass-ceramic/LiCoO2 worked as lithium secondary batteries at room temperature and maintained large discharge capacity of about 100 mA h g(-1) up to the 200th cycle with the charge-discharge efficiency of 100%. (C) 2004 Elsevier B.V. All rights reserved.