Synthesis and characterizations of highly conductive and stable electrolyte Li10P3S12I
Synthesis and characterizations of highly conductive and stable electrolyte Li10P3S12I
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DOI：
10.1016/j.ensm.2019.07.047
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发表时间：
2019-11-01
影响因子：
20.4
通讯作者：
Hu, Yan-Yan
中科院分区：
文献类型：
--
作者：
Feng, Xuyong;Chien, Po-Hsiu;Hu, Yan-Yan
合成了一种新型微晶玻璃固体电解质Li10P3S12I，它在25℃时具有6.4ms/cm的高离子电导率和0.26 eV的低激活能。与硫代磷酸盐相比，Li10P3S12I对锂金属的稳定性和低界面电阻也有显著提高。示踪交换锂核磁共振研究表明，锂离子在Li10P3S12I中较好地通过玻璃相和玻璃-陶瓷界面传输。仔细控制合成过程以避免完全结晶，有助于稳定高导锂相。
A novel glass-ceramic solid electrolyte Li10P3S12I is synthesized, which delivers a high ionic conductivity of 6.4 mS/cm at 25 degrees C and a low activation energy of 0.26 eV. Li10P3S12I also exhibits significantly enhanced stability and low interfacial resistance against Li metal compared with thiophosphates. Tracer-exchange Li NMR reveals that lithium ions transport preferably through the glass phase and glass-ceramic interface in Li10P3S12I. Careful control of the synthesis process to avoid complete crystallization helps stabilize the highly Li-conductive phase.