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High lithium ion conduction of sulfide glass-based solid electrolytes and their application to all-solid-state batteries

机译:硫化物玻璃基固体电解质的高锂离子传导性及其在全固态电池中的应用

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摘要

Sulfide glass-based solid electrolytes prepared by melt quenching and mechanical milling were reviewed. The sulfide and oxysulfide glass-ceramic electrolytes in the system Li2S-P2S5-P2O5 with superionic Li7P3S11 and Li3.25P0.95S4 crystals exhibited high conductivity of over 10(-3) S cm(-1) at room temperature and high electrochemical stability. Newly designed all-sulfide batteries 80SnS.20P(2)S(5)/80Li(2)S.20P(2)S(5)/75Li(2)S.25Cu were successfully fabricated; reversible charge-discharge capacities of more than 400 mAh g(-1) were observed after the second to 10th cycles. The operation of those all-sulfide lithium secondary batteries is a first step for the realization of the all-solid-state monolithic batteries.
机译:综述了通过熔融淬火和机械研磨制备的基于硫化物玻璃的固体电解质。具有超离子Li7P3S11和Li3.25P0.95S4晶体的Li2S-P2S5-P2O5系统中的硫化物和氧硫化物玻璃陶瓷电解质在室温下显示出超过10(-3)S cm(-1)的高电导率和高电化学稳定性。成功设计了新设计的全硫化物电池80SnS.20P(2)S(5)/ 80Li(2)S.20P(2)S(5)/ 75Li(2)S.25Cu。在第二到第十个循环后,观察到可逆的充放电容量超过400 mAh g(-1)。这些全硫化锂二次电池的操作是实现全固态单块电池的第一步。

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