Due to an increasing demand for safe lithium-ion batteries (LIBs), all-solid-state lithium batteries (ASLBs) using inorganic solid electrolytes (SEs) attract much attention. Especially, bulk-type ASLBs using sulfide SEs, in which composite electrodes consist of SE powders, active materials, and conductive additives, are considered as one of the most promising alternatives because of high ionic conductivities (10-3-10-2 S cm-1) and ductility of sulfide SEs such as Li10GeP2S12 and Li2S-P2S5. Considering proper cathode materials for the bulk-type ASLBs using sulfide SEs, adopting conventional LixMO2 (M = Co, Mn, Ni) is difficult because electrochemical oxidation of sulfide SEs starts at ~3 V (vs. Li/Li ~+) and sulfide SEs are not compatible with oxide electrode materials. In this regard, transition metal sulfides which can operate at mild voltages (?3 V vs. Li/Li +) can be attractive for the bulk-type ASLBs.
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机译：由于对安全锂离子电池（LIBS）的需求不断增加，使用无机固体电解质（SES）的全固态锂电池（SES）引起了很多关注。特别是使用硫化物SE的体型ASLB，其中复合电极由SE粉末，活性材料和导电添加剂组成，被认为是由于高离子导电性（10-3-10-2厘米）的最有前途的替代品之一（10-3-10-2厘米） -1）和硫化物SES的延展性，如Li10GeP2S12和Li 2 S-P2S5。考虑使用硫化物SES的体型ASLBS的适当的阴极材料，采用常规的LIXMO2（M = CO，MN，Ni），因为硫化物SE的电化学氧化在〜3V（与Li / Li +）和硫化物中开始SES与氧化物电极材料不兼容。在这方面，可以在温和电压（α3V与Li / Li +）下操作的过渡金属硫化物可以对散装ASLBS具有吸引力。
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