Choi, Sungjun Jeon, Minjae Jung, Wo Dum Yang, Sungeun Park, Sangbaek Ji, Ho-Il Lee, Jong-Ho Kim, Byung-Kook Sang, Byoung-In Kim, Hyoungchul 2024-01-19T18:02:16Z 2024-01-19T18:02:16Z 2022-01-10 2020-03 0167-2738 https://pubs.kist.re.kr/handle/201004/118886 We introduced a new elastic interface layer (EIL), (Li2S)(0.75)(P2S5)(0.25) glass, in all-solid-state batteries (ASSBs) to improve the solid-state interfacial structure, and analyzed its structural evolution in electrochemical charge/discharge cycles. This EIL had a lower bulk modulus, thereby providing good powder processability and high mechanical deformability against volume changes of the electrode. Compared to a cell configuring EIL, the reference cell exhibited a considerable increase in the electrolyte resistance; moreover, a new resistance component was identified in the high-frequency region (500-50 kHz). This high-resistance component resulting from interfacial deterioration such as metal fragmentation and micropore formation was successfully suppressed by applying a mechanically deformable EIL. We believe that this study would provide insights into the application of EIL for configuring a stable interface with a metallic electrode in ASSBs. English ELSEVIER ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY LI2S-P2S5 GLASSES ION BATTERIES LITHIUM PERFORMANCE ELECTRODE EXPANSION Robust solid-state interface with a deformable glass interlayer in sulfide-based all-solid-state batteries Article 10.1016/j.ssi.2019.115217 1 SOLID STATE IONICS, v.346 SOLID STATE IONICS 346 scie scopus 000517851600023 2-s2.0-85077312955 Chemistry, Physical Physics, Condensed Matter Chemistry Physics Article; Proceedings Paper ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY LI2S-P2S5 GLASSES ION BATTERIES LITHIUM PERFORMANCE ELECTRODE EXPANSION Elastic interface layer Metallic electrode Glass sulfide Li-ion conductor All-solid-state battery