High Cathode Loading and Low‐Temperature Operating Garnet‐Based All‐Solid‐State Lithium Batteries – Material/Process/Architecture Optimization and Understanding of Cell Failure
Abstract:All‐solid‐state lithium batteries (ASSLBs) are prepared using garnet‐type solid electrolytes by quick liquid phase sintering (Q‐LPS) without applying high pressure during the sintering. The cathode layers are quickly sintered with a heating rate of 50–100 K min−1 and a dwell time of 10 min. The battery performance is dramatically improved by simultaneously optimizing materials, processes, and architectures, and the initial discharge capacity of the cell with a LiCoO2‐loading of 8.1 mg reaches 1 mAh cm−2 and 13… Show more
“…The decomposition of Li 7 SbO 6 was initiated by the generation of Li 2 O, which easily reacted with humid air to form Li(OH); this functioned as a low-melting-point material that promoted the sintering of LLZ. 36 Thus, sintering of the Ca–Sb-doped LLZ with Li–Sb–O sintering aids can be influenced by Li(OH).…”
Co-sintering a cathode material and the Li7La3Zr2O12 (LLZ) electrolyte can assist in fabricating bulk-type all-solid-state batteries (ASSBs). However, owing to the use of low temperatures to prevent reactions between the...
“…The decomposition of Li 7 SbO 6 was initiated by the generation of Li 2 O, which easily reacted with humid air to form Li(OH); this functioned as a low-melting-point material that promoted the sintering of LLZ. 36 Thus, sintering of the Ca–Sb-doped LLZ with Li–Sb–O sintering aids can be influenced by Li(OH).…”
Co-sintering a cathode material and the Li7La3Zr2O12 (LLZ) electrolyte can assist in fabricating bulk-type all-solid-state batteries (ASSBs). However, owing to the use of low temperatures to prevent reactions between the...
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