• 专利标题:   All All-solid-state secondary battery, preferably lithium battery, comprises anode active material layer on anode current collector, and metal layer formed between anode active material layer and anode current collector, where metal layer comprises lithium or lithium alloy.
  • 专利号:   US2023187705-A1
  • 发明人:   AIHARA Y, YAMADA T, YASHIRO N, SUZUKI N
  • 专利权人:   SAMSUNG ELECTRONICS CO LTD
  • 国际专利分类:   H01M010/0525, H01M010/0562, H01M010/0585, H01M010/44, H01M004/133, H01M004/36, H01M004/38, H01M004/587, H01M004/66
  • 专利详细信息:   US2023187705-A1 15 Jun 2023 H01M-010/0585 202352 English
  • 申请详细信息:   US2023187705-A1 US163963 03 Feb 2023
  • 优先权号:   JP223661

▎ 摘  要

NOVELTY - All-solid-state secondary battery comprises a cathode comprising a cathode active material layer, an anode comprising an anode current collector, and an anode active material layer on the anode current collector. The anode active material layer comprises an anode active material comprising a first particle comprising amorphous carbon, and 8-60 wt.% second particle comprising a metal or a semiconductor, and a binder. A solid electrolyte layer is formed between the cathode and the anode. A metal layer is formed between the anode active material layer and anode current collector, where the metal layer comprises lithium or a lithium alloy. USE - All-solid-state secondary battery, preferably lithium battery (claimed) ADVANTAGE - The all-solid-state secondary battery has enhanced long-term reliability in a charged state and improved cycle characteristics. The anode active material layer may cover the metal layer, and thus may act as a protective layer for the metal layer, and the anode active material layer may inhibit the deposition and growth of a dendrite. This may inhibit or reduce the likelihood of a short circuit and capacity reduction of the all-solid-state secondary battery.