基本信息:
- 专利标题： NEGATIVE ELECTRODE, SECONDARY BATTERY, AND SOLID-STATE SECONDARY BATTERY
- 申请号：US17632358 申请日：2020-07-29
- 公开(公告)号：US20220293923A1 公开(公告)日：2022-09-15
- 发明人： Kazutaka KURIKI , Yumiko YONEDA , Hiroshi KADOMA , Kaori OGITA , Shunpei YAMAZAKI
- 申请人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- 申请人地址： JP Sagamihara-shi, Kanagawa-ken
- 专利权人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- 当前专利权人： SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- 当前专利权人地址： JP Sagamihara-shi, Kanagawa-ken
- 优先权： JP2019-147278 20190809,JP2019-191144 20191018
- 国际申请： PCT/IB2020/057126 WO 20200729
- 主分类号： H01M4/38
- IPC分类号： H01M4/38 ; H01M4/36 ; H01M10/0525
摘要：
A highly reliable solid-state secondary battery with improved cycle performance, reliability, or safety is provided. A negative electrode includes, over a negative electrode current collector, n negative electrode active material layers (n is an integer greater than or equal to 2) and n−1 separation layers. The negative electrode active material layers and the separation layers are alternately stacked. The thickness of the negative electrode active material is greater than or equal to 20 nm and less than or equal to 100 nm. The separation layers each include titanium. The separation layer preferably includes titanium (Ti), titanium nitride (TiN), or titanium oxynitride (TiOxNy, 0