ALL SOLID STATE BATTERY
    3.
    发明公开

    公开(公告)号:US20240014377A1

    公开(公告)日:2024-01-11

    申请号:US18372451

    申请日:2023-09-25

    摘要: A main object of the present disclosure is to provide a car having an all solid state battery with excellent capacity durability when restraining pressure is not applied or even when low restraining pressure is applied thereto. The present disclosure achieves the object by providing an all solid state battery comprising layers in the order of a cathode layer, a solid electrolyte layer, and an anode layer; wherein the anode layer contains an anode active material including a silicon clathrate II type crystal phase; restraining pressure of 0 MPa or more and less than 5 MPa is applied to the all solid state battery in a layering direction; and a specific surface area of the anode active material is 8 m2/g or more and 17 m2/g or less.

    ALL SOLID STATE BATTERY
    9.
    发明申请

    公开(公告)号:US20220190329A1

    公开(公告)日:2022-06-16

    申请号:US17532704

    申请日:2021-11-22

    摘要: A main object of the present disclosure is to provide an all solid state battery with excellent capacity durability when restraining pressure is not applied or even when low restraining pressure is applied thereto. The present disclosure achieves the object by providing an all solid state battery comprising layers in the order of a cathode layer, a solid electrolyte layer, and an anode layer; wherein the anode layer contains an anode active material including a silicon clathrate II type crystal phase; restraining pressure of 0 MPa or more and less than 5 MPa is applied to the all solid state battery in a layering direction; and when a capacity ratio of anode capacity with respect to cathode capacity is regarded as A, the capacity ratio A is 2.5 or more and 4.8 or less.

    METHOD FOR PRODUCING SI-BASED ACTIVE MATERIAL

    公开(公告)号:US20210300768A1

    公开(公告)日:2021-09-30

    申请号:US17201788

    申请日:2021-03-15

    IPC分类号: C01B33/021

    摘要: A method produces a Si-based active material containing a Si-based clathrate compound decreasing a Na element content while maintaining a crystal phase of type II clathrate. The method that produces a Si-based active material containing a Si-based clathrate compound having a crystal phase of type II clathrate, includes: preparing the Si-based clathrate compound by heating an alloy containing a Na element and a Si element at a temperature of 340° C. or more and less than 400° C. (a first heating step), heating the Si-based clathrate compound at a temperature of 340° C. or more and less than 470° C. after the first heating step (a second heating step), cooling the Si-based clathrate compound to a temperature of less than 340° C. after the second heating step (a cooling step), and heating the Si-based clathrate compound at a temperature of 340° C. or more and less than 470° C. after the cooling step (a third heating step).