All solid state battery, method for producing all solid state battery, and method for recovering all solid state battery
AssigneeToyota Jidosha Kabushiki Kaisha
InventorFuminori Mizuno
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Abstract
A main object of the present disclosure is to provide an all solid state battery with capacity durability. The present disclosure achieves the object by providing an all solid state battery including a cathode layer, an anode layer, and a solid electrolyte layer arranged between the cathode layer and the anode layer, wherein the anode layer contains a granulated body including a Si-based active material and a molten salt, which is in a solid state at 25° C.
Claims10
An all solid state battery comprising a cathode layer, an anode layer, and a solid electrolyte layer arranged between the cathode layer and the anode layer, wherein:
- the anode layer contains a granulated body including a Si-based active material and a molten salt, which is in a solid state at 25° C.;
- and
- the molten salt contains lithium bis(trifluoromethanesulfonyl)amide (Li-TFSA) and tetrabutylammonium bis(trifluoromethanesulfonyl)amide (TBA-TFSA).
A method for producing an all solid state battery including a cathode layer, an anode layer, and a solid electrolyte layer arranged between the cathode layer and the anode layer, the method comprising:
- an anode layer forming step of forming the anode layer containing a granulated body including a Si-based active material and a molten salt, which is in a solid state at 25° C.,
- wherein the molten salt contains lithium bis(trifluoromethanesulfonyl)amide (Li-TFSA) and tetrabutylammonium bis(trifluoromethanesulfonyl)amide (TBA-TFSA).
A method for recovering an all solid state battery including a cathode layer, an anode layer, and a solid electrolyte layer arranged between the cathode layer and the anode layer, wherein:
- the anode layer contains a granulated body including a Si-based active material and a molten salt, which is in a solid state at 25° C.;
- the molten salt contains lithium bis(trifluoromethanesulfonyl)amide (Li-TFSA) and tetrabutylammonium bis(trifluoromethanesulfonyl)amide (TBA-TFSA);
- and
- the method comprising a high temperature charge and discharge step of conducting charge and discharge at a temperature equal to or more than a melting point of the molten salt.
Dependencies are inferred from the claim text.