Electrode current collector and all solid state battery
AssigneeToyota Jidosha Kabushiki Kaisha
InventorYuki MATSUSHITA
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Abstract
A main object of the present disclosure is to provide an electrode current collector in which the peel-off of a coating layer and an aluminum oxide layer is inhibited. The present disclosure achieves the object by providing an electrode current collector to be used in an all solid state battery, the electrode current collector comprising: a current collecting layer, an aluminum oxide layer, and a coating layer containing a conductive material, a resin, and an inorganic filler, in this order; and an Al—F bond is present in the aluminum oxide layer.
Claims8
An electrode current collector to be used in an all solid state battery, the electrode current collector comprising:
- a current collecting layer, an aluminum oxide layer, and a coating layer containing a conductive material, a resin, and an inorganic filler, in this order;
- and
- an Al—F bond is present in the aluminum oxide layer.
A method for producing an electrode current collector to be used in an all solid state battery, the method comprising:
- a preparing step of preparing a precursor member including a current collecting layer and an aluminum oxide layer;
- and
- a coating layer forming step of forming a coating layer by pasting a composition containing a conductive material, a resin, and an inorganic filler, as well as a fluorine element, on a surface of the aluminum oxide layer side of the precursor member, and followed by conducting a heat treatment;
- wherein
- an Al—F bond is formed in the aluminum oxide layer by the heat treatment in the coating layer forming step.
Dependencies are inferred from the claim text.