Solid battery package

Abstract

To provide a solid battery package which copes with: cracking of the solid battery package caused by charging / discharging of a solid battery; removal of a coating part; and fracture of an internal structure of the solid battery due to lack of binding force of the coating part.SOLUTION: A solid battery package comprises: a substrate 200; a solid battery 100 provided on the substrate; and a coating part 150 made at least of a coating insulation layer 160 provided on the substrate in a manner coating the solid battery and a coating inorganic layer 170 provided outside the coating insulation layer. The coating insulation layer contains resin and has an elastic modulus of 100 MPa or higher and a fracture strain of 2.5% or higher.SELECTED DRAWING: Figure 2

Claims

1. circuit board and A solid battery provided on the substrate, A covering portion comprising at least a covering insulating layer provided on the substrate so as to cover the solid battery and a covering inorganic layer provided on the outside of the covering insulating layer. Equipped with, The aforementioned insulating coating layer contains resin, has an elastic modulus of 100 MPa or more, and a fracture strain of 2.5% or more. The resin is a solid battery package containing a filler in an amount of 1% to 30% by weight based on the entire coating insulating layer.

2. The solid battery package according to claim 1, wherein the elastic modulus is 10 GPa or less and the fracture strain is 10% or less.

3. The solid battery package according to claim 1 or 2, wherein the resin is selected from at least one of the group consisting of epoxy resins, silicone resins, and liquid crystal polymers.

4. The solid battery package according to any one of claims 1 to 3, wherein the covering inorganic layer is provided so as to cover the covering insulating layer and the side surface of the substrate.

5. The solid battery package according to any one of claims 1 to 4, wherein the solid battery is made of a sintered body.

6. The solid battery package according to any one of claims 1 to 5, wherein the positive electrode layer and the negative electrode layer of the solid battery are layers capable of intercalating and deintercalating lithium ions.

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