Method for manufacturing solid-state battery and solid-state battery

Patent metadata

Field	Value
Publication number	US-11398646-B2
Application number	US-202016853720-A
Country	US
Kind code	B2
Filing date	Apr 20, 2020
Priority date	Apr 26, 2019
Publication date	Jul 26, 2022
Grant date	Jul 26, 2022

Abstract

A method for manufacturing a solid-state battery includes: an electrode material filling step of filling a plurality of holes of a porous conductive base material with an active material contained in an electrode slurry so as to form a first electrode body, by dipping the porous conductive base material having the plurality of holes into the electrode slurry; a solid electrolyte material coating step of coating a surface with a solid electrolyte material contained in a solid-electrolyte slurry by dipping at least one of the first electrode body or a second electrode body having a polarity different from that of the first electrode body into the solid-electrolyte slurry; and a solid-state battery laminating step of obtaining a solid-state battery by laminating and pressing the first electrode body and the second electrode body.

First claim

What is claimed is:

1. A method for manufacturing a solid-state battery, comprising:
an electrode material filling step of filling a plurality of holes of a porous conductive base material with an active material contained in an electrode slurry so as to form a first electrode body, by dipping the porous conductive base material having the plurality of holes into the electrode slurry;
a solid electrolyte material coating step of coating a surface with a solid electrolyte material contained in a solid-electrolyte slurry by dipping at least one of the first electrode body or a second electrode body having a polarity different from that of the first electrode body into the solid-electrolyte slurry; and
a solid-state battery laminating step of obtaining a solid-state battery by laminating and pressing the first electrode body and the second electrode body.

2. The method for manufacturing a solid-state battery according to claim 1 ,
wherein the solid electrolyte material coating step is a step of coating the surface with the solid electrolyte material contained in the solid-electrolyte slurry by dipping the first electrode body and the second electrode body into the solid-electrolyte slurry.

3. The method for manufacturing a solid-state battery according to claim 2 ,
wherein the solid-state battery laminating step is a step of obtaining the solid-state battery by alternately laminating and pressing a plurality of the first electrode body and the second electrode body.

4. The method for manufacturing a solid-state battery according to claim 1 ,
wherein the solid-state battery laminating step is a step of laminating a plurality of solid-state battery cells configured of the second electrode body and the first electrode body coated with the solid electrolyte material and laminating insulators between the solid-state battery cells.

5. The method for manufacturing a solid-state battery according to claim 2 ,
wherein the solid-state battery laminating step is a step of laminating a plurality of solid-state battery cells configured of the second electrode body and the first electrode body coated with the solid electrolyte material and laminating insulators between the solid-state battery cells.

6. A solid-state battery in which a first electrode body and a second electrode body having a polarity different from that of the first electrode body are laminated,
wherein both surfaces of at least one of the first electrode body or the second electrode body in a lamination direction are coated with a solid electrolyte material, and
wherein the first electrode body contain a porous conductive base material having a plurality of holes and an active material filled into the plurality of holes.

7. The solid-state battery according to claim 6 ,
wherein both surfaces of each of the first electrode body and the second electrode body in the lamination direction are coated with the solid electrolyte material.

Assignees

• Honda Motor Co Ltd

Inventors

• Kawamura Soshi
• Shimizu Wataru
• Harada Ushio

Classifications

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M10/0585 Primary

  of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators · CPC title

• H01M10/056

  characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes · CPC title

• H01M10/0562

  Solid materials · CPC title

• H01M2300/0065

  Solid electrolytes · CPC title