IP Library › Granted Patent US 11,710,830
Granted Patent B2
US 11,710,830 · App. 16/700,353 · Granted Jul 25, 2023

Electrode laminate for all-solid-state batteries and method for producing the electrode laminate

Inventors: Seiko Kubota (Toyota, JP); Masato Ono (Toyota, JP); Kazuhito Kato (Toyota, JP); Norihiro Ose (Toyota, JP)
Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHA
H01M4/667H01M4/0404H01M10/0585
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 11,710,830
App. No.
16/700,353
Granted
Jul 25, 2023
Kind
B2
Abstract

Provided is an electrode laminate for all-solid-state batteries, which is configured to suppress the occurrence of short circuits in all-solid-state batteries and/or to suppress a decrease in the durability of all-solid-state batteries, and which is configured to suppress an increase in the resistance value of all-solid-state batteries. Disclosed is an electrode laminate for all-solid-state batteries, comprising: a current collector complex comprising adhesive portions and a current collector portion that comprises at least a current collector, and an active material layer disposed on the current collector complex, wherein an active material layer-side main surface of the current collector portion and active material layer-side main surfaces of the adhesive portions are formed to be one flat surface, and the current collector portion and the active material layer are attached by the adhesive portions.

Claims (11)

1. An electrode laminate for all-solid-state batteries, comprising:

a current collector complex comprising adhesive portions and a current collector portion that comprises at least a current collector and a carbon coat layer formed with one or more holes, wherein the carbon coat layer is formed directly on the current collector, and

an active material layer disposed on the current collector complex,

wherein an active material layer-side main surface of the current collector portion and active material layer-side main surfaces of the adhesive portions are formed in the holes to form a coplanar surface, and the current collector portion and the active material layer are attached by the adhesive portions.

2. A method for producing an electrode laminate for all-solid-state batteries, the method comprising:

forming a current collector complex comprising adhesive portions and a current collector portion that comprises at least a current collector and a carbon coat layer formed with one or more holes, wherein the carbon coat layer is formed directly on the current collector, main surfaces of the adhesive portions are formed in the one or more holes of the carbon coat layer to form a coplanar surface, and

attaching the current collector portion and an active material layer by the adhesive portions by forming the active material layer on a main surface of the current collector complex, which is a main surface on a side where the adhesive portions are exposed.

3. The electrode laminate for all-solid-state batteries according to claim 1 , wherein the adhesive portions are disposed at the four corners of the carbon coat layer.

4. The electrode laminate for all-solid-state batteries according to claim 1 , wherein the adhesive portion is disposed at the center of the carbon coat layer.

5. The method for producing the electrode laminate for all-solid-state batteries according to claim 2 , wherein the adhesive portions are disposed at the four corners of the carbon coat layer.

6. The method for producing the electrode laminate for all-solid-state batteries according to claim 2 , wherein the adhesive portion is disposed at the center of the carbon coat layer.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 5, 2019
From: KUBOTA, SEIKO; ONO, MASATO; KATO, KAZUHITO; OSE, NORIHIRO
To: TOYOTA JIDOSHA KABUSHIKI KAISHA
Reel/Frame 051189/0559 →
Priority Claims (2)
JP 2018-228379 · Dec 5, 2018 · national
JP 2019-182448 · Oct 2, 2019 · national
Continuity (1)
Related Publication 20200185726A1 · Jun 11, 2020