Lithium ion secondary battery
US-2022328862-A1 · Oct 13, 2022 · US
All-solid-state battery
US12355033B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12355033-B2 |
| Application number | US-202117376956-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 15, 2021 |
| Priority date | Aug 21, 2020 |
| Publication date | Jul 8, 2025 |
| Grant date | Jul 8, 2025 |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
An all-solid-state battery includes a solid electrode body including a positive electrode layer, a solid electrolyte layer, and a negative electrode layer, and a laminate film that stores the solid electrode body. The laminate film has a fragile part with respect to a needle-like foreign substance. The strength of the fragile part is lower than the strength of a part of the laminate film other than the fragile part.
First claim
Opening claim text (preview).
What is claimed is: 1. An all-solid-state battery, comprising: a solid electrode body including a positive electrode layer, a solid electrolyte layer, and a negative electrode layer; and a laminate film that accommodates the solid electrode body, the laminate film has a fragile part, wherein a strength of the fragile part is lower than a strength of a part of the laminate film other than the fragile part, wherein the laminate film includes a metal foil and a resin film, wherein the resin film includes a first resin film which directly contacts an exterior surface of the metal foil and a second resin film which directly contacts an interior surface of the metal foil, and the metal foil has at least one through-hole, wherein only the resin film is present in a part in which the at least one through-hole is provided, wherein the first resin film has a thin portion and a thick portion which have different thicknesses from each other, and the resin film has a thick-wall part and a thin-wall part corresponding to the thin portion and the thick portion of the first resin film, wherein the fragile part includes the part in which the at least one through-hole is provided combined with the thin-wall part along the laminate film. 2. The all-solid-state battery according to claim 1 , wherein the at least one through-hole is a plurality of through-holes, and wherein the metal foil is any of a punching metal, an expand metal, and a lath metal. 3. The all-solid-state battery according to claim 1 , wherein the laminate film seals and accommodates the solid electrode body.
Assignees
Inventors
Classifications
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
inorganic · CPC title
Solid materials · CPC title
Pouches or flexible bags · CPC title
with two or more layers of only organic material · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US12355033B2 cover?
- An all-solid-state battery includes a solid electrode body including a positive electrode layer, a solid electrolyte layer, and a negative electrode layer, and a laminate film that stores the solid electrode body. The laminate film has a fragile part with respect to a needle-like foreign substance. The strength of the fragile part is lower than the strength of a part of the laminate film other …
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0585. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jul 08 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 5 related publications on this page (citations in our corpus or others sharing the same primary CPC).