Separator for secondary battery, manufacturing method thereof, method for manufacturing secondary battery comprising the separator and secondary battery manufactured by the method
US-12183949-B2 · Dec 31, 2024 · US
Secondary battery
US2025118802A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2025118802-A1 |
| Application number | US-202418981953-A |
| Country | US |
| Kind code | A1 |
| Filing date | Dec 16, 2024 |
| Priority date | Sep 19, 2014 |
| Publication date | Apr 10, 2025 |
| Grant date | — |
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.
A gel electrolyte and a separator are provided between the positive electrode current collector and the negative electrode current collector. The plurality of positive electrode current collectors and the plurality of negative electrode current collectors are stacked such that surfaces of negative electrodes with which active material layers are not coated or surfaces of positive electrodes with which active material layers are not coated are in contact with each other.
First claim
Opening claim text (preview).
1 . A secondary battery comprising: a first positive electrode current collector; a first negative electrode current collector; a second negative electrode current collector; and a second positive electrode current collector, wherein the first positive electrode current collector, the first negative electrode current collector, the second negative electrode current collector, and the second positive electrode current collector overlap one another, wherein the first positive electrode current collector comprises a first surface and a second surface opposite to the first surface, wherein the first negative electrode current collector comprises a third surface and a fourth surface opposite to the third surface, wherein the second negative electrode current collector comprises a fifth surface and a sixth surface opposite to the fifth surface, wherein the second positive electrode current collector comprises a seventh surface and an eighth surface opposite to the seventh surface, wherein the third surface faces the second surface, wherein the fourth surface faces the fifth surface, wherein the sixth surface faces the seventh surface, wherein each of the first surface and the second surface is covered with a positive electrode active material layer, wherein the third surface is covered with a negative electrode active material layer while the fourth surface is exposed, wherein the sixth surface is covered with a negative electrode active material layer while the fifth surface is exposed, and wherein each of the seventh surface and the eighth surface is covered with a positive electrode active material layer, wherein the secondary battery is configured to be curved, and wherein a static friction coefficient between the fourth surface and the fifth surface is less than or equal to 0.80.
Assignees
Inventors
Classifications
characterised by shape or form · CPC title
having a layered structure · CPC title
Composite material consisting of a mixture of organic and inorganic materials · CPC title
Organic material · CPC title
Metals · 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 US2025118802A1 cover?
- A gel electrolyte and a separator are provided between the positive electrode current collector and the negative electrode current collector. The plurality of positive electrode current collectors and the plurality of negative electrode current collectors are stacked such that surfaces of negative electrodes with which active material layers are not coated or surfaces of positive electrodes wit…
- Who is the assignee on this patent?
- Semiconductor Energy Lab
- 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 Thu Apr 10 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).