Liquid Electrolyte Composition, and Electrochemical Cell Comprising Said Electrolyte Composition
US-2024347772-A1 · Oct 17, 2024 · US
Film-covered battery
US9871231B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9871231-B2 |
| Application number | US-201314411237-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 17, 2013 |
| Priority date | Jun 18, 2012 |
| Publication date | Jan 16, 2018 |
| Grant date | Jan 16, 2018 |
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 film-covered battery houses, in a film covering material 4 obtained by stacking a heat sealing layer 13 , a barrier layer 12 , and a protective layer 11 , a battery element 6 obtained by arranging positive and negative electrodes through separators and has a sealing portion that seals a periphery of the film covering material 4 housing the battery element 6 . The sealing portion 18 includes an agglomeration/sealing portion 19 and a first interface bonding portion 15 provided so as to be adjacent to the battery element housing portion side of the agglomeration/sealing portion.
First claim
Opening claim text (preview).
The invention claimed is: 1. A film-covered battery that houses, in a film covering material obtained by stacking a heat sealing layer, a barrier layer, and a protective layer, a battery element obtained by arranging positive and negative electrodes through separators and that has a sealing portion that seals a periphery of the film covering material housing the battery element, characterized in that the sealing portion includes: an agglomeration/sealing portion, formed of two unified heat sealing layers that do not have a boundary therebetween; and a first interface bonding portion having a boundary surface between the heat sealing layers, the first interface bonding portion being adjacent to the battery element housing portion side of the agglomeration/sealing portion. 2. The film-covered battery according to claim 1 , characterized in that a curved portion is formed in at least a part of the bonding boundary of the first interface bonding portion. 3. The film-covered battery according to claim 1 , characterized in that a resin mass is formed in the vicinity of a part of the sealing portion on the battery element housing portion side. 4. The film-covered battery according to claim 3 , characterized in that the resin mass and sealing portion are integrally formed with each other or disposed adjacent to each other. 5. The film-covered battery according to claim 3 , characterized in that a second interface bonding portion having a boundary surface between the two heat sealing layers is formed inside the resin mass. 6. The film-covered battery according to claim 5 , characterized in that a curved portion is formed in the second interface bonding portion. 7. The film-covered battery according to claim 5 , characterized in that the first interface bonding portion and second interface bonding portion are continuously formed. 8. The film-covered battery according to claim 5 , characterized in that the resin mass is integrally formed with and at a part of the interface bonding portion on the battery element housing portion side.
Assignees
Inventors
Classifications
- H01M10/0525Primary
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Batteries in portable systems, e.g. mobile phone, laptop · CPC title
including laminating of indefinite length material · CPC title
Batteries in motive systems, e.g. vehicle, ship, plane · CPC title
characterised by physical properties, e.g. gas permeability, size or heat resistance · 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 US9871231B2 cover?
- A film-covered battery houses, in a film covering material 4 obtained by stacking a heat sealing layer 13 , a barrier layer 12 , and a protective layer 11 , a battery element 6 obtained by arranging positive and negative electrodes through separators and has a sealing portion that seals a periphery of the film covering material 4 housing the battery element 6 . The sealing portion 18…
- Who is the assignee on this patent?
- Nec Energy Devices Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0525. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 16 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).