Composite particle
US-2015140423-A1 · May 21, 2015 · US
Separator for non-aqueous secondary battery and non-aqueous secondary battery
US2018331342A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018331342-A1 |
| Application number | US-201615774723-A |
| Country | US |
| Kind code | A1 |
| Filing date | Nov 8, 2016 |
| Priority date | Nov 11, 2015 |
| Publication date | Nov 15, 2018 |
| 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 separator for a non-aqueous secondary battery, containing a porous substrate, and an adhesive porous layer that is provided on one side or both sides of the porous substrate, in which the adhesive porous layer contains a polyvinylidene fluoride type resin including a vinylidene fluoride monomer unit and a hexafluoropropylene monomer unit, and the polyvinylidene fluoride type resin has an acid value of from 3.0 mgKOH/g to 20 mgKOH/g.
First claim
Opening claim text (preview).
1 . A separator for a non-aqueous secondary battery, comprising: a porous substrate; and an adhesive porous layer that is provided on one side or both sides of the porous substrate, wherein the adhesive porous layer contains a polyvinylidene fluoride type resin including a vinylidene fluoride monomer unit and a hexafluoropropylene monomer unit, and the polyvinylidene fluoride type resin has an acid value of from 3.0 mgKOH/g to 20 mgKOH/g. 2 . The separator for a non-aqueous secondary battery according to claim 1 , wherein the polyvinylidene fluoride type resin contains the hexafluoropropylene monomer unit in a range of from 0.1 mol % to 10 mol % with respect to a total amount of the vinylidene fluoride monomer unit and the hexafluoropropylene monomer unit. 3 . The separator for a non-aqueous secondary battery according to claim 1 , wherein a weight-average molecular weight of the polyvinylidene fluoride type resin is from 300,000 to 3,000,000. 4 . The separator for a non-aqueous secondary battery according to claim 1 , wherein the adhesive porous layer further contains a filler. 5 . A non-aqueous secondary battery, comprising: a positive electrode, a negative electrode, and the separator for a non-aqueous secondary battery according to claim 1 , disposed between the positive electrode and the negative electrode, wherein an electromotive force is obtained by lithium doping and dedoping.
Assignees
Inventors
Classifications
- H01M10/05Primary
Accumulators with non-aqueous electrolyte (H01M10/39 takes precedence) · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Particulate material · CPC title
Separators, membranes, diaphragms or spacing elements inside the cells, characterised by their physical properties, e.g. swelling degree, hydrophilicity or shut down properties · CPC title
- H01M50/426Primary
Fluorocarbon polymers · 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 US2018331342A1 cover?
- A separator for a non-aqueous secondary battery, containing a porous substrate, and an adhesive porous layer that is provided on one side or both sides of the porous substrate, in which the adhesive porous layer contains a polyvinylidene fluoride type resin including a vinylidene fluoride monomer unit and a hexafluoropropylene monomer unit, and the polyvinylidene fluoride type resin has an acid…
- Who is the assignee on this patent?
- Teijin Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/05. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Nov 15 2018 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).