Chip form ultracapacitor
US-12165808-B2 · Dec 10, 2024 · US
Separator with heat resistant insulation layer
US9543077B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9543077-B2 |
| Application number | US-201214356254-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 9, 2012 |
| Priority date | Nov 10, 2011 |
| Publication date | Jan 10, 2017 |
| Grant date | Jan 10, 2017 |
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- Title
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Abstract
Official abstract text for this publication.
A separator with a heat resistant insulation layer includes a porous substrate, and a heat resistant insulation layer formed on one surface or both surfaces of the porous substrate and containing at least one kind of inorganic particles and at least one kind of a binder, wherein a content mass ratio of the inorganic particles to the binder in the heat resistant insulation layer is in a range from 99:1 to 85:15, a BET specific surface area of the inorganic particles is in a range from 3 m 2 /g to 50 m 2 /g, and a ratio of the moisture content per mass of the binder to the BET specific surface area of the inorganic particles is greater than 0.0001 and smaller than 2.
First claim
Opening claim text (preview).
The invention claimed is: 1. A separator with a heat resistant insulation layer, comprising: a porous substrate; and a heat resistant insulation layer formed on one surface or both surfaces of the porous substrate and containing inorganic particles and a binder, wherein a content mass ratio of the inorganic particles to the binder in the heat resistant insulation layer is in a range from 99:1 to 85:15, a BET specific surface area of the inorganic particles is in a range from 3 m 2 /g to 50 m 2 /g, and a ratio of a moisture content per mass of the binder to the BET specific surface area of the inorganic particles is greater than 0.0001 and smaller than 2. 2. The separator with a heat resistant insulation layer according to claim 1 , wherein the binder is a water-soluble polymer. 3. The separator with a heat resistant insulation layer according to claim 2 , wherein the water-soluble polymer is at least one of carboxymethylcellulose and salt thereof. 4. The separator with a heat resistant insulation layer according to claim 3 , wherein the ratio of the moisture content per mass of the binder to the BET specific surface area of the inorganic particles is in the range from 0.75 to 1.9. 5. The separator with a heat resistant insulation layer according to claim 4 , wherein the ratio of the moisture content per mass of the binder to the BET specific surface area of the inorganic particles is in the range from 1 to 1.8. 6. The separator with a heat resistant insulation layer according to claim 1 , wherein the inorganic particles are at least one material selected from the group consisting of an oxide, a hydroxide and a nitride of silicon, aluminum, zirconium or titanium, and a complex thereof. 7. The separator with a heat resistant insulation layer according to claim 1 , wherein a weight of the heat resistant insulation layer is in a range from 5 g/m 2 to 15 g/m 2 . 8. An electric device using the separator with a heat resistant insulation layer according to claim 1 . 9. The separator with a heat resistant insulation layer according to claim 1 , wherein the ratio of the moisture content per mass of the binder to the BET specific surface area of the inorganic particles is in the range from 0.75 to 1.9. 10. The separator with a heat resistant insulation layer according to claim 9 , wherein the ratio of the moisture content per mass of the binder to the BET specific surface area of the inorganic particles is in the range from 1 to 1.8.
Assignees
Inventors
Classifications
Particulate material · CPC title
comprising three or more layers · CPC title
Particulate layer · CPC title
- H01G11/52Primary
Separators · CPC title
Li-accumulators · CPC title
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Frequently asked questions
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- What does patent US9543077B2 cover?
- A separator with a heat resistant insulation layer includes a porous substrate, and a heat resistant insulation layer formed on one surface or both surfaces of the porous substrate and containing at least one kind of inorganic particles and at least one kind of a binder, wherein a content mass ratio of the inorganic particles to the binder in the heat resistant insulation layer is in a range fr…
- Who is the assignee on this patent?
- Nissan Motor
- What technology area does this patent fall under?
- Primary CPC classification H01G11/52. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 10 2017 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).