Chip form ultracapacitor
US-12165808-B2 · Dec 10, 2024 · US
Separator with heat resistant insulation layer
US9496535B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9496535-B2 |
| Application number | US-201214349006-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 28, 2012 |
| Priority date | Oct 4, 2011 |
| Publication date | Nov 15, 2016 |
| Grant date | Nov 15, 2016 |
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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 layer and a heat resistant insulation layer formed on one surface or both surfaces of the porous substrate layer and containing inorganic particles and a binder. The ratio of tensile strength in MD direction×fracture strain in MD direction to the tensile strength in TD direction×fracture strain in RD direction is in a range from 0.3 to 20. A ratio of the unit mass of the heat resistant insulation layer to the unit mass of the porous substrate layer is in a range from 0.5 to 2.5. Accordingly, the separator with a heat resistant insulation layer can have improved resistance to an internal short-circuit (shorting resistance).
First claim
Opening claim text (preview).
The invention claimed is: 1. A separator with a heat resistant insulation layer consisting of: a porous substrate layer; and a heat resistant insulation layer placed on both surfaces of the porous substrate layer and containing inorganic particles and a binder, wherein the separator has R in a range from 0.3 to 20 and a ratio of a unit mass of the heat resistant insulation layer to a unit mass of the porous substrate layer is in a range from 0.5 to 2.5, and wherein R is defined as: R = Tensile Strength in MD Direction × Fracture Strain in MD Direction Tensile Strength in TD Direction × Fracture Strain in TD Direction . 2. The separator with the heat resistant insulation layer according to claim 1 , wherein R is in the range from 0.5 to 10, and the ratio of the unit mass of the heat resistant insulation layer to the unit mass of the porous substrate layer is in the range from 0.7 to 2.2. 3. The separator with the heat resistant insulation layer according to claim 1 , wherein R is in the range from 0.7 to 5, and the ratio of the unit mass of the heat resistant insulation layer to the unit mass of the porous substrate layer is in the range from 0.9 to 1.3. 4. The separator with the heat resistant insulation layer according to claim 1 , wherein the porous substrate layer contains resin having a melting temperature in a range from 120° C. to 200° C. 5. The separator with the heat resistant insulation layer according to claim 1 , wherein the inorganic particles contain at least one material selected from the group consisting of an oxide, a nitride and a hydroxide of silicon, aluminum, zirconium or titanium, and a complex of the oxide, the hydroxide and the nitride. 6. The separator with the heat resistant insulation layer according to claim 1 , wherein the porous substrate layer contains at least one material selected from the group consisting of polyethylene, polypropylene, and an ethylene-propylene copolymer. 7. The separator with a heat resistant insulation layer according to claim 1 , wherein the porous substrate layer contains a microporous film. 8. The separator with a heat resistant insulation layer according to claim 1 , wherein a content of the binder in the heat resistant insulation layer is in a range from 2% by mass to 20% by mass with respect to 100% by mass of the heat resistant insulation layer. 9. A separator with a heat resistant insulation layer consisting of: a porous substrate layer; and a heat resistant insulation layer placed on only one surface of the porous substrate layer and containing inorganic particles and a binder, wherein the separator has R in a range from 0.3 to 20, and a ratio of an unit mass of the heat resistant insulation layer to an unit mass of the porous substrate layer is in a range from 0.5 to 2.5, and R is defined as: R = Tensile Strength in MD Direction ×
Assignees
Inventors
Classifications
- H01G11/52Primary
Separators · CPC title
comprising layers of only organic material and layers containing inorganic material · CPC title
Tensile strength · CPC title
Polyamide resins · CPC title
Acrylic resins · CPC title
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Frequently asked questions
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- What does patent US9496535B2 cover?
- A separator with a heat resistant insulation layer includes a porous substrate layer and a heat resistant insulation layer formed on one surface or both surfaces of the porous substrate layer and containing inorganic particles and a binder. The ratio of tensile strength in MD direction×fracture strain in MD direction to the tensile strength in TD direction×fracture strain in RD direction is in …
- 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 Nov 15 2016 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).