Method for manufacturing aluminum plate and apparatus for manufacturing aluminum plate
US-2019003073-A1 · Jan 3, 2019 · US
Aluminum foil and aluminum member for electrodes
US11527758B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11527758-B2 |
| Application number | US-202016848949-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 15, 2020 |
| Priority date | Oct 16, 2017 |
| Publication date | Dec 13, 2022 |
| Grant date | Dec 13, 2022 |
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Abstract
Official abstract text for this publication.
An object of the present invention is to provide an aluminum foil and an aluminum member for electrodes having good adhesiveness to an electrode material and high conductivity with the electrode material. Provided is an aluminum foil having through holes including an aluminum oxide film having a thickness of 25 nm or less on a surface of the aluminum foil, and further a hydrophilic layer on a part of a surface of the aluminum oxide film.
First claim
Opening claim text (preview).
What is claimed is: 1. An aluminum foil having through holes comprising: an aluminum oxide film having a thickness of 25 nm or less on a surface of the aluminum foil; and further a hydrophilic layer on at least a part of a surface of the aluminum oxide film, wherein the hydrophilic layer contains a compound having at least one structure selected from the group consisting of silicate, phosphate, sulfonic acid, sulfonate, phosphonic acid, phosphonate, phosphate ester, phosphate ester salt, and fluorinated zirconic acid. 2. The aluminum foil according to claim 1 , wherein the aluminum oxide film has a density of 2.7 to 4.1 g/cm 3 . 3. The aluminum foil according to claim 2 , wherein the aluminum oxide film having a thickness of 25 nm or less contains at least one of aluminum oxide, aluminum oxide monohydrate, or aluminum oxide trihydrate. 4. The aluminum foil according to claim 3 , wherein the aluminum oxide film has a thickness of 1 nm to 15 nm. 5. The aluminum foil according to claim 4 , wherein an average opening diameter of the through holes is 1 μm to 500 μm. 6. The aluminum foil according to claim 5 , wherein a hole density of the through holes is 1 to 1000 holes/mm 2 . 7. The aluminum foil according to claim 6 , wherein the aluminum foil has a thickness of 5 μm to 100 μm. 8. The aluminum foil according to claim 7 , wherein the aluminum oxide film is provided on both surfaces of the aluminum foil, and further the hydrophilic layer is provided on at least a part of the surface of each of the aluminum oxide films on the both surfaces. 9. An aluminum member for electrodes comprising the aluminum foil according to claim 7 . 10. The aluminum foil according to claim 1 , wherein the aluminum oxide film having a thickness of 25 nm or less contains at least one of aluminum oxide, aluminum oxide monohydrate, or aluminum oxide trihydrate. 11. The aluminum foil according to claim 1 , wherein the aluminum oxide film has a thickness of 1 nm to 15 nm. 12. The aluminum foil according to claim 1 , wherein an average opening diameter of the through holes is 1 μm to 500 μm. 13. The aluminum foil according to claim 1 , wherein a hole density of the through holes is 1 to 1000 holes/mm 2 . 14. The aluminum foil according to claim 1 , wherein the aluminum foil has a thickness of 5 μm to 100 μm. 15. The aluminum foil according to claim 1 , wherein the aluminum oxide film is provided on both surfaces of the aluminum foil, and further the hydrophilic layer is provided on at least a part of the surface of each of the aluminum oxide films on the both surfaces. 16. An aluminum member for electrodes comprising the aluminum foil according to claim 1 .
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Classifications
Energy storage using batteries · CPC title
in the form of layers, e.g. coatings · CPC title
characterised by shape or form · CPC title
characterised by their structure, e.g. multi-layered, porosity or surface features · CPC title
characterised by their structure · CPC title
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- What does patent US11527758B2 cover?
- An object of the present invention is to provide an aluminum foil and an aluminum member for electrodes having good adhesiveness to an electrode material and high conductivity with the electrode material. Provided is an aluminum foil having through holes including an aluminum oxide film having a thickness of 25 nm or less on a surface of the aluminum foil, and further a hydrophilic layer on a p…
- Who is the assignee on this patent?
- Fujifilm Corp
- What technology area does this patent fall under?
- Primary CPC classification H01M4/661. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Dec 13 2022 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 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).