All-solid-state battery and method for producing the same
US-2017358816-A1 · Dec 14, 2017 · US
Electrode current collector, all solid state battery, and method for producing electrode current collector
US2019245210A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2019245210-A1 |
| Application number | US-201916260467-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jan 29, 2019 |
| Priority date | Feb 5, 2018 |
| Publication date | Aug 8, 2019 |
| Grant date | — |
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Abstract
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A main object of the present disclosure is to provide an electrode current collector in which the peel-off of a coating layer and an aluminum oxide layer is inhibited. The present disclosure achieves the object by providing an electrode current collector to be used in an all solid state battery, the electrode current collector comprising: a current collecting layer, an aluminum oxide layer, and a coating layer containing a conductive material, a resin, and an inorganic filler, in this order; and the current collecting layer has a porous structure on a surface of the aluminum oxide layer side.
First claim
Opening claim text (preview).
What is claimed is: 1 . An electrode current collector to be used in an all solid state battery, the electrode current collector comprising: a current collecting layer, an aluminum oxide layer, and a coating layer containing a conductive material, a resin, and an inorganic filler, in this order; and the current collecting layer has a porous structure on a surface of the aluminum oxide layer side. 2 . An electrode current collector to be used in an all solid state battery, the electrode current collector comprising: a current collecting layer, an aluminum oxide layer, and a coating layer containing a conductive material, a resin, and an inorganic filler, in this order; and a surface roughness Ra in the aluminum oxide layer side of the current collecting layer is 0.8 μm or more. 3 . The electrode current collector according to claim 1 , wherein the aluminum oxide layer includes an opening, and the current collecting layer and the coating layer contact with each other in the opening. 4 . The electrode current collector according to claim 1 , wherein a thickness of the aluminum oxide layer is in a range of 10 nm to 1000 nm. 5 . The electrode current collector according to claim 1 , wherein the current collecting layer contains an Al element. 6 . An all solid state battery comprising a cathode current collector, a cathode active material layer, a solid electrolyte layer, an anode active material layer, and an anode current collector in this order, wherein at least one of the cathode current collector and the anode current collector is the electrode current collector according to claim 1 . 7 . A method for producing an electrode current collector to be used in an all solid state battery, the method comprising: an aluminum oxide layer forming step of forming an aluminum oxide layer on one surface side of a current collecting layer; and a coating layer forming step of forming a coating layer containing a conductive material, a resin, and an inorganic filler, on one surface side of the aluminum oxide layer; and the current collecting layer has a porous structure on a surface of the aluminum oxide layer side. 8 . A method for producing an electrode current collector to be used in an all solid state battery, the method comprising: an aluminum oxide layer forming step of forming an aluminum oxide layer on one surface side of a current collecting layer; and a coating layer forming step of forming a coating layer containing a conductive material, a resin, and an inorganic filler, on one surface side of the aluminum oxide layer; and a surface roughness Ra in the aluminum oxide layer side of the current collecting layer is 0.8 μm or more. 9 . The method for producing an electrode current collector according to claim 7 , further comprising a roughing treatment step of roughing a surface of the current collecting layer before the aluminum oxide layer forming step. 10 . The method for producing an electrode current collector according to claim 7 , wherein the current collecting layer contains an Al element; and the aluminum oxide layer is formed by a boehmite treatment in the aluminum oxide layer forming step.
Assignees
Inventors
Classifications
- H01M4/667Primary
in the form of layers, e.g. coatings · CPC title
by coating on electrode collectors · CPC title
Porous plates, e.g. sintered carriers · CPC title
Solid materials · CPC title
Composites of electroconductive material and synthetic resins · CPC title
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Frequently asked questions
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- What does patent US2019245210A1 cover?
- A main object of the present disclosure is to provide an electrode current collector in which the peel-off of a coating layer and an aluminum oxide layer is inhibited. The present disclosure achieves the object by providing an electrode current collector to be used in an all solid state battery, the electrode current collector comprising: a current collecting layer, an aluminum oxide layer, and…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/667. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Aug 08 2019 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 4 related publications on this page (citations in our corpus or others sharing the same primary CPC).