Positive electrode, secondary battery including the same, and method for manufacturing the positive electrode
US-2020044257-A1 · Feb 6, 2020 · US
All-solid-state battery and method for manufacturing the same
US2020280102A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2020280102-A1 |
| Application number | US-202016792990-A |
| Country | US |
| Kind code | A1 |
| Filing date | Feb 18, 2020 |
| Priority date | Mar 1, 2019 |
| Publication date | Sep 3, 2020 |
| Grant date | — |
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- Title
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Abstract
Official abstract text for this publication.
An all-solid-state battery includes two or more stacked battery units stacked together and having a monopolar structure. The stacked battery unit includes a first current collector layer, a first active substance layer, a solid electrolyte layer, a second active substance layer, a second current collector layer, a second active substance layer, a solid electrolyte layer, a first active substance layer, and a first current collector layer, which are stacked in this order. The first current collector layer and the first active substance layer that are stacked adjacently are bonded together with an adhesive.
First claim
Opening claim text (preview).
What is claimed is: 1 . An all-solid-state battery, comprising two or more stacked battery units having a monopolar structure, wherein each of the stacked battery units includes a first current collector layer, a first active substance layer, a solid electrolyte layer, a second active substance layer, a second current collector layer, a second active substance layer, a solid electrolyte layer, a first active substance layer, and a first current collector layer, which are stacked in this order, and the first current collector layer and the first active substance layer that are stacked adjacently are bonded together with an adhesive. 2 . The all-solid-state battery according to claim 1 , wherein the all-solid-state battery is bound at a binding pressure of 1.0 MPa or lower in a stacking direction of the stacked battery units. 3 . The all-solid-state battery according to claim 1 , wherein conductive carbon is coated on one side of the first current collector layer or both sides of the first current collector layer. 4 . The all-solid-state battery according to claim 1 , wherein, in at least one of the two or more stacked battery units, a difference between a maximum value and a minimum value of a thickness of a stacked body excluding the first current collector layers from the stacked battery unit is 10 μm or more. 5 . A method for manufacturing an all-solid-state battery including two or more stacked battery units having a monopolar structure, each of the stacked battery units including a first current collector layer, a first active substance layer, a solid electrolyte layer, a second active substance layer, a second current collector layer, a second active substance layer, a solid electrolyte layer, a first active substance layer, and a first current collector layer, which are stacked in this order, the method comprising: (a) providing a stacked body excluding the first current collector layers from each of the stacked battery units; (b) obtaining each of the stacked battery units by bonding the first current collector layers to respective end faces of the stacked body in its stacking direction with adhesives; and (c) stacking the two or more stacked battery units together. 6 . The method according to claim 5 , further comprising binding the all-solid-state battery at a binding pressure of 1.0 MPa or lower in a stacking direction of the stacked battery units. 7 . The method according to claim 5 , wherein conductive carbon is coated on one side of the first current collector layer or both sides of the first current collector layer. 8 . The method according to claim 5 , wherein, in at least one of the two or more stacked battery units, a difference between a maximum value and a minimum value of a thickness of the stacked body is 10 μm or more.
Assignees
Inventors
Classifications
- H01M10/0585Primary
of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators · CPC title
- H01M10/0562Primary
Solid materials · CPC title
Polymeric materials, e.g. gel-type or solid-type · CPC title
Manufacturing or production processes characterised by the final manufactured product · CPC title
containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres · CPC title
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Frequently asked questions
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- What does patent US2020280102A1 cover?
- An all-solid-state battery includes two or more stacked battery units stacked together and having a monopolar structure. The stacked battery unit includes a first current collector layer, a first active substance layer, a solid electrolyte layer, a second active substance layer, a second current collector layer, a second active substance layer, a solid electrolyte layer, a first active substanc…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0585. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Sep 03 2020 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).