Method for manufacturing non-aqueous secondary battery electrode
US-2024332484-A1 · Oct 3, 2024 · US
All-solid-state battery production method and all-solid-state battery
US2022223908A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022223908-A1 |
| Application number | US-202217685828-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 3, 2022 |
| Priority date | Mar 22, 2019 |
| Publication date | Jul 14, 2022 |
| Grant date | — |
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Abstract
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To provide a method for production of an all-solid-state battery in which cracking of the ends of the electrodes can be suppressed even if a negative electrode active material layer including lithium-titanium oxide is roll-pressed, provided is a method for the production of an all-solid-state battery, including roll-pressing to consolidate a negative electrode active material layer; wherein the all-solid-state battery has a structure including a laminate of a positive electrode current collector layer, a positive electrode active material layer, a solid electrolyte layer, the negative electrode active material layer, and a negative electrode current collector layer in this order, the negative electrode active material layer includes a lithium-titanium oxide as a negative electrode active material, and prior to the roll-pressing, a stress relaxation rate of the negative electrode active material layer is 32.5% or more.
First claim
Opening claim text (preview).
1 . An all-solid-state battery, having a structure comprising a laminate of a positive electrode current collector layer, a positive electrode active material layer, a solid electrolyte layer, a negative electrode active material layer, and a negative electrode current collector layer in this order; wherein the negative electrode active material layer includes a lithium-titanium oxide as a negative electrode active material; and the negative electrode active material layer includes VGCF in only ends in a direction perpendicular to the lamination direction.
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Classifications
Manufacturing or production processes characterised by the final manufactured product · CPC title
Energy storage using batteries · CPC title
- H01M4/0435Primary
Rolling or calendering · CPC title
Negative electrodes · CPC title
Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx · CPC title
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- What does patent US2022223908A1 cover?
- To provide a method for production of an all-solid-state battery in which cracking of the ends of the electrodes can be suppressed even if a negative electrode active material layer including lithium-titanium oxide is roll-pressed, provided is a method for the production of an all-solid-state battery, including roll-pressing to consolidate a negative electrode active material layer; wherein the…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/0435. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Jul 14 2022 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).