Electrode assembly and electrochemical device including same
US-2024250307-A1 · Jul 25, 2024 · US
Lithium-ion rechargeable battery
US2024097180A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024097180-A1 |
| Application number | US-202318370368-A |
| Country | US |
| Kind code | A1 |
| Filing date | Sep 19, 2023 |
| Priority date | Sep 21, 2022 |
| Publication date | Mar 21, 2024 |
| Grant date | — |
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- Title
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- Abstract
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Abstract
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A lithium-ion rechargeable battery includes a negative electrode plate including a negative electrode substrate and a negative electrode mixture layer applied to the substrate, a positive electrode plate including a positive electrode substrate and a positive electrode mixture layer applied to the substrate, a separator arranged between the negative electrode plate and the positive electrode plate, and a non-aqueous electrolyte. The negative electrode substrate includes a negative electrode connection portion that projects from the negative electrode mixture layer in a first width direction. The positive electrode substrate includes a positive electrode connection portion that projects from the positive electrode mixture layer in a second width direction. The separator has a gas permeability that is greater at a portion facing an end of the positive electrode mixture layer in the second width direction than a portion facing an end of the positive electrode mixture layer in the first width direction.
First claim
Opening claim text (preview).
What is claimed is: 1 . A lithium-ion rechargeable battery, comprising: a negative electrode plate including a negative electrode substrate and a negative electrode mixture layer applied to a surface of the negative electrode substrate; a positive electrode plate including a positive electrode substrate and a positive electrode mixture layer applied to a surface of the positive electrode substrate; a separator arranged between the negative electrode plate and the positive electrode plate; and a non-aqueous electrolyte, wherein the negative electrode substrate includes a negative electrode connection portion that projects from the negative electrode mixture layer in a first width direction and is electrically connected to a negative electrode external terminal, the positive electrode substrate includes a positive electrode connection portion that projects from the positive electrode mixture layer in a second width direction opposite to the first width direction and is electrically connected to a positive electrode external terminal, and the separator has a gas permeability that is greater at a portion facing an end of the positive electrode mixture layer in the second width direction than a portion facing an end of the positive electrode mixture layer in the first width direction. 2 . The lithium-ion rechargeable battery according to claim 1 , wherein the gas permeability of the separator increases in the second width direction. 3 . The lithium-ion rechargeable battery according to claim 2 , wherein the gas permeability of the separator at the end in the second width direction is 105% or greater with respect to the gas permeability at the end in the first width direction.
Assignees
Inventors
Classifications
- H01M10/0525Primary
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
- H01M10/0585Primary
of accumulators having only flat construction elements, i.e. flat positive electrodes, flat negative electrodes and flat separators · CPC title
Porosity · CPC title
Energy storage using batteries · CPC title
U-shaped, bag-shaped or folded · CPC title
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- What does patent US2024097180A1 cover?
- A lithium-ion rechargeable battery includes a negative electrode plate including a negative electrode substrate and a negative electrode mixture layer applied to the substrate, a positive electrode plate including a positive electrode substrate and a positive electrode mixture layer applied to the substrate, a separator arranged between the negative electrode plate and the positive electrode pl…
- Who is the assignee on this patent?
- Primearth Ev Energy Co Ltd, Toyota Motor Co Ltd, Prime Planet Energy & Solutions Inc
- What technology area does this patent fall under?
- Primary CPC classification H01M10/0525. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Mar 21 2024 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).