Polyimide-based binder for power storage device, electrode mixture paste, negative electrode active material layer, negative electrode sheet for power storage device, and power storage device
US-12176543-B2 · Dec 24, 2024 · US
Active material for lithium-ion batteries and lithium-ion battery
US2024387807A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2024387807-A1 |
| Application number | US-202418613922-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 22, 2024 |
| Priority date | May 16, 2023 |
| Publication date | Nov 21, 2024 |
| Grant date | — |
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- Title
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Abstract
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The present disclosure provides an active material for lithium-ion batteries, having low expansion during initial charging and a high non-expansion region retention rate even with repeated charging-discharging, and a lithium-ion battery comprising such an active material for batteries. The active material for lithium-ion batteries of the present disclosure comprises silicon clathrate comprising type I silicon clathrate and type II silicon clathrate. In the active material for lithium-ion batteries, a ratio of a content ratio of the type I silicon clathrate relative to a content ratio of the type II silicon clathrate is 0.01% or greater and 53% or less. The lithium-ion battery of the present disclosure comprises a negative electrode active material layer, and the negative electrode active material layer comprises the active material for lithium-ion batteries of the present disclosure.
First claim
Opening claim text (preview).
1 . An active material for lithium-ion batteries, comprising silicon clathrate comprising type I silicon clathrate and type II silicon clathrate, wherein a ratio of a content ratio of the type I silicon clathrate relative to a content ratio of the type II silicon clathrate is 0.01% or greater and 53% or less. 2 . The active material for lithium-ion batteries according to claim 1 , wherein the ratio is 0.1% or greater and 15% or less. 3 . The active material for lithium-ion batteries according to claim 1 , wherein a ratio of a mass of the type I silicon clathrate relative to a total mass of all components contained in the active material is 0.01% by mass or greater and 33% by mass or less. 4 . The active material for lithium-ion batteries according to claim 1 , wherein the type I silicon clathrate and/or type II silicon clathrate is porous silicon clathrate. 5 . A lithium-ion battery, comprising a negative electrode active material layer, wherein the negative electrode active material layer comprises the active material for lithium-ion batteries according to claim 1 .
Assignees
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Classifications
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
- H01M4/386Primary
Silicon or alloys based on silicon · CPC title
Energy storage using batteries · CPC title
Negative electrodes · CPC title
as mixtures · CPC title
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Frequently asked questions
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- What does patent US2024387807A1 cover?
- The present disclosure provides an active material for lithium-ion batteries, having low expansion during initial charging and a high non-expansion region retention rate even with repeated charging-discharging, and a lithium-ion battery comprising such an active material for batteries. The active material for lithium-ion batteries of the present disclosure comprises silicon clathrate comprising…
- Who is the assignee on this patent?
- Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H01M4/386. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Thu Nov 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).