Anode composition, method for preparing anode and lithium ion battery
US-2019181427-A1 · Jun 13, 2019 · US
Method and system for silicon dominant lithium-ion cells with controlled lithiation of silicon
US12183918B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-12183918-B2 |
| Application number | US-201916584574-A |
| Country | US |
| Kind code | B2 |
| Filing date | Sep 26, 2019 |
| Priority date | Dec 7, 2017 |
| Publication date | Dec 31, 2024 |
| Grant date | Dec 31, 2024 |
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Abstract
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Systems and methods for silicon dominant lithium-ion cells with controlled lithiation of silicon may include a cathode, an electrolyte, and an anode. The anode may include silicon lithiated at a level after discharge that is configured to be above a minimum threshold level, where the minimum threshold lithiation is 3% silicon lithiation. The lithiation level of the silicon after charging the battery may range between 30% and 95% silicon lithiation, between 30% and 75% silicon lithiation, between 30% and 65% silicon lithiation, or between 30% and 50% silicon lithiation. The lithiation level of the silicon after discharging the battery may range between 3% and 50% silicon lithiation, between 3% and 30% silicon lithiation, or between 3% and 10% silicon lithiation. The minimum threshold level may be a lithiation level below which a cycle life of the battery degrades. The electrolyte may include a liquid, solid, or gel.
First claim
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The invention claimed is: 1. A battery, the battery comprising: a cathode, an electrolyte, and an anode, the anode comprising silicon lithiated at a level after discharge that is configured to be above a minimum threshold level that is equal to or lower than a prelithiation level of the silicon, wherein the minimum threshold lithiation is 3% silicon lithiation. 2. The battery according to claim 1 , wherein the lithiation level of the silicon after discharge is configured by a discharge voltage of the anode. 3. The battery according to claim 1 , wherein the lithiation level of the silicon after charging the battery ranges between 30% and 95% silicon lithiation. 4. The battery according to claim 1 , wherein the lithiation level of the silicon after charging the battery ranges between 30% and 75% silicon lithiation. 5. The battery according to claim 1 , wherein the lithiation level of the silicon after charging the battery ranges between 30% and 65% silicon lithiation. 6. The battery according to claim 1 , wherein the lithiation level of the silicon after charging the battery ranges between 30% and 50% silicon lithiation. 7. The battery according to claim 1 , wherein the lithiation level of the silicon after discharging the battery ranges between 3% and 50% silicon lithiation. 8. The battery according to claim 1 , wherein the lithiation level of the silicon after discharging the battery ranges between 3% and 30% silicon lithiation. 9. The battery according to claim 1 , wherein the lithiation level of the silicon after discharging the battery ranges between 3% and 10% silicon lithiation. 10. The battery according to claim 1 , wherein the minimum threshold level is a lithiation level below which a cycle life of the battery degrades. 11. The battery according to claim 1 , wherein the electrolyte comprises a liquid, solid, or gel. 12. An anode for use in a cell of a battery, the anode comprising silicon that is lithiated above a minimum threshold level upon discharge of the cell when incorporated in a lithium ion battery, wherein a silicon lithiation level after discharge of the cell is set by a voltage of the anode at a discharge mode of the cell or a prelithiation level of the silicon.
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Classifications
Negative electrodes · CPC title
Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title
Electrodes based on metals, Si or alloys · CPC title
- H01M4/386Primary
Silicon or alloys based on silicon · CPC title
Energy storage using batteries · CPC title
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- What does patent US12183918B2 cover?
- Systems and methods for silicon dominant lithium-ion cells with controlled lithiation of silicon may include a cathode, an electrolyte, and an anode. The anode may include silicon lithiated at a level after discharge that is configured to be above a minimum threshold level, where the minimum threshold lithiation is 3% silicon lithiation. The lithiation level of the silicon after charging the ba…
- Who is the assignee on this patent?
- Enevate Corp
- 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 Tue Dec 31 2024 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). 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).