Electrodes, lithium-ion batteries, and methods of making and using same
US-2022166011-A1 · May 26, 2022 · US
Electrodes, lithium-ion batteries, and methods of making and using same
US11557757B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11557757-B2 |
| Application number | US-202016853301-A |
| Country | US |
| Kind code | B2 |
| Filing date | Apr 20, 2020 |
| Priority date | Sep 29, 2009 |
| Publication date | Jan 17, 2023 |
| Grant date | Jan 17, 2023 |
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Abstract
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Described herein are improved composite anodes and lithium-ion batteries made therefrom. Further described are methods of making and using the improved anodes and batteries. In general, the anodes include a porous composite having a plurality of agglomerated nanocomposites. At least one of the plurality of agglomerated nanocomposites is formed from a dendritic particle, which is a three-dimensional, randomly-ordered assembly of nanoparticles of an electrically conducting material and a plurality of discrete non-porous nanoparticles of a non-carbon Group 4A element or mixture thereof disposed on a surface of the dendritic particle. At least one nanocomposite of the plurality of agglomerated nanocomposites has at least a portion of its dendritic particle in electrical communication with at least a portion of a dendritic particle of an adjacent nanocomposite in the plurality of agglomerated nanocomposites.
First claim
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What is claimed is: 1. A battery electrode composite particle, comprising: a matrix having a three-dimensional structure comprising pores; and a non-carbon Group 4A element or mixture thereof at least partially disposed within the pores, wherein the matrix includes a volume to accommodate expansion of the non-carbon Group 4A element or mixture thereof during battery operation, and wherein the battery electrode composite particle is at least partially coated with a material to inhibit access of electrolyte solvent to at least a portion of the non-carbon Group 4A element or mixture thereof. 2. The battery electrode composite particle of claim 1 , wherein the volume is not occupied by the non-carbon Group 4A element or mixture thereof. 3. The battery electrode composite particle of claim 1 , wherein the volume of the matrix that accommodates the expansion of the non-carbon Group 4A element or mixture thereof during battery operation is defined by the pores of the matrix.
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- What does patent US11557757B2 cover?
- Described herein are improved composite anodes and lithium-ion batteries made therefrom. Further described are methods of making and using the improved anodes and batteries. In general, the anodes include a porous composite having a plurality of agglomerated nanocomposites. At least one of the plurality of agglomerated nanocomposites is formed from a dendritic particle, which is a three-dimensi…
- Who is the assignee on this patent?
- Sila Nanotechnologies Inc, Georgia Tech Res Inst
- What technology area does this patent fall under?
- Primary CPC classification H01M4/366. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jan 17 2023 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 9 related publications on this page (citations in our corpus or others sharing the same primary CPC).