# US 2021/0344003 A1 · Scaffolding matrix with internal nanoparticles

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- Number: US 2021/0344003 A1
- Document ID: US20210344003A1
- Status: Published application
- Kind: A1
- Application number: 17/353,364
- Filed: 2021-06-21
- Published: 2021-11-04
- Earliest claimed: 2012-08-24
- Assignees: Sila Nanotechnologies, Inc.
- Applicants: Sila Nanotechnologies Inc.
- Inventors: Gleb YUSHIN; Bogdan ZDYRKO; Addison SHELTON; Eugene BERDICHEVSKY; Igor LUZINOV; Alexander JACOBS; Eerik HANTSOO; George GOMES
- Web page: https://patentgrep.com/patent/US20210344003A1

## CPC

- H01M 4/364: {as mixtures}
- H01M 4/0402: {Methods of deposition of the material}
- H01M 4/13: Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M 4/139: Processes of manufacture
- H01M 4/366: {as layered products}
- H01M 4/624: {Electric conductive fillers}
- H01M 4/625: {Carbon or graphite}
- H01M 4/38: of elements or alloys
- H01M 4/48: of inorganic oxides or hydroxides
- H01M 10/052: Li-accumulators
- H01M 10/054: Accumulators with insertion or intercalation of metals other than lithium, e.g. with magnesium or aluminium
- Y02E 60/10: Energy storage using batteries
- H01M: PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A battery electrode composition is provided comprising composite particles, with each composite particle comprising active material and a scaffolding matrix. The active material is provided to store and release ions during battery operation. For certain active materials of interest, the storing and releasing of the ions causes a substantial change in volume of the active material. The scaffolding matrix is provided as a porous, electrically-conductive scaffolding matrix within which the active material is disposed. In this way, the scaffolding matrix structurally supports the active material, electrically interconnects the active material, and accommodates the changes in volume of the active material.

## Claims

### Claim 1

A battery electrode composition comprising composite particles, each composite particle comprising:
active material provided to electrochemically react with ions during battery operation; and
a porous, electrically-conductive scaffolding matrix within which the active material is disposed,
wherein the scaffolding matrix is a monolithic particle that electrically interconnects the active material.