Energy storage material and method of producing the same
Abstract
The instant invention includes a spherical porous secondary silicon-based particle and methods for producing the same. The spherical porous secondary silicon-based particle is comprised of agglomerated primary silicon-based nanoparticles. The secondary particle comprises a carbon coating that reduces the effective exposed surface area of the primary particles to the electrolyte, thus improving first cycle efficiency. The secondary particle further comprises porous regions that enable the silicon nanoparticles to expand during lithiation. Advantages include ease of castability with micron-sized spherical particles, ease of mixing spherical particles, ease of flow for spherical particles in various processing steps, and ease with obtaining higher loading, which translates to higher areal capacity and overall energy density of the cell. A readily scalable process for producing the particles using low-cost materials and low-cost processing methods is disclosed.
- Inventors:
- Issue Date:
- Research Org.:
- pH Matter, LLC, Columbus, OH (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1987108
- Patent Number(s):
- 11575126
- Application Number:
- 16/411,421
- Assignee:
- pH Matter, LLC (Columbus, OH)
- DOE Contract Number:
- SC0017724
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 05/14/2019
- Country of Publication:
- United States
- Language:
- English
Citation Formats
Holt, Christopher T., Cramer, Mary C., and Matter, Paul H. Energy storage material and method of producing the same. United States: N. p., 2023.
Web.
Holt, Christopher T., Cramer, Mary C., & Matter, Paul H. Energy storage material and method of producing the same. United States.
Holt, Christopher T., Cramer, Mary C., and Matter, Paul H. Tue .
"Energy storage material and method of producing the same". United States. https://www.osti.gov/servlets/purl/1987108.
@article{osti_1987108,
title = {Energy storage material and method of producing the same},
author = {Holt, Christopher T. and Cramer, Mary C. and Matter, Paul H.},
abstractNote = {The instant invention includes a spherical porous secondary silicon-based particle and methods for producing the same. The spherical porous secondary silicon-based particle is comprised of agglomerated primary silicon-based nanoparticles. The secondary particle comprises a carbon coating that reduces the effective exposed surface area of the primary particles to the electrolyte, thus improving first cycle efficiency. The secondary particle further comprises porous regions that enable the silicon nanoparticles to expand during lithiation. Advantages include ease of castability with micron-sized spherical particles, ease of mixing spherical particles, ease of flow for spherical particles in various processing steps, and ease with obtaining higher loading, which translates to higher areal capacity and overall energy density of the cell. A readily scalable process for producing the particles using low-cost materials and low-cost processing methods is disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {2}
}
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