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Title: Solvents and slurries comprising a poly(carboxylic acid) binder for silicon electrode manufacture

Abstract

A binder solution for manufacturing silicon-based anodes useful for lithium-ion electrochemical cells is described herein. The binder solution comprises a poly(carboxylic acid) binder dissolved in a mixed solvent system comprising an amide solvent of Formula I, as described herein, and a second solvent which can be water and/or an organic solvent. The binder preferably comprises poly(acrylic acid). The mixed solvent system comprises about 10 to about 99 vol % of the amide solvent of Formula I. The binder solution is utilized as a solvent for a slurry of silicon-containing particles for preparing a silicon-containing electrode. The slurries made with the mixed solvent systems have higher viscosity and are more stable than slurries containing the same concentrations of silicon particle, carbon particles, and binder in water as the sole solvent.

Inventors:
; ; ;
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1986952
Patent Number(s):
11532818
Application Number:
16/886,908
Assignee:
UChicago Argonne, LLC (Chicago, IL)
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Patent
Resource Relation:
Patent File Date: 05/29/2020
Country of Publication:
United States
Language:
English

Citation Formats

Zhang, Lu, Shi, Zhangxing, Jansen, Andrew, and Trask, Stephen. Solvents and slurries comprising a poly(carboxylic acid) binder for silicon electrode manufacture. United States: N. p., 2022. Web.
Zhang, Lu, Shi, Zhangxing, Jansen, Andrew, & Trask, Stephen. Solvents and slurries comprising a poly(carboxylic acid) binder for silicon electrode manufacture. United States.
Zhang, Lu, Shi, Zhangxing, Jansen, Andrew, and Trask, Stephen. Tue . "Solvents and slurries comprising a poly(carboxylic acid) binder for silicon electrode manufacture". United States. https://www.osti.gov/servlets/purl/1986952.
@article{osti_1986952,
title = {Solvents and slurries comprising a poly(carboxylic acid) binder for silicon electrode manufacture},
author = {Zhang, Lu and Shi, Zhangxing and Jansen, Andrew and Trask, Stephen},
abstractNote = {A binder solution for manufacturing silicon-based anodes useful for lithium-ion electrochemical cells is described herein. The binder solution comprises a poly(carboxylic acid) binder dissolved in a mixed solvent system comprising an amide solvent of Formula I, as described herein, and a second solvent which can be water and/or an organic solvent. The binder preferably comprises poly(acrylic acid). The mixed solvent system comprises about 10 to about 99 vol % of the amide solvent of Formula I. The binder solution is utilized as a solvent for a slurry of silicon-containing particles for preparing a silicon-containing electrode. The slurries made with the mixed solvent systems have higher viscosity and are more stable than slurries containing the same concentrations of silicon particle, carbon particles, and binder in water as the sole solvent.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 20 00:00:00 EST 2022},
month = {Tue Dec 20 00:00:00 EST 2022}
}

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