Viscosity Analysis of Battery Electrode Slurry

Cushing, Alex; Zheng, Tianyue; Higa, Kenneth; Liu, Gao

doi:10.3390/polym13224033

Title: Viscosity Analysis of Battery Electrode Slurry

Journal Article · 21 November 2021 · Polymers

DOI: https://doi.org/10.3390/polym13224033 · OSTI ID:1832045

Cushing, Alex ^[1]; Zheng, Tianyue ^[2]; Higa, Kenneth ^[2];

^[2]

Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Energy Storage and Distributed Resources Division; California Polytechnic State Univ. (CalPoly), San Luis Obispo, CA (United States)
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Energy Storage and Distributed Resources Division

We report the effects of component ratios and mixing time on electrode slurry viscosity. Three component quantities were varied: active material (graphite), conductive material (carbon black), and polymer binder (carboxymethyl cellulose, CMC). The slurries demonstrated shear-thinning behavior, and suspension properties stabilized after a relatively short mixing duration. However, micrographs of the slurries suggested their internal structures did not stabilize after the same mixing time. Increasing the content of polymer binder CMC caused the greatest viscosity increase compared to that of carbon black and graphite.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Organization:: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Vehicle Technologies Office; USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Vehicle Technologies Office (VTO)

Grant/Contract Number:: AC02-05CH11231

OSTI ID:: 1832045

Alternate ID(s):: OSTI ID: 1896668

Journal Information:: Polymers, Vol. 13, Issue 22; ISSN 2073-4360

Publisher:: MDPICopyright Statement

Country of Publication:: United States

Language:: English

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