Title:
PRODUCTION METHOD FOR SLURRY COMPOSITION FOR SECONDARY BATTERY ELECTRODE, AND PRODUCTION METHOD FOR SECONDARY BATTERY ELECTRODE AND SECONDARY BATTERY
Document Type and Number:
WIPO Patent Application WO/2023/008296
Kind Code:
A1
Abstract:
The present invention provides a production method for a slurry composition that makes it possible to obtain a secondary battery electrode which, in a case where said composition for a secondary battery electrode has a higher-than-conventional solid content concentration, preserves coatability as a result of said composition having reduced viscosity, and which exhibits excellent peel strength (adhesiveness). This production method comprises: a step A for kneading a composition that has a 60-80 mass% solid content concentration and comprises an active material, a thickener, and water into a paste to obtain a first thick paste product; a step B for adding a hydrophilic binder (different from the thickener) and water to the first thick paste product and kneading to a paste to obtain a second thick paste product; and a step C for adjusting the solid content concentration of the second thick paste product to 40-60 mass%.
Inventors:
SHIMURA AYANO (JP)
SHIMADA MASAKI (JP)
SAITO NAOHIKO (JP)
SHIMADA MASAKI (JP)
SAITO NAOHIKO (JP)
Application Number:
PCT/JP2022/028302
Publication Date:
February 02, 2023
Filing Date:
July 21, 2022
Export Citation:
Assignee:
TOAGOSEI CO LTD (JP)
International Classes:
H01M4/04; H01G11/38; H01M4/02; H01M4/13; H01M4/139; H01M4/62
Domestic Patent References:
| WO2016104315A1 | 2016-06-30 |
Foreign References:
| JP2014165131A | 2014-09-08 | |||
| JP2015207471A | 2015-11-19 |
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