SECONDARY BATTERY ELECTRODE BINDER AND USE THEREOF
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United States of America Patent
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Issued Date -
Mar 21, 2024
app pub date -
Dec 21, 2021
filing date -
Dec 25, 2020
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Abstract
A secondary battery electrode binder exhibits superior binding capacity as compared to conventional binders and makes it possible to reduce slurry viscosity, even when the solid concentration of an electrode slurry is high. A secondary battery electrode binder contains a block polymer having a polymer block (A) and a polymer block (B), wherein: the polymer block (A) includes a structural unit derived from an ethylenically unsaturated carboxylic acid monomer; the content of a structural unit derived from an ethylenically unsaturated carboxylic acid monomer in the polymer block (B) is less than 30 mass % (and is different from that in the polymer block (A)) with respect to all the structural units of the polymer block (B); the ratio of the polymer block (A) in the block polymer is 10-90 mass %; and the block polymer does not contain a structural unit derived from a crosslinkable monomer.
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