BINDER AQUEOUS SOLUTION FOR LITHIUM-ION BATTERY ELECTRODE, SLURRY FOR LITHIUM-ION BATTERY NEGATIVE ELECTRODE, NEGATIVE ELECTRODE FOR LITHIUM-ION BATTERY, AND LITHIUM-ION BATTERY

BINDER AQUEOUS SOLUTION FOR LITHIUM-ION BATTERY ELECTRODE, SLURRY FOR LITHIUM-ION BATTERY NEGATIVE ELECTRODE, NEGATIVE ELECTRODE FOR LITHIUM-ION BATTERY, AND LITHIUM-ION BATTERY

Provided are a binder aqueous solution for a lithium-ion battery electrode, a slurry for a lithium-ion battery negative electrode, a negative electrode for a lithium-ion battery, and a lithium-ion battery. The binder aqueous solution for a lithium-ion battery electrode contains an acidic group-conta...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: IKEYATSU, Katsuhiko, GODA, Hideki
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:Provided are a binder aqueous solution for a lithium-ion battery electrode, a slurry for a lithium-ion battery negative electrode, a negative electrode for a lithium-ion battery, and a lithium-ion battery. The binder aqueous solution for a lithium-ion battery electrode contains an acidic group-containing water-soluble polymer (A) and an amino group-containing water-soluble polymer (B). The acidic group-containing water-soluble polymer (A) is a polymer of a monomer group containing, with respect to 100 mol % of the monomer group, 30 mol % to 90 mol % of a (meth)acrylamide group-containing compound (a), 3 mol % to 20 mol % of an unsaturated organic acid (b), and 5 mol % to 40 mol % of an alkali metal or alkaline earth metal salt (c) of the unsaturated organic acid. A 1% by mass aqueous solution of the amino group-containing water-soluble polymer (B) has a pH of 9 or higher.