Zeon Corporation

Julien Delmas

Norikazu Yamamoto

Hiroshi Kobayashi

Kayoko Takizawa

Shigeru Shuto

Provided is a slurry composition for a secondary battery negative electrode that has excellent producibility and can suppress cell swelling and an increase in internal resistance in a secondary battery. The slurry composition for a secondary battery negative electrode contains a negative electrode active material, a particulate polymer, and water. The negative electrode active material includes a carbon-based negative electrode active material having a surface functional group content of at least 0.9% and not more than 1.5%, and a BET specific surface area of 2.5 m/g or less. The particulate polymer has a surface acid content of at least 0.2 mmol/g and not more than 2.0 mmol/g.

Slurry composition for secondary battery negative electrode, negative electrode for secondary battery, and secondary battery

Provided is a binder composition for a non-aqueous secondary battery electrode capable of forming an electrode for a non-aqueous secondary battery that has excellent peel strength and can cause a non-aqueous secondary battery to display excellent cycle characteristics. The binder composition for a non-aqueous secondary battery electrode contains: a first particulate polymer including an aliphatic conjugated diene monomer unit in a proportion of more than 90 mass % and having a volume average particle diameter of at least 0.6 &#x3bc;m and not more than 2.5 &#x3bc;m; and a second particulate polymer including an aliphatic conjugated diene monomer unit in a proportion of at least 20 mass % and not more than 60 mass % and having a volume average particle diameter of at least 0.01 &#x3bc;m and not more than 0.5 &#x3bc;m.

Binder composition for non-aqueous secondary battery electrode, slurry composition for non-aqueous secondary battery electrode, electrode for non-aqueous secondary battery, and non-aqueous secondary battery

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Tokyo, Japan

Julien Delmas