Zeon Corporation

Asahi Kasei Kabushiki Kaisha

Jun Mikami

Yoshifumi Araki

Mayumi Fukumine

Kazunori Terada

Taku Matsumura

Tomoya Murase

Shinji Ieda

Yoshikimi Kondo

Koichi Nagase

Takayuki Wakita

Hisho Yamada

Tomoyo Okumura

Kimiaki Kawatani

Provided is a slurry composition for a secondary battery electrode that has excellent fibrous carbon nanomaterial dispersibility and is capable of forming an electrode mixed material layer having excellent close adherence to a current collector. The slurry composition is obtained using a conductive material paste composition for a secondary battery electrode that contains a fibrous carbon nanomaterial, a binder, and a solvent. The binder includes a first copolymer that includes an alkylene structural unit and a nitrile group-containing monomer unit and has a weight average molecular weight of at least 170,000 and less than 1,500,000.

Conductive material paste composition for secondary battery electrode, slurry composition for secondary battery electrode, undercoating layer-equipped current collector for secondary battery electrode, electrode for secondary battery, and secondary battery

The present invention provides a polyamide composition containing 50 to 99 parts by mass of an aliphatic polyamide (1A) formed from a diamine and a dicarboxylic acid, and 1 to 50 parts by mass of a semi-aromatic polyamide (1B) containing a dicarboxylic acid unit that includes at least 75 mol % of isophthalic acid and a diamine unit that includes at least 50 mol % of a diamine of 4 to 10 carbon atoms, wherein the tan &#x3b4; peak temperature of the polyamide composition is at least 90&#xb0; C., and the weight average molecular weight Mw of the polyamide composition satisfies 15,000&#x2264;Mw&#x2264;35,000. The invention also provides a molded article or the like formed using the polyamide composition.

Polyamide composition and molded article

Provided are a binder composition for a secondary battery electrode that enables favorable dispersion of a conductive material when used in production of a slurry composition for a secondary battery electrode, and a slurry composition for a secondary battery electrode in which a conductive material is favorably dispersed. The binder composition for a secondary battery electrode contains a solvent and a copolymer including an alkylene structural unit and a nitrile group-containing monomer unit. The copolymer has a Mooney viscosity (ML, 100&#xb0; C.) of 40 or less. The slurry composition for a secondary battery electrode contains an electrode active material, a conductive material, the aforementioned binder composition for a secondary battery electrode, and a polymer other than the aforementioned copolymer.

Binder composition for secondary battery electrode, conductive material paste composition for secondary battery electrode, slurry composition for secondary battery electrode, electrode for secondary battery, and secondary battery

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Tokyo, Japan

Jun Mikami