Zeon Corporation

Ikuya Mesuda

Takumi Sugimoto

Keisuke Ota

Shigetaka Hayano

Tomoya Murase

Yohei Tateishi

An anti-static agent containing a polyether compound having a cationic group is provided. According to the present invention, an anti-static agent can be provided which has excellent compatibility with a resin material and a rubber material as well as excellent anti-static properties.

Anti-static agent, and composition for molding and crosslinkable composition in which same is used

A slurry for a lithium ion secondary battery positive electrodes contains a positive electrode active material, a binder, a conductive material, and an organic solvent. The binder contains a nitrile group-containing acrylic polymer and a fluorine-containing polymer; and the viscosity ratio ((viscosity at a shear rate of 2 sec)/(viscosity at a shear rate of 20 sec)) of this slurry as measured by a coaxial double cylinder viscometer is 1.0-2.5. Positive electrodes produced using the slurry have excellent weight accuracy, and lithium ion secondary batteries produced with positive electrodes produced from the slurry have a high capacity and excellent cycle characteristics at high potentials. The produced lithium ion secondary battery is flexible and free from the occurrence of cracks in an active material layer when bent.

Slurry for lithium ion secondary battery positive electrodes

The disclosed binder composition for the positive electrode of a lithium ion secondary battery includes a binder and an organic dispersion medium, a weight-average molecular weight of the binder being from 100,000 to 2,000,000, and the binder containing 10% to 35% by mass of an ethylenically unsaturated monomer unit containing an acid group, and includes 0.6 to 1.5 equivalents of lithium with respect to the acid group. The disclosed slurry composition for the positive electrode of a lithium ion secondary battery includes this binder composition, a positive electrode active material, and a conductive material.

Binder composition for positive electrode of lithium ion secondary battery, slurry composition for positive electrode of lithium ion secondary battery and method of producing the same, method of producing positive electrode for lithium ion secondary battery, and lithium ion secondary battery

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Tokyo, Japan

Ikuya Mesuda