CARBON BLACK DISPERSED COMPOSITION FOR BATTERIES, POSITIVE ELECTRODE-FORMING MIX PASTE, LITHIUM-ION SECONDARY BATTERY-FORMING POSITIVE ELECTRODE, AND LITHIUM-ION SECONDARY BATTERY

Abstract: in a carbon black dispersed composition comprising carbon black, methyl cellulose, and n-methyl-2-pyrrolidone, the methyl cellulose has a polydispersity index of up to 1.9 based on absolute molecular weight measurement by sec-mals and a 2 wt % aqueous solution viscosity of 3 to 30 mpa�s at 20� c. the composition having carbon black uniformly dispersed and maintaining the initial dispersion state, i.e., having storage stability is obtained without excessive labor and/or time.

Inventor(s): Keiichi KOMATSUKI, Shingo NIINOBE, Akira KITAMURA

CPC Classification: C08K3/04 (Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives ))

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