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AssigneeLG Chem, Ltd.
InventorsYe Lin Kim, Ki Yeon Jo, Jung Keun Yoo, Je Young Kim, Sang Hoon Choy, Jong Heon Seol
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The present invention provides a conductive material dispersed liquid including a conductive material which includes bundle-type carbon nanotubes; a dispersant which includes a hydrogenated nitrile-based rubber; and a dispersion medium, where a complex modulus (|G*| @ 1 Hz) is in a range of 20 to 500 Pa when measured by a rheometer at a frequency of 1 Hz, and a secondary battery manufactured using the same. The conductive material dispersed liquid has a controlled complex modulus to exhibit excellent dispersibility and powder resistance characteristics, and as a result, can greatly improve the output characteristics of batteries.
A conductive material dispersed liquid, comprising:
A method of preparing a conductive material dispersed liquid, comprising mixing a conductive material which includes bundle-type carbon nanotubes, a dispersant and a dispersion medium comprising a hydrogenated nitrile-based rubber, and then milling such that a complex modulus (|G*| @ 1 Hz) of the conductive material dispersed liquid is in a range of 20 to 500 Pa when measured by a rheometer at a frequency of 1 Hz, and
Dependencies are inferred from the claim text.