CONDUCTIVE MATERIAL DISPERSED LIQUID AND LITHIUM SECONDARY BATTERY MANUFACTURED USING THE SAME

CONDUCTIVE MATERIAL DISPERSED LIQUID AND LITHIUM SECONDARY BATTERY MANUFACTURED USING THE SAME

The present invention provides: a conductive material dispersed liquid containing a conductive material, a dispersant, and a dispersion medium, wherein the conductive material comprises bundle-type carbon nanotubes having a bulk density in a range of 10-50 kg/m 3 and a conductivity satisfying the co...

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Bibliographische Detailangaben
Hauptverfasser: WOO, Ji Hee, KANG, Kyung Yeon, CHOY, Sang Hoon, CHO, Dong Hyun, SEOL, Jong Heon, KIM, Ye Lin
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Zusammenfassung:The present invention provides: a conductive material dispersed liquid containing a conductive material, a dispersant, and a dispersion medium, wherein the conductive material comprises bundle-type carbon nanotubes having a bulk density in a range of 10-50 kg/m 3 and a conductivity satisfying the conditions of Equation 1 below, thereby exhibiting excellent dispersibility and conductivity; and a lithium secondary battery, which is manufactured using the conductive material dispersed liquid and thus can exhibit excellent battery functions, especially, excellent output characteristics at low temperatures: ˆ’ X ‰¤ 10 log R ‰¤ ˆ’ 0.6 X (in Equation 1 above, X is a bulk density of the carbon nanotubes, and R is a powder resistance of the carbon nanotubes under a pressure of 10 to 65 MPa.).