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US 11,699,792 B2Granted
Conductive material, electrode comprising the conductive material, secondary battery comprising the electrode, and method for preparing the conductive material
AssigneeLG Energy Solution, Ltd.
InventorsTae Gon Kim, Seul Ki Kim, Wang Mo Jung, Sang Wook Lee
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Abstract
A conductive material, and a method for preparing the same are provided. The conductive material has a structure where a plurality of graphene sheets are interconnected, wherein an oxygen content is 1 wt % or higher based on the total weight of the conductive material, and a D/G peak ratio is 2.0 or less when the Raman spectrum is measured.
Claims12
A conductive material comprising:
- a structure where a plurality of graphene sheets are interconnected;
- and
- a connecting part connected to at least a part of the plurality of graphene sheets,
- wherein the connecting part is a carbon compound having a non-graphene form,
- wherein an oxygen content is 1 wt % or higher based on a total weight of the conductive material;
- and
- a D/G peak ratio is 2.0 or less as measured by the Raman spectrum,
- wherein a longest length of the graphene sheet is 200 nm or less.
5 more elements
Dependencies are inferred from the claim text.