Sulfur-carbon composite, preparation method thereof, and lithium secondary battery comprising same
AssigneeLG Energy Solution, Ltd.
InventorsEui Tae Kim, Kwonnam Sohn, Doo Kyung Yang
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Abstract
A sulfur-carbon composite including porous carbon material, and sulfur, wherein at least a portion of an inside and a surface of the porous carbon material coated with the sulfur, the sulfur-carbon composite has a pore volume of 0.180 cm3/g to 0.300 cm3/g, and the sulfur-carbon composite has an average pore size of 40.0 nm to 70.0 nm, and a method of manufacturing the same. Also, a method of manufacturing a sulfur-carbon composite, which includes (a) mixing a porous carbon material with sulfur particles, wherein the sulfur particles have a particle size of 1 nm to 1 μm using a Henschel mixer; and (b) drying the resulting mixture of (a).
Claims14
A sulfur-carbon composite comprising:
- a porous carbon material;
- and
- sulfur,
- wherein at least a portion of an inside and a surface of the porous carbon material is coated with the sulfur,
- the sulfur-carbon composite has a pore volume of 0.180 cm3/g to 0.300 cm3/g, and
- the sulfur-carbon composite has an average pore size of 40.0 nm to 70.0 nm,
- wherein the sulfur-carbon composite has particle size distributions d90, d10, and d50 of 100 μm to 140 μm, 7 μm to 15 μm, and 30 μm to 70 μm, respectively.
Dependencies are inferred from the claim text.