Back to results
US 9,793,064 B2Granted
Crystalline carbonaceous material with controlled interlayer spacing and method of preparing same
AssigneeSamsung SDI Co., Ltd.
InventorsKyeu-Yoon Sheem, Bok-Hyun Ka, Eui-Hwan Song, Jung-Woo An
Life of this patent
Estimating the term…
Abstract
A crystalline carbonaceous material with a controlled interlayer spacing and a method of manufacturing the same. In one embodiment, a crystalline carbonaceous material has a layered structure including a plurality of layers and where a filler is present between the layers. The layers with the filler have an interlayer spacing d002 at a (002) plane, and the interlayer spacing d002 is at or between 0.335 nm and 1 nm when its X-ray diffraction is measured using a CuKα ray.
Claims7
A crystalline carbonaceous material comprising:
- a layered structure comprising a plurality of layers;
- and
- a filler between the layers,
- wherein the plurality of layers with the filler therebetween have an interlayer spacing d002 at a (002) plane, and the interlayer spacing d002 is at or between 0.489 nm and 1 nm when its X-ray diffraction is measured using a CuKα ray,
- wherein the crystalline carbonaceous material is a natural graphite, an artificial graphite, mesophase carbon microbeads, or a combination thereof, and
- wherein the crystalline carbonaceous material has a specific surface area at or between 39.4 m2/g and 51.6 m2/g, and shows peaks at 2Θ=26.5°±0.5° and 2θ=12.0°±2.0°.
3 more elements
A crystalline carbonaceous material comprising:
- a layered structure comprising a plurality of layers;
- and
- a filler between the layers,
- wherein the plurality of layers with the filler therebetween have an interlayer spacing d002 at a (002) plane, and the interlayer spacing d002 is at or between 0.337 nm and 1 nm when its X-ray diffraction is measured using a CuKα ray,
- wherein the filler is a polymer comprising Si, S, Al, N, or a combination thereof or is a compound comprising Si, S, Al, N, or a combination thereof, the filler being included at or between 5 wt % and 30 wt % based on the total weight of the crystalline carbonaceous material,
- wherein the crystalline carbonaceous material is a natural graphite, an artificial graphite, mesophase carbon microbeads, or a combination thereof, and
- wherein the crystalline carbonaceous material has a specific surface area at or between 39.4 m2/g and 51.6 m2/g and a tap density at or between 0.5 g/cc and 1.5 g/cc, and shows peaks at 2Θ=26.5° and 2θ=12.0°±2.0°.
4 more elements
Dependencies are inferred from the claim text.