Crystalline carbonaceous material with controlled interlayer spacing and method of preparing same

Patent metadata

Field	Value
Publication number	US-9793064-B2
Application number	US-95210510-A
Country	US
Kind code	B2
Filing date	Nov 22, 2010
Priority date	Jul 7, 2010
Publication date	Oct 17, 2017
Grant date	Oct 17, 2017

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.

First claim

What is claimed is:

1. 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 m 2 /g and 51.6 m 2 /g, and shows peaks at 2Θ=26.5°±0.5° and 2θ=12.0°±2.0°.

2. The crystalline carbonaceous material of claim 1 , 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.

3. The crystalline carbonaceous material of claim 1 , wherein the filler comprises SiO 2 , SO 3 , Al 2 O 3 , silane, or a combination thereof.

4. The crystalline carbonaceous material of claim 1 , wherein the filler is included at or between 5 wt % and 30 wt % based on the total weight of the crystalline carbonaceous material.

5. The crystalline carbonaceous material of claim 1 , wherein the crystalline carbonaceous material is for a capacitor or a rechargeable lithium battery.

6. The crystalline carbonaceous material of claim 1 , wherein the crystalline carbonaceous material has a tap density at or between 0.5 g/cc and 1.5 g/cc.

7. 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 m 2 /g and 51.6 m 2 /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°.

Assignees

• Sheem Kyeu-Yoon
• Ka Bok-Hyun
• Song Eui-Hwan
• An Jung-Woo
• Samsung Sdi Co Ltd

Inventors

• Sheem Kyeu-Yoon
• Ka Bok-Hyun
• Song Eui-Hwan
• An Jung-Woo

Classifications

• H01M10/482

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M10/345

  Gastight metal hydride accumulators · CPC title

• Y02E60/13

  Energy storage using capacitors · CPC title

• H01G11/32 Primary

  Carbon-based · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title