GRAPHENE POWDER, ELECTRODE PASTE FOR LITHIUM ION BATTERY AND ELECTRODE FOR LITHIUM ION BATTERY

Hanxiao Yang

Patent

Atlas literature

Patent

US 10,230,111

GRAPHENE POWDER, ELECTRODE PASTE FOR LITHIUM ION BATTERY AND ELECTRODE FOR LITHIUM ION BATTERY

Hanxiao Yang

Claims

Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.

1 independent · 10 dependent

1
Independentgraphene powder
riginal) A graphene powder, having a speciﬁc surface area of 80 m 2/g or more to 250 m 2/g or less as measured by BET measurement, and an oxygen-to-carbon element ratio (O/C ratio) of 0.09 or more to 0.30 or less as measured by X-ray photoelectron spectroscopy. SVG 15517399.08-30-2018.JLQWZBMKLXEAPX4.CLM.1.7.452.726.524.790.svg 0.213 0.24 Chemistry Black and white
1. 2
  Dependent← claim 1graphene powder
  The graphene powder according to claim 1, wherein a nitrogen-to-carbon element ratio (N/C ratio) as measured by X-ray photoelectron spectroscopy is 0.005 or more to 0.02 or less. Original
2. 3
  Dependent← claim 1graphene powder
  The graphene powder according to claim 1, wherein a ratio of peak intensity I D to peak intensity IG D/IG rati o) as measured by Raman spectroscopy is 1 or more to 2 or less. SVG 15517399.08-30-2018.JLQWZBMKLXEAPX4.CLM.1.14.1083.1375.1135.1415.svg 0.133 0.173 Chemistry Black and white Previously presented
3. 4
  Dependent← claim 1graphene powder
  The graphene powder according to claim 1, having a powder resistivity of 10- 3 cm or more to 10-1 Q- cm or less. SVG 15517399.08-30-2018.JLQWZBMKLXEAPX4.CLM.1.17.666.1654.696.1683.svg 0.097 0.10 Chemistry Black and white Previously presented
4. 5
  Dependent← claim 1graphene powderelectrode active materialbinder
  An electrode paste for a lithium ion battery, comprising: the graphene powder according to claim 1, an electrode active material, and a binder. Previously presented
5. 6
  Dependent← claim 1graphene powderelectrode for lithium ion battery
  An electrode for a lithium ion battery, comprising the graphene powder according to claim 1. Previously presented
6. 7
  Dependent← claim 1graphene powder
  The graphene powder according to claim 1, wherein the O/C ratio is 0.09 or more to 0.20 or less. New
7. 9
  Dependent← claim 1graphene powder
  The graphene powder according to claim 1, wherein the speciﬁc surface area is 100 m 2/g or more to 200 m 2/g or less. New

Device structures

Layer stacks claimed or described, ordered top of device to substrate.

electrode for lithium ion battery

graphene powderconductive agent / electrode component

Materials

Materials described outside the worked examples.

graphene powder

Conductive Agent/Electrode Material

electrode active material

Electrode Active Material

Process steps

Additional fabrication and treatment steps described in the patent.

Oxidation Reduction

Step 1

Process details

description:Graphite oxide is obtained by oxidation treatment of natural graphite; graphene is then prepared by reduction reaction. O/C ratio controlled by changing oxidation degree of graphene oxide or by changing amount of surface treatment agent.

Materials:graphene oxidegraphene powder

Reported properties

Performance values and ranges asserted in the specification or claims.

Property	Value	Material
BET specific surface area (claimed range)	—	graphene powder
O/C element ratio (claimed range)	—

Why these are connected

Related documents with shared materials, methods, properties, or citations.

GRAPHENE POWDER, ELECTRODE PASTE FOR LITHIUM ION BATTERY AND ELECTRODE FOR LITHIUM ION BATTERY | Matter42 Literature