Anode material with unsaturated compounds bonded to carbon-containing substrates and anode eletrode plate

Patent metadata

Field	Value
Publication number	US-9376412-B2
Application number	US-201213452949-A
Country	US
Kind code	B2
Filing date	Apr 23, 2012
Priority date	Dec 30, 2011
Publication date	Jun 28, 2016
Grant date	Jun 28, 2016

Abstract

An anode material is provided for a surface of an electrode. The anode material comprises carbon-containing substrates and unsaturated compounds. At least one chemical bond is formed between the unsaturated compounds and the surfaces of the carbon-containing substrates.

First claim

What is claimed is:

1. An anode material for a surface of an electrode plate, the anode material being consisting of:
carbon-containing substrates; and
unsaturated compounds, wherein at least a chemical bond is formed between the unsaturated compounds and the carbon-containing substrates, and the unsaturated compounds are represented by a chemical formula (I) shown as following:

wherein R comprises at least a unit of ethylene oxide segment, propylene oxide segment, siloxane segment, aliphatic segment, aromatic segment, fluorocarbon segment or the combination thereof, and n is 1-3.

2. The anode material of claim 1 , wherein a weight percentage of the unsaturated compounds to the carbon-containing substrates is smaller than 15 wt %.

3. The anode material of claim 1 , wherein the thickness of the unsaturated compounds is about 5˜500 nm.

4. The anode material of claim 1 , wherein a graphitization degree of the carbon-containing substrates is about 50%˜90%.

5. The anode material of claim 1 , wherein the carbon-containing substrates comprise graphite, graphene, hard carbon, soft carbon, single-wall carbon nano-tubes (SWCNT), multi-wall carbon nano-tubes (MWCNT), carbon fiber, carbon alloy, carbon metal oxide, silicon carbon composite (Si/C composite), mesophase carbon micro beads (MCMB), mesophase graphite, mesoporous graphite or the combination thereof.

6. An anode electrode plate, comprising:
a current collector; and
an anode material layer disposed on the current collector, wherein the anode material layer is consisted of carbon-containing substrates and unsaturated compounds, and at least a chemical bond is formed between the unsaturated compounds and the carbon-containing substrates, and the unsaturated compounds are represented by a chemical formula (I) shown as following:

wherein R comprises at least a unit of ethylene oxide segment, propylene oxide segment, siloxane segment, aliphatic segment, aromatic segment, fluorocarbon segment or the combination thereof, and n is 1-3.

7. The anode electrode plate of claim 6 , wherein a weight percentage of the unsaturated compounds to the carbon-containing substrates is smaller than 15 wt %.

8. The anode electrode plate of claim 6 , wherein the thickness of the unsaturated compounds is about 5˜500 nm.

9. The anode electrode plate of claim 6 , wherein a graphitization degree of the carbon-containing substrates is about 50%˜90%.

10. The anode electrode plate of claim 6 , wherein the carbon-containing substrates comprises graphite, graphene, hard carbon, soft carbon, single-wall carbon nano-tubes (SWCNT), multi-wall carbon nano-tubes (MWCNT), carbon fiber, carbon alloy, carbon metal oxide, silicon carbon composite (Si/C composite), mesophase carbon micro beads (MCMB), mesophase graphite, mesoporous graphite or the combination thereof.

11. The anode electrode plate of claim 6 , wherein the anode material layer further comprises a conducting agent and a binder.

Assignees

• Tsai Li-Duan
• Wu Wei-Hsin
• Lin Yueh-Wei
• Fang Chia-Chen
• Ind Tech Res Inst

Inventors

• Tsai Li-Duan
• Wu Wei-Hsin
• Lin Yueh-Wei
• Fang Chia-Chen

Classifications

• Y02E60/122

  Cross-Sectional Technologies · mapped topic

• B82Y30/00

  Nanotechnology for materials or surface science, e.g. nanocomposites · CPC title

• H01M10/0525

  Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries · CPC title

• H01M4/587

  for inserting or intercalating light metals · CPC title

• C07D307/42 Primary

  Singly bound oxygen atoms · CPC title