IP Library Granted Patent US 8,389,158
Granted Patent B2
US 8,389,158 · App. 12/720,600 · Granted Mar 5, 2013

Lithium-ion battery using phosphorated composite

Inventors: Li Wang (Beijing, CN); Xiang-Ming He (Beijing, CN); Jian-Guo Ren (Beijing, CN); Wei-Hua Pu (Beijing, CN); Jian-Jun Li (Beijing, CN); Jian Gao (Beijing, CN)
Assignees: Tsinghua University; Hon Hai Precision Industry Co., Ltd.
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Quick Facts
Patent No.
US 8,389,158
App. No.
12/720,600
Granted
Mar 5, 2013
Kind
B2
Abstract

A lithium-ion battery includes an anode, a cathode, and an electrolyte. The anode includes a phosphorated composite including a conductive matrix and a red phosphorus. The conductive matrix includes a material being selected from the group consisting of conductive polymer and conductive carbonaceous material. A weight percentage of the conductive matrix in the phosphorated composite ranges from about 10% to about 85%. A weight percentage of the red phosphorus in the phosphorated composite ranges from about 15% to about 90%.

Claims (14)

1. A lithium-ion battery comprising:

an anode, a cathode, and an electrolyte;

wherein the anode comprises a phosphorated composite comprising:

a conductive matrix, the conductive matrix comprises a material being selected from the group consisting of conductive polymer and conductive carbonaceous material, and a weight percentage of the conductive matrix in the phosphorated composite ranging from about 10% to about 85%; and

a red phosphorus, and a weight percentage of the red phosphorus in the phosphorated composite ranging from about 15% to about 90%.

2. The lithium-ion battery of claim 1 , wherein the conductive polymer is conjugated conductive polymer.

3. The lithium-ion battery of claim 2 , wherein the conjugated conductive polymer is a production of a reaction of a polymer under catalysis of the red phosphorus; and the reaction is dehydration, de-amine, dehydrogenation or dehydrohalogenation.

4. The lithium-ion battery of claim 3 , wherein the polymer is selected from the group consisting of polypropylene, polyacrylonitrile, polystyrene, polyethylene oxide, polyvinyl alcohol, polyvinylidenechloride, polyvinylidene fluoride, polyvinyl fluoride, polyvinyl chloride, poly1,2-chloride ethylene, poly1,2-fluoride ethylene, polymethyl methacrylate, and phenolic resin.

5. The lithium-ion battery of claim 1 , wherein the conductive carbonaceous material is selected from the group consisting of active carbon, acetylene black, conductive graphite, and conductive amorphous carbon.

6. The lithium-ion battery of claim 5 , wherein the conductive amorphous carbon is made by dehydrogenation of sugar or cellulose.

7. The lithium-ion battery of claim 1 , wherein the conductive matrix is a pyrolytic polyacrylonitrile with a weight percentage of about 45%, and the weight percentage of the red phosphorus is about 55%.

8. The lithium-ion battery of claim 1 , wherein the conductive matrix is a pyrolytic polyvinylidene chloride with a weight percentage of about 60%, and the weight percentage of the red phosphorus is about 40%.

9. The lithium-ion battery of claim 1 , wherein the conductive matrix is an active carbon with a weight percentage of about 70%, and the weight percentage of the red phosphorus is about 30%.

10. The lithium-ion battery of claim 1 , wherein the conductive matrix is a conductive graphite with a weight percentage of about 85%, and the weight percentage of the red phosphorus is about 15%.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 9, 2010
From: WANG, LI; HE, XIANG-MING; REN, JIAN-GUO; PU, WEI-HUA; LI, JIAN-JUN; GAO, JIAN
To: TSINGHUA UNIVERSITY; HON HAI PRECISION INDUSTRY CO., LTD.
Reel/Frame 024054/0075 →
Priority Claims (1)
CN 2009 1 0080303 · Mar 18, 2009 · national
Continuity (1)
Related Publication 20100239905A1 · Sep 23, 2010