Patent · US Active

Cathode electrode and lithium ion battery

US8865346B2 · kind B2 · utility

2Cited by

0References

10Claims

0Family size

Assignees

TSINGHUA UNIVERSITY · CN
HON HAI PRECISION INDUSTRY CO., LTD. · TW

Inventors

Xiang-Ming He · Beijing, CN
Li Wang
Jian Li · Shanghai, CN
Jian Gao · Beijing, CN

Key dates

Filing date	Nov 13, 2012
Grant date	Oct 21, 2014
Priority date	—
Expiry date	Nov 13, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S977/948
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A cathode electrode of a lithium ion battery includes a cathode current collector and a cathode material layer. The cathode material layer is located on a surface of the cathode current collector. The cathode material layer includes a cathode active material. The cathode active material includes sulfur grafted poly(pyridinopyridine). The sulfur grafted poly(pyridinopyridine) includes a poly(pyridinopyridine) matrix and sulfur dispersed in the poly(pyridinopyridine) matrix. The cathode current collector includes a polymer substrate and a graphene layer located on a surface of the polymer substrate adjacent to the cathode material layer. A lithium ion battery using the cathode electrode is also disclosed.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.