The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 8119285 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 21, 2012

Filed:

Oct. 26, 2004
Applicants:

Naoki Hatta, Ichihara, JP;

Toshikazu Inaba, Ichihara, JP;

Izumi Uchiyama, Ichihara, JP;

Inventors:

Naoki Hatta, Ichihara, JP;

Toshikazu Inaba, Ichihara, JP;

Izumi Uchiyama, Ichihara, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 4/36 (2006.01);
U.S. Cl.
CPC ...
Abstract

A positive electrode material is disclosed which contains an iron lithium phosphate as a positive electrode active material and has a large charge/discharge capacity, high-rate adaptability, and good charge/discharge cycle characteristics at the same time. Also disclosed are a simple method for producing such a positive electrode material and a high-performance secondary battery employing such a positive electrode material. Specifically, disclosed is a positive electrode material for secondary battery characterized by mainly containing a positive electrode active material represented by the general formula: LiFePO(wherein n is a number of 0-1) and further containing at least one different metal element selected from the group consisting of vanadium (V), chromium (Cr), copper (Cu), zinc (Zn), indium (In) and tin (Sn). This positive electrode material can be produced using a halide of such a metal element as the raw material.


Find Patent Forward Citations

Hatta, Naoki. (2012). Cathode material for secondary battery, method for producing cathode material for secondary battery and secondary battery (U.S. Patent No. 8119285). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8119285

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