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.:
Date of Patent:
Apr. 24, 2007
Filed:
Aug. 18, 2005
Applicants:
Manabu Hayashi, Ibaraki, JP;
Tomiyuki Kamada, Ibaraki, JP;
Tadashi Ishihara, Tokyo, JP;
Inventors:
Assignee:
Mitsubushi Chemical Corporation, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/58 (2006.01);
U.S. Cl.
CPC ...
Abstract
A lithium secondary battery with high-output/high-input characteristics which has a long life, and is highly safe contains a negative electrode of a negative-electrode active material. In a dispersion prepared by dispersing 100 g of the active-material powder in 200 g of water together with 2 g of carboxymethyl cellulose, the particle diameter at which particles begin to appear is 50 μm or smaller when the dispersion is examined by the grind gauge method for determining the degree of dispersion in accordance with JIS K5400.