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.

Date of Patent:
Apr. 01, 2008

Filed:

Apr. 10, 2002
Applicants:

Yusuke Watarai, Naka-gun, JP;

Akio Minakuchi, Naka-gun, JP;

Akihiro Higami, Naka-gun, JP;

Shoubin Zhang, Naka-gun, JP;

Tadashi Kobayashi, Minamisaitama-gun, JP;

Sawako Takeuchi, Saitama, JP;

Inventors:

Yusuke Watarai, Naka-gun, JP;

Akio Minakuchi, Naka-gun, JP;

Akihiro Higami, Naka-gun, JP;

Shoubin Zhang, Naka-gun, JP;

Tadashi Kobayashi, Minamisaitama-gun, JP;

Sawako Takeuchi, Saitama, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 4/62 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a lithium ion polymer battery comprising an electrode having excellent adhesion and electrical conductivity between a current collector and an active material layer, cycle capacity maintaining characteristics being improved, wherein a bonding layer, which bonds the current collector to the active material layer, is stable to an organic solvent in an electrolytic solution and is excellent in storage stability, and also, it is made possible to suppress the corrosion of the current collector by a strong acid such as hydrofluoric acid generated in the battery.


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