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:
Jul. 06, 2010

Filed:

Dec. 23, 2004
Applicants:

Shunji Watanabe, Sendai, JP;

Yoshibumi Nakamura, Sendai, JP;

Hideharu Onodera, Sendai, JP;

Tsugio Sakai, Sendai, JP;

Kensuke Tahara, Sendai, JP;

Inventors:

Shunji Watanabe, Sendai, JP;

Yoshibumi Nakamura, Sendai, JP;

Hideharu Onodera, Sendai, JP;

Tsugio Sakai, Sendai, JP;

Kensuke Tahara, Sendai, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 2/06 (2006.01); H01M 2/02 (2006.01); H01M 2/04 (2006.01); H01M 4/66 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electrochemical cell has a container containing a positive electrode, a negative electrode, and an electrolyte. The container has a bottom face and a hole formed in the bottom face. A positive electrode current collector is embedded in the bottom face of the container so that the hole formed in the bottom face exposes a portion of the positive electrode current collector. A covering portion is adhered to the positive electrode and covers the exposed portion of the positive electrode current collector. The positive electrode current collector is electrically connected to the positive electrode via the covering portion. A lid seals the container.


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