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:
Sep. 11, 2012

Filed:

Feb. 02, 2009
Applicants:

Kunio Nakazato, Tokyo, JP;

Mitsuru Nagai, Tokyo, JP;

Nobuo Ando, Tokyo, JP;

Inventors:

Kunio Nakazato, Tokyo, JP;

Mitsuru Nagai, Tokyo, JP;

Nobuo Ando, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/26 (2006.01); H01M 2/28 (2006.01); H01M 4/00 (2006.01); H01M 4/02 (2006.01); H01M 4/13 (2006.01); H01G 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

An electric storage devicehas an electrode laminate unitincluding positive electrodes, negative electrodesand a lithium electrodeprovided at the outermost part of the electrode laminate unit. The lithium electrodehas a lithium-electrode current collectorwelded to a negative-electrode current collectorand a lithium unitsandwiched between the lithium-electrode current collectorand the negative electrode. The lithium unitis composed of a lithium holding platethat is in contact with the lithium-electrode current collector, and a lithium ion sourcethat is provided to the lithium holding plate. The lithium ion sourceis not mounted on the lithium-electrode current collector, but only the lithium-electrode current collectoris laminated and welded, whereby the damage of the lithium ion sourceis prevented, and the manufacturing operation is simplified.


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