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:
Sep. 10, 2019
Filed:
May. 21, 2015
Panasonic Intellectual Property Management Co., Ltd., Osaka-shi, Osaka, JP;
Tomoki Tsuji, Osaka, JP;
Akira Kakinuma, Osaka, JP;
Tetsuya Hayashi, Osaka, JP;
Keisuke Yoneda, Osaka, JP;
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka-shi, JP;
Abstract
A wound battery includes an electrode assembly in which a first electrode and a second electrode are wound together via a separator, the electrode assembly being accommodated in a battery case including a bottomed tube-shaped metallic can. The first electrode has a first uncoated region defined by an exposed portion of a first current collector sheet at an end of the first current collector sheet in the axial direction of winding. The first electrode includes a first current collector lead connected to the first uncoated region. The first uncoated region is disposed on the same side as the open end of the metallic can. The second electrode includes a second current collector lead connected thereto. The first and the second current collector leads extend toward the open end of the metallic can. At least a portion of the first uncoated region is covered with an insulating layer, and the insulating layer extends beyond an end face of the first uncoated region.