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:
Oct. 06, 2009
Filed:
Feb. 12, 2007
Yasuhiro Yamauchi, Sumoto, JP;
Naoya Nakanishi, Tokushima, JP;
Toshiyuki Nohma, Kobe, JP;
Sanyo Electric Co., Ltd., Moriguchi-shi, JP;
Abstract
According to an embodiment of the invention, a prismatic battery includes an electrode groupcontained in a prismatic metal outer can. The electrode grouphas a positive electrode substrate exposed partat one end and a negative electrode substrate exposed partat the other end. The positive and negative electrode substrate exposed partsandare bundled and welded to positive and negative electrode current collectorsandrespectively. The positive electrode substrate exposed partand positive electrode current collector 13 and the negative electrode substrate exposed partand negative electrode current collector 14 are covered with an insulating framehaving an angled U-shaped cross section and an angled U-shaped outline. It is therefore possible to provide a prismatic battery of a simple structure including an electrode group whose ends are covered with an easily manufactured insulating cover in which the battery's volume energy density is maintained and an internal short circuit is prevented.