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:
Feb. 10, 2009
Filed:
Jan. 15, 2003
Hisashi Tsukamoto, Santa Clarita, CA (US);
Andrew Szyszkowski, Canyon Country, CA (US);
David M. Skinlo, Valencia, CA (US);
Mikito Nagata, Valencia, CA (US);
Hiroyuki Yumoto, Stevenson Ranch, CA (US);
Hisashi Tsukamoto, Santa Clarita, CA (US);
Andrew Szyszkowski, Canyon Country, CA (US);
David M. Skinlo, Valencia, CA (US);
Mikito Nagata, Valencia, CA (US);
Hiroyuki Yumoto, Stevenson Ranch, CA (US);
Quallion LLC, Sylmar, CA (US);
Abstract
An electric storage battery and method of manufacture thereof characterized by a feed through pin () which is internally directly physically and electrically connected to an inner end of a positive electrode substrate (). A C-shaped mandrel () extends around the pin and substrate end enabling the pin/mandrel to be used during the manufacturing process as an arbor to facilitate winding layers of a spiral jellyroll electrode assembly. The pin additionally extends from the battery case () and in the final product constitutes one of the battery terminals () with the battery case comprising the other terminal. The electrolyte is injected through the open end of the case after the end cap is welded to the negative electrode but before sealing the end cap to the case. The electrolyte is preferably injected through the C-shaped mandrel to facilitate and speed filling.