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:
Nov. 26, 2013
Filed:
May. 15, 2008
Chi Thuong-le LA, Happy Valley, OR (US);
Robert R. Waterhouse, Scio, OR (US);
Richard W. Pekala, Corvallis, OR (US);
Chi Thuong-Le La, Happy Valley, OR (US);
Robert R. Waterhouse, Scio, OR (US);
Richard W. Pekala, Corvallis, OR (US);
Amtek Research International, LLC, Lebanon, OR (US);
Abstract
A microporous polyethylene battery separator material (), for use in a flooded-cell type lead-acid battery, benefits from increased porosity, enhanced wettability, and exceptionally low electrical resistance when an electrolyte-soluble pore former is employed in the manufacturing process. The pore former () is soluble in electrolytic fluid and therefore dissolves in-situ in sulfuric acid during battery assembly. The dissolution of the pore former leaves behind additional, larger voids () in the separator material and thereby enhances ionic diffusion and improves battery performance.