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:
Aug. 13, 2013
Filed:
Nov. 14, 2007
Koichi Kono, Asaka, JP;
Kohtaro Kimishima, Yokohama, JP;
Hiroyuki Ozaki, Kamishinjo, JP;
Patrick Brant, Seabrook, TX (US);
Jeffrey L. Brinen, League City, TX (US);
Zerong Lin, Kingwood, TX (US);
Koichi Kono, Asaka, JP;
Kohtaro Kimishima, Yokohama, JP;
Hiroyuki Ozaki, Kamishinjo, JP;
Patrick Brant, Seabrook, TX (US);
Jeffrey L. Brinen, League City, TX (US);
Zerong Lin, Kingwood, TX (US);
Abstract
The invention relates to a multi-layer, microporous membrane having appropriate permeability, pin puncture strength, shutdown temperature, shutdown speed, meltdown temperature, and thickness uniformity. The invention also relates to a battery separator formed by such multi-layer, microporous membrane, and a battery comprising such a separator. Another aspect of the invention relates to a method for making the multi-layer, microporous polyolefin membrane, a method for making a battery using such a membrane as a separator, and a method for using such a battery.