Oxidation protected separator

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9991487
APP PUB NO 20140255789A1
SERIAL NO

14200102

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Importance

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Abstract

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A battery separator for a lead/acid battery is resistant to oxidation arising from the use of water or acid containing contaminants, for example chromium (Cr), manganese (Mn), titanium (Ti), copper (Cu), and the like. The separator is a microporous membrane including a rubber. The rubber is no more than about 12% by weight of the separator. The rubber may be rubber latex, tire crumb, and combinations thereof. The rubber may be impregnated into the microporous membrane. The microporous membrane may be a microporous sheet of polyolefin, polyvinyl chloride, phenol-formaldehyde resins, cross-linked rubber, or nonwoven fibers. A method for preventing the oxidation and/or extending battery life of the separator is also included.

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Patent Owner(s)

Patent OwnerAddress
DARAMIC LLC13800 SOUTH LAKES DRIVE CHARLOTTE NC 28273

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chambers, Jeffrey K Philpot, US 37 214
Miller, Eric H Philpot, US 78 334
Whear, J Kevin Utica, US 86 452

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