Batteries, separators, components, and compositions with heavy metal removal capability and related methods
In accordance with at least certain embodiments of the present invention, a novel concept of utilizing PIMS minerals as a filler component within a microporous lead-acid battery separator is provided. In accordance with more particular embodiments or examples, the PIMS mineral (preferably fish meal, a bio-mineral) is provided as at least a partial substitution for the silica filler component in a silica filled lead acid battery separator (preferably a polyethylene/silica separator formulation). In accordance with at least selected embodiments, the present invention is directed to new or improved batteries, separators, components, and/or compositions having heavy metal removal capabilities and/or methods of manufacture and/or methods of use thereof.
1. A lead acid battery separator having a front face and a reverse face, the separator comprising:
a porous, silica filled, polymer membrane having a backweb with integral ribs, wherein the ribs comprise of a plurality of negative cross ribs on the reverse face, and the positive face have ribs which are perpendicular to the negative cross ribs;
wherein the negative cross ribs are transverse to the longitudinal direction of the backweb.
2. The lead acid battery separator of claim 1 , wherein the membrane comprises one of the following consisting of: a microporous or macroporous thermoplastic material, preferably polyethylene, polypropylene, polyvinyl chloride, and the mixtures thereof; rubber; polyolefin; phenolic; crosslinked phenolic resin; cellulosic; glass; or combinations thereof.
3. The lead acid battery separator of claim 1 , wherein the separator may be a cut piece separator or a wrap, envelope, pouch, sleeve, or pocket type separator.