Lead acid battery separators having improved rib-profiles, batteries, systems, and related methods

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United States of America Patent

PATENT NO 12087969
APP PUB NO 20200411830A1
SERIAL NO

16979184

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Abstract

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Disclosed herein are exemplary embodiments of improved separators for lead acid batteries, improved lead acid batteries incorporating the improved separators, and vehicles, devices, or systems incorporating the same. A lead acid battery separator is provided with a porous membrane with a plurality of ribs extending from a surface thereon. The plurality of ribs preferably includes both positive ribs and negative ribs having similar heights. The ribs are provided with a plurality of discontinuous peaks arranged such as to provide resilient support for the porous membrane in order to resist forces exerted by active material swelling and thus mitigate the effects of acid starvation associated with such swelling, and increasing the acid availability at the electrodes. A lead acid battery is further provided that incorporates the provided separator. Such a lead acid battery may be a flooded lead acid battery, an enhanced flooded lead acid battery, a gel battery, an AGM battery, and may be provided as operating in a partial state of charge. Systems incorporating such a lead acid battery are also provided, such as a vehicle or any other energy storage system, such as solar or wind energy collection. Other exemplary embodiments are provided such as to have any one or more of the following: increased or improved acid availability, reduced or mitigated acid starvation, and other improvements.

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Patent Owner(s)

Patent OwnerAddress
DARAMIC LLC11430 NORTH COMMUNITY HOUSE ROAD SUITE 350 CHARLOTTE NC 28277

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Whear, J Kevin Utica, US 86 452

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