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1. 发明申请

WO2019152583A1 IMPROVED LEAD ACID BATTERY SEPARATORS, RESILIENT SEPARATORS, BATTERIES, SYSTEMS, AND RELATED METHODS 审中-公开
公开(公告)号：WO2019152583A1
公开(公告)日：2019-08-08
申请号：PCT/US2019/015949
申请日：2019-01-31
申请人： DARAMIC, LLC
发明人： MILLER, Eric, H. , PATIL, Girish, Shivaji , WHEAR, J., Kevin
IPC分类号： H01M10/12 , H01M2/18
摘要： Disclosed herein are exemplary embodiments of improved separators for lead acid batteries, improved lead acid batteries incorporating the improved separators, and 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 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 swelling NAM and thus mitigate the effects of acid starvation associated with NAM swelling. The separator is also provided to be capable utilizing any motion experienced by the battery housing such a separator in order to mitigate the effects of acid stratification by facilitating acid mixing. 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, 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: a lowered electrical resistance; increased puncture resistance; increased oxidation resistance; increased ability to mitigate the effects of dendrite growth, and/or other improvements.

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