Improved separators for lead acid batteries, improved batteries and related methods

A battery separator and separator technology, applied in lead-acid batteries, lead-acid battery construction, batteries, etc., can solve the problems of reduced cycle life of antimony and unsatisfactory results.

Inactive Publication Date: 2019-03-15
DARAMIC LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Attempts have been made to completely or partially replace antimony in lead alloys with other alloying components, however, these attempts have not yielded satisfactory results
Overall, the presence of antimony in the positive gate of deep-cycle batteries may be a major factor in cycle life degradation

Method used

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  • Improved separators for lead acid batteries, improved batteries and related methods
  • Improved separators for lead acid batteries, improved batteries and related methods
  • Improved separators for lead acid batteries, improved batteries and related methods

Examples

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Embodiment approach

[0116] According to at least one embodiment, the porous membrane may comprise UHMWPE mixed with process oil and precipitated silica. According to at least one embodiment, the microporous membrane may comprise UHMWPE mixed with process oils, additives and precipitated silica. The mixture may also include minor amounts of other additives or agents commonly found in the separator art (eg, surfactants, wetting agents, colorants, antistatic additives, antioxidants, and / or the like, and any combination thereof). In certain instances, the microporous polymer layer may be a homogeneous mixture of 8 to 100% by volume polyolefin, 0 to 40% by volume plasticizer, and 0 to 92% by volume inert filler material. Preferred plasticizers are petroleum oils. Since plasticizers are the components most easily removed from polymer-filler-plasticizer compositions by solvent extraction and drying, they are useful for imparting porosity to battery separators.

[0117] In particular embodiments, the m...

Embodiment

[0142] The examples given below illustrate methods and results in accordance with the disclosed subject matter. These examples are not intended to cover all aspects of the subject matter disclosed herein, but merely illustrate representative methods, compositions, and results. These examples are not intended to exclude various equivalents or modifications of the present invention which are obvious to those skilled in the art.

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Abstract

Disclosed herein are improved separators for lead acid batteries, improved batteries, and related methods. The separators may include a porous membrane, rubber and/ or latex, and at least one performance enhancing additive or surfactant.

Description

[0001] Related Application Cross Reference [0002] This application claims priority and benefit from International Patent Application No. PCT / US2016 / 035285 filed June 1, 2016. technical field [0003] According to at least selected embodiments, the present disclosure or invention is directed to new or improved separators for lead-acid batteries, such as flooded lead-acid batteries, particularly enhanced flooded lead-acid batteries (EFBs), and Various other lead-acid batteries such as gel and absorbent glass wool mat (AGM) batteries. According to at least selected embodiments, the present disclosure or invention is directed to new or improved separators, battery separators, EFB separators, batteries, primary cells, systems, methods incorporating the same, vehicles using the same, methods of making the same Methods, uses thereof and various combinations of the above. In addition, methods, systems, and battery separators are disclosed herein for: increasing battery life, reduc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/16H01M2/14H01M10/06H01M50/403H01M50/406H01M50/414H01M50/417H01M50/434H01M50/437H01M50/449H01M50/451H01M50/454H01M50/457H01M50/463H01M50/466H01M50/489
CPCH01M10/06H01M50/4295H01M50/44H01M50/449H01M50/417H01M50/457H01M50/463H01M50/466H01M50/434H01M50/437H01M50/403H01M50/406H01M50/454H01M50/451H01M50/414H01M50/489Y02E60/10H01M2220/20H01M50/491H01M50/411H01M50/431H01M10/12Y02P70/50Y02T10/70
Inventor 詹姆斯·P·佩里阿希拉·克里斯哈拉莫斯库玛·曼尼卡姆萨斯米塔·安比卡特拉M·尼尔·戈洛温埃里克·H·米勒玛格丽特·R·罗伯茨
Owner DARAMIC LLC
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