Sealed lead acid battery using modular frame construction

Details Sealed lead acid battery using modular frame construction Sealed lead acid battery using modular frame construction

1991-11-04

1993-07-13

Chaudhuri, Olik

Chemistry: electrical current producing apparatus, product, and

Means externally releasing internal gas pressure from closed...

Elastic, resilient or spring biasing valve means

429 82, 429130, 429138, 429152, 429154, 429153, 429161, 429185, H01M 212, H01M 214

Patent

active

052272605

ABSTRACT:
The preferred embodiment of the present invention relates to a sealed, oxygen recombinant lead-acid battery which includes a series of modules, e.g. 4-volt modules. The modules are prepared from frame and film assemblies which are easily stacked to the desired voltage or capacity. In the preferred embodiment, the assemblies include two 2.0 normal voltage cells, attached in series, three of which are then combined to form a 12-volt system. Modularity eliminates the need for expensive tooling and parts inventory and permits the creation of a wide variety of battery designs. Specially designed vents are employed to permit gas escape during overcharge or if recombination efficiencies are less than desired and to prevent entry of oxygen or moisture when the battery is in its recombinant mode.

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patent: 5004655 (1991-04-01), Symanski
patent: 5035966 (1991-07-01), Tokunaja et al.

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