Smart valve regulated lead acid battery with embedded electronic

Details Smart valve regulated lead acid battery with embedded electronic Smart valve regulated lead acid battery with embedded electronic

1998-03-06

2000-08-22

Nuzzolillo, Maria

Chemistry: electrical current producing apparatus, product, and

Process of cell operation

429 63, 429 64, 429 72, 429 92, 429 93, 137260, 324427, 324431, H01M 236, H01M 1048, G01N 2742

Patent

active

06106968&

ABSTRACT:
For use with a valve regulated lead acid (VRLA) battery, a fluid fill system and a method of maintaining fill fluid in a VRLA battery. In one embodiment, the system includes: (1) a fluid determination circuit, associated with the battery, that determines a quantity of fill fluid in the VRLA battery and (2) a controller, coupled to the fluid determination circuit, that introduces replacement fill fluid into the VRLA battery based on the quantity to replace fill fluid lost from the VRLA battery. The fluid determination circuit comprises sensors that measure a temperature and pressure associated with the VRLA battery, and a state of a fluid release valve on the battery.

REFERENCES:
patent: 4289836 (1981-09-01), Lemelson
patent: 4304823 (1981-12-01), Lemelson
patent: 5453334 (1995-09-01), Melichar
patent: 5631540 (1997-05-01), Nguyen
patent: 5659240 (1997-08-01), King

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