Chemistry: electrical current producing apparatus – product – and – With measuring – testing – or indicating means
Patent
1998-03-03
1999-11-09
Nuzzolillo, Maria
Chemistry: electrical current producing apparatus, product, and
With measuring, testing, or indicating means
429 91, 429225, H01M 1048
Patent
active
059811005
ABSTRACT:
The present invention relates to state of charge indicators for a battery. One aspect of the present invention utilizes expansion and contraction displacements of an electrode plate of a battery to gauge the state of charge in the battery. One embodiment of a battery of the present invention includes an anodic plate; a cathodic plate; an electrolyte in contact with the anodic and cathodic plates; plural terminals individually coupled with one of the anodic and cathodic plates; a separator intermediate the anodic and cathodic plates; an indicator configured to indicate an energy level of the battery responsive to movement of the separator; and a casing configured to house the anodic and cathodic plates, electrolyte, and separator.
REFERENCES:
patent: 4129824 (1978-12-01), Howes
patent: 5244754 (1993-09-01), Bohmer et al.
patent: 5348813 (1994-09-01), Bohmer et al.
patent: 5438249 (1995-08-01), Chang et al.
patent: 5567541 (1996-10-01), Rouhani
patent: 5580675 (1996-12-01), Rouhani
Lockheed Martin Idaho Technologies Company
Nuzzolillo Maria
Wills Monique M.
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