State of charge indicators for a battery

Patent · 01 January 1999

OSTI ID:872652

Rouhani, S Zia ^[1]

---

1. Idaho Falls, ID

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.

• Research Organization: Idaho National Engineering and Environmental Laboratory, Idaho Falls, ID
• DOE Contract Number: AC07-94ID13223
• Assignee: Lockheed Martin Idaho Technologies Company (Idaho Falls, ID)
• Patent Number(s): US 5981100
• OSTI ID: 872652
• Country of Publication: United States
• Language: English

Related Subjects

/429/
anodic
aspect
battery
casing
cathodic
charge
charge indicators
configured
contact
contraction
coupled
displacements
electrode
electrode plate
electrolyte
embodiment
energy
energy level
expansion
gauge
house
indicate
indicator
indicators
individually
intermediate
level
movement
plate
plates
plural
relates
responsive
separator
terminals
utilizes