Fluid depolarized electrochemical battery with automatic valve

Details Fluid depolarized electrochemical battery with automatic valve Fluid depolarized electrochemical battery with automatic valve

1992-05-20

1994-04-19

Willis, Jr., Prince

Chemistry: electrical current producing apparatus, product, and

With pressure equalizing means for liquid immersion operation

H01M 200

Patent

active

053044312

ABSTRACT:
The combination of a gas depolarized electrochemical battery with one or more tiny electrically activated thermally responsive semiconductor microactuators ( a "valve on a chip") disposed over the fluid entrance inlet(s) creates an efficient gas depolarized electrochemical power supply which permits the entrance of oxygen from air to the battery only when the battery is supplying electrical power to a load. The valve on a chip is singularly suited for use in a single flashlight size cell. Power for the valve is preferably derived from the battery itself but could be provided by a separate source within or without the battery. The valve on a chip is singularly suited for use in a single flashlight size cell or smaller. Power for the valve is preferably derived from the battery itself but could be provided by a separate source within or without the battery. This tiny valve acts as a safety pressure vent and can act as a safety fuse as well. When electrical power is not required from the battery, the valve excludes entry of harmful impurities and unneeded fluid reactants thereby increasing the life of the battery during storage or when the electrical device the battery is powering is idle. A resistance means in parallel to the actuator valve is useful to enhance the operation of the power supply. If the battery leaks, the corrosive fluid causes the valve and/or battery to cease to operate. The combination with a recharging apparatus is also useful. The battery may be designed to regulate the flow of reactant.

REFERENCES:
patent: 2468430 (1949-04-01), Derksen
patent: 3746580 (1973-07-01), Aker et al.
patent: 4011366 (1977-03-01), Bones et al.
patent: 4035552 (1977-07-01), Epstein
patent: 4039728 (1977-08-01), Cheron
patent: 4074022 (1976-11-01), Nadal
patent: 4177327 (1979-12-01), Mathews et al.
patent: 4189526 (1980-02-01), Cretzmeyer
patent: 4529673 (1985-07-01), Zupancic
patent: 4547438 (1985-10-01), MacArthur et al.
patent: 4894295 (1990-01-01), Cheiky
patent: 4913983 (1990-04-01), Cheiky
patent: 5069419 (1991-12-01), Jerman
Electrothermaol Actuators vie with electromagnets & solenoid, 1975.
Schumm, Jr., "Batteries," Encyclopedia of Physical Science and Technology, vol. 2, pp. 387, 396-397 (Academic Press 1987) p. 390.
Tuck, Modern Battery Technology, Ellis Horwood Series in Applied Science and Industrial Technology (London N.Y. 1991) pp. 126, 128, 129, 135-138, 161-162, 166-167, 187-188.
"Electrothermal Actuators Vie with Electromagnets and Solenoids," Product Engineering, Oct. 1975, pp. 19-21.
"Relay has no Coil-Actuators Heated to Open/Close Contacts" Automation, Aug. 1975, p. 17.
Power Sources 4 Research and Development in Non-Mechanical Electrical Power Sources, Proceeds of the 8th International Symposium held at Brighton, Sep. 1972, Ed by DH Collins, (Oriel Press).
I. C. Sensors Marketing Literature and Product Catalog, Mar. 1992-title: Electrically Activated, Normally Closed Diaphragm Valves.

Affiliated with

Also associated with

Rating

Fluid depolarized electrochemical battery with automatic valve does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluid depolarized electrochemical battery with automatic valve, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid depolarized electrochemical battery with automatic valve will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-18876