Porous ceramic battery vent

Details Porous ceramic battery vent Porous ceramic battery vent

1973-11-30

1976-03-09

Douglas, Winston A.

Batteries: thermoelectric and photoelectric

Thermoelectric

Radiation pyrometer

136179, 106 40R, H01M 212, C04B 2100

Patent

active

039430090

ABSTRACT:
A fired porous ceramic battery vent having a porosity and particle size distribution which can effectively permit the venting of cell gases in the battery while at the same time impede a flame from entering the battery container. The fired ceramic body is formed with a high melting point inorganic material containing aluminum and silicon oxides having a particle size no larger than about 600 microns. A lower melting point glass is used to fuse the particles together when in the fired state. The particle size of the high melting point material is important and ranges in size from 200 to 600 microns.

REFERENCES:
patent: 3753746 (1973-08-01), Koerner
patent: 3784385 (1974-01-01), Nekrasov

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