초록 ▼

The present invention is a sealed storage battery wherein a plurality of flattened unitary cells formed by sealing a polar plate group in an outer bag made of a sheet or a film of synthetic resin are stacked in a direction thicknesswise thereof and accommodated in a pressurized manner in a casing. B

The present invention is a sealed storage battery wherein a plurality of flattened unitary cells formed by sealing a polar plate group in an outer bag made of a sheet or a film of synthetic resin are stacked in a direction thicknesswise thereof and accommodated in a pressurized manner in a casing. By so constructing, the unitary cells can be uniformly applied with pressure with the increased capacity for efficiency for a battery, any possible deviation in the lifetime of the cells can be eliminated, and a highly reliable battery of flat type easy to fabricate, and suitable for use as an electric power source for portable electric appliances can be obtained.

대표청구항 ▼

A sealed storage battery comprising: a plurality of flattened unitary cells each having a polar plate group, including an anode plate, a cathode plate and a separator separating the polar plates from each other, an electrolyte retained by the polar plate group, and an outer bag in which both the pol

A sealed storage battery comprising: a plurality of flattened unitary cells each having a polar plate group, including an anode plate, a cathode plate and a separator separating the polar plates from each other, an electrolyte retained by the polar plate group, and an outer bag in which both the polar plate group and the electrolyte are sealed, said bag being made of a film or sheet of synthetic resin; a safety valve in the outer bag for each unitary cell; a rigid casing accommodating the unitary cells in a stack extending in the thickness direction of said cells and having a space in the upper portion thereof between adjacent cells, said unitary cells being held under pressure in the stacked direction; and a thermostat electroconductively connecting said cells in series and provided in said space.