|4745039||Sealed lead storage battery|
A sealed lead storage battery including at least one negative electrode plate capable of absorbing oxygen gas generated from a positive electrode plate during recharging thereof, which battery comprises a battery casing having a breathing hole defined the...
|4664994||Enclosed lead storage battery and process for producing the same|
The present invention provides an enclosed lead storage battery comprising a plate assembly consisting of a positive plate, negative plates and a separator, an electrolyte held in position by the plate assembly, and a jacket made of film- or sheet-formed ...
|4659636||Sealed storage battery|
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 accomm...