摘要 |
There is disclosed a method for preparing enveloped plates for batteries which comprises introducing an active material composition into the porous envelope of an enveloped plate when the envelope is assembled on the current conducting element of the plate, characterised in that the active material composition is introduced into the envelope as an aqueous slurry which has a rotating vane viscometer torque value (which is defined in the specification) in the range 0.006 to 0.06 lbs ft at 20.degree.C. A variety of suitable active material compositions are described together with apparatus suitable for carrying out the method. |