| 摘要 |
1513019 Making storage batteries GOULD Inc 1 July 1975 [8 July 1974 18 June 1975] 27643/75 Heading H1B A water-activatable Pb-acid storage battery is manufactured by a process which comprises the steps of (a) forming the battery plates, (b) deep discharging the plates, and (c) reducing the amount of electrolyte contained in the plates to within the range of 10% by volume (of the total electrolyte capable of being added to the assembled battery) to the amount of electrolyte retained by the saturated plates, whereby the amount of sulphate resulting from step (b) and the residual H2SO4 electrolyte retained within the plates combine, on the addition of water and charging, to yield an end-of-charge electrolyte having an acceptable specific gravity. Step (a) may be carried out using a high specific gravity formation electrolyte so as to ensure the final acceptable specific gravity, or the plates may be brought into contact with a "development electrolyte", before or after step (b), to increase the specific gravity of the residual electrolyte retained in the plates. The battery plates may be brought into contact with a conditioning amount of metallic (e.g. sodium) sulphate to enhance the shelf life and the ability of the battery to accept the reuuired charge after water addition. The amount of electrolyte may be reduced by step (c) to the amount retained by the plates merely by inverting the battery, it may be reduced to less than this by centrifuging. |
