a recombinant battery in which fibrous sheets as described above serve as plate separators is also disclosed as is a method for producing a recombinant battery which includes the steps of assembling a plurality of electrodes with such sheet separators in a case flooding the electrodes in the case with an electrolyte removing electrolyte that is not absorbed by the sheet separators from the case and closing the case finally a recombinant battery in a case which has an opening is also disclosed the opening is closed by a thin film of polyethylene or the like through which hydrogen can escape at a faster rate than oxygen application_number US 26170088 A description with reference to fig1 a single cell battery with a total of seven plates is indicated generally at 10 the battery 10 comprises three positive plates 12 which are electrically connected to a positive terminal 14 and four negative plates 16 electrically connected to a negative terminal 18 the plates 12 and 16 are housed within a battery case 20 which is covered by a top 22 an opening is defined in the top 22 by a boss 24 separators 26 are positioned between each positive plate 12 and each negative plate 16 the separators 26 comprise sheets of separator material that are wrapped around the bottom of each positive plate 12 and cover both faces of each positive plate 12 referring now to fig2 the constituents of a separator 26 are schematically represented the separator material comprises first fibers 28 which have an absorbency as defined hereinbelow for electrolyte which is high i e greater than 90 percent and further comprises second fibers 30 which have an absorbency for electrolyte which is low i e less.