Ledjeff, K.K.LedjeffNolte, R.R.Nolte2022-03-082022-03-081998https://publica.fraunhofer.de/handle/publica/303873The invention relates to an electrochemical cell comprising at least one strip diaphragm forming a core area, said strip diaphragm consisting of at least two, maximum 10,000, flat individual cells, each formed from an electrode layer applied on both sides of a diaphragm made of a solid polymer electrolyte and a corresponding number of flat electronically conductive regions, whereby the individual cells are switched in series and the core area is arranged in the cell with a suitable periphery.de608621697patent1993-4325353