The components for membrane fuel cells are classified according to their operating modes and fields of application. FuMA-Tech supplies fully fluorinated, partial fluorinated or hydrocarbon polymer membranes for low-temperature fuel cells operating at low humidifcation and temperature levels up to 85°C (type 1). These membranes are used in the low performance range of portable applications in particular.
FuMA-Tech supplies the well-known inorganic-organic hybrid membrane (type 2) for medium-temperature fuel cells operating at up to 125°C and without external humidification as far as possible. These membranes are to be used particularly in stationary and mobile applications as well as in vehicle power supply in so-called auxiliary power units (APU). FuMA-Tech has widely secured this field of application in particular by patent protection.
The current development work on dry proton conductors (type 3) is being continued to allow application in high-temperature fuel cells operating at up to 180°C without water. Since 2005, FuMA-Tech also supplies polymers and membranes made of ABPBI for purposes of phosphoric acid doping.
Particular significance is given to direct methanol fuel cells (type 4) for portable applications in the low-performance range. In this case, the influence of the membrane, in addition to catalyst loading, can be considered decisive for the power spectrum of a cell. The new fluorine-free hydrocarbon membranes based on inorganic-organic nano-particles in multi-matrix technology are characterised by low water and methanol transport at marginal membrane thickness.