Abstract: A fuel cell membrane is described comprising at least one sulfonated aromatic polyether copolymer comprising a poly-arylen-ether-ketone (PEK) moiety or sulfonated derivatives thereof, deriving from spiro-bis-indane or 4,4?-(hexafluoroisopropylidene)diphenol (BPAF), and an arylene-sulfone, or an arylene-ketone or sulfonated derivative thereof; said copolymer having the following formula (1): wherein Ar1 has formula, wherein X is spiro-bis-indanile (SBI) (b) or BPAF (c) having formulas: and wherein Y is H or SO3H, and Ar2 has formula wherein W is CO or SO2, and Y is H or SO3H, wherein Z is OH or Cl; and wherein at least one between Ar1 or Ar2 comprise at least one sulfonic group; and wherein n is an integer comprised between 2 and 50. A method for the production of such membrane is also described.

Abstract: A fuel cell membrane is described comprising at least one sulfonated aromatic polyether copolymer comprising a poly-arylen-ether-ketone (PEK) moiety or sulfonated derivatives thereof, deriving from spiro-bis-indane or 4,4?-(hexafluoroisopropylidene)diphenol (BPAF), and an arylene-sulfone, or an arylene-ketone or sulfonated derivative thereof; said copolymer having the following formula (1): wherein Ar1 has formula, wherein X is spiro-bis-indanile (SBI) (b) or BPAF (c) having formulas: and wherein Y is H or SO3H, and Ar2 has formula wherein W is CO or SO2, and Y is H or SO3H, wherein Z is OH or Cl; and wherein at least one between Ar1 or Ar2 comprise at least one sulfonic group; and wherein n is an integer comprised between 2 and 50. A method for the production of such membrane is also described.

Abstract: A device (1; 1′; 13″; 100; 150; 170) for connecting at least one lath element (13′; 13″), the device (1; 1′; 13″; 100; 150; 170) being characterized by having a main outer body (2; 101) formed in one piece from a first material, and at least one resisting element (15; 102; 155; 174) having connecting means (10′, 10″, 11′, 11″, 12′, 12″; 110, 111; 151b, 151d, 152b, 152d, 153b, 153d, 154b, 154d; 171a, 171d, 172a, 172d, 173a, 173d) for connecting the lath element (13′; 13″); the resisting element (15; 102; 155; 174) being defined by a number of parts (6, 7, 8; 151, 152, 153, 154; 171, 172, 173) substantially housed inside the main outer body (2; 101), and being made of a second material, other than the first material, for resisting mechanical stress.