EP818841-A  CHEMICAL ABSTRACTS, vol. 118, no. 2, 11 janvier 1993 Columbus, Ohio, US; abstract no. 9408, SUZUKI, NOBUKAZU ET AL: "Solid-electrolyte fuel cells" XP000377041 & JP 04 218 267 A (TOSHIBA CORP., JAPAN);  CHEMICAL ABSTRACTS, vol. 90, no. 14, 2 avril 1979 Columbus, Ohio, US; abstract no. 105217, SATA, TOSHIKATSU ET AL: "Ion exchanger" XP002010753 & JP 53 123 390 A (TOKUYAMA SODA CO., LTD., JAPAN);  DATABASE WPI Section Ch, Week 8631 Derwent Publications Ltd., London, GB; Class A85, AN 86-200869 XP002028843 & JP 61 132 933 A (TOKUYAMA SODA KK) , 20 juin 1986;  PATENT ABSTRACTS OF JAPAN vol. 010, no. 147 (P-460), 29 mai 1986 & JP 60 263923 A (TOSHIBA KK), 27 decembre 1985,;  PATENT ABSTRACTS OF JAPAN vol. 016, no. 358 (C-0970), 4 aout 1992 & JP 04 110352 A (SEKISUI CHEM CO LTD), 10 avril 1992,;  S. DENIARD-COURANT ET ALL: "RELATIVE HUMIDITY INFLUENCE ON THE WATER CONTENT AND ON THE PROTONIC CONDUCTIVITY OF THE PHOSPHATOANTIMONIC ACIDS HnSbnP2O3n+5,xH2O (n=1, 3, 5)" SOLID STATE IONICS, vol. 27, no. 3, juillet 1988, AMSTERDAM NL, pages 189-194, XP002028842;  SCHUTZ P ET AL: "MATERIALS FOR MEDIUM TEMPERATURE SOLID STATE FUEL CELLS" EXTENDED ABSTRACTS FALL MEETING, HONOLULU, HAWAII OCTOBER 18-23, vol. 87, no. 2, 18 octobre 1987, pages 248-249, XP000115049EP818841-A1  CHEMICAL ABSTRACTS, vol. 118, no. 2, 11 janvier 1993 Columbus, Ohio, US; abstract no. 9408, SUZUKI, NOBUKAZU ET AL: &quot;Solid-electrolyte fuel cells&quot; XP000377041 &amp; JP 04 218 267 A (TOSHIBA CORP., JAPAN);  CHEMICAL ABSTRACTS, vol. 90, no. 14, 2 avril 1979 Columbus, Ohio, US; abstract no. 105217, SATA, TOSHIKATSU ET AL: &quot;Ion exchanger&quot; XP002010753 &amp; JP 53 123 390 A (TOKUYAMA SODA CO., LTD., JAPAN);  DATABASE WPI Section Ch, Week 8631 Derwent Publications Ltd., London, GB; Class A85, AN 86-200869 XP002028843 &amp; JP 61 132 933 A (TOKUYAMA SODA KK) , 20 juin 1986;  PATENT ABSTRACTS OF JAPAN vol. 010, no. 147 (P-460), 29 mai 1986 &amp; JP 60 263923 A (TOSHIBA KK), 27 d cembre 1985,;  PATENT ABSTRACTS OF JAPAN vol. 010, no. 147 (P-460), 29 mai 1986 &amp; JP 60 263923 A (TOSHIBA KK), 27 dcembre 1985,;  PATENT ABSTRACTS OF JAPAN vol. 016, no. 358 (C-0970), 4 ao t 1992 &amp; JP 04 110352 A (SEKISUI CHEM CO LTD), 10 avril 1992,;  PATENT ABSTRACTS OF JAPAN vol. 016, no. 358 (C-0970), 4 aot 1992 &amp; JP 04 110352 A (SEKISUI CHEM CO LTD), 10 avril 1992,;  S. DENIARD-COURANT ET ALL: &quot;RELATIVE HUMIDITY INFLUENCE ON THE WATER CONTENT AND ON THE PROTONIC CONDUCTIVITY OF THE PHOSPHATOANTIMONIC ACIDS HnSbnP2O3n+5,xH2O (n=1, 3, 5)&quot; SOLID STATE IONICS, vol. 27, no. 3, juillet 1988, AMSTERDAM NL, pages 189-194, XP002028842;  SCHUTZ P ET AL: &quot;MATERIALS FOR MEDIUM TEMPERATURE SOLID STATE FUEL CELLS&quot; EXTENDED ABSTRACTS FALL MEETING, HONOLULU, HAWAII OCTOBER 18-23, vol. 87, no. 2, 18 octobre 1987, pages 248-249, XP000115049FR2751119-A1  CHEMICAL ABSTRACTS, vol. 118, no. 2, 11 Janvier 1993 Columbus, Ohio, US; abstract no. 9408, SUZUKI, NOBUKAZU ET AL: "Solid-electrolyte fuel cells" XP000377041 &amp; JP 04 218 267 A (TOSHIBA CORP., JAPAN);  CHEMICAL ABSTRACTS, vol. 118, no. 2, 11 Janvier 1993 Columbus, Ohio, US; abstract no. 9408, SUZUKI, NOBUKAZU ET AL: &quot;Solid-electrolyte fuel cells&quot; XP000377041 &amp; JP 04 218 267 A (TOSHIBA CORP., JAPAN);  CHEMICAL ABSTRACTS, vol. 90, no. 14, 2 Avril 1979 Columbus, Ohio, US; abstract no. 105217, SATA, TOSHIKATSU ET AL: "Ion exchanger" XP002010753 &amp; JP 53 123 390 A (TOKUYAMA SODA CO., LTD., JAPAN);  CHEMICAL ABSTRACTS, vol. 90, no. 14, 2 Avril 1979 Columbus, Ohio, US; abstract no. 105217, SATA, TOSHIKATSU ET AL: &quot;Ion exchanger&quot; XP002010753 &amp; JP 53 123 390 A (TOKUYAMA SODA CO., LTD., JAPAN);  DATABASE WPI Section Ch, Week 8631 Derwent Publications Ltd., London, GB; Class A85, AN 86-200869 XP002028843 &amp; JP 61 132 933 A (TOKUYAMA SODA KK) , 20 Juin 1986;  EXTENDED ABSTRACTS FALL MEETING, HONOLULU, HAWAII OCTOBER 18-23, vol. 87, no. 2, 18 Octobre 1987, pages 248-249, XP000115049 SCHUTZ P ET AL: "MATERIALS FOR MEDIUM TEMPERATURE SOLID STATE FUEL CELLS";  EXTENDED ABSTRACTS FALL MEETING, HONOLULU, HAWAII OCTOBER 18-23, vol. 87, no. 2, 18 Octobre 1987, pages 248-249, XP000115049 SCHUTZ P ET AL: &quot;MATERIALS FOR MEDIUM TEMPERATURE SOLID STATE FUEL CELLS&quot;;  PATENT ABSTRACTS OF JAPAN vol. 010, no. 147 (P-460), 29 Mai 1986 &amp; JP 60 263923 A (TOSHIBA KK), 27 D cembre 1985,;  PATENT ABSTRACTS OF JAPAN vol. 010, no. 147 (P-460), 29 Mai 1986 &amp; JP 60 263923 A (TOSHIBA KK), 27 Dcembre 1985,;  PATENT ABSTRACTS OF JAPAN vol. 010, no. 147 (P-460), 29 Mai 1986 &amp; JP 60 263923 A (TOSHIBA KK), 27 Decembre 1985,;  PATENT ABSTRACTS OF JAPAN vol. 016, no. 358 (C-0970), 4 Ao t 1992 &amp; JP 04 110352 A (SEKISUI CHEM CO LTD), 10 Avril 1992,;  PATENT ABSTRACTS OF JAPAN vol. 016, no. 358 (C-0970), 4 Aot 1992 &amp; JP 04 110352 A (SEKISUI CHEM CO LTD), 10 Avril 1992,;  PATENT ABSTRACTS OF JAPAN vol. 016, no. 358 (C-0970), 4 Aout 1992 &amp; JP 04 110352 A (SEKISUI CHEM CO LTD), 10 Avril 1992,;  SOLID STATE IONICS, vol. 27, no. 3, Juillet 1988, AMSTERDAM NL, pages 189-194, XP002028842 S. DENIARD-COURANT ET ALL: "RELATIVE HUMIDITY INFLUENCE ON THE WATER CONTENT AND ON THE PROTONIC CONDUCTIVITY OF THE PHOSPHATOANTIMONIC ACIDS HnSbnP2O3n+5,xH2O (n=1, 3, 5)";  SOLID STATE IONICS, vol. 27, no. 3, Juillet 1988, AMSTERDAM NL, pages 189-194, XP002028842 S. DENIARD-COURANT ET ALL: &quot;RELATIVE HUMIDITY INFLUENCE ON THE WATER CONTENT AND ON THE PROTONIC CONDUCTIVITY OF THE PHOSPHATOANTIMONIC ACIDS HnSbnP2O3n+5,xH2O (n=1, 3, 5)&quot;EP818841-B1  CHEMICAL ABSTRACTS, vol. 118, no. 2, 11 janvier 1993 Columbus, Ohio, US; abstract no. 9408, SUZUKI, NOBUKAZU ET AL: "Solid-electrolyte fuel cells" XP000377041 & JP 04 218 267 A (TOSHIBA CORP., JAPAN);  CHEMICAL ABSTRACTS, vol. 90, no. 14, 2 avril 1979 Columbus, Ohio, US; abstract no. 105217, SATA, TOSHIKATSU ET AL: "Ion exchanger" XP002010753 & JP 53 123 390 A (TOKUYAMA SODA CO., LTD., JAPAN);  DATABASE WPI Section Ch, Week 8631 Derwent Publications Ltd., London, GB; Class A85, AN 86-200869 XP002028843 & JP 61 132 933 A (TOKUYAMA SODA KK) , 20 juin 1986;  PATENT ABSTRACTS OF JAPAN vol. 010, no. 147 (P-460), 29 mai 1986 & JP 60 263923 A (TOSHIBA KK), 27 decembre 1985,;  PATENT ABSTRACTS OF JAPAN vol. 016, no. 358 (C-0970), 4 aout 1992 & JP 04 110352 A (SEKISUI CHEM CO LTD), 10 avril 1992,;  S. DENIARD-COURANT ET ALL: "RELATIVE HUMIDITY INFLUENCE ON THE WATER CONTENT AND ON THE PROTONIC CONDUCTIVITY OF THE PHOSPHATOANTIMONIC ACIDS HnSbnP2O3n+5,xH2O (n=1, 3, 5)" SOLID STATE IONICS, vol. 27, no. 3, juillet 1988, AMSTERDAM NL, pages 189-194, XP002028842;  SCHUTZ P ET AL: "MATERIALS FOR MEDIUM TEMPERATURE SOLID STATE FUEL CELLS" EXTENDED ABSTRACTS FALL MEETING, HONOLULU, HAWAII OCTOBER 18-23, vol. 87, no. 2, 18 octobre 1987, pages 248-249, XP000115049