TITANIUM MATERIAL FOR SEPARATOR OF SOLID-POLYMER FUEL ELEMENT, SEPARATOR WITH ITS USE AND CONTAINING ITS SOLID-POLYMER FUEL ELEMENT Russian patent published in 2018 - IPC H01M8/02 H01M8/10 

FIELD: electricity.

SUBSTANCE: titanium material contains a plate matrix made of titanium or titanium alloy and having a roughened surface on which small protrusions are formed; the surface oxide film of coating formed on roughened surface and containing one or more oxides of titanium; and ends coating, formed on the surface oxide film of coating in areas containing the tips of small ledges, and containing one or more precious metals. The proportion of TiO [I_TiO/ (I_Ti+I_TiO)×100], determined from the maximum intensity I_TiO of diffraction peaks TiO and maximum intensity I_Ti of diffraction peaks of metallic Ti on the X-ray diffraction pattern of the surface oxide film of coating is greater than or equal to 0.5%.

EFFECT: invention allows to maintain a low resistance of contact with the electrode and a good initial efficiency of electricity generation.

6 cl, 6 dwg