A method for manufacturing a low-cost metal gas diffusion layer for a fuel cell excellent in electron conductivity and water repellency is proposed. The manufacturing method includes step (A) in which a conductive layer of carbon film layer is formed on th...

A lead alloy coating (24) for a positive grid (20) of a lead acid battery (52) is provided. The lead alloy coating includes a tin content of at least about 0.1%, but not more than about 3%; and a residual lead content. The lead alloy coating optionally inc...