Method for manufacturing high-pressure tank and high-pressure tank

A method for manufacturing a high-pressure tank, comprising:

• forming a preform by winding a plurality of carbon fibers around a liner to form a fiber layer on an outer periphery of the liner;
• impregnating the fiber layer of the preform with a curable resin;
• and
• curing the curable resin, wherein
• when winding the plurality of carbon fibers around the liner, the plurality of carbon fibers and a metal wire are sequentially fed from carbon fiber bobbins and a metal wire bobbin, respectively, wherein the carbon fiber bobbins and the metal wire bobbin are circumferentially spaced from each other and are arranged around an outer periphery of the liner, and the metal wire together with the plurality of carbon fibers are wound around the liner only before a thickness of the fiber layer reaches a half of a whole thickness of the fiber layer;
• and
• wherein the plurality of carbon fibers and the metal wire are wound using a single multiple filament winding machine, or wound by successively passing the liner through a plurality of multiple filament winding machines.