Toyota Boshoku has started production of fuel cell parts to be used in the all-new ‘Mirai’ hydrogen fuel cell vehicle that has been unveiled by Toyota and goes on sale in Japan in December.
Toyota Boshoku says it will expand its business to manufacture key powertrain parts for this next-generation vehicle.
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Specifically, Toyota Boshoku has started production of separators, which are sheet-shaped parts made from titanium. The hydrogen microchannel configuration in fuel cells has been achieved by employing Toyota Boshoku’s proprietary precision stamping technologies, helping enhance electricity generation efficiency.
This production method was made possible by applying high-precision, high-speed stamping technologies that represent one of Toyota Boshoku’s core assets. The company’s proprietary precision die technologies are used in the integrated process from manufacture of dies to production. The precision production technologies, which were established for automotive seat frame components and then applied to the manufacture of motor core components for hybrid systems, have been further applied to the new field of fuel cells.
Toyota Boshoku has also developed stack manifold that is used for the fuel cell stack. Large aluminium parts and resin parts are insert-moulded to reduce thickness, helping reduce the overall size of the fuel cell stack.
