A fuel cell system is comprised of a fuel cell module including sub-stacks of series-connected fuel cells, the sub-stacks being held together in a stacked arrangement with cold plates of a cooling means located between the sub-stacks to function as electrical terminals. The anode and cathode terminals...http://www.google.fr/patents/US4310605?utm_source=gb-gplus-shareBrevet US4310605 - Fuel cell system