Hydrogen lime technology is an internationally leading cost-effective full-scene solution for vehicle-scale "hydrogen power system" and one of the core technical routes of Great Wall Motors 'Lemon Platform. Its characteristics can be summarized as "1+3+5", that is, a complete set of vehicle-level R & D system, 3 major technical platforms and 5 major performance advantages. This system covers hydrogen fuel cell systems, fuel cell stacks, vehicle-mounted hydrogen storage systems and key components are the technical core of Great Wall Motors 'hydrogen energy strategy.