Recently, China Automotive Innovation, aka CAIC, has independently developed their own fuel cell stack at 120kW. To kick off its application, they sought out to Kewell to find ultimate solution. . This high-power fuel cell stack was designed and developed by CAIC on their own, featuring many core technologies and intellectual properties. The stack adopts the integrated manufacturing technique of injection molding, which simplifies its structure and optimizes the overall assembly solution while maintaining the performance of the stack. . The 150kW stack test system, on the other hand, was independently developed by Kewell. It was designed to provide a stable test platform for fuel cell stack. At the site of CAIC, the stack test system had successfully helped its test object to reach to 120kW for the first run, with peak power as much as 140kW. The testing was smooth with normal control over the water temperature.

Battery performance continues to decay as we use it, primarily in respects of capacity fading, power level dropping, and rising internal resistance etc. Internal resistance, in particular, is prone to the influence of working conditions including temperature and depth of discharge.