Sharp Corporation has achieved the world's highest power density , 0.3W/cc, for direct methanol fuel cells (DMFC) for mobile equipment. This new technology enables efficient power generation from a small cell volume. Thus, the use of this technology can make it possible to develop fuel cells that have almost the same volume but a longer continuous-use lifespan than lithium-ion batteries, which are the main type currently in use. Sharp will promote further research and development for the practi