To be precise, by using renewable energy to increase production, hybrid electric vehicles can meet vehicle emission standards for more than 64 kilometers in pure electric mode; the driving method in pure electric pure electric mode can be supplied from the battery pack. Fuel, including fuel cell drive systems. Automobile manufacturers have begun to produce pure electric vehicles. Pure electric vehicles driven by battery packs are the most suitable way for short-distance travel, and the renewal of fuel cell vehicles and electric vehicles is suitable for single vehicles. The driving mode of the drive. Both the battery-driven electric method and the fuel cell have cost and pure electric challenges, and breakthrough innovative automobile technologies are required to emerge as soon as possible. The main difficulties include the following points.

　　Because engineers have consumed a lot of research and development capabilities on lithium battery packs, but battery systems that can reach 0.25 kWh/battery pack faster than can be realized. Therefore, for the medium-sized battery pack market, there is no theoretical possibility for the battery life of pure electric vehicles based on lithium-ion battery packs to exceed 300 kilometers on a single charge. There may be related products coming out, and the price is also based on the makeup capabilities of ordinary consumers.

　　The basic reduction/air or lithium battery system based on lithium lacks the necessary surface coatings and materials and cannot guarantee that the regeneration rate during the charge and discharge cycle will reach 100%. Future basic and material development. In, further verification of the development of lithium/battery batteries is required. Once confirmed by the system, the specific energy of the lithium/battery cell produced by demonstration will be improved, surpassing that of the lithium battery pack (using silicon battery pack)/carbon synthetic tail and HE-NMC811, NCNMC), and the optimization degree will be up to 1.5 times.

　　It is impossible for lithium/sulfur battery packs to achieve the desired density. In recent years, the density of industrial vehicles has increased, the density has increased, and the volume has increased, rather than the volume density. The battery pack of the battery pack has strong vitality, and the lithium/battery pack needs sufficient battery capacity. /Cm²) and very high final concentration (greater than 60%). 1.3 times.

　　In terms of specific volumetric energy density, the lithium/battery pack unit is completely inferior to the battery pack. But the battery composition cost, lithium/battery pack may have advantages, because of the additional elements that improve the life cycle and safety. If there is a surface film, the price is relatively low. If the surface film is studied and applied to inhibit the continuous consumption of the solution, the silicon material reduces the metal lithium as the main material, which may increase the energy and life cycle. Silicon introduction is still an open issue, involving any issues related to lithium, including capabilities that can be used for industrial purposes, or the toughness of mineral resources.

　　In the past ten years, fuel cells have made great progress. A new fuel cell that will increase the platinum usage of each fuel cell vehicle to less than 10 grams. Type platinum/aluminum processed by dealloying technology. The voltage cycle stability demonstrated by the catalyst has reached the stability of the US Department of Energy, which is a challenge set by the US Department of Energy. Advanced catalysts are combined with high-standard carrier materials to ensure the performance of fuel cells throughout the life of the vehicle. In addition, the quality transmission loss caused by the low platinum load needs to be more understood to better reduce the loss. Materials in a relatively low blood pressure environment help simplify system design, improve heat rejection efficiency and air breathing loss.