In addition, since significant amounts of natural resources, such as lithium, nickel, cobalt, graphite, neodymium, and dysprosium, are used for producing storage batteries and motors, materials with lower supply chain risks must be developed to overcome constraints on resource availability, and issues related to recycling must also be addressed.
Overall architecture and key technologies of drive systems of new energy vehicles. 3.3.1. Drive motor design technology As an electrical-mechanical energy conversion device, the drive motorperformance is directly related to the dynamic performance of the vehicle.
It is especially important to develop small lightweight storage batteries and motors for light and commercial vehicles which face restrictions in terms of vehicle body design and whose pricing is an important issue for consumers.
As a result, several key enterprises have emerged in each of the battery component fields including Easpring and Ronbay in anodes, Shanshan and BTR in cathodes, Capchem, and Tinci in electrolytes, and Shenzhen Senior and Yunnan Energy New in separators (Industry representative 12).
In terms of the guidance of the search (F4), due to the biased subsidy scheme largely in favor of higher energy density battery technologies, Lithium-manganese-cobalt-oxide (NMC) batteries have become increasingly important due to their high energy density (150–220 Wh/kg compared to around 90–160 Wh/kg for LFP).
The electric vehicle has a variety of powertrain architectures, the connections between the motor and the transmission or other drive mechanisms are diverse. The common battery electric vehicle structure and its powertrain system are shown in Fig. 3.1.