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[YesAuto Electric Vehicle Technology] The energy crisis is undoubtedly a common problem faced by people all over the world, and the automotive industry has attracted much attention. Various car companies “Eight Immortals Crossing the Sea and Their Magic Powers” have shown their new energy solutions, such as pure electric , Hybrid power, fuel cell and other technologies, and their definitions of future new energy vehicles are not the same. BAIC New Energy Automobile is a branch that believes in the “tribe” of pure electric vehicles. And what kind of technological foundation does this new energy automobile company, which has only been established for more than a year, compete for the “soup” of electric vehicles? Let's get to know it together.

● Current mass-produced models of BAIC New Energy Automobile

● Why choose pure electric?

There are many sources of power for automobiles. BAIC New Energy believes that compared with traditional fuel, hybrid power, fuel cells, etc., pure electric vehicles are a solution to truly achieve zero emissions and zero pollution, and the later use and maintenance costs Also lower, the technical prospects are brighter.

● Core technology 1: Compared with Tesla, it uses a fundamentally different motor

As one of the core components of electric vehicles, the importance of motors is beyond doubt. BAIC New Energy Automobile Co., Ltd. and Dayang Electric have established a joint venture of BAIC Dayang Electric Motor Factory to provide electric motors for BAIC New Energy Vehicles.

● The difference between new energy vehicle motors and ordinary motors

Compared with ordinary motors, the motors used in BAIC's new energy vehicles have stronger protection capabilities and can adapt to harsher environments. During the development process, experiments such as dust and salt spray must be carried out to ensure its reliability. Resistant to “made”.

● Core technology 2: Application of ternary lithium battery

Currently, BAIC New Energy’s E150EV uses lithium iron phosphate batteries, while the latest 200EV and ES210 models use ternary lithium battery technology. Compared with lithium iron phosphate batteries, ternary lithium batteries have higher energy density and better low-temperature performance, and with the development of technology, their disadvantages of poor stability have gradually been weakened. The person in charge of the BAIC Battery Factory stated that there is little room for improvement in the energy density of lithium iron phosphate batteries, and there is still room for development of ternary lithium batteries. Therefore, looking at the future, lithium iron phosphate batteries will gradually lose their energy density requirements. High competitiveness in the passenger car market.

BAIC New Energy's ternary lithium battery technology originated from South Korea's SK company. This company not only focuses on the chemical industry, but its position in the petroleum and communications fields in South Korea is just like that of my country's PetroChina and China Mobile.

Low-voltage connector (LV) is mainly used to supply low-voltage power to the communication system on the vehicle, while high-voltage connector (HV) is to provide high-voltage power to the motor. The safety device (MSD) will automatically disconnect when the battery is overheated or short-circuited to prevent danger.

● Charging method

BAIC New Energy Vehicles currently has two charging methods: fast charging and conventional (slow) charging, as well as the technology of fast battery replacement. The battery should be charged immediately when the power is 20%-30%. Generally, it takes 5-8 hours to fully charge the battery at a slow rate, and it can be fully charged in half an hour with a fast charge.

to sum up:

At present, one of the most concerned issues of electric vehicles is its cruising range. From the product point of view, the BAIC New Energy EV200 model that uses a ternary lithium battery already has a very good cruising range. I believe it will follow. With the continuous update of ternary lithium battery technology, it will have a better performance. Once the ternary lithium battery era comes, BAIC New Energy's early accumulation of technology will also give it an advantage in the future new energy field.