New energy vehicle battery technology is flourishing and entering a stage of accelerated development!

Tesla is undoubtedly the most popular and advanced all- electric car manufacturer currently. Since its launch in 2012, it has proven that electric cars can be used as daily drivers, as long as a reliable and abundant charging network is in place. Before the Model S, electric cars were considered city cars at best. As the Model S approaches its 10th anniversary, it is amazing to see how far battery technology has come.

Battery technology is also constantly developing, with improvements in capacity, packaging form, charging speed and other three-dimensional dimensions. In the past, high-energy-density ternary lithium batteries brought ultra-long battery life and stronger performance, but were slightly inferior in safety. Now battery technology has entered a stage of pursuing a balance between performance and safety. In terms of battery life, from 100 kilometers to 300 kilometers, and then from 400 kilometers to 500 kilometers, even the new generation of models has jumped to 600 kilometers, and mileage anxiety is no longer a problem.

BYD's blade battery gives new vitality to lithium iron phosphate technology

BYD considers battery safety from seven dimensions and four levels, and has corresponding protection measures in each dimension and level. Among them, the four levels refer to monomers, modules, battery packs, and systems, and the seven dimensions include reliable connection, high-voltage protection, collision, overcharging, short circuit and thermal runaway, which effectively protect battery safety in all aspects. In addition, in terms of the service life of the battery cell, the blade battery, which can reach up to 8 years and 1.2 million kilometers, also has advantages over the ternary lithium battery , which can only achieve about 1,000 cycles.

BYD's blade battery uses a square shell long cell with a flat design, with a maximum length of 2.5 meters, which is more than 10 times that of traditional lithium iron phosphate batteries

Therefore, the 1+1+1 model consisting of "space utilization", "volumetric energy density" and "heat dissipation" allows BYD's "blade battery" to have both the high energy density of ternary lithium batteries and the safety of lithium iron phosphate batteries.

CATL's ternary lithium battery is still the industry's choice

According to the information released by the Ministry of Industry and Information Technology, the domestically produced Model 3 will be equipped with lithium iron phosphate batteries from CATL for the first time. This Model 3 using domestically produced batteries should be a standard range version, and the price should continue to be cheaper. Previously, the domestically produced Model 3 was equipped with ternary lithium batteries from LG of South Korea and Panasonic of Japan, and the domestically produced CATL battery pack is 30%-45% cheaper than the imported ternary lithium batteries.

In addition, the Ministry of Industry and Information Technology shows that the new BMW iX3 is equipped with a ternary lithium battery codenamed NCM811 from CATL, and its NEDC range is expected to exceed 500 kilometers. The new Audi e-tron is equipped with front and rear dual motors with maximum power of 115 kW and 172 kW respectively, and also uses ternary lithium batteries provided by CATL .

The cobalt-free battery released by Honeycomb Energy has become a hot commodity

Honeycomb Energy has taken the lead in releasing two cobalt-free batteries, which are planned to be launched on the market as early as June 2021. One of the batteries has a NEDC range of up to 880 kilometers. Honeycomb Energy Technology Co., Ltd. was formerly the Power Battery Division of Great Wall Motors. It was completely separated from Great Wall Motors in 2018 and became an independent company called Honeycomb Energy Technology Co., Ltd. The company is mainly engaged in the research and development and product manufacturing of battery materials, battery cells, modules, battery systems, and BMS.

The emergence of cobalt-free batteries has effectively solved the demand for cobalt in ternary lithium batteries, which can reduce the production cost of batteries and allow consumers to truly benefit when buying and using cars.

Summarize:

Overall, the battery technology of new energy vehicles has been greatly improved in recent years. We have reason to believe that more powerful technology will emerge in the future. With the upgrade of battery technology, the range anxiety of electric vehicles will be basically eliminated, and the overall cost of users will also be reduced. We also hope that battery technology can accelerate the arrival of the entire electric vehicle era.