Although there are hundreds of power battery companies in China, only the Ningde era has entered the international market, and its market share is relatively small. Therefore, more Chinese battery companies like the CATL era are needed to fully compete with Japanese and Korean battery giants such as LG, Samsung, and Panasonic. This requires Chinese battery companies to further improve product quality and technological level.

　　China's power battery company Ningde Times is conquering cities in the international market.

　　A few days ago, at the Beijing Auto Show, Nissan announced that it will release 20 electrified models to the Chinese market in the next five years. Among them, Dongfeng Nissan’s first domestic pure electric model is Sylphy · Pure Electric SYLPHYZeroEmission, and this pure electric version of the model will be It uses batteries from the Ningde era.　　 Following Nissan, the international car brand Daimler also announced that Daimler Group has signed a contract with CATL, which has officially become Daimler’s battery supplier.

　　In fact, in addition to the aforementioned car companies, CATL has also signed a letter of intent for strategic cooperation with British luxury car companies Jaguar Land Rover and Byton Motors. The two parties will actively explore future in-depth cooperation in the field of automotive battery technology, and jointly research and develop automotive power batteries. technology.

　　Objectively speaking, CATL has taken rapid development in the international power battery market, which will help consolidate its market share at home and abroad, and at the same time widen the gap in competition with other Chinese battery companies. The status of Shanghai is also expected to be further improved.

　　1, Mercedes-Benz S-Class cars will be equipped with 48V lithium battery thermal management solutions

　　The global innovative thermal management technology developer and market leader Jewin recently announced that the industry’s first 48V lithium battery thermal management (BTM) solution based on thermoelectric technology will be applied to the latest Mercedes-Benz S-Class models. The solution will also be applied to other subsequent models. This highly innovative solution based on thermoelectric technology has been completely integrated as a structural component in the battery case, and can heat and cool sensitive lithium battery cells, so that the battery maintains better performance under extreme conditions and extends this Service life of high-value components.

　　Comment: Under the dual-point policy in China and the development trend of global auto electrification, electric vehicles have become a new area of competition for major auto companies. However, there is still a long process to transition from fuel vehicles to electric vehicles. Therefore, the 48V micro-hybrid power system that can greatly save costs has become a more feasible solution. At present, auto parts manufacturers including Bosch, Jiewen, Wanxiang, and Continental are actively entering the market. However, the development of 48V system batteries is difficult and the threshold is high. It is destined that not many companies can get a share in this field.　　2, adding nanowires can reduce the flammability of lithium batteries

　　The American Chemical Society journal "NanoLetters" published an article that scientists have discovered that nanowires can not only reduce the flammability of lithium-ion batteries, but also enhance battery performance.

　　The team mixed polymer electrolytes with 5%, 10%, 15%, and 20% by weight of magnesium borate nanowires, and found that the nanowires can enhance the conductivity of the electrolyte. The electrolyte can withstand more stress, making the electrode surface more stable.

　　However, the researchers also said that although nanowires greatly improve conductivity and fire resistance, they still cannot operate stably at room temperature. There is still a long way to go before commercialization, and further research is needed.

　　Comment: At present, in order to further improve the safety of lithium-ion batteries, power battery companies and material companies are actively looking for safer materials and technical solutions to start fires with lithium batteries. Among them, the use of solid electrolyte is recognized as one of the feasible methods. The team is adding nanowires to solid electrolytes to achieve fire protection effects. Although the research has not yet been maturely applied, the correct direction is worthy of encouragement and expectation.

　　3, the Japanese government and companies will jointly develop all solid-state batteries

　　Foreign media reported that the Japanese government will work with private companies to promote the development of a new generation of pure electric vehicle (EV) batteries. The Ministry of Economy, Trade and Industry of Japan will contribute 1.6 billion yen to the "Lithium Battery Materials Evaluation and Research Center (LIBTEC)", a technology research association in which materials manufacturers Asahi Kasei and Toray participate. Toyota, Nissan, Honda and other large car companies as well as battery manufacturers such as Panasonic and GSYUASA will also join the development of LIBTEC to develop all-solid-state batteries.

　　In the field of all-solid-state batteries, Toyota's research is considered to be the most advanced in the world, but it has not yet been put into practical use. Therefore, companies in various industries from automobiles, batteries to materials will build a framework for cooperation and accelerate research and development. We will use solid materials that are more difficult to use in batteries than liquids, advance the development of improved performance, and formulate safety evaluation standards.

　　Comment: Solid-state batteries have been recognized by the industry as the next generation of new power battery technology, and research in this field is being carried out around the world. This time, the Japanese government has allocated funding for the joint research and development of solid-state batteries with a series of leading lithium battery related companies such as Toyota, Asahi Kasei, and Panasonic.

　　The Japanese approach is worthy of the Chinese government and enterprises to ponder and learn. We must concentrate our efforts on speeding up research and development in the field of solid-state batteries, otherwise we will be at a disadvantage in the future market competition.