Japanese companies will jointly develop solid-state batteries

China's power battery company Ningde era is attacking the city on the international market.

Recently, at the Beijing Auto Show, Nissan announced that it will introduce 20 electric models to the Chinese market in the next five years. The first domestically produced pure electric vehicle of Dongfeng Nissan is Sylphy·SYLPHYZeroEmission, and this pure electric version will be Adopt the battery of Ningde era.

Following Nissan, the international car brand Daimler also announced that Daimler Group has signed a contract with Ningde Times, which officially became Daimler's battery supplier.

In fact, in addition to the above-mentioned car companies, Ningde era also signed a strategic cooperation letter of intent with the British luxury car companies Jaguar Land Rover and Baiteng Automobile. The two sides will actively explore the future cooperation in the field of automotive battery technology, jointly research and development of automotive power batteries. technology.

Objectively speaking, Ningde era has already made rapid progress in the international power battery market, which will help to consolidate its market share at home and abroad, while at the same time widening the competition gap with other Chinese battery companies. China's power battery companies are international. The status of the above is also expected to be further enhanced.

Ningde era can be regarded as a microcosm of the development of China's power battery industry. It took only a few years from the founding to the top of the world's power battery shipments, reflecting the development speed of China's power battery quality and technology. The gap between China and Japan and South Korea in the field of power batteries is gradually narrowing.

The attention of the residence is that although there are hundreds of power battery companies in China, only the Ningde era has entered the international market, and the market share is relatively small. Therefore, it is necessary to have more Chinese battery companies like Ningde era, in order to fully compete with Japanese and Korean battery giants such as LG, Samsung, Panasonic, etc., which requires Chinese battery companies to further improve product quality and technology.

Let's take a look at what new technologies and events are happening in the lithium battery industry this week.

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

The world's innovative thermal management technology developer and market leader Jie Wen has announced that the industry's first thermal power technology based 48V lithium battery thermal management (BTM) solution will be applied to the latest models of the Mercedes-Benz S-Class sedan, such The solution will also be applied to subsequent models.

This highly innovative solution based on thermoelectric technology has been fully integrated into structural components in the battery housing and is capable of heating and cooling sensitive lithium battery cells, allowing the battery to maintain better performance under extreme conditions and extending this High value component life.

Comments: Under the dual-point policy of China and the development trend of global automotive electrification, electric vehicles have become a new field of competition for major auto companies. However, there is still a long process from the complete entry of the fuel vehicle into the electric vehicle, so the 48V micro-hybrid power system that can greatly save the cost becomes a more feasible solution. At present, auto parts manufacturers including Bosch, Jiewen, Wanxiang and Continental are actively entering the market. However, the 48V system battery development is more difficult and the threshold is higher, which is bound to not have too many companies to take a share in this field.

2, adding nanowires can reduce the flammability of lithium power batteries

According to the American Chemical Society journal NanoLetters, scientists have found that nanowires not only reduce the flammability of lithium-ion batteries, but also enhance battery performance.

Tao Xinyong, a material scientist at Zhejiang University of Technology, and his team have produced magnesium borate nanowires, which have good mechanical properties and electrical conductivity, and are a non-polluting, low-toxic flame retardant that improves the stability of the fire-resistant carbon layer. The team conducted research to place magnesium borate nanowires in solid polymer electrolytes to improve battery safety.

The team mixed the polymer electrolyte with 5%, 10%, 15% and 20% by weight of magnesium borate nanowires, respectively, and found that nanowires enhance electrolyte conductivity and are newer than electrolytes without nanowires. The electrolyte can withstand more stress and make the electrode surface more stable.

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

Comments: At present, in order to further improve the safety of lithium-ion batteries, power battery companies and materials companies are actively looking for safer materials and technical solutions to cause lithium power batteries to catch fire. The use of solid electrolytes is one of the accepted methods. The team is adding nanowires to solid electrolytes to achieve fire protection. Although the research is not mature enough, the direction is not worth encouraging and anticipating.

3. The Japanese government and enterprises will jointly develop all-solid 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 invest 1.6 billion yen in the lithium battery Materials Evaluation and Research Center (LIBTEC), a technology research association attended by materials manufacturers such as Asahi Kasei and Toray. Major manufacturers such as Toyota, Nissan and Honda, as well as battery manufacturers such as Panasonic and GSYUASA, will also join the development of LIBTEC to develop all-solid batteries.

In the field of all-solid 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 from various industries, from automobiles to batteries to materials, will build a cooperation framework to accelerate research and development. The use of solid materials that are more difficult to use in batteries than liquids will be used to advance the development of performance and to establish safety evaluation standards.

Comments: 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. The Japanese government has jointly developed a series of top lithium battery related companies such as Toyota, Asahi Kasei and Panasonic to jointly develop solid-state batteries. This shows that Japan intends to take the lead in achieving breakthroughs and maintain its competitive edge in the field of automotive power batteries.

Japan's approach is worthy of deep thinking and learning by the Chinese government and enterprises. We must concentrate on accelerating R&D in the field of solid-state batteries, otherwise it will be at a disadvantage in future market competition.

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