On April 25, the registration for the 2022 World Power Battery Assembly Power Battery Integration and Management Technology Challenge (hereinafter referred to as the "Challenge"), jointly sponsored by Tesla China, the Society of Automotive Engineers of China and the Yibin Municipal People's Government, was officially launched. The challenge is a concurrent activity of the 2022 World Power Battery Conference, the 2022 World Power Battery Conference is approved by the State Council, hosted by the Ministry of Industry and Information Technology, and the People's Government of Sichuan Province, which is a national and worldwide activity, a specific measure to implement the new development concept and implement the carbon peak carbon neutrality strategy, and will play a great role in promoting and promoting the development of the power battery industry.
As the industry's leading new energy automobile enterprise, Tesla exerts its brand appeal and actively participates in holding this large-scale event in the field of battery technology, helping to collect innovations and solutions in the structural design of power batteries, excavating and cultivating high-potential talents in power battery technology innovation, and promoting the development of the power battery industry in mainland China.
Tesla fully supports, encourages design innovation, and gathers battery talents
Recently, the General Office of the Ministry of Industry and Information Technology and other five departments issued the "Guiding Opinions on Further Strengthening the Construction of the Safety System of New Energy Vehicle Enterprises", emphasizing the importance of the safety construction of new energy vehicles and clearly pointing out that it is necessary to improve the safety protection capabilities of power batteries in various states.
Tesla attaches great importance to battery technology innovation and the improvement of power battery safety, and has become one of the organizers of this challenge. With the theme of "Core Era, Core Power, Core Future", this year's competition is aimed at participants from colleges and universities, research institutes and innovation teams across the country, providing opportunities to land innovative designs and opening up new ideas for the industry.
The competition has three parts: preliminary round, semi-final and final, and the schedule will last for about two months. College students from different colleges and universities across the country will complete the design of the battery pack through the Tesla 2170 battery cell provided by the organizer in a short period of time, which is also a huge challenge for the contestants.
At that time, the challenge review committee will be composed of 10 well-known experts in automobiles and power batteries, and 6 Tesla technical experts will be invited to form a technical guidance team in the final stage to establish a close technical guidance relationship with the participating teams and provide technical advice. Participants will challenge themselves in this competition, show their creativity and talents, and communicate with industry elites and front-line practitioners in person to gain valuable experience and inspire innovation.
With safety as the primary design goal, Tesla's battery technology has led to industry upgrades
Tesla China participated in hosting such a major event for the first time, not only to explore and cultivate outstanding talents for China's power battery industry, but also to improve the safety and efficiency of power batteries with technological innovation in actual research and development and manufacturing, and to drive the technological upgrading of the industry.
The Tesla 4680 battery, which will soon be put into production at the Texas Gigafactory, has the advantages of modularity, high compatibility, and high vehicle integration, bringing longer mileage to the vehicle, and effectively improving safety and leading the technology trend. Tesla optimized the 4680 cell high nickel cathode and silicon carbon anode material, improving the energy density of the battery cell, effectively improving the mileage, and alleviating range anxiety. Compared with the 2170 battery cell, the energy of each 4680 cell will be increased by 5 times, and the battery life will be increased by 16%. Tesla 4680 battery also uses the full polar ear winding scheme for the first time, reducing the impedance and heat generation of the battery cell and prolonging the life of the battery cell. In addition, compared with 2170 cells, the 4680 battery cell has increased its volume by 5 times and the cost has been reduced by 14%.
Regarding the performance and safety of the battery, in addition to the cell level, what is more important is the entire battery system level. Tesla's battery management technology combines higher performance while ensuring safety. For example, the HVC (high voltage controller) of Tesla vehicles meets both safety requirements and high performance goals through the combination of HVP (high voltage processor) and BMS (battery management system). Among them, the high-voltage processor is equivalent to the "haptic sense" of the battery system, responsible for inducing current, switching high-voltage switches, etc., for example, once an abnormality occurs, it can immediately trigger the intelligent fuse (Pyro Fuse), which controls the danger to a minimum; The battery management system is equivalent to the "brain", responsible for receiving all kinds of battery data from the battery, processing this information like the brain and giving the best solution, so as to diagnose battery health and behavior failures, thermal management, predict available energy and balance the battery cell, etc., on the basis of comprehensive management and protection of cell safety, to provide the best performance.
From the hardware point of view, Tesla at the battery system level, to achieve functional partitioning and achieve physical redundancy, of which the functional partition makes the software design more flexible and reliable; Physical redundancy, on the other hand, leaves room for system upgrades and enables more complex algorithms to maximize battery performance and efficiency. In software, Tesla's battery management system uses high-precision algorithms that enable batteries to perform better at the same capacity and remain stable, thereby achieving longer battery life under the premise of ensuring safety.
Power battery safety technology is the key to the healthy development of the new energy automobile industry. Tesla has always taken safety as the primary goal, and each model has taken "safety" as the starting point at the beginning of design to ensure driving safety and battery safety. By participating in hosting the challenge and actively participating in the 2022 World Power Battery Conference, Tesla has helped build the event and the conference into an important platform for industrial collaboration and a core engine for technological innovation. At the same time, Tesla also welcomes talents in power battery research and development to join and jointly contribute to the development of the global new energy automobile industry and the realization of the "double carbon" goal.