Recently, China Automotive Technology and Research Center Co., Ltd., in accordance with the new national standard GB 38031-2020 "Safety Requirements for Power Batteries for Electric Vehicles" that will be implemented from January 1, 2021, on the Lantu FREE pure electric version The equipped ternary lithium battery was tested. After testing, the battery did not emit smoke, fire or explosion after thermal runaway was triggered and sent out a thermal event alarm signal. It is also the first in China to receive the "no smoke" certification. Achievements in ternary lithium batteries. It is reported that this battery pack has entered the mass production stage, and the Lantu FREE pure electric version will be launched for the first time and will be launched and delivered in the third quarter of this year.
An Tiecheng, chairman and general manager of China Automotive Technology and Research Center Co., Ltd., said: "The production design of power batteries must take safety as the first factor and pay attention to the balance between performance and safety. China Automotive Technology and Research Center leads the formulation The new national standard GB 38031-2020 "Safety Requirements for Power Batteries for Electric Vehicles" provides specifications and guidance for power batteries to improve product quality and technical content. Compared with the national standard requirement that the heat diffusion time of the system is not less than 5 minutes, Lantu Automobile. Introducing higher goals for product safety design, Lantu FREE pure electric battery passed the most stringent 'no smoke, no fire, no explosion' test in the thermal diffusion test, verifying that the thermal safety design of Lantu automotive power batteries has been Reaching the industry-leading level."
Lantu Automobile CEO Lu Fang said: "Lantu Automobile adheres to the strict standards of building high-end cars and puts the priority on solving consumer safety concerns. On the basis of safety and cruising range, Lantu Automobile hopes to provide users with zero anxiety, safety and reliability through industry-leading thermal diffusion safety design rather than radically increasing energy density. ”
Currently, global electric vehicles mainly use lithium iron phosphate and ternary lithium batteries. Among them, ternary lithium batteries have the characteristics of high energy density and good low-temperature performance. They are often used in high-end electric brands, but they have higher safety protection and thermal management requirements than lithium iron phosphate batteries. If ternary lithium batteries want to achieve a balance between high performance and high safety, it will pose huge challenges to battery technology and research and development.
According to Dr. Huang Min, director of new energy technology of Lantu Automobile, Lantu FREE adopts a high-security battery PACK solution, taking into account the cell chemical system and structure, battery pack structure, thermal protection, safety warning, etc. , ensuring the safety performance of the power battery throughout its life cycle. Lantu FREE battery pack pioneered the "three-dimensional thermal insulation wall" technology in the industry: the battery core adopts a small unit + explosion-proof valve hard shell design, and advanced super thermal insulation technology is introduced between the battery cores to ensure that minimal energy is released after thermal runaway. The top of the battery core is introduced with a 1000°C heat-insulating and flame-retardant layer, which can effectively protect the safety of the passenger compartment.
In addition, the battery pack has an original battery safety monitoring and early warning model based on the original temperature and voltage early warning. It is reported that Lantu FREE has made a patent layout in the field of battery safety technology and testing.
Based on users’ anxiety about battery safety, Lantu Automobile has also customized and developed five major battery safety structural designs: body protection, high-strength frame, pressure transmission, deformation energy absorption and battery double insurance to maximize battery safety. Ensure battery pack safety. In the event of a slight collision, the Lantu FREE high-strength body frame and door sill structure protect the battery pack from impact; in the event of a more severe collision, the aluminum alloy frame and multiple reinforcing ribs form a battery shell protection, as well as a multiple horizontal and vertical reinforcing beams to protect the battery pack. The battery pack cross beam protection can well break down the collision pressure and effectively protect the battery pack.
In the R&D and testing process, Lantu Automobile adopts strict testing standards that are higher than those of similar-level models, striving to resolve users’ concerns about the quality and safety of electric vehicles. There are more than 20 international electric vehicle battery safety test standards. Lantu Automobile has added more than 60 items on this basis to simulate users' extreme car usage scenarios, including fire, extrusion, temperature shock, vibration shock, and bottom ball impact. , coolant leakage and other stringent battery safety tests that far exceed national standards to create a battery pack that is safe in all scenarios.
Since the release of the brand strategy in July 2020, Lantu Automobile has continued to accelerate the production of high-quality products. Lantu FREE is positioned as a zero-anxiety mid-to-large smart electric SUV. It provides two power solutions: extended-range electric and pure electric. It has 4 smart cockpit modes. The entire series is equipped with advanced intelligent driving assistance systems as standard. The extended-range electric model has a comprehensive range of 860km.
Lantu FREE is now fully open for reservations and will be available for delivery in the third quarter of this year. With the launch of Lantu FREE, Lantu Automobile will provide the new backbone with a zero-anxiety electric experience, adding new momentum to the development of new energy vehicles in China.