Entering 2022, the new energy vehicle market continued the trend of the previous year, the growth trend is more and more obvious, according to the data of the Federation of Passenger Vehicles, in February this year, the retail sales of new energy passenger cars in the Chinese market reached 272,000 units, an increase of 180.5% year-on-year, and the penetration rate also reached 21.8%.
The heat of the new energy market makes the public have more research and judgment on new energy vehicles, according to statistics, in addition to vehicle prices, consumers give priority to the endurance and safety performance of vehicle batteries. In this context, the models of major brands are working battery technology and safety. However, combined with the actual situation, Xiaobian believes that in the end, Cadillac LYRIQ has stood in the leading position.
1 Security comes from the underlying technology, and the Aotene platform empowers LYRIQ
In April last year, McKinsey released the "2021 McKinsey Automotive Consumer Insights" report, which shows that Chinese consumers' acceptance of new energy vehicles has become increasingly high, but their concerns have not decreased but increased in dimensions such as new energy vehicle safety (mainly battery safety) and battery life. So what are the influencing factors of battery safety?
It is often said in the industry that in the electric vehicle market, the platform determines the performance, cost, safety, scalability and flexibility of the product, and the platform is the "weapon" that can determine the victory or defeat in the future competition of the automotive industry. When it comes to the pure electric platform that is widely known on the market for its leading performance, it has to be said that the Aoteneng platform is equipped with LYRIQ.
The battery cells of the Aoteneng platform are deeply involved in the design of chemical systems and the development of performance, whether it is thermal stability or high energy, it has achieved the industry-leading level, and also uses a new generation of aerogel aerospace-grade nanomaterials to reduce heat transfer between cells and reduce the risk of spontaneous combustion of batteries.
In other words, in the problem of thermal runaway battery that pure electric models are most afraid of, Cadillac LYRIQ can give you absolute peace of mind.
In addition, in terms of physical protection, the battery shell of the Aoteneng platform has ultra-high strength, of which high-strength steel accounts for 61%, ultra-high-strength steel accounts for 37.5%, which is the highest in the industry, which also makes the LYRIQ vehicle with battery shell torsional stiffness of 35KN m/deg, leading the same level, even in the face of the most extreme unexpected situation, LYRIQ can still ensure the stability of the battery structure.
At the same time, thanks to the Aoteneng platform, Cadillac LYRIQ also adopts the industry-leading battery management system - wBMS wireless battery management system, which reduces the wiring harness of the battery pack by 90%, reducing weight and bringing a lower failure rate.
Through in-depth development of batteries, the introduction of safer battery technology, the creation of a harder protective housing and a better battery management system, the Aoteneng platform deeply empowers LYRIQ to carry out battery safety to the end.
02 Needle punch, drop, squeeze all clearance, LYRIQ shows super high safety capabilities
Of course, there is no basis for the rhetoric, let's use practical cases to see how safe cadillac LYRIQ's batteries really are.
For example, last year's well-known acupuncture experiment, in the experiment will use a diameter of 5-8mm high-temperature resistant steel needles at a certain speed vertically through the geometric center of the battery, resulting in the battery's positive and negative poles directly connected to the short circuit phenomenon, then the battery will generate a lot of heat, which poses a high challenge to the structure of the battery cell and technological innovation. And because the difficulty is too large, the acupuncture experiment has good reference significance for verifying the stability of the power battery in extreme cases.
Thanks to the leading strength, Cadillac LYRIQ dared to face the acupuncture experiment, as can be seen in the official release video, with the help of the China Automotive Technology and Research Center, cadillac LYRIQ's battery was placed in a 48 ° incubator in advance (the national standard is more than 0 °), and then pierced into the battery pack with a steel needle 9mm, and the battery cell was thermally out of control.
At the moment of runaway triggering, the exhaust channel of the Cadillac LYRIQ battery quickly discharges high-temperature gases, and the temperature of the cell drops steadily after reaching a peak in a short period of time, and finally tends to room temperature. The whole process of the battery pack did not catch fire, did not explode, the state remained stable; after 50 minutes of standing (the national standard is 5 minutes), the battery pack still did not heat up, no heat diffusion occurred, Cadillac LYRIQ battery perfect clearance needle prick experiment.
Of course, cadillac LYRIQ's strength is far more than this, in addition to the smooth clearance of the needle piercing experiment, the battery drop experiment and the battery squeeze test are also well grasped.
Among them, the drop experiment is mainly to simulate the stability performance of the battery after various accidental collisions of new energy vehicles, and the main test is the design structure of the battery.
In the experiment, the LYRIQ battery was hoisted to a height of 2 meters from the ground and then released from the fall (the national standard is 1m), from the video results, the battery pack structure remained intact after the LYRIQ battery fell, no electrolyte leakage, no fire, no explosion, and the stability was extremely high.
The squeeze test is mainly to simulate the state of the battery pack after the side collision of the vehicle, from the test results, even if the pressure value of the national standard (300KN) is squeezed by three times the national standard (300KN), the battery pack still maintains a stable performance, and only a slight deformation occurs externally.
In addition to being the industry leader in battery safety, LYRIQ is also unyielding in terms of battery performance. Through the BEV heat efficient integrated thermal management system, it can achieve the best balance of energy consumption, such as for the winter warm air problem that consumers are concerned about, measured in the environmental state of -10 °, LYRIQ only takes 2 minutes, the air outlet temperature can reach 45 °; and its Pre-Condition precharge heating can convert the charging pile energy into thermal energy stored in the battery.
Of course, for the problem of winter battery life, with the help of its self-developed industry-leading patented algorithm, Cadillac LYRIQ can accurately display the remaining power and mileage, so that users can travel more at ease.
Write at the end:
Safety is the bottom line that all car manufacturers can not violate is also the main line, through continuous innovation in technology, continuous iteration in the standard, SAIC-GM finally created a leading industry in all dimensions of the Otone platform, based on this leading platform advantage, Cadillac LYRIQ has also shown strong competitiveness, especially in the safety dimension, redefining what is safety is the greatest luxury.