A fire incident in a new energy vehicle on June 5 has once again raised people's attention to the safety performance of new energy vehicles, and online videos and pictures show that the vehicle involved is SAIC Volkswagen's pure electric model ID.4X.
It is equipped with ternary lithium battery, CATL 811 battery, in the promotion of car companies, it not only passed the national standard, but also has excellent safety, each pure electric battery will pass 338 safety test items, more than the national standard 285 items, covering 6 major test types. But all this propaganda, after this collision, turned into great irony.
This accident is the most serious accident caused by the spontaneous combustion and fire of new energy vehicles so far. After this accident, the wind direction of the new energy automobile industry will definitely change.
1, the safety of the power battery, will be more important, although the previous car companies have said that the safety of the battery in the first place, but a collision will appear the original, it is clear that whether it is the current national standard, industry standards, or the new energy technology of various car companies, are a little unable to keep up with the demand.
It is foreseeable that in the future, both the crash test standards of new energy vehicles and the safety standards of power batteries will be improved accordingly.
2, car companies no longer blindly pursue energy density, in fact, a few years ago, the industry's crazy pursuit of energy density, deviation, now the energy density of power battery packs, has been able to meet the demand, but is the safety of power batteries, more worrying.
3, more and more car companies will turn to lithium iron phosphate batteries, although lithium iron phosphate batteries have low energy density, low temperature endurance attenuation and other problems, but it is undeniable that the safety of lithium iron phosphate batteries is indeed stronger than ternary lithium batteries, mainly reflected in the probability of thermal runaway is smaller, even if thermal runaway, it will not immediately deignite like ternary lithium batteries, and will leave enough time for occupants to escape.
4, more and more car companies, will focus on range extender and plug-in hybrid models, the technical bottleneck of the power battery currently looks very solid, it is difficult to break through at this stage, and the oily and electric range extender and plug-in hybrid technology may be the optimal solution for new energy vehicles.
Like Passat's shocking collision test in the China Insurance Research Institute, which awakened consumers' rational cognition of safety, this collision and fire incident may also promote the progress and change of the entire industry, pushing consumers to rethink, what kind of new energy vehicle do I need, and behind these two incidents are SAIC Volkswagen. While hoping that the deceased will rest in peace, we also hope that the industry, car companies, and consumers can learn from this tragedy and make our electric vehicle products safer and more trustworthy.