Battery technology continues to evolve. Fire, explosion will be the history!
The BYD blade battery was officially released in March 2020. Acupuncture does not cause fire or explosion. It is now March 2021, which is the first anniversary of the blade battery.
During this year, battery companies have been committed to battery safety, and various battery technologies have continued to make progress. Up to now, even the ternary battery system is not afraid of needle sticks.
The blade battery uses lithium iron phosphate material, which has its own safety advantages. So, which ternary batteries have made great progress in safety?
On March 17, Lantu Motors conducted a comprehensive interpretation of the ternary lithium battery pack carried by its first mass-produced model, Lantu Free, through an online technology sharing session.
Lantu Automobile said that Lantu FREE battery packs have three main advantages: the first "three-dimensional thermal insulation wall" technology, the original BMS battery safety monitoring and early warning model, and the high-safety battery PACK program. With the blessing of these three black technologies, the new battery pack will not emit smoke, fire, or explode after the thermal runaway is triggered and the thermal event alarm signal is issued.
On March 10th, GAC Ion released a new generation of power battery safety technology-magazine battery system safety technology. Based on the design idea of "preventing short circuits in the cells, preventing thermal runaway after short circuits, and preventing heat spread after thermal runaway", the magazine battery adopts a design similar to a safety compartment, which can effectively prevent the spread of out-of-control cells, and when detected When the battery cell voltage or temperature is abnormal, the battery quick cooling system will automatically start to cool the battery.
GAC Ion also released a test video from the China Automotive Technology Research Center, which carried out acupuncture thermal diffusion tests on the entire package of ternary lithium batteries equipped with the safety technology of the magazine battery system. The test results showed that 5 minutes after the thermal accident signal was sent for the entire magazine battery pack during the test, only a short period of smoke appeared, without fire or explosion.
It is reported that GAC Aian’s batteries are provided by AVIC Lithium Battery, which is a ternary battery.
In December 2020, Honeycomb Energy released a systemic solution for thermal runaway on its battery day-Lengfeng, which completely solved the thermal runaway of the battery system through original technologies at four levels: materials, batteries, battery packs, and monitoring systems problem.
Xinwangda also announced that it has successfully developed a "smoke but no fire" battery pack, and it can pass the "heating trigger cell thermal runaway experiment", that is, after a single battery cell is triggered to cause thermal runaway, the entire battery pack will only emit smoke but not fire .
Ningde Times stated in October 2020 that it has developed a "smoke without fire" ternary battery. Through high-safety electrolyte and thermal expansion isolation technology, it directly hits the pain points of high energy density and high safety and can ensure battery packs. No burning, even if one battery cell catches fire, the entire battery pack will only emit smoke.
The advancement of various technologies will jointly promote the further development of new energy vehicles, which is conducive to the early replacement of fuel vehicles by new energy vehicles!