If the lithium battery of the toy car is broken, Will explode?？

First of all, if the lithium ions are not completely combined with carbon to form lithium crystals, the lithium ions are all in a stable state and will not react with the air due to lithium.Lithium, even though, is not the main cause of combustion.The reason for spontaneous combustion is due to the toy car charging polymer soft pack lithium battery is destroyed, 1, metal weapon caused by the toy car charging polymer soft pack lithium battery short circuit;2, external force damage caused by diaphragm damage, resulting in short circuit of the toy car charging polymer soft bag lithium battery.DC short circuit when the heat is huge, resulting in the toy car charging polymer soft bag lithium battery thermal control, thermal control will be in millisecond level time temperature rises to more than 300 degrees Celsius.Lithium toy car charging polymer soft pack lithium battery is the most important flammable electrolyte, in the absence of flame retardant (in fact, each product has flame retardant), the electrolyte ignition point is about 130 degrees Celsius.

At present, the occurrence of large electric vehicle accidents, in the final analysis, the toy car charging polymer soft pack lithium battery was damaged, the electrolyte outflow and combustion caused.
But also technical system, known as lithium ion toy car rechargeable polymer lithium battery roughly divided into soft packages for lithium cobalt and lithium manganese, three yuan, lithium iron, etc., including lithium cobalt and three yuan thermal runaway of the temperature is below 300 degrees Celsius, about 400 degrees Celsius, lithium manganese lithium iron is higher than 700 degrees Celsius, and recently iron lithium manganese binary products, according to difference of doping,
Thermal runaway critical at 400-600 degrees Celsius.So there's a big difference, and that's one of the reasons why lithium iron is safe.

Therefore, in the national standard of lithium iron, metal needling test is a must do safety test.
That is to say, meet the requirements of China's lithium iron toy car charging polymer soft pack lithium battery, after acupuncture is not burning and explosion.
This test has done a lot, basically without objection, even I encountered part of the product after acupuncture can continue to use.
And the knife and cutting mentioned by the subject further expanded the destruction. I have also tried this test (Zuo) and tried (Si), and there was no combustion or explosion in the toy car charging polymer soft pack lithium battery.
In recent years some of the third party testing, the watchdog to solving plane toy car rechargeable polymer lithium battery to see if there is a soft packages and structure, standard is a unified structure of electrolyte is only a toy car charging soft package of lithium polymer battery, we also ceng several open toy car to interpret soft package of lithium polymer battery charging, neither is security problems.

Therefore, with the national standard of lithium iron toy car charging polymer soft pack lithium battery products, because of its chemical characteristics, and added flame retardant after the protection, knife cut is not should occur spontaneous combustion.
Other products are not guaranteed.
Of course, since I am mainly engaged in lithium iron here, I am not familiar with the standard of lithium manganese and other products, so I also hope that the peer can provide additional answers to correct them.
In theory, the metal foreign body puncture test should be the foundation of the foundation.