Lantu FREE, which is said to be safer than fuel vehicles, caught fire and spontaneously combusted. A few days ago, a Lantu FRE spontaneously ignited in front of a charging pile in Xiangyang, Hubei. Lantu's "first burn" pushed the "amber and mica" battery safety wall built in the

Lantu FREE, which is said to be safer than fuel vehicles, caught fire and spontaneously combusted.

A few days ago, a Lantu FRE spontaneously ignited in front of a charging pile in Xiangyang, Hubei. Lantu 's "first burn" pushed the "amber and mica" battery safety wall built in the past to the ground.

Regarding the spontaneous combustion of this Lantu FREE, the official responded immediately: it took a serious attitude and set up a task force to investigate the cause of the fire.

From the perspective of speed, Lantu FREE has achieved "user-oriented" and issued a statement as soon as possible.

But the crux of the problem is that the new Lantu FREE, which has only been on the market for a few months, spontaneously ignited and caught fire. This is a market question on the "battery safety" it previously proposed.

First, the sales volume of Lantu FREE itself is not large, with an average monthly sales volume of about a thousand units.

Secondly, mica and amber batteries have made many technological breakthroughs. Lantu officials have spent a lot of time designing, producing, promoting, and creating safety myths. However, with the spontaneous combustion of Lantu FREE, it has been thrown into many doubts.

Thirdly, for users, who will bear the huge losses caused by spontaneous combustion of vehicles.

The prerequisite for insurance compensation is that you have purchased insurance, and the insurance compensation is based on the residual value to determine the damage. At the same time, the items in the car are not included in the compensation standards.

This means that if the loss is due to non-technical reasons, the car owner will bear the loss. If the loss is due to technical reasons, Lantu FREE will bear the intangible value loss, and the previous efforts will be in vain.

From January to May this year, spontaneous combustion of electric vehicles occurred frequently, with an average of 7 electric vehicles burned a day. Battery safety has once again been put on the agenda, and market attention continues to be high.

Judging from the ignition point of Lantu FREE’s spontaneous combustion, the location of the violent fire was at the bottom of the vehicle. Based on the location of spontaneous combustion, technical analysis and past experience, the problem pointed directly at the battery pack located at the bottom.

Thermal runaway problem of battery packs has always been a key problem leading to spontaneous combustion.

Therefore, Lantu FREE has proposed many solutions in battery technology, such as the "three-dimensional wall safety protection" technology, which uses the polymer insulation material inside the battery pack. Even if a single battery cell loses control, the problem will not spread. to the entire battery pack.

Thermal runaway inertia is difficult to control, but Lantu FREE's technology can only be regarded as a "passive protection technology". When the battery experiences thermal runaway, it can avoid spontaneous combustion problems to the greatest extent.

But if there is a problem with multiple battery cells, the firewall still cannot prevent the occurrence of thermal runaway problems, and heat conduction inertia still cannot prevent spontaneous combustion.

Generally speaking, thermal runaway occurs during charging (fast charging) and high-speed driving.

For example, if a vehicle drives at high speed for a long time, and the external environment temperature is high, it cannot be cooled efficiently. Battery packs that have been exposed to high temperatures for a long time will increase the risk of spontaneous combustion, so the most serious spontaneous combustion is often in summer.

The Lantu FREE spontaneous combustion is in a stagnant state, and there is a high probability that it involves charging problems. Of course, we need to wait for the investigation results.

The first Lantu FREE spontaneously ignites. Essentially, the user's loss is the most direct. If a new car spontaneously ignites, it will cause huge losses to property. Insurance costs, vehicle damage, and property inside the car are all irreparable losses.

Enterprises promote the advantages of products that do not emit smoke, do not fire, and do not explode, but spontaneous combustion occurs at such a fast speed. For Lantu FREE, it should focus on core technology, battery pack design, battery thermal management , and production Large area combing in terms of craftsmanship.

This spontaneous combustion is an extreme case, or it is a design hazard caused by high temperatures in summer. Either way, we should have our own understanding and ideas about the "battery safety" promoted by the company.