When Chengdu car exhibits the like a raging fire that have, the peaceful that is located in Tianjin to hold amounts to car forum to expose to the sun likewise gave topic of a lot of heat. Go up in the forum September 1, ou Yangming of professor of college of academician of the Chinese Academy of Sciences, Tsinghua is tall put forward the topic with very sensitive car of a current new energy resources -- spontaneous combustion.
Really, be in a few days short inside, EX5 of Li Fan 650EV, power horse produces spontaneous combustion in succession, certain car look forward to is in prep let alone had been habitual offender on spontaneous combustion problem. More than multiply with the car, also keep even commercial vehicle in spontaneous combustion phenomenon to happen, the spontaneous combustion accident inside public transportation channel is not a Yue Yang an exemple, manage in Yue Yang general hand over to the collective or the state pure dynamoelectric bus has this type only 12 appear early or late serious batteries breakdown, among them the spontaneous combustion phenomenon that half above produced different order and degree. This among them, still do not calculate do not have more very much by the accident of spontaneous combustion of pure electric car of exposure, small happen from time to tome to the product such as car of dynamoelectric autocycle, balance. What reason is this after all?
Uniform standard has not come on stage
Ou Yangming tall academician tells in the talk: "The near future is likely the video that everybody often can get electric car to catch fire on small letter, although we have some of enterprise to be done like video of fire fighting handlebar, but still flow now, the attention that this should cause our height " . Although situation of market of car of new energy resources auspicious, but the frequency hair that this does not mean safe problem can be ignored, if batteries installs all to cannot assure, add boat course of development became an useless figure.
Safe to batteries, perhaps say aspect of the yearly check of the car of new energy resources to pure report, insurance, the standard that we had not published one set system will undertake more refined management. Unlike fuel car, as a result of the cost component of the component cloth differs, car of new energy resources ought to publish the standard of one set system to undertake deciding, the use circumstance of batteries system, and undertake restraining to producing a business with relevant provision, assure product quality. To consumer, a place difficult of access that need has set differs to the character of car of new energy resources is planted reach keep the specified number, ensure consumer rights and interests.
Technical level still needs to rise
From batteries monomer angle for, through long attempt and exploration, showing level to suit the batteries sort of car of new energy resources most still is lithium battery. This is given priority to with battery of 3 yuan of lithium among them, recently very the 811 tall nickel of high energy density of fire also belong to 3 Yuan Li batteries. Although this is planted,batteries takes actor on energy density, but stability also is opposite poorer, to working environment, include temperature, humidity, shake wait to have higher demand.
In our country climate remarkable, and climate distributings below wide circumstance, the use environment of batteries is experienced likely tall the extreme circumstance such as wet, high fever, Gao Han, the dependability of the sealing to batteries group, circuit, medicinal powder hot system and heat beforehand systematic test is arduous. With at present water-cooling comes loose to popularize degree hotly, how using this to cover a system is technical place, how to make sure batteries keeps identical add ship as far as possible below all sorts of climate conditions.
In addition, below accident circumstance it is very important also to remedy measure, in perception for instance monomer of a certain batteries exists unusual when, start flow order in time, drop in temperature compulsively, even program of put out a fire is waited a moment. In the spontaneous combustion event that produces at present, the circumstance of the spontaneous combustion when car is dormant is in the majority, it is that is to say before combustion happening, protective program may be not done good " own job " . It is Yue Yang likewise in dynamoelectric bus incident, check in follow-up platoon in, most car is put in the circumstance of hazard of fire of existence of batteries of the monomer in batteries group. In addition, like coach amount of group of this kind of batteries exceeds much model, should mark matchs device of put out a fire to cause further loss in order to prevent.
Actually, the happening of these spontaneous combustion incident is not accidental, however each respect is integrated the result of the element, no matter manufacturer gives why to plant reason explanation, the phenomenon of spontaneous combustion exists objectively, such thing can be not accepted by consumer place. From another kind of angle for, while brand of our country new energy resources is swarmed into in great quantities, batteries industry also is worn in experience inferior healthy development mode, and the safe quality problem of batteries group is a kind of epiphenomenon below mode of this kind of development, if do not cause our vigilance, may cause the more serious consequence on the industry finally.
