Enjoying the recreational time of 51 small long holidays when everybody, wei Laiguan just announced findings of Xi'an ES8 spontaneous combustion. Through be informed after probe, spontaneous combustion of this Xi'an ES8, department car batholith bumps be caused by of batteries short circuit.
" dynamoelectric big Ga " come through colourful in-house personage learns, branch and colourful survey gain jointly related state of primary reason of accident of this spontaneous combustion. From the point of findings, this colourful comes ES8 is sending the bumper before crackle of glass of the windscreen before was being repaired is mixed declares to blow loiter filling lacquer only when repairing, wei Laiwei repairs personnel to did not go up lift litre of machine to check its batholith. As to the mainest on fire reason, colourful will express " this car is sending the batholith before repairing to once had been sufferred bump badly, bring about dynamical cell to wrap opposite hind case and dead plate large area to be out of shape. Short circuit is formed after batteries wraps internal composition to pass period of time below the condition that is squashed, cause igneous feeling finally " , did not detect as a result of maintenance technician chassis, reason fails to discover this circumstance in time.
On May 2, colourful will release " the action program that ensures dynamical cell safety further " .
1, aggrandizement lash-up answers a mechanism: Car advocate if encounter bigger chassis knock against, or once had produced chassis clash, the Fellow that can contact correspondence (exclusive and advisory) or dial colourful to serve a hot line, wei Laihui expedites personnel to undertake detecting to the spot.
2, the sole job item that adds postmortem batteries to wrap motherboard: Want to car maintains into the factory or be maintained only, uniform the sole job item that adds to remove postmortem batteries in order to move top of litre of machine general car wrap motherboard.
3, strengthen change report and the batteries when one key adds report to serve to include motherboard examination: Farther aggrandizement is changed report adds report to serve medium batteries to include examination technological process with one key, increase necessary technology to assist a method.
4, change freely the batteries package that has safe hidden trouble: If batteries bag once had been bumped, the discovery after the examination has safe hidden trouble truly, wei Laihui is a car freely advocate change the batteries bag of same norms, include to discard as useless all right to original batteries processing.
5, begin fire control drilling, aggrandizement safety consciousness: Colourful will have the service group of normal sex and partner fire meet an urgent need beforehand case drilling, consciousness of safety of aggrandizement employee fire control and lash-up deal with ability. In the meantime, colourful will also can cooperate with each district fire control, rescuing unit does good lash-up to deal with the construction of ability.
What circumstance issues easy spontaneous combustion?
It is the electric car of main energy source with dynamical cell, its security and traditional car photograph are more a lot of than existing characteristic. And incident of spontaneous combustion of this Xi'an ES8, the batteries of the look forward to of car of new energy resources that represents to be with colourful undoubtedly is prevented bumped into safety performance to pose higher demand and challenge.
Project of Tsinghua university car fastens pair of researcher enemy Bin to think the reason of electric car on fire, main but end is 3 big fields: It is by sudden incident or abusive reason, specific setting has lithium ion batteries to charge too, acuteness good thing piercing, extruding and high temperature environment, these elements cause lithium ion cell easily negative pole, organic electrolyte and diaphragmatic etc produce series physics and chemical reaction, if a large number of quantity of heat that these reaction produce cannot come loose in time piece, inevitable meeting brings about the generation of hot out of control, produce the combustion of lithium ion batteries, explosion finally.
The 2 oneself reasons that are lithium ion batteries, above all itself of lithium ion batteries because energy density is high, cause safe accident very easily because of heating up out of control; Next of lithium ion batteries, the characteristic of negative pole material decided its charge too namely, be put too and a lot of reaction can produce when high temperature is used, if the quantity of heat that these reaction emit is accumulated come loose not to go out to also can cause hot out of control; Again, the electrolyte of lithium ion batteries is carbonic acid ester kind, flash point is low, when voltage is tall (4.6 bend over are controlled) be oxidized easily, be like occurrence electrolyte leak, cause batteries easily to catch fire, explode even.
3 it is to be destroyed artificially, namely electric car detonates content, ignition content and other to destroy a method to cause a loss to place by the person, also can cause an accident of dynamical cell occurrence safety.
And charge the happening in the process spontaneous combustion is most common, yang Minggao of Europe of academician of the Chinese Academy of Sciences ever expressed, look from data level, batteries hot out of control is the main reason that brings about car of new energy resources to produce grave accident. According to the data that he collects, in the safety of automobile of new energy resources of about 29% accident happening is charging link; If not plan the accident that cannot prove a cause, charge spontaneous combustion is source of the biggest accident.
In addition, europe Yang Minggao still analysed the cause that causes vehicle of car of new energy resources to heat up out of control further, roughly but end is tripartite face: Car look forward to does not respect a product to develop standard of the rule, inobservant technology or other and factitious element to bring about.
Learn this 3 action to reduce spontaneous combustion probability considerably
To consumer, be not to the batteries safety of electric car completely helpless. Actually, if everybody is noticing to hold the good convention that use a car at ordinary times, also can eliminate the hidden danger of on fire in " budding " in.
Above all, open the friends of electric car, oneself must have been protected to love the batholith of the car in daily life, do not get as far as possible knock against. At present the batteries group of electric car is decorated mostly go up in chassis, although already had the protection of metallic housing, but also cannot treat sth lightly. Model S ever overwhelmed because of grinding the fragment on the ground, accident ground plays puncture batteries group causes inflammation.
This colourful comes the reason of ES8 on fire results from likewise chassis is damaged, after the netizen releases in accident reason investigation, leave a message say: "Electric car says safe batteries wraps a metal to protect housing on enterprise conduct propaganda, return existence risk in fact, have increase improvement space, whether are the batholith that the user judges him very hard and batteries damaged, should consider to add set detect automatically and warning decice. " so young associate people in the process that using electric car, if chassis gets knock against, must check in time.
Next, we are driving when electric car, should prevent the situation of occurrence ford as far as possible, especially wet, more want discretion. At the beginning of manufacturer is being designed, place in faster first step with respect to the waterproof properties of will electric car, the ford that also can have made electric car designedly checks and charge the waterproof processing of equipment, won't have too big problem usually.
Finally, we are in the process that uses electric car at ordinary times, notice to charge as far as possible safe. Below a few circumstance, car advocate former outfit of meeting use blame fills electrical wiring to undertake charging to electric car, not only the requirement of voltage and manufacturer of voltaic short of, also cause an effect to battery life at the same time, the most crucial is to bring about electric car spontaneous combustion easily, so car advocate the charger that must use manufacturer to offer, undertake charging according to the standard.
When charging, we also should avoid to charge for long in the garage, especially summer, if charge,time grows too, bring about batteries temperature exorbitant, or it is car the upper temperature that deposit is exorbitant, cause safe hidden trouble likely, occurrence batteries overheat causes the condition of short circuit on fire. In addition, if go out outer, we choose to choose operation as far as possible what safeguard on time is good, communal fill a power station, of operation of regular perhaps firm charge picket, decrease charge the accident in the process.
Come to colourful findings of accident of this spontaneous combustion, how do you look, the welcome is in " dynamoelectric big Ga " lower part leaves a message, speak your view.
