This is incoming telegram newsgroup starts a report the 25th piece formerly
The igneous affection of tesla got elimination, but the igneous situation of public opinion still is spreading indefinitely.
This incident obtains so great attention to spend, not was to cause how old belongings loss, also be not direct quiver industry of automobile of whole new energy resources, however the reason of incident happening extremely " odd " . Motor-car is in a report that awaits working status to did not experience the nature below the circumstance of high temperature, high pressure and collision, say plus can bloodcurdling fire situation spreads speed, be worth the outside naturally to pay close attention to particularly.
Although Masike emphasizes the spontaneous combustion probability of tesla again and again far under fuel model, in an attempt to lets media, user put smooth state of mind, but incident of on fire of all fuel car is existing almost relatively igneous sentiment of the rule spreads speed, can cause explosion truly after all, have gasoline tank only deposit of this one the sources of energy is unit, and of tesla deflagrate, had achieved it seems that fine think of extremely the rate that fear, hard to avoid allows number with 100 thousand plan tesla car advocate " everybody highs oneself " .
Is the fuse in where after all?
The rate that although this incident made progress already,deepness surveys, but up to now, as a result of electric car by the structural character of the degree of burn down and its itself, on fire germ has not reach firm conclusion, the cause of formation that this also allows the outside to have an accident to this is eristic in succession.
Of reason of numerous on the network cook meals in guessing, the personage inside most expert and course of study points to spearhead continuously charge quickly technology. They point out, using segment, if batteries enters the later period of lifecycle, can appear as a result of ageing abhorrent sex, and this kind of abhorrent sex, if pass to charge or pass discharge, can make partial internal resistance greatens batteries interior temperature is elevatory, with respect to the phenomenon that can produce spontaneous combustion.
Of course, this kind of view can show those who show field of motor-car of level pure report only apparently " common fault " , can explain all cause of formation of tesla model spontaneous combustion not completely.
Come round to look with respect to eye, the viewpoint of the outside has been mixed to the batteries of high energy density of tesla gradually course of development of long add boat tilts, the data backside that thinks these are exceedingly good, it is to be batteries safety hidden danger to bury laid a seed, those who caused a car to deflagrate is evil summary consequence.
Car head APP notices, this second incident of spontaneous combustion of Shanghai ground library, accident of extremely as similar as the gut before a month Guangzhou tesla on fire is having a the biggest common characteristic -- the Model S that experience thing car all is not newest money, style of the face before this pass car can discern apparently, also Cong Mou is planted experts were propped up to had been entered to batteries on degree " life later period " guess.
However, the time that tesla sells formally in China does not pass 5 years, if undertake measuring according to the standard of benzine car, it is normal to also passed a car merely 1/3 of life, how to meet ineffable arrived " life later period " ? Accordingly, look in most expert, the dynamical cell that this uses with tesla it seems that is existing to concern tremendously.
Does batteries on fire have facts one wishes to hide additionally?
Leaf through product data, the dynamical cell that tesla uses is in most begin to be distinguished greatly at other manufacturer. It is with Model P90D exemple, the cell of of 18650 3 yuan of lithium that its use, positive electrode material is NCA (nickel, cobalt and aluminium) , can say to be high energy density inherently namely and be born.
Fact of a foundation is, as nickel element content elevatory, the specific volume quantity of material of 3 yuan of anode lifts gradually, the energy density of electric core also can rise subsequently. Accordingly, in country's common NCM batteries, according to 3 person content is different, NCM material can be divided wait for NCM111, NCM523, NCM622, NCM811, among them what the number from the back represents is 3 person scale.
Asking to add boat course of development higher and higher demand falls, of batteries taller than energy need, rise ceaselessly plus the cobaltic price that serves as rare metal under, the NCM811 of tall nickel system will make the development way with important future, but tesla is in 5 years already however before will this " future develops way " turn into reality.
To NCA batteries, nickel cobaltic aluminium deserves commonly to compare in for 8:1.5:0.5, understandable be this is one kind compares NCM811 more extreme practice.
In addition, NCA batteries still can be in fill the yield with discharge process serious existence to enrage, this meeting causes cell bouffant be out of shape, loop and shelf life drop, batteries is put in safe hidden trouble, the columnar batteries case that uses compression normally so makes NCA battery, fall low yield tolerance in order to command battery bouffant be out of shape problem.
To domestic battery manufacturer, the technology of NCA does not have existence basically on electric car market to feel, its are main the reason is opposite namely production technology and actual strength of research and development are lacked of 100% hold, wait for large company like peaceful heart times, Biyadi, they are used rarely cylindrical batteries, because of,just is cylindrical the capacity of batteries is done big when, be like in-house occurrence short circuit, its pressure is met particularly tall, appear very easily deflagrate.
The technology is advanced it is true, "Intendment cuts condition " it is false
Very apparent, tesla deflagrates, dynamical cell escapes already hard implication. Guess according to the expert inside most course of study, batteries ageing, the branch brilliant thorn that lithium ion separate out forms is broken diaphragmatic, cause electrolyte to flow into the probability that brings about accident happening the biggest, this also as opposite as the technical level 5 years ago and workmanship " backward " having immediate concern.
The data points out, in the tesla model nowadays, had added in electric core interior set ultrathin diaphragmatic, although tighten up block to break chemical reaction,this kind of diaphragmatic meeting is in when temperature out of control, drop in temperature compulsively, cause explosion in order to prevent hot out of control.
But to 3-5 for the old model year ago, those who cannot change is for course of development of pursuit add boat as before what be cut down is diaphragmatic with energy density, and branch brilliant more and more current situations.
Go to Shanghai two cases this from Guangzhou spontaneous combustion incident, although we are loath but also must admit, the inchoate product of tesla had arrived it seems that " crises " , although have 8 years of ten kilometers protect deadline to be in character apparently the use benefit of consumer of the person that safeguard, but the control that the malpractice on chemical structure does not get policy however.
This, behoove gets tesla takes seriously adequately. However, the eye looks at safe hidden trouble day-to-day promotion, tesla still is in however with probability theory hero, still did not put the life safety of consumer in the first place.
Current and character, the dynamical battery that makes about the branch protects standard even to lie character level of sex of function attenuation, use advantage, and to security think to still place a hope however the consciousness at manufacturer, offerred the opportunity of deceive pass a barrier for the enterprise.
But as consumer for, safe level behoove occupies the first place, such ability comb-out does not wish to see " life is tragic " .
