Of new energy vehicles (lithium battery costs high

Source: 2020 - 04 - 05 12:58 hits: time of new energy vehicles (lithium battery high cost of the half a year since we seem to always keep a happy new energy car sales rise, since 2014 for predicting the development of new energy vehicles there will be a breakthrough, it has been proved that in March of this year's new energy automobile sales report, we not only saw the car sales, also saw about the lithium battery industry and the development of related products, the price is the most important, the outbreak of the downstream demand, let everyone see business opportunities, but they ignore the key, however, this is the new energy vehicles, High cost of battery technology committee, car sales increase, but the resulting lithium battery price, increase the price of the lithium battery materials also become a problem, and lithium battery technology has not been broken, endurance, capacity is too small has become an inevitable the main problems of new energy vehicles. Electric car era has come, how many people Shouting slogans, in the past year, many people said that this is 2014, not 1894, you can't live in that era, this is the most compelling, byd is opening sentences, or the vice President of byd electric counter in the circle of friends, all sorts of problems, it doesn't matter, the electric car era, byd also use results show that in order to prove the point, but it doesn't ignore should not ignore this problem, because it is the electric car, electric power system is the key, today, as the core of the electric power system, the lithium battery has become a pain spot of new energy vehicles. After seven years of exploration, byd knew pain points of electric vehicles. So, the future how to solve this pain? Lithium batteries, lithium ion battery explosion spewed molten liquid under certain conditions will explode, believe that we all know, don't overheat escape you understand? Lithium ion battery is vulnerable to the effects of thermal runaway, so back to the question what is the thermal runaway? Its meaning in the heat generated by the speed is greater than the loss occurs, say simple point causes the generation of heat is greater than the rate of loss, you can see this phenomenon in the experiments, for example, cobalt and lithium ion battery anode, temperature cannot exceed 150 degrees, 130 degrees Celsius, battery thermal instability, namely the thermal instability, once said that the battery to achieve this state, then generates heat out of control, and then release the burning gas, it is very dangerous, in the process of thermal runaway, melting the battery heat transfer to the nearby cells, which can lead to other cells into thermal instability. In many cases, due to thermal runaway, the battery will happen after the collapse of a chain reaction, which means that a battery pack is for this reason will be discarded in a few seconds of time, or a gas and thermal runaway could last for a few hours, is not very safe, so the battery safety measures, such as the space between each battery, in order to prevent the collapse of the affect nearby. Now, in order to improve the safety, the researchers hope that by observing the lithium ion battery to improve its design. Hope this observation and experiment can help them succeed, this will also help the development of lithium ion batteries.