The pain point of new energy vehicles is the high cost of lithium batteries

The pain point of new energy vehicles. The cost of lithium batteries is high. Over the past six months, we seem to have maintained a happy new energy vehicle sales increase. Since 2014, we have continued to predict that the development of new energy vehicles will have breakthroughs. It turns out that in March of this year In the new energy vehicle sales report, we not only saw car sales, but also the development of the lithium battery industry and related products. Price is the most important. The outbreak of downstream demand allows everyone to see business opportunities, but the key that they ignore, However, this is a new energy vehicle (high battery cost technical committee, new car sales, but the price of lithium batteries that follow, the price of new lithium battery materials has also become a problem, and lithium battery technology has not yet broken, endurance The problem, too small capacity has become an important issue for new energy vehicles that cannot be prevented. The era of electric vehicles has come, how many people chanted slogans, in the past year, many people said that this is 2014, not 1894, you can’t live there. In the era, this is BYD's most eye-catching sentence, whether it is open or not, or when it is the electric rebuttal of the vice president of BYD. It does not matter. The era of electric vehicles is coming, and BYD also uses the results to show that, for Prove this, but it will not ignore this problem. Since it is an electric vehicle, the power system is the key. Today, as the core of the power system, lithium batteries have become the pain point of new energy vehicles. After 7 years of exploration, BYD is well aware of the pain points of electric vehicles. So, how to solve this pain in the future? Lithium batteries explode, spraying molten liquid lithium batteries will explode under certain conditions, I believe everyone knows, but do you understand the heat escape? Lithium batteries are very It is easy to be affected by thermal runaway, so back to the question what is thermal runaway? Its meaning is that when the rate of generation at high temperature is greater than the loss, it can be seen that the simple point of heat generation will be greater than the loss of speed. Phenomenon in experiments, for example, with the anode of a cobalt-lithium battery, the temperature cannot exceed 150 degrees at 130 degrees Celsius, the thermal instability of the battery, that is, thermal instability, it has been said that the battery reaches this state, and then thermal runaway occurs , And then release the burning gas, which is very dangerous. In the process of thermal runaway, the heat of the molten battery is transferred to nearby batteries, which will also cause other batteries to enter a thermally unstable state. In many cases, due to heat Out of control, the battery will have a chain reaction after the crash, which means that a battery pack will be discarded in a few seconds for this reason, or the gas and heat out of control may last for several hours, which is very unsafe Therefore, safety measures in battery packs, such as the space between each battery, are in order to prevent the impact of cell collapse. Now, in order to improve its safety, researchers hope to improve its design by observing lithium batteries. Hope this observation And experiments can help them succeed, which will also help the development of lithium batteries. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete the previous article: About lithium battery Prospects for Pool Recycling