Power lithium-ion battery, but the theory of energy density should stop

Recently, Wang Binggang, leader of the National New Energy Vehicle Innovation Project Expert Group, revealed that version 2.0 of the 'Energy-saving and New Energy Vehicle Technology Roadmap' has passed expert review and is expected to be announced soon. Unlike the first version of the roadmap, the new version of the roadmap no longer provides a single high-energy density guide for power lithium batteries, but instead adheres to the principle of safety first, taking into account performance, cost, and lifespan indicators. As an important programmatic and command document of my country's new energy automobile industry, timely 'correction' of the new version of the roadmap is very critical. In 2017, after the 'fraud subsidy' incident occurred, the state adjusted the new energy vehicle subsidy policy in a timely manner, taking battery energy density as one of the important reference indicators, aiming to promote the technological progress of new energy vehicles and promote the industry to become faster and faster. Develop well. On March 1st of the same year, four ministries and commissions including the Ministry of Industry and Information Technology issued the 'Action Measures for Promoting the Development of the Automotive Power Lithium Battery IndustryUnder the guidance of such a clear-cut policy, new energy vehicle companies and battery companies have begun to spare no effort to increase the energy density of vehicle power lithium batteries. In the following years, the increase in the energy density of power lithium batteries has almost become the “top priority” of the new energy automobile industry, but it has also brought unexpected negative effects. On the one hand, due to the adjustment and change of subsidy policies every year, while the battery energy density continues to increase, car companies lack sufficient time to carry out product verification work, resulting in frequent safety accidents such as spontaneous combustion of new energy vehicles. The frequent occurrence of safety accidents has also caused consumers to have doubts about new energy vehicles, which has seriously hindered my country's new energy vehicles from turning from a 'policy market' to a 'market market.' In particular, it is worth mentioning that the continuous increase in driving range brought about by the continuous increase in energy density has not really eliminated the 'mileage anxiety' of consumers. In fact, blindly increasing the driving range is not an immediate and effective means. The rational layout of the charging infrastructure, the improvement of the utilization rate of the charging pile, and the reduction of the charging time can better deal with the consumer's 'mileage anxiety' problem. On the other hand, the industry’s excessive pursuit of energy density has made companies that value battery and product safety a “loss” in the competition. There is one of the first batch of independent brand companies in China to conduct research and development and sales of new energy vehicles. It has always regarded battery safety as the top priority. Previously, it has formulated relatively strict and stable phases in product research and development, especially the improvement of battery energy density. aims. However, such 'persistence' has caused the company's product battery technical indicators to be far behind the changes in subsidies, leaving the company at a disadvantage in obtaining subsidies and greatly reducing its market competitiveness. Fortunately, the industry has noticed and started to pay attention to this issue in the past two years. Experts in the industry have frequently called for not pursuing excessive battery energy density. When evaluating the technical level of power lithium batteries, safety, life and economy should also be considered comprehensively. Other important factors such as sex. But appeals alone cannot make the company change. Only by regulating higher-level policies can it truly affect the strategic decisions of auto companies. Based on this, the new version of the roadmap emphasizes the principle of 'adhering to safety first' and improves battery safety to the most important position, which will point out the direction and clear path for the steady development of the new energy vehicle industry. Of course, battery energy density is not insignificant, just blindly pursuing this indicator and ignoring other factors will affect the sustainable development of the industry. So for the company concerned, how can it ensure that the route does not deviate? The method is actually very simple, whether it is a technical route or a strategic direction, as long as you really pay attention to the actual needs of consumers, think about what consumers think, and supply products that the market wants, you can ensure that the company is on the right path and develops steadily. . The author sincerely hopes that after this round of adjustments, my country's new energy vehicles can truly meet the needs of consumers and the market, get rid of policy dependence as soon as possible, and drive fast on the road of healthy development driven by the market. Disclaimer: Some pictures and content of articles published on this site are from the Internet. If there is any infringement, please contact to delete.