Technical Knowledge

According to foreign media reports, Christina Lampe Onnerud, CEO of U.S. battery and energy storage developer CadenzaInnovation, recently announced that the "Supercell" lithium battery developed and produced by the company can prevent the spread of fire in the event of thermal runaway, which has been recognized by the industry certification body UL. , and its battery products have obtained the UL9540A certification of the combustion test.(Lithium - Ion Battery Equipment) Obtaining this certification sh

Financial Associated Press (Shanghai, editor Huang Junzhi) news, affected by the new crown epidemic, the much-anticipated TSLA "Battery Day" (Battery Day) has been forced to postpone. A few days ago, TSLA finally announced that the 2020 General Meeting of Shareholders and the "Battery Day" event will be held on September 22. Both events will be held at the TSLA California facility and will be live streamed online.(Lithium - Ion Battery Equipment) What kind of surprises will this TSLA bring? I

The traditional view is that the thermal runaway of lithium batteries is caused by the internal short circuit caused by the shrinkage or even melting of the polyolefin separator caused by the heating inside the battery [1]. The latest research shows that the mechanism of thermal runaway of the battery is different for different battery systems and abuse conditions. Factors such as cross-reaction between positive and negative electrodes in high-specific energy batteries, lithium precipitation on the negative side ca

CATL has become the "overlord" of the global power lithium battery in ten years, and has gradually formed a positive cycle business model with leading technology, low battery cost, and large production and sales scale. Based on this, CATL is a company that is willing to engage in technology. This is one of the reasons why CATL has created an industry myth in just ten years; it is also one of the reasons why CATL can buck the trend and expand its market share despite the first negative increase in sales

CATL, which has lost the global market share of power lithium batteries, wants to "recover lost ground" by preempting the commercialization of new battery technologies. On June 10, CATL announced the launch of a new long-life battery, which will use self-healing long-life technology. "At present, it is possible to start accepting orders from OEMs." The relevant person in charge of CATL told a reporter from Beijing Business Daily. At present, as an important supporting power lithium battery fi

The problem of the cliff-like decline in the cruising range of electric vehicles in winter has not only "dissuaded" a large number of potential customers in recent years, but even the owners who bought the car mentioned it, and most of them felt that it was not a pleasant experience. "The electrical appliances such as air conditioning, heating and entertainment systems in electric vehicles really affect the cruising range. Especially in winter, the power consumption of air conditioning and heating

With BYD Han, Xpeng P7 and other long-range pure electric new cars delivered this month, several star products have been added to the family of electric long-range vehicles over 600km. According to the incomplete statistics of my country's battery network, at present, domestic pure electric vehicles with a battery life of more than 600km mainly include Hechuang HYCAN007 of GAC NIO, AionLX/AionV of GAC New Energy, Xiaopeng P7, BYD Han, etc. models. It is expected that in the next few months, there will also b

Financial Associated Press (Beijing, reporter Xu Hao), the upcoming June, echoing the frequent fire accidents of new energy vehicles, is the industry's attention to solid-state batteries with higher safety and energy density. Under this industry trend, traditional vehicle manufacturing companies including Volkswagen have further strengthened their layout in the field of solid-state batteries. "If all solid-state batteries are used, the cruising range of the company's EV model e-Golf can be increased

【Solid-state battery】Important progress has been made in the research on polymer solid-state sodium batteries of the Institute of Physics, Chinese Academy of Sciences The Clean Energy Experiment of Institute of Physics, Chinese Academy of Sciences/Beijing National Research Center for Condensed Matter Physics proposes a method to remove residual free solvent molecules in SPE in situ by chemical reaction. The key to this method lies in the selection of suitable solvent, salt and additive combination through contro