Technical Knowledge

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

According to foreign media reports, researchers from the Karlsruhe Institute of Technology (KIT) in Germany and cooperative institutions have studied the structural changes during the synthesis of cathode materials for the development of future high-energy lithium batteries, and obtained information on the degradation mechanism of cathode materials. The important discovery of this may help to develop larger capacity batteries to increase the cruising range of electric vehicles. So far, electric vehicles have not

With the rapid development of the electric vehicle industry, lithium batteries are widely used in the field of power lithium batteries due to their high energy density, no memory effect and high safety. Due to the particularity of electric vehicles, higher requirements are also placed on the safety of power lithium batteries. For example, in the event of a safety accident such as a collision with an electric vehicle, the power lithium battery must not catch fire or explode to ensure the safety of drivers and passen

BYD's blade battery is the long cell method (importantly refers to the square aluminum shell), which is a method to further improve the battery pack by increasing the length of the cell (the maximum length is equal to the width of the battery pack) and making the cell flat and elongated. Technology for integrated efficiency. It is not a cell of a specific size, but a series of cells of different sizes that can be formed based on different needs. The specific shapes are as follows: The positive and negative e

What is the future development prospect of lithium titanate battery technology? What is the future prospect of lithium titanate battery technology? Lithium titanate battery technology is very advanced in the field of energy storage. It has the advantages of fast charging, long life, low temperature resistance, etc. It is especially suitable for fixed-line or fixed-line buses, Terminal trailers, etc. At present, lithium titanate batteries are not the mainstream battery technology. At present, domestic automakers

Design of Li-ion Battery Online Charge and Discharge Management Circuit 1Characteristics of lithium-ion batteries In recent years, the rapid development of portable electronics has led to an upgrade in battery technology. During this period, lithium-ion batteries continued to emerge and became the mainstream of the market due to their high energy density, high internal resistance, high battery voltage, high cycle times, and low self-discharge rate. According to statistics, in the field of notebook computers a

Recently, domestic power lithium battery companies have successively announced their 2021 annual financial reports. Although the fundamentals of the overall financial reports are gratifying, many companies have expressed that their concerns about future development remain unabated. Analyzing the financial reports, the situation of leading companies such as CATL, Yiwei Lithium Energy, Guoxuan Hi-Tech, and Funeng Technology is mixed. In 2021, the price of upstream raw materials will continue to soar, which will put s