Industry Knowledge

Recently, the letter presented by the Beijing Municipal Party Committee was published in the new energy passenger vehicle production company and product record management regulations (revised in 2015), compared with the 2014 version and the 2015 version of the rules to adjust the vehicle and power lithium battery warranty, including power lithium battery, etc. The supply of key components is guaranteed for not less than 5 years or 100,000 kilometers, and the supply is guaranteed for not less than 8 years or 120,000

Polyolefins are the basic materials for lithium-ion battery separators. Polyolefins have excellent mechanical properties, chemical stability and low cost. Diaphragm matrix materials mainly include polypropylene, polyethylene materials and additives. The matrix material in the diaphragm is directly related to the mechanical properties of the diaphragm and the degree of wetting of the electrolyte. Although polyvinylidene fluoride (PVDF), cellulose composite membrane and other materials have been used to prepare lithi

The longer a lithium-ion battery is discharged, the more it wears out, said Tom Hartley, a professor of electrical engineering at the University of Iowa. The more you charge the battery, the more likely it will wear out. Lithium-ion batteries work best during charging because they have the longest battery life. The longer a lithium-ion battery is discharged, the more it wears out, said Tom Hartley, a professor of electrical engineering at the University of Iowa. The more you charge the battery, the more likely i

3D printing technology can produce lithium-ion batteries of any structure 3D-printed lithium-ion batteries can be made into any structure, the team wrote in the study. According to foreign media reports, a research team from the University of Texas and Duke University used 3D printing technology to create an LED bracelet with a built-in lithium-ion battery and self-dimming liquid crystal sunglasses.(Lithium - Ion Battery Equipment) 3D-printed lithium-ion batteries can be fabricated into any structure, whic

The power group uses lithium-ion batteries, and the charged lithium-ion batteries need voltage, discharge voltage, over-current, short-circuit protection, in order to achieve the problem of the entire battery equalization charging and charging process, and a section introduces any number of lithium-ion battery protection chips The array of stages includes battery protection features designed for balanced charging of Li-ion battery protection boards. Simulation results and industrial applications show that the prote

Introduction of Li-ion Battery Assembly Technology Tutorial What are the technical steps in Li-ion battery production? Today, we will discuss some of the steps related to Li-ion battery assembly technology. low battery 1. Lithium-ion battery material processing Some materials used in secondary batteries, such as lithium ions, require special handling. Electrodes should be processed at high speed without damaging the delicate active material. In the electrolyte, special care must be taken to prevent the

The three important links in the production of ternary materials for lithium-ion batteries are mixing abrasives, high-temperature sintering, and crushing and decomposition. The control of each link and the performance of equipment will have a direct or indirect impact on the final product. Among them, grading, screening and packaging are the last links of ternary materials. Let's understand these links. ●Grading The particle size distribution of ternary lithium-ion battery materials will affect the specif

The important process parameters of hot-pressing shaping of cells are pressurization pressure, pressurization time and template temperature. Under suitable process parameters, there is almost no air inside the thick cell, the diaphragm and the pole piece are tightly bonded together, and the loose cell can become a hard block. In the process determination test, the test items include the gas permeability and thickness change of the diaphragm; whether the thickness of the cell meets the requirements for entering the

The principle of lithium-ion battery protection circuit The reason why the lithium-ion battery (rechargeable) needs to be protected is determined by its own characteristics. Since the material of the lithium-ion battery itself determines that it cannot be overcharged, overdischarged, overcurrent, short-circuited and ultra-high temperature charge and discharge, the lithium-ion battery components will always appear with a delicate protection board and a current fuse. The protection function of lithium-ion batterie