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First, the human auto industry is facing the most profound change in more than a hundred years. Today, major countries and major auto companies are so concerned about electric vehicles, not because traditional energy sources have been exhausted, but because electric vehicles have a strong trend and can better connect with future social progress and social development. At present, the industry focuses on batteries, motors, electronic controls, etc., and the efforts to ensure good driving performance are just a prelu

Affected by the new crown epidemic, the new energy vehicle industry chain is facing a huge test. Although the domestic epidemic prevention and control has achieved remarkable results, and the power battery industry has gradually resumed production, the overseas epidemic is spreading rapidly, and companies such as Panasonic Battery, LG Chem, Samsung SDI and other companies have announced the suspension of production. In addition, the outbreak of overseas epidemics has slowed down the logistics of the entire lithium

The power battery is a key component of electric vehicles, and it is also an important factor affecting the performance and user experience of electric vehicles. At the same time, the cost structure of electric vehicles is different from that of traditional vehicles, and power batteries account for nearly half of the total vehicle cost, which shows the significance of power batteries in the cost control of electric vehicles. At present, more than 90% of the batteries used in global electric vehicles are produced

Production process principle of lithium ion battery separator The production process of lithium iron phosphate battery separator is mainly divided into dry process and wet process. The important steps and principles of dry and wet processes are as follows: 1. In the dry method, the polyolefin resin is first melted, extruded and blown to form a crystalline polymer film, and then subjected to crystallization heat treatment and annealing operations to obtain a highly oriented film structure, and then stretched a

Lithium-ion battery separator dry single drawing process Feeding: raw materials such as PE or PP and additives are pretreated according to the formula, and then transported to the extrusion system. Casting: The pretreated raw materials are melted and plasticized in the extrusion system, and then extruded from the die, and the melt is casted to form a base film with a specific crystal structure. Heat treatment: After heat treatment of the base film, a hard elastic film is obtained.(Lithium - Ion Battery Equ

When the lithium-ion battery pack is produced and stored for a long time, due to the different static power consumption of each circuit of the protection board and the different self-discharge rate of each cell, the voltage of each string of batteries in the entire battery group is inconsistent. Balance has the function of balancing the voltage of the lithium-ion battery pack, so as to achieve the effect of full charge and full discharge of the battery pack capacity, so that the battery pack can exert the maximum e

Because of the slow construction speed of charging piles and the weak endurance of electric vehicles, new energy vehicles were once in a low development due to "overcapacity". Recently, as the State Council and the Ministry of Industry and Information Technology have successively promulgated preferential policies for supporting new energy vehicles, new energy vehicles have rekindled the fire of hope.      Just in the past October 22, the National Energy Conservation and New Energy Automobi

The basic chemical principle of lithium-air battery is very simple. This kind of battery realizes discharge by combining lithium and oxygen to form lithium peroxide, and then completes charging by reversing this process by applying current. Recently, a research paper published in the journal Science showed that Clare Grey, a professor of chemistry at the University of Cambridge, and her team have overcome the technical difficulties in the development of lithium-air batteries, and the Cambridge team has overcome Som

The meaning of coating.Lithium - Ion Battery Equipment Slurry coating is the next process after the preparation of the slurry. The important purpose of this process is to uniformly coat the slurry with good stability, good viscosity and good fluidity on the positive and negative electrode current collectors. The pole piece coating is of great significance to the lithium-ion battery pack, which is mainly reflected in the following points: 1. It is of great significance to the capacity of the finished battery