All Articles

Due to the decline of subsidies, under the high pressure of cost reduction, the demand for separators of ternary products used by some power lithium battery companies in the segmented product category will shift from wet to dry. A person in the diaphragm industry told Gaogong Lithium Battery that at the same time, some power lithium battery companies that use imported dry-process diaphragms are also turning to domestic production.(High Speed Slitting Machine) Previously, under the directivity of high energy dens

1. Thickness There are two important on-line control technologies for lithium-ion battery separator thickness, one is MD (longitudinal) control and CD (transverse) control; the other is the on-line machine vision inspection technology of the separator. The so-called MD control and CD control refers to the closed-loop control of the thickness in the MD direction by controlling the speed of the feeding screw or the pulling speed; and the data measurement through the scanning frame, and finally the data closed-loop

The lithium battery equipment corresponding to the front-end process of lithium battery production mainly includes vacuum mixers, coating machines, roller presses, etc.; the middle-stage processes mainly include die-cutting machines, winding machines, lamination machines, liquid injection machines, etc.; The latter-stage process includes chemical forming machines , Volumetric testing equipment, process warehousing and logistics automation, etc. In addition, the production of battery packs requires Pack automation e

During the cutting process of lithium battery pole pieces, the quality of the cut edges of the pole pieces has an important impact on battery performance and quality, including:       (1) Burrs and impurities will cause a short circuit in the battery, cause self-discharge or even thermal runaway;       (2) The dimensional accuracy is poor, and it is impossible to ensure that the negative electrode completely wraps the positive electrode, or the separator completel

Prospects for multi-level utilization and recycling of power lithium batteries:     According to statistics, the cumulative sales of new energy vehicles in China in 2017 reached 1.8 million, and the market sales in 2018 are expected to be around 1 million. The service life of power batteries is generally 5 to 8 years. Starting in 2019, my country's power batteries will enter a large-scale obsolescence period. By 2020, the annual scrap volume of China's automotive power batteries is expe

The general process of the production process of ion battery pole piece is: active material, binder and conductive agent are mixed to prepare slurry, and then coated on both sides of copper or aluminum current collector, after drying, the solvent is removed to form dry pole piece and pole piece particles. The coating is compacted and densified, and then cut or slit. The equipment used to produce lithium batteries is a professional die-cutting machine for lithium battery pole pieces. Mainly used for forming positive

There are three main reasons for the generation of pole piece burr dust: 1. The punching method; 2. The structure of the punching die; 3. The material and processing accuracy of the punching die.       Pole piece burr refers to the stretching and bending of the section base material produced by the punching of the pole piece. The general standard for pole piece burrs in the industry is Vh≤15μm (calculated based on the collector surface); Vk≤15μm (calculated based on the edge of

Experts believe that these seven points are not only the buyers should pay attention to, but also the problems that the die-cutting machine must solve when manufacturing equipment. How to choose a die-cutting machine with high speed and high precision? Recently, Chai Sanzhong and Cheng Ganghu of Xi'an University of Technology and Zhang Xuansheng of Beijing Institute of Graphic Communication have provided answers to the industry. That is to say "seven looks".(High Speed Slitting Machine) Take a loo

In the die-cutting process, it is more common for the blade to be unfavorable or the product has burrs when the die is in use. In addition, die-cutting engineers are a little confused about the choice of die-cutting engineers, because most of the die-cutting suppliers say to die-cutting engineers, "What kind of Japanese DC53 steel do they choose for their die-cutting molds? SK-5 made an etching mold, and said how good his equipment is, etc. "This makes it difficult for the die-cutting engineers to judge