Industry Knowledge

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

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

The main function of the lithium battery stacking machine is to cut the positive and negative electrodes into individual pieces, the diaphragm is stacked in a zigzag shape, and the positive and negative electrodes are stacked in turn, separated by the diaphragm. Or, the positive electrode sheet, the separator, and the negative electrode sheet are sequentially stacked to form a battery cell, and the battery cell is positioned and assembled on the second layer of diaphragm, and the second layer of diaphragm is wound

Lithium battery die-cutting machine brands in various countries have different starting times. Although Japan and South Korea’s die-cutting machine related equipment have been involved earlier, after several years of domestic manufacturers’ efforts to catch up, they have been very close in efficiency. In terms of stability, domestic brands and domestic brands Japanese and Korean brands are almost the same.(Lithium - Ion Battery Equipment)       The domestic lithium battery indu

The reasons for the deformation of the lithium battery separator after slitting are as follows:       (1) The speed and tension of the diaphragm during slitting are two key factors that affect the effect of the diaphragm after slitting. You can try to change the existing process and do a small-scale experiment.(High Speed Slitting Machine)       (2) Control of moisture in the diaphragm. The poor skirt after slitting may be caused by the inhalation of moisture in t

On September 4, local time, the Japan Automobile Manufacturers Association announced at its monthly regular meeting with the Ministry of Economy, Trade and Industry of Japan that Toyota, Nissan and other Japanese automakers will jointly launch a project in October to recycle lithium from retired electric vehicles. Ion battery. As electric vehicles become more and more popular, the recycling and reuse of retired batteries has also become a serious social problem. Japanese automakers, which have always been keen on &

Working principle of lithium battery die-cutting machine Automatic die-cutting machine operation introductions: 1.The machine is mainly used for cathode and anode oxidation of lithium cell and Z-shape winding   installation of protective film 2.Product model: L×W×Hmm：same or lower than（40—200）×（40—150）×（30—55）mm 3.Productivity: 1pc/2.5s 4.Life span: 1 year quality insurance, and lifetime maintenance (High Speed Slitting Machine) 5.External size: 1700×1740