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After the laser cutting machine cuts the material, the finished product will occasionally show the phenomenon of crystal dots. There are two main reasons. One is that the raw material itself has crystal points, and the other is that dust is generated during the cutting process, and the dust is mixed into the subsequent processes. To solve these two problems, first start with the raw materials, pay attention to inspections when purchasing raw materials, and second, avoid the generation of crystal points when laser

The manufacturing process steps of lithium battery pole pieces can be subdivided into five processes: slurry preparation, slurry coating, pole piece rolling, pole piece cutting, and pole piece drying. It is understood that the battery assembly process is roughly divided into winding, casing, welding and other processes according to different battery specifications. The final liquid injection stage includes various processes such as liquid injection, exhaust, sealing, pre-filling, formation, and aging.(Cutting and s

The cell of a lithium battery is made up of many pole pieces stacked or wound up. Before doing this set of procedures, we must first use a slitting machine to cut the pole pieces into the size and shape we need. Nowadays, the cutting method of die-cutting machine is usually adopted on the market. This equipment has high efficiency and low cost. The price of a die-cutting machine with high-quality pole piece products is about one million yuan.(High Speed Slitting Machine) J390-590D-BY flexible die cutting machine

The stacker is one of the key equipment for the production of square lithium batteries. Generally consists of ten institutions: unwinding mechanism, positive electrode material box, negative electrode material box, positive electrode secondary positioning mechanism, negative electrode secondary positioning mechanism, positive electrode feeding mechanism, negative electrode feeding mechanism, stacking table, pasting mechanism, Blanking mechanism。 Material agency.(Cutting and stacking Integrated machine)   

The gap between the upper and lower blades, the gap between the pressing plate and the punch, the pressure of the pressing plate and the flatness of the pressing plate surface are the major factors that affect the powder drop. To ensure the gap between the various parts of the mold, firstly, the mold material must be selected, and secondly, the machining accuracy must be ensured.        a: The gap between the upper and lower blades: When the gap is small, the punching force on the pol

When it comes to battery balancing, it has basically touched the core area of ​​BMS. First of all, it is necessary to understand a few issues. 1. There is a limit to battery balancing, and the effect should be evaluated with certain parameters. 2. Battery balance In HEV and EV, the requirements are very different. 3. The effect of battery balancing must be a game and compromise with cost and additional energy consumption. Reason for balance: Both EVs and HEVs have to withstand large instantaneous curre

The automatic battery charger circuit design in this article employs what is arguably the simplest window comparator ever made with a single transistor (see figure). It starts charging when the voltage drops below a predetermined value and stops charging when the voltage exceeds a predetermined value. With an accurate variable voltage power supply, the voltage can be set up or down. The normally connected relay leads are not connected to the 15Vdc power supply, which prevents voltage from passing to the battery

Today, Texas Instruments (TI), leveraging its strong R&D strength in battery management, announced a unique "Gas Gauge" technology that can calculate lithium-ion battery packs with up to 99% accuracy over the entire battery life cycle of remaining power. The new ImpedanceTrack™ technology enables designers and users of portable medical equipment, industrial equipment and notebooks to extend battery life and always know the available energy remaining in the battery. Taking battery fuel monitor

1. Introduction to quasi-single crystal technology 1.1 Traditional monocrystalline and polycrystalline silicon technology We understand that single crystal silicon is generally prepared by the Czochralski method (CZ method), seeding with a single crystal seed crystal of a specific crystal orientation, and then rotating and pulling to obtain a single crystal silicon rod of the target crystal orientation. The obtained product only contains A die with low defects and high conversion efficiency. At present, the con