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1. Principle of pole piece disk cutting Referring to the metal plate disc slitting process, we first analyze the basic principles of pole piece disc slitting. First, when the plate comes into contact with the Ab point of the upper and lower blades, the plate will be elastically deformed by the pressure of the upper and lower blades, and due to the existence of the moment, the plate will bend, and a shear stress will appear inside the material near the gap. main stress. As the blade points A and b rotate to posit

1. Powder electrostatic spraying process: The working principle of the powder electrostatic spraying process is almost identical to the general electrostatic spraying method of liquid paint. The difference is that the powder spraying is dispersed rather than atomized. It is a coating sprayed by an electrostatic powder spray gun. The powder particles are negatively charged while being dispersed. The charged powder particles are affected by airflow and electrostatic attraction and are applied to the grounded power

Lithium-ion battery mixing and batching process 1. Preparation of positive electrode plate 1.1 Drying of raw materials (1) Lithium iron phosphate: vacuum baking. (2) Conductive agent: Baked at normal pressure. (3) Adhesive: Baked at normal pressure.(Lithium - Ion Battery Equipment) 1.2 Slurry stirring a) Pour NMP into the vacuum mixer and add PVDF into it; b) Add the positive electrode dry material evenly in four times. c) Stir at high speed under vacuum for 3-5 hours; d) Discharge and prepare for co

What are the key technologies for mobile lithium-ion battery energy storage systems? The emergency power supply system of lithium-ion battery mobile energy storage power stations uses lithium iron phosphate batteries with excellent safety, long life, and high energy density as energy storage power sources. At the same time, combined with the design ideas of online UPS, it can realize seamless switching between mains power and energy storage power supply, meet the uninterrupted power supply of emergency power supply

Commonly used lithium-ion battery pack balancing charging technologies include constant shunt resistance balancing charging, on-off shunt resistor balancing charging, uniform battery voltage balancing charging, switched capacitor balancing charging, buck converter balancing charging, inductor balancing charging, etc. When a group of lithium-ion batteries is charged in series, each battery should be charged evenly, otherwise the performance and life of the entire battery group will be affected during use. 1. Atta

Lithium-ion battery equalization takes a long time during discharge. Since the discharge speed is related to the resistance of the load resistor, balancing during system operation is inefficient. If equalization is performed during discharge and the equalization time is expected to be short, an external power transistor with a small on-resistance must be connected. This type of transistor is very common, such as MOSFET or FET. If you want to equalize quickly during discharge, you have to connect a low-value resi

Researchers from Rice University in the United States said that the electrolytic capacitor has excellent performance like a supercapacitor and can maintain a high battery capacity of 76% after thousands of charges and discharges or thousands of bends. James Tour, a chemistry professor at Rice University in the United States, and his colleagues recently developed an electrolytic capacitor that is thinner than paper. It is reported that this electrolytic capacitor has the characteristics of flexibility and large b

As a device that converts chemical energy into electrical energy, the battery has developed from the "Leyden Jar" in 1746 to the present, and has been divided into nearly 20 categories. In recent years, new batteries that have attracted market attention have emerged one after another. For example, hydrogen fuel-powered lithium batteries can generate electricity with near-zero carbon emissions by separating electrons in hydrogen gas and generating electric current. Many governments and automobile compan

Proton exchange membrane fuel-powered lithium battery (pEMFC) is a power generation device with the advantages of high specific power, high energy conversion efficiency, low-temperature start-up, and environmental friendliness. In recent years, it has still been a research hotspot in the field of fuel-powered lithium batteries. Its core component, the membrane electrode (MEA), is usually prepared by a hot pressing process from a gas diffusion layer, a catalytic layer and a proton exchange membrane. Key materials su