Lithium battery plasma cleaning machine processing process

• Categories:Technical Support
• Author:plasma cleaning machine-surface treatment equipment-CRF plasma machine-Sing Fung Intelligent Manufacturing
• Origin:
• Time of issue:2020-10-17
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(Summary description)At present, lithium batteries are mainly used in electronic and digital products, including tablet computers, laptops, mobile phones, digital cameras and other products. Plasma cleaning machine plays a vital role in the manufacture of lithium batteries. With the rapid development of electric vehicles and the gradual rise of energy storage industry, these two fields will also be the focus of lithium battery development in the future. As for the electronic industry, after years of rapid growth, electronic and digital products are expected to show a steady growth trend in the future. With the development of electronic and digital products towards portability, higher requirements have been put forward for battery products, and the battery industry will correspondingly develop towards high energy density, large capacity and light weight. The reliability of the power battery pack is very high, not only to stable discharge, but also to ensure that all the welding line does not fall down, so the welding line welding position is particularly important. Each welding line should be inspected according to national standards, more importantly, in the welding stage to improve the adhesion, so that the welding wire is firm. Cell processing is an important part in the production and assembly process of vehicle power lithium ion batteries. Cell processing includes edge sealing and pole ear leveling. After leveling the polar ear, use a plasma cleaning machine to clean it, which can remove organic matter and small particles and improve the reliability of subsequent laser welding. The vehicle used in the power of lithium batteries is divided into positive and negative, positive and negative from the metal strip leading out of the cell, colloquially said, the battery positive and negative is the contact point when charging and discharging. Whether the contact surface is clean will affect the reliability and durability of the electrical connection. In the production process, the pole ear of lithium battery cell is often uneven, bent or even twisted, which leads to false welding, false welding, short welding and other phenomena during welding. After leveling the electrode ear, impurities such as organics and particles are removed from the electrode ear surface by plasma cleaning machine, so as to make the weld surface roughened, which can ensure good weld effect of the electrode ear. Introduction to the technological process and advantages of the plasma cleaning machine: I. Lithium battery cell core plasma cleaning machine Processing flow: Core feeding → pole ear leveling → plasma cleaning → front side of the core → reverse side of the core → plasma cleaning → core discharging Two, plasma cleaning machine advantages; Plasma cleaning is to excite compressed air or process gas into plasma through high frequency and high pressure, and then conduct physical or chemical reactions with organic matter and small particles to form a clean and slightly roughened surface with no residue after thorough cleaning. The use of plasma cleaning cost is low, almost no waste gas, green environmental protection; Plasma cleaning machine can be installed on the assembly line, and other automatic equipment seamless docking, easy to operate and monitor. Plasma cleaning is a dry cleaning, relying on the active ion in the plasma "activation" to achieve the purpose of removing stains. This method can effectively remove the dirt, dust and other substances on the end face of the battery pole column, prepare for the battery welding, and reduce the bad welding.