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Laser welding technology to build high-performance batteries

by:J&D WATER     2020-03-20
On the market on the application of the battery energy storage and battery life of the demand is higher and higher, the weight of the battery and cost requirements. Batteries are usually contain many kinds of materials, such as zinc, steel, aluminum, copper, titanium, nickel, etc. , some metal can be made into electrodes, wires, or shell, based on the consideration of weight and cost minimization, they should be as thin as possible so that more new battery design material thickness range is between 25 to 250 microns. For each battery, strength, air tightness and the conductivity of the metal fatigue and corrosion resistance is a typical welding quality evaluation standard. Laser welding has always been the indispensable process in li-ion battery manufacturing process, all sorts of materials are widely used in laser welding, such as stainless steel shell, aluminum shell, polymer, etc. Laser welding of high speed is unmatchable by other welding technology, with the continuous development of industry, efficiency and quality of laser welding is put forward higher request, fiber laser has pushed the high-speed welding, the weld can be realized at low heat input and high solidification speed, can effectively control in hybrid welding of metal solidification defects. Most prone to cracking of the weld metal composition is copper and aluminum, this also happened to be in one of the most commonly used metal combination of lithium ion batteries. Optical fiber laser welding in this important metal welding technology, showed no crack characteristics of the welding. Some other need or unusual metal combination can also use laser welding is complete, especially when setting rate is very high. As long as the weld metal composition is able to realize, the crucial point is to assess their performance in the expected battery application ability, Especially the strength, toughness, metal fatigue and corrosion) 。 Metal laser welding equipment recommendation: preferential deals offer 4007001618 【 Metal laser welding equipment 】 Suitable for all kinds of complex welding, the welding of different equipment and 1 mm thick seam welding; Multi-channel fiber optic mode, welding transfer at the same time; 【 Mould laser welding equipment 】 Applicable mould industrialized, used for precision mold repair, such as digital products, mobile phones, toys, automobile, motorcycle, mold and other mold manufacturing and molding industry. 【 Gold and silver jewelry laser welding 】 Mainly used in jewelry, such as electronics, communications, handicrafts and other industries; 【 Large laser welding 】 Application in automobile body covering parts of compound, such as car door, side wai, window, floor, warehouse, the warehouse before, trunk lid. Laser welding more metal welding equipment
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