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Great news! Shenyuan Source Compound Integrated Collector Successfully Enters BYD Factory
Release time：2024-09-19
Recently, the Shenyuan Ultrasonic Composite Current Collector has successfully entered Company B. The equipment covers functions such as slitting, roll welding, and coating, and has completed the factory FAT acceptance. The production line efficiency exceeds 30m/min, and the process yield rate is over 99.99%. The cathode transmittance of the composite current collector after welding is ≤ 10%, the welding surface is smooth and polished, the post welding tensile force is ≥ 12N, and the residual is close to full welding state, exceeding the standard to meet Company B's welding requirements.
The successful delivery of the roll welding integrated machine marks that DeepSource Ultrasonic has the ability to independently produce, design, develop, and output complete machines, and is continuously accelerating the process of updating, iterating, innovating, and mass producing composite fluid ultrasonic welding technology. Assist domestic lithium battery manufacturers to take a big step towards the era of fast charging and achieve "cost reduction and efficiency improvement"!
Lithium batteries have been widely used due to their high energy density, excellent cycling performance, and high discharge rate. However, the current collector positive electrode of conventional lithium-ion batteries usually uses metal aluminum foil, and the negative electrode usually uses metal copper foil. However, once a short circuit occurs inside the battery, the current cannot be cut off, which ultimately leads to heat accumulation and causes thermal runaway. The safety issues caused by thermal runaway are very obvious.
In recent years, researchers have adopted a new type of current collector to replace conventional metal current collectors. This type of composite current collector usually uses non-conductive polymer films as substrates, and a layer of metal is deposited on both sides of the substrate through vacuum evaporation, electroplating, and other methods. For example, metal aluminum is plated on both sides of PET (polyethylene terephthalate) film as the positive electrode current collector, and metal copper is plated on both sides of PP (polypropylene ester) film as the negative electrode current collector. These composite current collectors have improved the safety performance of the battery to a certain extent, while also reducing the weight of the current collector and further increasing the weight energy density of the battery. Based on the above advantages, composite current collectors are widely used in the manufacturing process of lithium batteries.
With strong research and development capabilities and market insights, Shenyuan quickly made forward-looking layouts in the field of composite current collector welding. It was the first in the industry to develop a composite current collector integrated machine (pole piece slitting roller welding glue coating integrated machine) and an ultrasonic roller welding single machine, promoting the technological transformation of lithium batteries in China and the localization of key welding equipment for lithium batteries.
TiTLE: Introduction to Deep Source Composite Collector
Technological innovation is the primary driving force for enterprise development. The domestic lithium battery energy storage industry is moving from the stage of scale expansion to the stage of intense global competition. Faced with fierce international competition and strict trade barriers, Shenyuan Ultrasonic can only continuously innovate in technology. Through "strengthening the foundation, forging the long board, and filling the gaps", it can use its own meager efforts to promote the Chinese lithium battery energy storage industry towards a more prosperous and sustainable future!
