The tungsten carbide battery industry slitting knives (electrode slitting knife, copper foil/aluminum foil slitting knife) produced by “PASSION” are divided into slitting upper knife and slitting lower knife, which are suitable for NS-Slitter, ARECONN, CLG, YINGHE, HAONENG, Sevenstar, Toray, Dali, Korea CIS, and other lithium battery slitting machines. This kind of slitting blades is made of ultra-fine grain original material, the product has good structure compactness, high processing precision, excellent material selection and professional edge grinding technology, which has achieved the advantages of flat and sharp cutting edge, small cutting resistance, High wear resistance, sharp and durable blade, its service life is more than 5 times that of high-speed steel, which effectively improves production and efficiency has unparalleled cost performance.