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Low temperature lithium battery production process Production process and control: raw material inspection, raw material pretreatment, component inspection, vacuum induction melting, rapid cooling ingot casting, semi-finished product inspection, heat treatment, crushing powder, manufacturing, screening, post-processing, vacuum or nitrogen-filled packaging, Product testing.
Semi-finished products: The inspection of semi-finished products includes three aspects:
The vacuum heat treatment furnace is maintained with argon after being evacuated. The main purpose of the heat treatment process is to make the product uniform and firm (to eliminate internal stress), and to ensure the flat pressing, uniformity and good cycle life characteristics of the alloy. The key is to guarantee the temperature and vacuum, and to measure the oxygen content.
The whole process of alloy crushing, pulverizing and packaging is completely closed under argon protection to ensure that the oxygen content of the alloy is very low. There are four aspects of finished product inspection.