Traditional chromic acid passivation is gradually being phased out due to environmental concerns, while phosphoric acid and phytic acid passivation technologies effectively prevent the electrolyte from contacting the steel shell by forming a dense passiva
In today's rapidly developing technological world, batteries, as a key component for energy storage and supply, have permeated all walks of life.
As aluminum-processed structural components, battery trays not only need extremely high mechanical strength to withstand collisions and road bumps, but also must possess excellent airtightness to prevent moisture and dust intrusion that could cause short
The battery casing, as the first line of defense protecting the battery cells, bears multiple responsibilities, including isolating the external environment, preventing electrolyte leakage, and resisting mechanical impact. Battery-specific steel, with its
Metal hardware, with its superior corrosion resistance, is the preferred choice for such harsh environments. "Stainless" doesn't mean absolutely rust-free; its long-term reliability stems from the synergistic effect of material composition, microstructure
Problems such as springback and wrinkling during the stamping process can lead to dimensional deviations in the steel shell, which in turn affect assembly accuracy and structural strength.