Special ultra-low temperature battery cells must not only possess good low-temperature activity but also maintain voltage stability under high-current impacts, which places higher demands on cell design.
Under extreme conditions, the battery steel casing, as the core packaging material for power batteries, plays a crucial role in ensuring battery integrity due to its impact resistance.
High-precision servo stamping equipment can achieve closed-loop control of the stamping stroke, ensuring consistent deformation in each pass and thus improving overall thickness uniformity.
In the welding process of the battery steel casing of power batteries, incomplete welding is one of the key issues affecting sealing and safety.
When the battery casing uses Battery Steel Casing, ensuring its insulation from the internal battery cells is a core aspect of ensuring battery safety and reliability.
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