• Why Are Aluminum Used for the Cathode and Copper for the Anode in Lithium-Ion Batteries?

    Aluminum foil for cathodes and copper foil for anodes provide the optimal balance of electrochemistry, conductivity, weight, and cost in lithium-ion batteries. This material logic extends from internal current collectors to battery pack connections, including copper busbars, aluminum busbars, and copper–aluminum transition busbars, forming a continuous current pathway with stable conductivity, low loss, and long-term reliability, fundamental to high-performance new energy battery systems.

    2026-03-07 16:16:29 Silin Wu 22

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