When Al alloy is used to be negativeelectrode, negative voltage produced more heat.
反极性期间由于铝合金作为阴极，阴极压降大电弧产热量也增大。
2
Each cell consists of a negativeelectrode and a positive electrode kept apart by a separator soaked in a conductive electrolyte that allows ions, but not electrons, to travel between them.
When a voltage is applied, positive charge builds up on one electrode and negative charge on the other, creating an attractive force that squeezes the polymer.