Stepwise-stacked seawater battery assembly

A stepwise-stacked seawater battery assembly comprising

• a first battery chamber including a first accommodation room and a first electrode group disposed in the first accommodation room, wherein the first electrode group has a first cathode and a first anode, which are arranged oppositely;
• a second battery chamber disposed above the first battery chamber and including an opening formed over the first accommodation room, a second accommodation room interconnecting with the opening, and a second electrode group disposed in the second accommodation room, wherein the second electrode group has a second cathode and a second anode, which are arranged oppositely;
• a seawater electrolytic liquid including a first electrolytic liquid received by the first accommodation room and contacting the first electrode group and a second electrolytic liquid received by the second accommodation room and contacting the second electrode group, wherein the first electrolytic liquid and the second electrolytic liquid has an altitude drop therebetween;
• and
• an electric-conduction set electrically connecting the first electrode group and the second electrode group,
• wherein the second electrolytic liquid leaves the second accommodation room through the opening to form a plurality of discontinuous liquid droplets flowing into the first electrolytic liquid in the first accommodation room to make the first electrolytic liquid in the first accommodation room and the second electrolytic liquid in the second accommodation room electrically isolated from each other.