Abstract: An electrode for a rechargeable battery includes a current collector having a first region and a second region. A dry electrode film is positioned on at least one surface of the first region and not positioned on the second region. Each of the first region and the second region includes a plurality of protrusions formed on the current collector. An average height of the protrusions in the second region is greater than an average height of the protrusions in the first region.

Abstract: A computer-implemented method of managing the productivity of fish in a land-based aquafarm through data prediction for each growth period is proposed. The method may include predicting, at a processor, a feed amount input to an aquaculture tank based on aquaculture tank sensing data. The method may also include predicting, at the processor, the growth of fish based on results of the prediction of the input feed amount.

Abstract: An apparatus and method for manufacturing an electrode and an electrode manufactured thereby are disclosed. An electrode manufacturing apparatus includes rollers including a first roller including at least one first surface treatment region on at least part of a surface thereof, and a second roller spaced apart from the first roller and rotatable in a different direction from the first roller; a film conveyor to convey a freestanding film toward the first roller; and a collector conveyor to convey a current collector toward a gap between the first roller and the second roller to stack the current collector on a surface of the freestanding film by the rollers.

Abstract: A computer-implemented method of managing the productivity of fish in a land-based aquafarm through data prediction for each growth period is proposed. The method may include predicting, at a processor, a feed amount input to an aquaculture tank based on aquaculture tank sensing data. The method may also include predicting, at the processor, the growth of fish based on results of the prediction of the input feed amount.