Abstract
In this experiment, multi-walled carbon nanotubes (MWCNTs) are coated onto stainless steel mesh by electrophoretic deposition and assemble a seawater battery cell with magnesium/aluminum alloy as anode and MWCNTs/stainless steel composite as cathode. We find that MWCNT coating reduces internal resistance and facilitates charge transfer at electrode/electrolyte interfaces, allowing seawater batteries to yield higher current and stable voltage output. Meanwhile, no pollutants are released into seawater while discharging.