Proposing a Zn-ion battery (ZIB) system with aqueous electrolyte.
Modern ZIBs are particularly well suited for this challenge:
Potential for lower costs, both capex and opex even on cell level
Aqueous ZIBs are inherently safe in terms of being non flamable
even higher potential for lower costs on system level since no fire suppression is necessary
ZIBs lower energy densities are no drawback in many waterborne transport applications
Target energy densities:
100 Wh/l, 50 Wh/kg (cell level)
80 Wh/l, 40 Wh/kg (system level)