The invention relates to the field of
energy storage and conversion, in particular to a
carbon dioxide source concentration difference power generation
battery system which comprises the following parts: a
carbon dioxide capture solution,
electrolyte ions, an
ion exchange membrane, electrodes and a circuit, the
carbon dioxide capture solution is prepared from water,
tertiary amine and primary amine;
tertiary amine and primary amine in a specific proportion in the carbon dioxide capture solution have
high carbon dioxide affinity, carbon dioxide can be captured in a
primary battery,
hydrogen ions in a left
cell and a right
cell of the battery can generate concentration difference in the carbon dioxide capture process,
hydrogen ion membrane expansion transportation can occur under the action of
hydrogen ion concentration gradient, and the carbon dioxide can be captured in the
primary battery. The osmotic energy is converted into
electric potential energy, so that concentration difference power generation is realized; compared with the prior art, the design method of the
battery system is simple, various added electrolytes are low in price, and the
battery system is suitable for large-scale production, so that the battery
system has a wider application prospect.