Sodium-sulfur dioxide secondary battery and method of manufacturing the same
AssigneeKorea Electronics Technology Institute
InventorsYoung Jun Kim, Goo Jin Jeong, Han Su Kim
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Abstract
The present invention relates to a sodium-sulfur dioxide secondary battery. The present invention provides a method of manufacturing a sodium-sulfur dioxide secondary battery and a configuration of the sodium-sulfur dioxide secondary battery manufactured using the method. The method includes preparing a cathode and an anode, and providing an inorganic liquid electrolyte containing sulfur dioxide (SO2) and a sodium salt (NaAlCl4) between the cathode and the anode.
Claims6
A method of manufacturing a sodium-sulfur dioxide secondary battery, the method comprising:
- preparing a cathode comprising a carbon material, the carbon material includes 5 to 15 at % of heteroatom-doped element, wherein the heteroatom- doped element includes one or more of nitrogen (N), oxygen (O), boron (B), fluorine (F), phosphorus (P), sulfur (S), and silicon (Si);
- preparing an anode made of a sodium-containing inorganic material;
- and
- providing an inorganic liquid electrolyte containing sulfur dioxide (SO2) and a sodium salt between the cathode and the anode.
A sodium-sulfur dioxide secondary battery, comprising:
- an anode comprising a sodium-containing inorganic material;
- an electrolytic solution containing an electrolyte (NaAlCl4) and a solvent (sulfur dioxide),
- wherein the electrolyte comprises NaAlCl4, and the solvent comprises sulfur dioxide (SO2);
- and
- a cathode comprising a carbon-based material in which NaCl is generated and decomposed according to an oxidation-reduction reaction of NaAlCl4-xSO2,
- wherein the carbon material includes 5 to 15 at % of heteroatom-doped element,
- wherein the heteroatom-doped element includes one or more of nitrogen (N), oxygen (O), boron (B), fluorine (F), phosphorus (P), sulfur (S), and silicon (Si).
Dependencies are inferred from the claim text.