CPC H01M 10/0568 (2013.01) [H01M 10/0525 (2013.01); H01M 2300/0025 (2013.01)] | 5 Claims |
1. An electrochemical device comprising: a first electrode, a second electrode spaced apart from the first electrode, and an electrolyte filled between the first electrode and the second electrode, wherein the electrochemical device is configured such that a reversible electrochemical redox reaction occurs in at least one of the first electrode and the second electrode, and wherein the electrolyte comprises a salt form consisting of: (i) a metal cation and (ii) a carbon quantum dot anion having an average diameter in the range of 2 to 12 nanometers (nm) and a surface potential of −20 mV or less, wherein the carbon quantum dot anion is in a form of graphite oxide having a carboxyl functional group or a hydroxyl functional group.
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