US 11,996,521 B2
Electrochemical device comprising carbon quantum dot ionic compound electrolyte
Hong Chul Lim, Suwon-si (KR)
Assigned to GRAPHENIDE TECHNOLOGY CO., LTD., Gunpo-si (KR)
Appl. No. 16/616,304
Filed by GRAPHENIDE TECHNOLOGY CO., LTD., Gunpo-si (KR)
PCT Filed May 24, 2018, PCT No. PCT/KR2018/005923
§ 371(c)(1), (2) Date Nov. 22, 2019,
PCT Pub. No. WO2018/217044, PCT Pub. Date Nov. 29, 2018.
Claims priority of application No. 10-2017-0064231 (KR), filed on May 24, 2017; and application No. 10-2018-0058236 (KR), filed on May 23, 2018.
Prior Publication US 2020/0144671 A1, May 7, 2020
This patent is subject to a terminal disclaimer.
Int. Cl. H01M 10/0568 (2010.01); H01M 10/0525 (2010.01)
CPC H01M 10/0568 (2013.01) [H01M 10/0525 (2013.01); H01M 2300/0025 (2013.01)] 5 Claims
OG exemplary drawing
 
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.