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US 12,322,757 B2Granted
Isatin derivative redoxamer for electrochemical device
AssigneeUchicago Argonne, LLC
InventorsSambasiva Reddy Bheemireddy, Lu Zhang, Zhengcheng Zhang
Life of this patent
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Abstract
An electrochemical device includes a compound that is an isatin derivative. The electrochemical device may be a lithium ion battery, a sodium ion battery, or a redox flow battery, and the isatin derivative may be a bipolar redox active material.
Claims17
An electrochemical device comprising a cathode, an anode, and an electrolyte comprising a compound represented by Formula I:
- wherein:
- R1, R2, R3, R4, and R5 are each independently H, alkyl, haloalkyl, alkoxy, aryl, or polyether;
- or where any of R1, R2, R3, R4, and R5 is a linker to a polymer backbone, where the linker is absent, a carbonyl, an alkyl ester group, aryl-E, E-aryl, alkylene, or -alkyl-O-alkyl-;
- E is an alkylene or alkyl-O-alkyl;
- at least one of R1, R2, R3, R4, and R5 is other than H;
- when R1 is H, R3 is other than methyl.
3 more elements
An electrochemical device comprising:
- a catholyte reservoir containing a catholyte material dissolved in a first non-aqueous solvent;
- an anolyte reservoir containing an anolyte material dissolved in a second non-aqueous solvent;
- and
- a reaction chamber;
- wherein:
- the first and second non-aqueous solvents are the same or different;
- the catholyte material, the anolyte material, or both the catholyte material and the anolyte material is an isatin derivative compound;
- the electrochemical device is a redox flow battery;
- and
- the isatin derivative compound is represented by Formula I:
- R1, R2, R3, R4, and R5 are each independently H, alkyl, haloalkyl, alkoxy, aryl, or polyether;
- or where any of R1, R2, R3, R4, and R5 is a linker to a polymer backbone, where the linker is absent, a carbonyl, aryl-E, E-aryl, an alkyl ester group, alkylene, or -alkyl-O-alkyl-;
- and
- E is an alkylene or alkyl-O-alkyl;
- wherein at least one of R1, R2, R3, R4, and R5 is other than H;
- and
- when R1 is H, R3 is other than methyl.
14 more elements
An electrochemical device comprising:
- a cathode;
- an anode;
- a separator disposed between the cathode and the anode;
- and
- an electrolyte comprising:
- a non-aqueous solvent;
- a salt;
- and
- an isatin derivative that is other than isatin and 5-methylisatin;
- wherein:
- the electrochemical device is a lithium ion battery or a sodium ion battery;
- and
- the isatin derivative is a compound represented by Formula I:
- R1, R2, R3, R4, and R5 are each independently H, alkyl, haloalkyl, alkoxy, aryl, or polyether;
- or where any of R1, R2, R3, R4, and R5 is a linker to a polymer backbone, where the linker is absent, a carbonyl, aryl-E, E-aryl, an alkyl ester group, alkylene, or -alkyl-O-alkyl-;
- and
- E is an alkylene or alkyl-O-alkyl;
- wherein at least one of R1, R2, R3, R4, and R5 is other than H;
- and
- when R1 is H, R3 is other than methyl.
17 more elements
Dependencies are inferred from the claim text.