Silicon-based energy storage devices with functional terthiophene compound or thiophene oligomer compound containing electrolyte additives
AssigneeEnevate Corporation
InventorsLiwen Ji, Benjamin Yong Park
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Abstract
Electrolytes and electrolyte additives for energy storage devices comprising thiophene compounds are disclosed. The energy storage device comprises a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode, a separator between the first electrode and the second electrode, an electrolyte, and at least one electrolyte additive selected from a thiophene compound. In some embodiments, the thiophene compound is a terthiophene or a thiophene oligomer.
Claims14
An energy storage device comprising:
- a first electrode and a second electrode, wherein at least one of the first electrode and the second electrode is a Si-based electrode;
- a separator between the first electrode and the second electrode;
- an electrolyte;
- and
- at least one electrolyte additive comprising a thiophene oligomer compound,
- wherein the thiophene oligomer compound is of formula (I):
- which may be optionally substituted and wherein n=4−8.
A method of forming an energy storage device, the method comprising:
- forming an energy storage device comprising a cathode, an electrolyte, and an anode,
- wherein said electrolyte is formed by adding an electrolyte additive to an electrolyte composition and,
- wherein said electrolyte additive is a thiophene oligomer compound of formula (I):
- which may be optionally substituted and wherein n=4−8.
Dependencies are inferred from the claim text.