Silicon-based energy storage devices with electrolyte containing dihydrofuranone based compound

1. An energy storage device comprising:

a first electrode;

a second electrode;

a separator between the first electrode and the second electrode; and

an electrolyte system comprising:

a dihydrofuranone based compound;

a linear carbonate;

a cyclic carbonate; and

a Li-containing salt; wherein the dihydrofuranone based compound is selected from the group consisting of alpha-(Trifluoromethyl)-gamma-butyrolactone and γ-Methyl-α-(trifluoromethyl-γ-valerolactone, or combinations thereof.

2. The energy storage device of claim 1 , wherein the linear carbonate is selected from the group consisting of ethyl methyl carbonate (EMC), dimethyl carbonate (DMC), and diethyl carbonate (DEC).

3. The energy storage device of claim 1 , wherein the electrolyte system further comprises a co-solvent selected from the group consisting of methyl acetate (MA), ethyl acetate (EA), methyl propanoate, and gamma butyrolactone (GBL).

4. The energy storage device of claim 1 , wherein the cyclic carbonate is selected from the group consisting of fluoroethylene carbonate (FEC), di-fluoroethylene carbonate (DiFEC), Trifluoropropylene carbonate (TFPC), ethylene carbonate (EC), vinyl carbonate (VC), propylene carbonate (PC), -fluoromethyl-5-methyl-1,3-dioxolan-2-one (F-t-BC), 3,3-difluoropropylene carbonate (DFPC), and 3,3,4,4,5,5,6,6,6-Nonafluorohexyl-1-ene carbonate.

5. The energy storage device of claim 1 , wherein the cyclic carbonate is a fluorine containing cyclic carbonate.

6. The energy storage device of claim 5 , wherein the fluorine containing cyclic carbonate is FEC at a concentration of about 5% or more.

7. The energy storage device of claim 1 , wherein the electrolyte is substantially free of non-fluorine containing cyclic carbonate.

8. The energy storage device of claim 1 , wherein the Li-containing salt is a fluorinated Li salt.

9. The energy storage device of claim 1 , wherein the Li-containing salt has a concentration of about 1 M or more.

10. The energy storage device of claim 1 , wherein at least one of the first electrode and the second electrode is a Si-base electrode.

11. The energy storage device of claim 10 , wherein the Si-based electrode is an anode.

12. The energy storage device of claim 11 , wherein the anode is a Si-dominant anode.

13. The energy storage device of claim 11 , wherein the anode comprises:

greater than 0% and less than about 99% by weight of Si particles, and

greater than 0% and less than about 90% by weight of one or more types of carbon phases, wherein at least one of the one or more types of carbon phases is a substantially continuous phase that holds the composite material film together such that the silicon particles are distributed throughout the composite material film.

14. The energy storage device of claim 13 , wherein the anode comprises greater than 50% and less than about 97% by weight of Si particles.