ORGANIC ACID ADDITIVES FOR SILICON-BASED LI ION BATTERIES

1 . An energy storage device comprising:

a first electrode and a second electrode, wherein one or both of the first electrode and the second electrode is a Si-based electrode;

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

an electrolyte composition; wherein

one or more of said first electrode, said second electrode and said electrolyte comprises at least one additive, wherein said additive comprises an organic acid compound; and

wherein said organic acid compound comprises one or more of 1-Propene-1,2,3-tricarboxylic acid; Aconitic acid; Isocitric acid; (Carboxymethoxy)succinic acid; Carboxysuccinic acid; Tricarballylic acid; 2-(Carboxymethylthio)succinic acid; trimesic acid; 1,2,4-Benzenetricarboxylic acid; 1,2,3-Benzenetricarboxylic acid; tricarboxylic acids; 1,3,5-Cyclohexanetricarboxylic acid; 1,2,3,4-Cyclobutanetetracarboxylic acid; Cyclohexane-1,2,4,5-tetracarboxylic acid; Pyromelitic acid; Ethylenediaminetetraacetic acid; (Ethylene glycol-bis(β-aminoethyl ether)-N,N,N′,N′-tetraacetic acid; tetrakis(4-carboxyphenyl)porphyrin; Diethylenetriaminepentaacetic acid; cis,cis,cis,cis-1,2,3,4-Cyclopentanetetracarboxylic acid; Cyclohexane-1,2,3,4,5,6-hexacarboxylic acid; mellitic acid; myo-Inositol,1,3,4,6-tetrakis(dihydrogen phosphate); and m-phosphoric acid.

2 . (canceled)

3 . (canceled)

4 . (canceled)

5 . (canceled)

6 . The energy storage device of claim 1 , wherein the second electrode is a Si-dominant electrode.

7 . The energy storage device of claim 1 , wherein the second electrode comprises a self-supporting composite material film.

8 . The energy storage device of claim 6 , wherein the Si-dominant electrode comprises:

greater than 0% and less than about 95% by weight of silicon 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 Si-dominant electrode together such that the silicon particles are distributed throughout the Si-dominant electrode.

9 . A method of forming an energy storage device, the method comprising:

forming an energy storage device comprising a cathode, an electrolyte composition, and an anode;

wherein one or more of said anode, said cathode and said electrolyte comprises at least one additive, wherein said additive comprises an organic acid compound;

wherein one or both of said cathode and said anode is formed using, at least, the following steps:

said electrode material is mixed to create a slurry;

said additive is added to said slurry;

said slurry is coated on metal foil; and

the coated metal foil is dried; and

wherein said organic acid compound comprises one or more of 1-Propene-1,2,3-tricarboxylic acid; Aconitic acid; Isocitric acid; (Carboxymethoxy)succinic acid; Carboxysuccinic acid; Tricarballylic acid; 2-(Carboxymethylthio)succinic acid; trimesic acid; 1,2,4-Benzenetricarboxylic acid; 1,2,3-Benzenetricarboxylic acid; tricarboxylic acids; 1,3,5-Cyclohexanetricarboxylic acid; 1,2,3,4-Cyclobutanetetracarboxylic acid; Cyclohexane-1,2,4,5-tetracarboxylic acid; Pyromelitic acid; Ethylenediaminetetraacetic acid; (Ethylene glycol-bis(β-aminoethyl ether)-N,N,N′,N′-tetraacetic acid; tetrakis(4-carboxyphenyl)porphyrin; Diethylenetriaminepentaacetic acid; cis,cis,cis,cis-1,2,3,4-Cyclopentanetetracarboxylic acid; Cyclohexane-1,2,3,4,5,6-hexacarboxylic acid; mellitic acid; myo-Inositol,1,3,4,6-tetrakis(dihydrogen phosphate); and m-phosphoric acid.

10 . (canceled)

11 . (canceled)

12 . (canceled)

13 . (canceled)

14 . The method of claim 9 , wherein the anode is a Si-dominant electrode.

15 . The method of claim 9 , wherein the anode comprises a self-supporting composite material film.

16 . The method of claim 14 , wherein the Si-dominant electrode comprises:

greater than 0% and less than about 95% by weight of silicon 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 Si-dominant electrode together such that the silicon particles are distributed throughout the Si-dominant electrode.