Silicone epoxy ether compositions, methods for making same and uses therefor

Patent metadata

Field	Value
Publication number	US-9923243-B2
Application number	US-201314371491-A
Country	US
Kind code	B2
Filing date	Jan 10, 2013
Priority date	Jan 10, 2012
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

The present invention relates to silicone epoxy compositions, methods for making same and uses therefore. In one embodiment, the silicone epoxy ether compositions of the present invention are silane epoxy polyethers that contain at least one epoxy functionality. In another embodiment, the silicone epoxy ether compositions of the present invention are siloxane epoxy polyethers that contain at least one epoxy functionality. In still another embodiment, the present invention relates to silicone epoxy polyether compositions that are suitable for use as an electrolyte solvent in a lithium-based battery, an electrochemical super-capacitors or any other electrochemical device.

First claim

What is claimed is:

1. A silicon-containing polyether electrolyte solvent composition comprising:
(a) at least one compound selected from the compositions represented by the following structure:
M 1 a M 2 b D 1 c D 2 d T 1 e T 2 f Q g

wherein M 1 is selected from R 1 R 2 R 3 SiO 1/2 or M′ a monovalent organic radical containing one or more heteroatoms O, N and/or S; wherein M 2 is selected from R 4 R 5 R 6 SiO 1/2 ; wherein D 1 is selected from R 7 R 8 SiO 2/2 or D′ a divalent organic radical containing one or more heteroatoms O, N and/or S; wherein D 2 is selected from R 9 R 10 SiO 2/2 ; wherein T 1 is selected from R 11 SiO 3/2 or T′ a trivalent organic radical containing one or more heteroatoms O, N and/or S; wherein T 2 is selected from R 13 SiO 3/2 ; wherein Q is selected from SiO 4/2 or Q′ a tetravalent organic radical containing one or more heteroatoms O, N and/or S;
R 1 , R 2 , R 3 , R 5 , R 6 , R 7 , R 8 , R 10 , and R 11 are each independently selected from monovalent hydrocarbon radicals having from 1 to about 10 carbon atoms; monovalent hydrocarbon heteroatom-containing radicals having from 1 to about 10 carbon atoms wherein the one or more heteroatoms are selected from one or more halogens, O, N, or combinations of any two or more thereof; or monovalent polyalkylene oxide residuals;
R 4 , R 9 and R 13 are each independently selected from monovalent radicals that contain an oxirane moiety, with the proviso that at least one of R 1 , R 2 , R 3 , R 5 , R 6 , R 7 , R 8 , R 10 , R 11 , M′, D′, T′ or Q′ contains a polyalkylene oxide residual if none of R 4 , R 9 and R 13 contains a polyalkylene oxide residual;
and wherein a, b, c, d, e, f, and g are independently selected from either zero or a positive integer subject to the provisos that 0<a+b+c+d+e+f+g<50 and b+d+f+g>0.

2. The composition of claim 1 , wherein the polyalkylene oxide is selected from group represented by the following structure:
—(CH 2 CH 2 O) m (CH 2 CH(CH 3 )O) n (CH 2 CH 2 CH 2 O) z —

wherein m is a positive integer; wherein n and z are independently either zero or a positive integer, with the proviso that 0<m+n+z<20.

3. The composition of claim 1 , wherein the composition is an electrolytic solvent for at least one lithium salt.

4. The composition of claim 3 , wherein the lithium salt is selected from one or more of LiClO 4 , LiCF 3 SO 3 , LiBF 4 , LiPF 6 , LiAsF 6 , LiN(SO 2 CF 3 ) 2 , LiTFSI, LIBOB), or combinations of any two or more thereof.

5. The composition of claim 3 , wherein the lithium salt is LiPF 6 .

6. The composition of claim 1 , wherein the composition is an electrolytic solvent for at least one lithium salt and wherein the electrolytic solvent is capable of solubilizing up to about 2 M of the one or more lithium salts.

7. The composition of claim 1 , wherein the composition is an electrolytic solvent for at least one lithium salt and wherein the electrolytic solvent is capable of solubilizing up to about 1.9 M of the one or more lithium salts.

8. The composition of claim 1 , wherein the composition is an electrolytic solvent for at least one lithium salt and wherein the electrolytic solvent is capable of solubilizing up to about 1.8 M of the one or more lithium salts.

9. The composition of claim 1 , wherein the composition is an electrolytic solvent for at least one lithium salt and wherein the electrolytic solvent is capable of solubilizing up to about 1.7 M of the one or more lithium salts.

10. The composition of claim 1 , wherein the composition is an electrolytic solvent for at least one lithium salt and wherein the electrolytic solvent is capable of solubilizing up to about 1.5 M of the one or more lithium salts.

11. The composition of claim 1 , wherein the composition is an electrolytic solvent for at least one lithium salt and wherein the electrolytic solvent is capable of solubilizing up to about 1.2 M of the one or more lithium salts.

12. The composition of claim 1 , wherein the composition is an electrolytic solvent for at least one lithium salt and wherein the electrolytic solvent is capable of solubilizing up to about 1 M of the one or more lithium salts.

13. The composition of claim 1 , wherein the combination of a composition in accordance with claim 1 and at least one lithium salts yields a solution having an ionic conductivity of greater than about 0.5 mS/cm at room temperature.

14. The composition of claim 1 , wherein the combination of a composition in accordance with claim 1 and at least one lithium salts yields a solution having an ionic conductivity of greater than about 1 mS/cm at room temperature and wherein such solution is free of one or more alkyl carbonate compounds.

15. The composition of claim 1 , wherein the electrolyte solvent composition further comprises from about 1 percent by volume to about 10 percent by volume of one or more of a compound selected from allyl glycidyl ethers, diethylene glycol monomethylethers, allyl methoxy polyethers, or any combination of two or more thereof in combination with the one or more silicon-containing polyether compounds.

16. The composition of claim 1 , wherein the electrolyte solvent composition further comprises at least one alkyl carbonate compound in combination with one or more silicon-containing polyether compounds.

17. The composition of claim 16 , wherein the at least one alkyl carbonate is selected from ethylene carbonate, dimethyl carbonate, or mixtures thereof.

18. The composition of claim 16 , wherein the at least one alkyl carbonate is present in a range of about 20 to about 50 percent by volume based on the total volume of the one or more silicon-containing polyether compounds and the one or more alkyl carbonates.

19. The silicon-containing polyether electrolyte solvent composition of claim 1 comprising:
(a) at least one compound selected from the compositions represented by the Formulas (IV) and/or (V):

wherein the PEG portion of the compound of Formula (V) represents —(OCH 2 CH 2 ) 4 OCH 3 .

20. The composition of claim 19 , wherein the composition is an electrolytic solvent for at least one lithium salt selected from LiClO 4 , LiCF 3 SO 3 , LiBF 4 , LiPF 6 , LiAsF 6 , LiN(SO 2 CF 3 ) 2 , LiTFSI, LiBOB, or combinations of any two or more thereof.

21. The composition of claim 20 , wherein the lithium salt is selected from one or more of LiPF 6 , LiBOB and/or LiTFSI.

22. The composition of claim 20 , wherein the lithium salt is LiPF6.

23. The composition of claim 19 , wherein the composition is an electrolytic solvent for at least one lithium salt and wherein the electrolytic solvent is capable of solubilizing up to about 2 M of the one or more lithium salts.

24. The composition of claim 19 , wherein the composition is an electrolytic solvent for at least one lithium salt and wherein the electrolytic solvent is capable of solubilizing up to about 1.9 M of the one or more lithium salts.

25. The composition of claim 19 , wherein the composition is an electrolytic solvent for at least one lithium salt and wherein the electrolytic solvent is capable of solubilizing up to about 1.8 M of the one or more lithium salts.

26. The composition of claim 19 , wherein the composition is an electrolytic solvent for at least one lithium salt and wherein the electrolytic solvent is capable

Assignees

• Gupta Neeraj
• Sivasubramanian Karthikeyan
• Phukan Monjit
• Momentive Performance Mat Inc

Inventors

• Gupta Neeraj
• Sivasubramanian Karthikeyan
• Phukan Monjit

Classifications

• H01M2300/0082

  Organic polymers · CPC title

• H01M10/0569 Primary

  characterised by the solvents · CPC title

• H01M10/0565

  Polymeric materials, e.g. gel-type or solid-type · CPC title

• H01M6/04

  Cells with aqueous electrolyte · CPC title

• H01G11/64

  characterised by additives · CPC title