IP Library Granted Patent US 10,014,553
Granted Patent B2
US 10,014,553 · App. 15/588,517 · Granted Jul 3, 2018

Electrolyte formulations for lithium ion batteries

Inventors: Gang Cheng (San Diego, CA); Ye Zhu (San Diego, CA); Deidre Strand (San Diego, CA); Boutros Hallac (Franklin, WI); Bernhard M. Metz (Glendale, WI)
Assignees: WILDCAT DISCOVERY TECHNOLOGIES, INC; JOHNSON CONTROLS TECHNOLOGY COMPANY
H01M10/056H01M10/052H01M10/0525H01M10/0567H01M10/0568
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Quick Facts
Patent No.
US 10,014,553
App. No.
15/588,517
Granted
Jul 3, 2018
Kind
B2
Abstract

Electrolyte solutions including additives or combinations of additives that provide low temperature performance and high temperature stability in lithium ion battery cells.

Claims (34)

1. An electrolyte formulation, comprising:

an organic solvent;

a lithium salt present at a concentration suitable for conducting lithium ions through the electrolyte formulation; and

an additive salt comprising sodium oxalate;

wherein the additive salt is different from the lithium salt.

2. The electrolyte formulation of claim 1 further comprising lithium bis(oxalato)borate as a second additive.

3. The electrolyte formulation of claim 1 further comprising cesium nitrate as a second additive.

4. The electrolyte formulation of claim 1 further comprising maleic anhydride as a second additive.

5. The electrolyte formulation of claim 1 further comprising tris(trimethylsilyl)phosphate as a second additive.

6. The electrolyte formulation of claim 1 further comprising trimethylsilyl polyphosphate as a second additive.

7. The electrolyte formulation of claim 1 further comprising 4-fluorophenyl isocyanate as a second additive.

8. The electrolyte formulation of claim 1 further comprising 1,4-butane sultone as a second additive.

9. An electrolyte formulation, comprising:

an organic solvent;

a lithium salt present at a concentration suitable for conducting lithium ions through the electrolyte formulation; and

an additive salt comprising cesium oxalate, wherein the additive salt is different from the lithium salt.

10. An electrolyte formulation, comprising:

an organic solvent;

a lithium salt present at a concentration suitable for conducting lithium ions through the electrolyte formulation; and

an additive salt comprising 1-(4,5-dihydro-1,3-thiazol-2-yl)piperidine oxalate, wherein the additive salt is different from the lithium salt.

11. The electrolyte formulation of claim 9 further comprising lithium bis(oxalato)borate as a second additive.

12. The electrolyte formulation of claim 9 further comprising cesium nitrate as a second additive.

13. The electrolyte formulation of claim 9 further comprising maleic anhydride as a second additive.

14. The electrolyte formulation of claim 9 further comprising tris(trimethylsilyl)phosphate as a second additive.

15. The electrolyte formulation of claim 9 further comprising trimethylsilyl polyphosphate as a second additive.

16. The electrolyte formulation of claim 9 further comprising 4-fluorophenyl isocyanate as a second additive.

17. The electrolyte formulation of claim 9 further comprising 1,4-butane sultone as a second additive.

18. The electrolyte formulation of claim 10 further comprising lithium bis(oxalato)borate as a second additive.

19. The electrolyte formulation of claim 10 further comprising cesium nitrate as a second additive.

20. The electrolyte formulation of claim 10 further comprising maleic anhydride as a second additive.

21. The electrolyte formulation of claim 10 further comprising tris(trimethylsilyl)phosphate as a second additive.

22. The electrolyte formulation of claim 10 further comprising trimethylsilyl polyphosphate as a second additive.

23. The electrolyte formulation of claim 10 further comprising 4-fluorophenyl isocyanate as a second additive.

24. The electrolyte formulation of claim 10 further comprising 1,4-butane sultone as a second additive.

Assignments (8)
SECURITY INTEREST Recorded Dec 30, 2025
From: WILDCAT DISCOVERY TECHNOLOGIES
To: HSBC VENTURES USA INC.
Reel/Frame 074128/0374 →
RELEASE OF SECURITY INTEREST Recorded Apr 17, 2024
From: SILICON VALLEY BANK
To: WILDCAT DISCOVERY TECHNOLOGIES, INC.
Reel/Frame 067133/0750 →
FIRST LIEN PATENT SECURITY AGREEMENT Recorded Aug 29, 2019
From: CPS TECHNOLOGY HOLDINGS LLC
To: CITIBANK N.A., AS COLLATERAL AGENT
Reel/Frame 050229/0029 →
ABL PATENT SECURITY AGREEMENT Recorded Aug 29, 2019
From: CPS TECHNOLOGY HOLDINGS LLC
To: CITIBANK N.A., AS COLLATERAL AGENT
Reel/Frame 050229/0079 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 19, 2019
From: METZ, BERNHARD M.; HALLAC, BOUTROS
To: JOHNSON CONTROLS TECHNOLOGY COMPANY
Reel/Frame 049808/0267 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 19, 2019
From: JOHNSON CONTROLS TECHNOLOGY COMPANY
To: CPS TECHNOLOGY HOLDINGS LLC
Reel/Frame 049806/0001 →
SECURITY INTEREST Recorded Nov 6, 2018
From: WILDCAT DISCOVERY TECHNOLOGIES, INC.
To: SILICON VALLEY BANK
Reel/Frame 047426/0902 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 11, 2017
From: CHENG, GANG; ZHU, YE; STRAND, DEIDRE
To: WILDCAT DISCOVERY TECHNOLOGIES, INC
Reel/Frame 043837/0973 →
Continuity (2)
Division 14746737 · Jun 22, 2015
Related Publication 20170244130A1 · Aug 24, 2017