Electrolyte formulations
View Patent ↗An electrolyte formulation including additive compounds, additive salts, or combinations thereof to improve both low temperature and high temperature performance of lithium ion batteries as compared to conventional electrolytes. Some of these embodiments further include solvents in the electrolyte solution.
1. An electrolyte, comprising:
a first lithium salt;
an organic solvent; and
an additive comprising 2,2,2-trifluoroethyl piperidine-1-carboxylate.
2. A battery comprising an anode, a cathode, and the electrolyte solution of claim 1 .
3. The electrolyte of claim 1 further comprising a second lithium salt including an oxidizing anion.
4. The electrolyte of claim 3 wherein the second lithium salt is lithium nitrate.
5. The electrolyte of claim 3 wherein the second lithium salt is lithium oxalyldifluoroborate.
6. The electrolyte of claim 1 wherein the organic solvent comprises dimethoxyethane.
7. The electrolyte of claim 1 wherein the organic solvent comprises propyl propanoate.
8. The electrolyte of claim 1 wherein the organic solvent comprises dimethyl carbonate.
9. The electrolyte of claim 1 wherein the organic solvent comprises 1,1,2,2-tetrafluoro-3-(1,1,2,2-tetrafluoroethoxy)propane.
10. The electrolyte of claim 3 wherein the second lithium salt is LiBF 4 .