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US 10,707,521 B2Granted
Electrolyte formulations for lithium ion batteries
AssigneesWildcat Discovery Technologies, Inc., Johnson Controls Technology Company
InventorsGang Cheng, Ye Zhu, Deidre Strand, Boutros Hallac, Bernhard M. Metz
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Abstract
Electrolyte solutions including additives or combinations of additives that provide low temperature performance and high temperature stability in lithium ion battery cells.
Claims20
A lithium ion battery comprising:
- a cathode including at least one material from the group consisting of a metal oxide, a metal silicate, a metal fluoride, and a metal sulfide;
- an anode;
- and
- an electrolyte formulation comprising:
- an organic solvent;
- a lithium salt present at a concentration suitable for conducting lithium ions through the electrolyte formulation;
- a first additive salt comprising a hexafluorophosphate;
- and
- a second additive salt comprising lithium bis(oxalato)borate present at a concentration no greater than 0.2 mol/liter,
- wherein the first and second additive salts are different from the lithium salt.
7 more elements
A lithium ion battery comprising:
- a cathode;
- an anode;
- and
- an electrolyte formulation comprising:
- an organic solvent;
- a lithium salt present at a concentration suitable for conducting lithium ions through the electrolyte formulation;
- a first additive salt comprising sodium hexafluorophosphate;
- and
- a second additive salt comprising lithium bis(oxalato)borate present at a concentration no greater than 0.2 mol/liter,
- wherein the first and second additive salts are different from the lithium salt.
7 more elements
Dependencies are inferred from the claim text.