Electrolyte formulations for lithium ion batteries
Electrolyte solutions including additives or combinations of additives that provide low temperature performance and high temperature stability in lithium ion battery cells.
1. A lithium ion battery, comprising:
a cathode;
an anode comprising a graphite; and
an electrolyte formulation comprising a lithium salt; an organic solvent; and an additive comprising an allyl carbonate compound;
wherein the additive forms a solid-electrolyte interphase layer on the anode.
2. The lithium ion battery of claim 1 wherein the additive comprises allyl phenyl carbonate.
3. The lithium ion battery of claim 1 wherein the additive comprises allyl methyl carbonate.
4. The lithium ion battery of claim 1 further comprising lithium bis(oxalato)borate as a second additive.
5. The lithium ion battery of claim 1 further comprising LiClO 4 as a second additive.
6. The lithium ion battery of claim 1 further comprising CsNO 3 as a second additive.
7. The lithium ion battery of claim 1 further comprising 1,4-butane sultone as a second additive.
8. The lithium ion battery of claim 1 wherein the additive comprises diallyl carbonate.
9. The lithium ion battery of claim 1 wherein an additive comprising an allyl carbonate compound at a concentration of 0.5 weight percent of the total weight of the electrolyte formulation.