Polymeric fluorinated gel electrolyte
AssigneeGM Global Technology Operations LLC
InventorsZhe Li, Haijing Liu, Qili Su
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Abstract
A polymeric gel electrolyte for an electrochemical cell, such as a solid-state battery, is provided herein as well an electrochemical cell including the polymeric gel electrolyte. The polymeric gel electrolyte includes a lithium salt comprising sulfur and fluorine, a lithium salt comprising boron, a fluorinated plasticizer, a non-fluorinated plasticizer, and a polymeric host. A w/w ratio of the fluorinated plasticizer to the non-fluorinated plasticizer is 9:1 to 1:9.
Claims20
A polymeric gel electrolyte for an electrochemical cell, wherein the polymeric gel electrolyte comprises:
- a lithium salt comprising sulfur and fluorine;
- a lithium salt comprising boron;
- a fluorinated plasticizer;
- a non-fluorinated plasticizer;
- and
- a polymeric host,
- wherein a w/w ratio of the fluorinated plasticizer to the non-fluorinated plasticizer is 9:1 to 1:9.
An electrochemical cell that cycles lithium ions, the electrochemical cell comprising:
- a first electrode comprising a first electroactive material;
- a second electrode comprising a second electroactive material;
- and
- an electrolyte layer disposed between the first electrode and the second electrode, wherein at least one of the first electrode, the second electrode, and the electrolyte layer comprises a polymeric gel electrolyte comprising:
- a lithium salt comprising sulfur and fluorine;
- a lithium salt comprising boron;
- a fluorinated plasticizer;
- a non-fluorinated plasticizer;
- and
- a polymeric host.
Dependencies are inferred from the claim text.