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US 2024/0405272 A1Published application
Electrolytes comprising fluoroalkoxysilane additives for lithium ion batteries including silicon-containing negative
AssigneeGM Global Technology Operations LLC
InventorsChuanlong WANG, Xiaosong HUANG
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Abstract
A battery that cycles lithium ions includes a positive electrode, a negative electrode, and an electrolyte infiltrating the positive electrode and the negative electrode. The negative electrode comprises a silicon-containing electroactive active material. The electrolyte includes an organic solvent, an inorganic lithium salt, and a fluoroalkoxysilane additive.
Claims20
A battery that cycles lithium ions, the battery comprising:
- a positive electrode;
- a negative electrode comprising a silicon-containing electroactive active material;
- and
- an electrolyte infiltrating the positive electrode and the negative electrode, the electrolyte comprising:
- an organic solvent;
- an inorganic lithium salt in the organic solvent;
- and
- a fluoroalkoxysilane additive in the organic solvent.
5 more elements
A battery that cycles lithium ions, the battery comprising:
- a positive electrode comprising a nickel-based electroactive material;
- a negative electrode comprising a silicon-containing electroactive active material;
- and
- an electrolyte infiltrating the positive electrode and the negative electrode, the electrolyte comprising:
- an organic solvent;
- an inorganic lithium salt in the organic solvent;
- and
- a fluoroalkoxysilane additive in the organic solvent, the fluoroalkoxysilane additive comprising a chemical compound having the following formula:
- X—Si(—OR1)3-a(R2)a, where X is a fluoroalkyl group or a fluoroaryl group, R1 and R2 are each individually an alkyl group, and a is 1 or 2.
6 more elements
Dependencies are inferred from the claim text.