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US 2014/0154590 A1Published application
Electrolyte For Lithium-Based Energy Stores
AssigneeWestfäLische Wilhelms-UniversitäT MüNster
InventorsElisabeth Kramer, Rene Schmitz, Stefano Passerini, Martin Winter
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Abstract
The invention relates to an electrolyte, comprising at least one lithium salt, a solvent, and at least one compound according to general formula (1). The invention further relates to lithium-based energy stores comprising such an electrolyte.
Claims13
An electrolyte containing at least one lithium salt, one solvent and at least one compound of the following general formula (1)
- wherein:
- X is selected from the group comprising F, Cl, Br and/or I;
- R1 is hydrogen or a C1-6-aliphatic group, unsubstituted or simply or multiply substituted with at least one substituent selected from the group comprising F, Cl, Br, I, C1-4-alkyl, carbonyl oxygen and/or C1-4-alkoxy;
- R2 is a C1-6-aliphatic group optionally simply or multiply substituted with at least one substituent selected from the group comprising F, Cl, Br, I, C1-4-alkyl, carbonyl oxygen and/or C1-4-alkoxy;
- wherein R1 and R2X are not simultaneously CF3;
- or
- R1 and R2 together form simultaneously a saturated 5- or 6-membered ring which can be simply or multiply substituted with at least one substituent selected from the group comprising F, Cl, Br, I, C1-4-alkyl, carbonyl oxygen and/or C1-4-alkoxy.
4 more elements
Use of a compound of general formula (1) shown hereinbelow
- wherein:
- X is selected from the group comprising F, Cl, Br and/or I;
- R1 is hydrogen or a C1-6-aliphatic group, unsubstituted or simply or multiply substituted with at least one substituent selected from the group comprising F, Cl, Br, I, C1-4-alkyl, carbonyl oxygen, and/or C1-4-alkoxy;
- R2 is a C1-6-aliphatic group, optionally simply or multiply substituted with at least one substituent selected from the group comprising F, Cl, Br, I, C1-4-alkyl, carbonyl oxygen, and/or C1-4-alkoxy;
- wherein R1 and R2X are not simultaneously CF3;
- or
- R1 and R2 together form a saturated 5- or 6-membered ring which can be simply or multiply substituted with at least one substituent selected from the group comprising F, Cl, Br, I, C1-4-alkyl, carbonyl oxygen, and/or C1-4-alkoxy,
- in electrolytes for primary and secondary electrochemical lithium-based energy stores, preferably selected from the group comprising lithium batteries, lithium ion batteries, lithium ion accumulators, lithium polymer batteries and/or lithium ion condensers.
5 more elements
Dependencies are inferred from the claim text.