Electrolyte for Lithium-Ion Batteries

Simple SummaryContent extracted from patent full text and abstract with AI.

The invention relates to a new electrolyte composition for lithium-ion batteries. This electrolyte includes an electrolyte salt and at least one solvent, where the solvent is primarily (≥50% to 100%) comprised of specific non-aromatic cyclic or linear nitrile compounds. These compounds are chemically tailored to improve the properties of the electrolyte used in lithium-ion batteries.

Use CasesContent extracted from patent full text and abstract with AI.

• Lithium-ion batteries for electric vehicles (EVs)
• Rechargeable batteries for consumer electronics (e.g., smartphones, laptops)
• Stationary energy storage systems (e.g., grid storage, renewable integration)
• Power supply for medical devices relying on rechargeable batteries
• Industrial energy storage and backup battery applications

BenefitsContent extracted from patent full text and abstract with AI.

• Improved safety and chemical stability of the battery electrolyte
• Potential for increased battery life and cycle stability
• Enhanced battery performance, especially in terms of energy density and charge/discharge efficiency
• Compatibility with modern battery technologies and manufacturing methods
• Possible reduction in battery degradation and failure rates

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to an electrolyte for an electrochemical energy storage device comprising an electrolyte salt and at least one solvent, characterized in that the solvent in the range of ≥ 50 wt.-% to ≤ 100 wt.-%, based on the total weight of the solvent, comprises a non-aromatic cyclic nitrile of the formula (1) NC-R or a mixture of the cyclic nitrile of the formula (1) NC-R and a linear nitrile of the formula (2) NC-R, wherein: R is selected from the group comprising C-C cycloalkyl and/or C-C cycloalkenyl, each unsubstituted or singly or multiply substituted with at least one substituent selected from the group comprising F, C-C alkyl, C-C alkoxy and/or C-C siloxy, each unsubstituted or singly or multiply substituted with fluorine, R is selected from the group comprising alkoxyalkyl, siloxyalkyl, wherein the alkyl group in each case has 1 to 8 carbon atoms and the alkoxy and siloxy groups in each case have 1 to 4 carbon atoms and are unsubstituted or singly or multiply substituted with fluorine, and/or unsubstituted or singly or multiply fluorine-substituted C-C alkyl.