Electrolyte additive and metal included in composite electrode containing Mg, Al, Cu, and Cr for alkali metal storage system

US10297863B2 · kind B2 · utility

Assignee

• Bayerische Motoren Werke Aktiengesellschaft · DE

Inventors

• Antonia Reyes Jimenez · Munster, DE
• Martin Winter · Munster, DE
• Johannes KASNATSCHEEW
• Marius Amereller · Munster, DE
• Raphael Wilhelm Schmitz · Munster, DE
• Ralf Wagner · Solingen, DE
• Dennis Gallus · Munster, DE
• Benjamin Streipert · Munster, DE
• Bjoern Hoffmann · Darmstadt, DE
• Stephan ROESER · Munster, DE
• Juan Pablo Badillo Jimenez · Munster, DE
• Vadim Kraft · Nordwalde, DE

Key dates

• Filing date: Apr 10, 2017
• Grant date: May 21, 2019
• Expiry date: Jun 10, 2037

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E60/10
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

An alkali metal-based energy storage system, having at least one composite electrode containing an active material, and an electrolyte containing a lithium salt dissolved in an aprotic organic solvent, an ionic fluid and/or a polymer matrix. The electrolyte further contains an additive selected from a cation or a compound of a metal selected from Mg, Al, Cu and/or Cr. The metal selected from Mg, Al, Cu and/or Cr is applied onto the active material and/or the active material of the composite electrode is partially replaced by the metal selected from Mg, Al, Cu and/or Cr in the form of a metal powder or a metal salt.