�Development of Lithium Sulfur/Silicon Batteries with High Specific Energy Density for the Automotive Applications� is a new concept to increase the range of electric cars. This new type of energy storage device combines a Li2S cathode with a Si anode and will thereby offer a high specific energy density up to 450 Wh/kg on cell level. Besides the electrodes and other battery materials, new electrolytes are also investigated.This work will highlight synthesis and characterization of electrolytes based on silyl substituted carbonates. The systematic modification of structural parts leads to a structure-property relationship with respect to electrochemical and thermal performance. Therefore the conductivity of various compounds doped with common lithium ion conducting salts was determined, as well as the electrochemical stability using cyclic voltammetry. Thermogravimetric analysis and differential scanning calorimetry are used to investigate the thermal stability of the battery.

Carbonate based electrolytes for lithium sulfur silicon batteries

245th National Meeting (2013)

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