Lithium-sulphur (Li-S)-type electrochemical battery and production method thereof

摘要

The invention relates to a novel lithium-sulphur type electrochemical battery A.;According to the invention, the positive electrode (1) is made solely from a porous electronic conductor substrate forming a current collector and the electrolyte contains lithium polysulphides (Li2Sn) as sources of lithium and sulphur ions, said lithium polysulphides being formed ex-situ and not in the battery.;The invention also relates to a method for the production of said device.

主权项

1. A lithium-sulphur electrochemical battery, comprising:
a positive electrode, a negative electrode and, a separator inserted between the positive electrode and the negative electrode and impregnated with an electrolyte in liquid or polymer gel form, wherein the positive electrode is made solely from a porous electronic conductor substrate forming a current collector, the electrolyte comprises a lithium polysulphide Li2Sn as a source of lithium and sulphur ions, and the lithium polysulphide is formed ex-situ.