Separator including a polysulfide barrier layer for a battery cell, and battery cell
AssigneeRobert Busch GmbH
InventorsBernd Schumann, Jean Fanous
Life of this patent
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Abstract
A vehicle traction battery includes a battery cell, the battery cell including a cathode, and anode, and a separator the anode and cathode. The separator includes at least one protective layer that is impermeable to polysulfides and at least one ion-conducting conductive layer whose composition is different than that of the protective layer and that is designed as a copolymer which includes a stabilizing phase and an ionically conductive phase, the protective layer including an inorganic substance.
Claims11
A separator (1) for separating an anode and a cathode in a battery cell, which includes at least one ion-conducting conductive layer (50) and at least one protective layer (40), which is impermeable to polysulfides, the conductive layer (50) and the protective layer (40) having different compositions from each other, wherein the conductive layer (50) is designed as a copolymer, which includes a stabilizing phase (2) as well as an ionically conductive phase (3), and the protective layer (40) includes an inorganic substance (7, 8).
The separator (1) as recited in one of the preceding claims, wherein the ionically conductive phase (3) contains acrylates or polyethylene oxide.
A battery cell, including at least one separator (1) as recited in one of the preceding claims.
Dependencies are inferred from the claim text.