Abstract: An electrolyte composition for a lithium-ion battery, a lithium-ion battery, and also the use of a fluorine-containing cyclic carbonate component and lithium nitrate for improving the cycle stability and/or for increasing the performance of a lithium-ion battery.

Abstract: A battery component includes a polymer frame having at least one window, the polymer frame having a first planar side and an opposite second planar side, and a window edge between the first and second planar sides. The battery component also has a battery cell component having a separator and bipolar current collector, the battery cell component being attached to the frame, the separator or bipolar current collector being attached to the first planar side or the window edge. A battery stack, a method for handling the battery component as an individual unit are also provided, electric vehicle battery and electric vehicle are also provided.

Abstract: A method for manufacturing a battery component includes unrolling a polymer foil from a roll; forming windows into the unrolled polymer foil; and placing a battery cell component over each window. The battery cell component advantageously can be a solid-state electrolyte functioning as a separator, which is thereby well protected for handling and in later use.

Abstract: A battery component includes a polymer frame having at least one window, the polymer frame having a first planar side and an opposite second planar side, and a window edge between the first and second planar sides. The battery component also has a battery cell component having a separator and bipolar current collector, the battery cell component being attached to the frame, the separator or bipolar current collector being attached to the first planar side or the window edge. A battery stack, a method for handling the battery component as an individual unit are also provided, electric vehicle battery and electric vehicle are also provided.

Abstract: A battery module includes a plurality of battery cells connected in series, each battery cell having a cathode, an anode, and a separator separating the cathode and the anode, and a bipolar current collector; a plurality of polymer frames, each having a window to receive part of the one of the plurality of battery cells; two of the plurality of polymer frames defining a compartment; and electrolyte filling the compartment for one of the plurality of battery cells. A method is also provided.

Abstract: An electrolyte composition for a lithium-ion battery, a lithium-ion battery, and also the use of a fluorine-containing cyclic carbonate component and lithium nitrate for improving the cycle stability and/or for increasing the performance of a lithium-ion battery.