Abstract: The invention refers to a method for manufacturing an electrode assembly for a battery cell, whereat segments of a first electrode are placed between a continuous first separator sheet and a continuous second separator sheet; segments of a second electrode are placed on an opposite side of the first separator sheet in respect of the segments of the first electrode and on an opposite side of the second separator sheet in respect of the segments of the first electrode such that a tape element is formed; and the tape element is folded such that the segments of the first electrode and the segments of the second electrode are aligned in a stacking direction. The invention also refers to a battery cell, in particular a lithium ion battery cell, comprising an electrode assembly manufactured using the method according to the invention.

Abstract: A battery module includes a number of battery cells, which are connected to each other at connection poles. The battery cells have respective hard shell housings, in which at least one bus bar extends. A number of wound and/or stacked battery cells is electrically contacted by the at least one bus bar.

Abstract: The invention relates to an energy storage unit (1) comprising a plurality of energy storage sub-units (5) that have a first electrode (6) and a second electrode (7), the first electrode (6) and second electrode (7) of a particular energy storage sub-unit (5) being arranged on opposite sides of said energy storage sub-unit (5), and said energy storage unit comprising a receiving device (2) that has a plurality of adjacently-arranged receiving units each spatially delimited by a lateral wall, one energy storage sub-unit (5) being introduced into each receiving unit of said receiving device (2), and the energy storage sub-units (5) being secured in said receiving units such that the electrodes (6, 7) are arranged in a first contact level and in a second contact level, the electrodes (6, 7) arranged in the first contact level being electrically interconnected by means of a first printed circuit board (10) and the electrodes (6, 7) arranged in the second contact level (9) being electrically interconnected by mean

Abstract: The invention relates to a method for producing an electrode stack for a battery cell, comprising the following steps: providing a ribbon-shaped anode element (45), providing a ribbon-shaped cathode element (46), providing a first ribbon-shaped separator element (16), producing a ribbon-shaped composite element (50) by means of joining together the cathode element (46), the anode element (45) and the first separator element (16), simultaneously cutting the composite element (50) so as to produce multiple plate-shaped composite segments, stacking the produced composite segments to form a segment stack, stacking multiple segment stacks. The invention relates to a battery cell that comprises at least one electrode stack that is produced according to the method in accordance with the invention.

Abstract: The invention relates to a battery module housing which forms a first housing segment (21) and a second housing segment (22) which form accommodation spaces (3, 31, 32) that are separated from one another, each housing segment being used to accommodate at least one battery cell (13), wherein the battery module housing (1) is closable using a cover element (5) which forms a first cover segment (61) and a second cover segment (62). The first housing segment (21) is closable using the first cover segment (61) and the second housing segment (22) is closable using the second cover segment (62), wherein the cover element (5) has a dividing line (7) which is formed in such a way that the first cover segment (61) and the second cover segment (62) can be separated from one another along the dividing line (7).

Abstract: A device for controlling a temperature of an electric energy store of a vehicle includes a first flow path which opens into a housing of the electric energy store and has an air conditioning system for air-conditioning a passenger compartment of the vehicle. The air conditioning system includes a heating and/or cooling device and a second flow path which leads from the at least one heating and/or cooling device into the passenger compartment. The two flow paths are connected in the device such that an airflow in one of the two flow paths is fluidically independent of an airflow in the respective other of the two flow paths. The device has a heat exchanger which is connected in the two flow paths for a pure heat exchange between the air flows in the two flow paths.

Abstract: The invention refers to a method for manufacturing an electrode assembly for a battery cell, whereat segments of a first electrode are placed between a continuous first separator sheet and a continuous second separator sheet; segments of a second electrode are placed on an opposite side of the first separator sheet in respect of the segments of the first electrode and on an opposite side of the second separator sheet in respect of the segments of the first electrode such that a tape element is formed; and the tape element is folded such that the segments of the first electrode and the segments of the second electrode are aligned in a stacking direction. The invention also refers to a battery cell, in particular a lithium ion battery cell, comprising an electrode assembly manufactured using the method according to the invention.

Abstract: The invention relates to a method for operating a battery cell (10), in particular a lithium-ion battery cell, having at least one wound or stacked electrode assembly (28) arranged in a housing, said electrode assembly comprising a first electrode layer (12), at least one separator layer (16) and a second electrode layer (14), and a non-aqueous electrolyte containing one or more solvents and one or more conductive salts. When the battery cell (10) reaches a critical state, a chemical substance or a chemical substance mixture (46) is released, which forms complexes with the lithium ions (22) in the electrolyte (26).

Abstract: The present invention relates to an energy storage unit (1) having a plurality of electrochemical cells (2), wherein the electrochemical cells (2) each have a first outer face (3) comprising a first electrode (5), and a second outer face (4) comprising a second electrode (6), and the electrochemical cells (2) are electrically interconnected owing to the lined-up arrangement (9) of the electrochemical cells (2) by way of the outer faces (3, 4) by means of the electrodes (5, 6). The energy storage unit (1) additionally comprises a first frame element (7) and a second frame element (8), which frame elements are directly or indirectly connected to one another, wherein the first frame element (7) is arranged at one end (10) of the lined-up arrangement (9) of the electrochemical cells (2), and the second frame element (8) is arranged at the other end (11) of the lined-up arrangement (9) of the electrochemical cells (2).

Abstract: A battery pack (50) comprising at least one battery module (10) with a plurality of battery cells (2) which are held together by at least one holding element (31, 32). The at least one battery module (10) is arranged in a housing (70), wherein the at least one holding element (31, 32) is attached to the housing (70) by fixing elements (41, 42, 43, 44).

Abstract: A filling device (1.1, 1.2, 1.3, 1.4) for filling battery devices (BV) with battery cells (4.1, 4.2, 4.3, 4.4, 4.5), in particular lithium-ion battery cells, comprising a retaining device (2.1, 2.2, 2.3, 2.4) with a fixing device (3.1, 3.2, 3.3, 3.4) for fixing battery cells (4.1, 4.2, 4.3, 4.4, 4.5), and a filling nozzle suitable for connecting to battery devices (BV) and for filling battery devices (BV) with battery cells, wherein the retaining device comprises a cooling device (5) that is suitable for cooling the retaining device and the battery cells.

Abstract: A battery cell having at least one battery cell housing and at least one at least partially flexible and moldable wall, wherein the wall is arranged on the battery cell housing. The wall is at least partially comprised of a biomimetic material. Also a battery module with at least one battery cell according to the invention.

Abstract: A battery module comprising a plurality of chambers of a first type, a chamber of a second type, a plurality of chambers of a third type, at least one battery unit positioned in one of the plurality of chambers of the first type, and switching electronics positioned in the chamber of the second type. At least one of the plurality of chambers of the third type is positioned between one of the plurality of chambers of the first type and the chamber of the second type.

Abstract: The invention relates to a method for producing an electrode stack for a battery cell, comprising the following steps: providing a ribbon-shaped anode element (45), providing a ribbon-shaped cathode element (46), providing a first ribbon-shaped separator element (16), producing a ribbon-shaped composite element (50) by means of joining together the cathode element (46), the anode element (45) and the first separator element (16), simultaneously cutting the composite element (50) so as to produce multiple plate-shaped composite segments, stacking the produced composite segments to form a segment stack, stacking multiple segment stacks. The invention relates to a battery cell that comprises at least one electrode stack that is produced according to the method in accordance with the invention.

Abstract: The invention relates to a battery module housing which forms a first housing segment (21) and a second housing segment (22) which form accommodation spaces (3, 31, 32) that are separated from one another, each housing segment being used to accommodate at least one battery cell (13), wherein the battery module housing (1) is closable using a cover element (5) which forms a first cover segment (61) and a second cover segment (62). The first housing segment (21) is closable using the first cover segment (61) and the second housing segment (22) is closable using the second cover segment (62), wherein the cover element (5) has a dividing line (7) which is formed in such a way that the first cover segment (61) and the second cover segment (62) can be separated from one another along the dividing line (7).

Abstract: A rechargeable lithium battery (28) has at least two layer cells (10) arranged on top of one another, where each layer cell (10) comprises an aluminum electrode layer (12, 12?, 12?), a cathode layer (14), a polymer electrolyte layer (16), a lithium anode layer (18) and a copper electrode layer (20, 20?, 20?) which are arranged on top of one another, wherein the copper electrode layer (20, 20?) of a layer cell (10) and the aluminum electrode layer (12, 12?) of an adjacent layer cell (10) are formed by a copper layer and an aluminum layer of a CUPAL sheet (22, 22?).

Abstract: The invention relates to a method for operating intrinsically safe battery cells after charging of an intrinsically safe battery cell at a low temperature. In accordance with the invention, provision is made here for the determination of the discharge curve of the battery cell to then be performed, for the discharge curve of the battery cell to be analyzed in respect of the presence of plating criteria and for a change to operation in a monitoring mode to be made if at least one plating criterion is present, wherein the capacity of the intrinsically safe battery cell is monitored in the monitoring mode. The invention furthermore relates to an intrinsically safe battery cell which is designed for implementing the method.

Abstract: A battery module (19) having a number of electrically interconnected battery cells (10), wherein the individual battery cells (10) are temperature-controlled by means of a temperature control fluid (70). Between the battery cells (10), there extends a duct system (30, 62, 66, 68) through which the temperature control fluid (70) flows. The duct system (30, 62, 66, 68) is separated completely from a degassing system (16, 54) of the battery cells (10).

Abstract: The invention relates to a method for determining the temperature of a battery, comprising the following steps: a) determining the state of charge of at least one battery cell; b) determining a change in the open-circuit voltage (VL1, VL2) of the at least one battery cell immediately after the end of the flow of an electric current (IL, IE) through the at least one battery cell; and c) determining the temperature of the at least one battery cell on the basis of the state of charge and the change in the open-circuit voltage (VL1, VL2). The method described above economically enables especially reliable operation of the battery that is stable over the long term.

Abstract: A battery pack (50) comprising at least one battery module (10) with a plurality of battery cells (2) which are held together by at least one holding element (31, 32). The at least one battery module (10) is arranged in a housing (70), wherein the at least one holding element (31, 32) is attached to the housing (70) by fixing elements (41, 42, 43, 44).