Abstract:
A battery case includes a deformable lateral wall. The battery case is provided to receive at least one electrochemical energy storage device. An electrochemical energy storage device includes a cell frame, which partially surrounds the device and in some areas forms the outer wall of the battery case. The battery case also includes a case cover, by which at least one electrochemical energy storage device can be electrically contacted. A lateral wall forms at least in some areas the outer wall of said battery case, wherein the stiffness of said lateral wall is less than the stiffness of the cell frame. When there is a pressure difference between the inner space of the battery case and the environment around the battery case, the lateral wall is therefore deformed and the volume of the battery case increases. The lateral wall is connected at least in some areas to said cell frame in a gas-tight manner.
Abstract:
In an electrochemical energy store including at least one spatially delimited galvanic cell, said galvanic cell includes a component or a device which causes the level of heat generated within the galvanic cell to drop to or below the level of heat dissipated from the cell beyond the spatial boundaries of the cell when a threshold temperature inside the galvanic cell is at least locally exceeded.
Abstract:
A prismatic electric power cell has two flat current conductors, which project substantially perpendicular from one of the outer surfaces of the cell and which are arranged substantially plane-parallel to each other. The current conductors each have at least one hole in the direction of the surface normal thereof, wherein the hole pattern of one current conductor is mirror-symmetrical to the hole pattern of the other current conductor. The invention further relates to an electric power unit which has a plurality of the electric power cells.
Abstract:
A battery assembly (1) comprises a number of electrochemical cells (2), in particular flat battery cells, which are received in a holding means (3), wherein the holding means (3) has at least one fixing plate (4) which at least indirectly adjoins a electrochemical cell (2), wherein, there is a defined surface pressure between a surface (5) of the electrochemical cell (2) and the fixing plate (4).
Abstract:
An electrochemical cell has an electrode stack, which is sealed off by a sheath, in particular in a gas-tight and/or liquid-tight manner, and at least one pressure-relief device, in particular in the form of a desired breaking point, wherein the pressure-relief device has a rupture diaphragm, which closes an aperture in the sheath.
Abstract:
A battery holding unit (2) for accepting at least one electrochemical cell (3) comprises a support surface (4) for supporting an electrochemical cell (3) and a contacting unit (6) that has a contact surface (8). The contact surface can be made to rest against a current collector (9) of the electrochemical cell (3), and the contacting unit includes at least one contacting rail (7) on which the contact surface (8) is arranged.
Abstract:
Disclosed is a frame for a galvanic cell consisting of an electrode stack that has a foil-type package, out of which at least two current collectors are brought. Said frame is designed so as to be able to be fixedly connected to the package of the cell when the cell is produced. When producing such a galvanic cell, a frame is fixedly connected to the package as the package is sealed.
Abstract:
A charging apparatus for electric energy stores includes a holding device configured to accommodate one or a plurality of electric energy stores, or rechargeable electric energy stores for vehicles, a charging and charge control device configured to charge, in a controlled manner, the electric energy store(s) accommodated in the holding device, and an air-conditioning device configured to control the temperature inside the holding device. The air-conditioning device is further configured to adjust the air inside the holding device to the surrounding conditions with respect to the dew point.
Abstract:
Battery 1, comprising at least a battery cell 2, which is arranged within a battery housing 3, characterized in that the battery housing 3 is partially filled with a cooling liquid 4. Method for cooling of said battery, wherein at least a portion of the cooling liquid 4 is evaporated.
Abstract:
An energy storage apparatus including at least first and second energy storage devices to supply, or also consume, an electric current. At least the second energy storage device is an electrochemical energy storage device. A control device controls at least supply of electric current by at least one of the energy storage devices and can also control consumption of electric current by at least one of the energy storage devices. Energy density of the second energy storage device is higher than energy density of the first energy storage device; energy density is defined as the ratio between energy that can be stored in the energy storage device in a charged state and weight of the energy storage device. The control device can trigger the first energy storage device to supply electric current when the electric current exceeds a predetermined threshold value for the current strength.