Abstract: An accumulator, specifically a small accumulator, comprises at least two positive electrodes, each with a contact terminal, and at least two negative electrodes, each with a contact terminal. The accumulator further comprises at least one contacting device having at least one contacting element which is arranged between two adjoining contact terminals and interconnects said two adjoining contact terminals in an electrically conductive manner. The accumulator further comprises a housing, which entirely accommodates the at least two positive electrodes, the at least two negative electrodes and the at least one contacting device. The accumulator comprises at least one cladding structure, which encloses the at least one contacting device.

Abstract: A battery, in particular a rechargeable battery, with improved deep discharge stability is provided. The battery comprises at least one positive electrode with a positive current collector and at least one negative electrode with a negative current collector. The negative current collector is made of an electrically conductive non-metallic structural material, in particular structural carbon. Preferably, the battery is a lithium or lithium ion battery.

Abstract: An accumulator, specifically a small accumulator, comprises at least two positive electrodes, each with a contact terminal, and at least two negative electrodes, each with a contact terminal. The accumulator further comprises at least one contacting device having at least one contacting element which is arranged between two adjoining contact terminals and interconnects said two adjoining contact terminals in an electrically conductive manner. The accumulator further comprises a housing, which entirely accommodates the at least two positive electrodes, the at least two negative electrodes and the at least one contacting device. The accumulator comprises at least one cladding structure, which encloses the at least one contacting device.

Abstract: The present invention concerns an electrochemical cell of a layered electrode structure, oppositely poled electrode layers being arranged such that they are physically kept at a distance from one another by separator layers. The cells comprise a first housing part, which defines an interior volume and is designed in such a way that at the same time it forms an output conductor for a first electrode pole. It also comprises a pin, which extends from the outside into the interior volume and is designed in such a way that it forms an output conductor for a second electrode pole. The cell according to the invention also comprises an insulation, which insulates the first housing part electrically from the pin, and the electrode layers in the interior volume being in physical contact with their corresponding output conductors in such a way that there is a mechanical pretensioning between the electrode layers and the corresponding output conductor.

Abstract: In a battery having a wound electrode element which is made contact with by means of a pin, a contact connection is fitted on the outer face and is electrically connected to the pin which is arranged in the housing. The connection between the pin and the contact connection can also be tightened mechanically. In consequence, the pin can be used at the same time as the holding element for the wound electrode, which leads to space being saved within the battery housing. Furthermore, the connection which can be tightened mechanically can be produced very easily, is robust and is scarcely susceptible to corrosion. It also allows a seal, which is impermeable to gases, for the battery interior. The battery is particularly suitable for mobile small and miniature appliances which draw a high current, so that their battery must be replaced frequently.

Abstract: In a battery having a wound electrode element (28) which is made contact with by means of a pin (25), a contact connection (23a) is fitted on the outer face and is electrically connected to the pin (25) which is arranged in the housing (24). The connection (21, 25) between the pin (25) and the contact connection (23a) can also be tightened mechanically. In consequence, the pin (25) can be used at the same time as the holding element for the wound electrode (28), which leads to space being saved within the battery housing (24). Furthermore, the connection (21, 25) which can be tightened mechanically can be produced very easily, is robust and is scarcely susceptible to corrosion. It also allows a seal, which is impermeable to gases, for the battery interior. The battery is particularly suitable for mobile small and miniature appliances which draw a high current, so that their battery must be replaced frequently.