Clarios Advanced Solutions Gmbh

Johnson Controls Technology Company

Other

Johnson Controls Advanced Power Solutions Gmbh

Henning Eisermann

Marco Jansen

Ralf Joswig

Martin Wiegmann

Joerg Birkholz

Benjamin Schwarzien

Markus Hoh

Helge Brenner

Kristina Brettschneider

Matthias Doepke

Jörg Birkholz

The invention relates to an electrochemical cell unit for storing electrical energy, in which the electrochemical cell unit includes at least two lithium-ion pouch cells, a planar element for orienting the at least two lithium-ion pouch cells, and a cell carrier. The at least two lithium-ion pouch cells are provided in the cell carrier and are in electrical contact. The at least two lithium-ion pouch cells also have a first and a second terminal lug. The planar element is provided, preferably centrally, in the cell carrier and in addition, is sandwiched between the at least two lithium-ion pouch cells, at least some portions of the planar element being in contact with the pouch cells.

Cell unit, energy storage module and method for the assembly thereof

An energy storage module comprising a plurality of electrochemical cells for storing electric energy and comprising at least one contacting device for electrically contacting the plurality of electrochemical cells. Each of the electrochemical cells has a first flat connection lug for contacting a first electrode of the respective electrochemical cell and a second flat connection lug for contacting a second electrode of the respective electrochemical cell. The electrochemical cells are arranged in a stacked formation and form a cell pack such that the first and second flat connection lugs extend outwards from two opposing sides of the cell pack in an at least substantially perpendicular manner. According to the invention, the at least one contacting device is substantially comb-shaped in particular and has a plurality of teeth which are formed and arranged such that a first or second connection lug is or can be received between two adjacent teeth.

Energy storage module and assembly method

A cell assembly, having a cell frame, into which bus bars and a thermal plate are integrated, and a lithium-ion pouch cell having a first face and a second face opposite the first face are provided. The pouch cell further includes positive and negative cell terminals arranged at a top end of the pouch cell, and a compression element. The cell frame is configured to receive and house the pouch cell and the compression element in a space defined by the thermal plate and the cell frame.

Energy storage module cell assembly including pouch cell, compression element, thermal plate, and cell frame, and method for assembling the same

A lithium ion battery module includes a housing having a thermally conductive base and a cell assembly disposed within the housing and comprising pouch battery cells, a plurality of layers interleaved with the pouch battery cells, and a pair of end plates disposed on opposite ends of the cell assembly to compress the pouch battery cells. The battery cells are held within the cell assembly by cell frames. Each cell frame is formed from two frame pieces. The plurality of layers comprises a plurality of foam sheets and a plurality of thermally conductive sheets. The foam sheets are configured to allow swelling of the pouch battery cells while enabling a substantially constant level of compression of the pouch battery cells by the pair of end plates. The thermally conductive sheets conduct heat from the battery cells toward the thermally conductive base of the housing.

Cell assembly for a battery module

Electrochemical cell unit, energy storage module and method for the assembly thereof

The invention relates to an energy storage module comprising a plurality of electrochemical cells for storing electric energy and comprising at least one contacting device for electrically contacting the plurality of electrochemical cells. Each of the plurality of electrochemical cells has a first flat connection lug for contacting a first electrode of the respective electrochemical cell and a second flat connection lug for contacting a second electrode of the respective electrochemical cell. The plurality of electrochemical cells are arranged in a stacked formation and form a cell pack such that the first and second flat connection lugs extend outwards from two opposing sides of the cell pack in an at least substantially perpendicular manner. According to the invention, the at least one contacting device is substantially comb-shaped in particular and has a plurality of teeth which are formed and arranged such that a first or second connection lug is received or can be received between two adjacent teeth.

The invention relates to an accumulator arrangement which has a plurality of series-connected individual accumulators, each individual accumulator having at least one plus pole and a minus pole as externally accessible connection poles, busbar elements being secured on the connection poles in order to form the series connection, which each connect a minus pole of an individual accumulator to a plus pole of another individual accumulator, characterized in that a specific assembly sequence of said busbar elements is determined by the structural design of the busbar elements. The invention further relates to a busbar element and a to method for producing an accumulator arrangement.

Accumulator arrangement, busbar element therefor and method for producing an accumulator arrangement

The disclosure includes specifying an electrical connection arrangement, in particular for a rechargeable battery arrangement, having an electrical connecting element which permits the electrical energy to be transmitted between the rechargeable battery cells with as little loss as possible. In addition, there is disclosed an advantageous electrical connecting element in the form of a sheet-metal strip for the electrical connection arrangement.

Electrical connection arrangement and electrical connecting element and rechargeable battery arrangement therefor

A device for monitoring a rechargeable battery having a number of electrically connected cells includes at least one current interruption switch for interrupting current flowing through at least one associated cell and a plurality of monitoring units for detecting cell voltage. Each monitoring unit is associated with a single cell and includes a reference voltage unit for producing a defined reference threshold voltage and a voltage comparison unit for comparing the reference threshold voltage with a partial cell voltage of the associated cell. The reference voltage unit is electrically supplied from the cell voltage of the associated cell. The voltage comparison unit is coupled to the at least one current interruption switch for interrupting the current of at least the current flowing through the associated cell, with a defined minimum difference between the reference threshold voltage and the partial cell voltage.

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Uetze, Germany

Henning Eisermann