A cell module has a plurality of electrochemical pouch cells. Each pouch cell has at least a first and second electrode, a separator arranged between the electrodes, and a flexible outer sleeve. Each pouch cell has a circular outer rim and a circular through-hole arranged in the center of the pouch cell. An outer cell terminal is arranged on the outer rim of each pouch cell, and an inner cell terminal is arranged on an inner rim of the through-hole. The cell module has an inner current collector in the form of a cylindrical rod and an outer current collector in the form of a cylinder jacket. The inner current collector extends along a mid-axis of the cell module, and the outer current collector is arranged concentrically with respect to the inner current collector.

The invention relates to a method for producing a battery module having a plurality of prismatic battery cells (2, 20) which are arranged next to one another in a longitudinal direction (4) of the battery module (1) and in particular are additionally braced with one another, wherein the plurality of battery cells (2) are furthermore received in an interior (30) of a housing (3) of the battery module (1), wherein the plurality of battery cells (2, 20) are positioned in the housing (3) prior to the curing of an adhesive which is positioned in each case between a bottom surface (31) of the housing (3) of the battery module (1) and a bottom surface (21) of the battery cells (2), and in particular is fixed until the adhesive cures.

A battery module housing includes a top plate and a bottom plate forming an upper wall and a lower wall, respectively, and a first side plate and a second side plate forming side walls, respectively, the battery module housing having a rectangular tube shape provided to accommodate battery cells in an inner space thereof, wherein the battery module housing has four bonding portions each including an adhesive along a longitudinal direction, the bonding portions located at two sites between opposing side edges of the top plate and top surfaces of the first side plate and second side plate, respectively, and at two sites between opposing side edges of the bottom plate and bottom surfaces of the first side plate and second side plate, respectively.

A battery module housing includes a top plate and a bottom plate forming an upper wall and a lower wall, respectively, and a first side plate and a second side plate forming side walls, respectively, the battery module housing having a rectangular tube shape provided to accommodate battery cells in an inner space thereof, wherein the battery module housing has four bonding portions each including an adhesive along a longitudinal direction, the bonding portions located at two sites between opposing side edges of the top plate and top surfaces of the first side plate and second side plate, respectively, and at two sites between opposing side edges of the bottom plate and bottom surfaces of the first side plate and second side plate, respectively.

A battery cell includes a casing provided with an accommodation space; and an electrode assembly accommodated in the accommodation space and contacting the casing. The electrode assembly may include a negative electrode including a first current collector and a negative electrode mixture applied to the first current collector; a positive electrode including a second current collector and a positive electrode mixture applied to the second current collector; a separator interposed between the positive electrode and the negative electrode; and a guide member accommodating at least one of the negative electrode and the positive electrode and pressurized or stretched by at least one of the negative electrode and the positive electrode to contract or expand.

A battery cell includes a casing provided with an accommodation space; and an electrode assembly accommodated in the accommodation space and contacting the casing. The electrode assembly may include a negative electrode including a first current collector and a negative electrode mixture applied to the first current collector; a positive electrode including a second current collector and a positive electrode mixture applied to the second current collector; a separator interposed between the positive electrode and the negative electrode; and a guide member accommodating at least one of the negative electrode and the positive electrode and pressurized or stretched by at least one of the negative electrode and the positive electrode to contract or expand.

A battery module includes: a cell assembly including a plurality of battery cells and a cell housing in which the plurality of battery cells are accommodated; and a battery management system (BMS) assembly including a BMS circuit board, a BMS cover accommodating the BMS circuit board, and at least one temperature sensor module connected to the BMS circuit board and fixedly mounted on a rear surface of the BMS cover, the BMS assembly being mountably and detachably provided on a side surface of the cell housing, and the temperature sensor module contacts one of the plurality of battery cells.

A battery (100), in particular a lithium-ion battery, having: a plurality of battery cells (10), which are assembled to form a cell stack and are received in a housing (20), wherein the battery cells (10) are bonded to the base (21) of the cell housing (20) by a heat conductive bonding material (TIM), a plurality of spacer elements (11), wherein a spacer element (11) of the plurality of spacer elements (11) is arranged in each case between two adjacent battery cells (10) of the plurality of battery cells (10), two end plates (22), which delimit the cell stack at the ends, wherein the end plates (22) are connected by at least one tensioning band (23), wherein the at least one tensioning band (23) at least partially surrounds the cell stack circumferentially. To this end, it is provided according to the invention that the at least one tensioning band (23) is bonded to the side walls of the battery cell (10) by a band bonding material.

A battery (100), in particular a lithium-ion battery, having: a plurality of battery cells (10), which are assembled to form a cell stack and are received in a housing (20), wherein the battery cells (10) are bonded to the base (21) of the cell housing (20) by a heat conductive bonding material (TIM), a plurality of spacer elements (11), wherein a spacer element (11) of the plurality of spacer elements (11) is arranged in each case between two adjacent battery cells (10) of the plurality of battery cells (10), two end plates (22), which delimit the cell stack at the ends, wherein the end plates (22) are connected by at least one tensioning band (23), wherein the at least one tensioning band (23) at least partially surrounds the cell stack circumferentially. To this end, it is provided according to the invention that the at least one tensioning band (23) is bonded to the side walls of the battery cell (10) by a band bonding material.

A thermal management device for a battery pack 104 of an UAV is disclosed. The thermal management device 100 comprises an insulating enclosure 102 that is made of a material comprising at least an EPP foam for enclosing the battery pack 104, and one or more heating coils 110. The heating coils 110 are electrically powered from an external power source 112 for pre-heating the insulating enclosure 102 to a predefined temperature before flight of the UAV. The EPP foam of the insulating enclosure 102 provides high thermal insulation for retaining the heat of the insulating enclosure 102 for heating the battery pack 104 and maintaining the temperature of the battery pack 104 above a threshold temperature when the UAV flies in a sub-zero ambience temperature. The insulating enclosure 102 with the one or more heating coils 110 are configured to provide uniform heat distribution across the battery pack 104.