A battery-powered motor may include an electric motor, a controller, and a housing. The electric motor may be wound to enable the battery-powered motor to achieve a non-limited motor maximum motor revolutions per minute (RPM) for at least one specified battery. The controlling current may include limiting current to the electric motor at lower RPMs, and limiting the current to prevent the RPM of the electric motor from exceeding a limited maximum motor RPM which is lower than the non-limited motor maximum RPM. The housing may enclose the electric motor and the controller and the specified battery. The housing may have a form factor to engage with a machine that engages with an internal combustion engine that has a maximum engine RPM that is approximately the same as the limited maximum motor RPM.

A battery pack includes: battery cells, each including end portions in a height direction thereof; a case accommodating the battery cells and a cooling fluid; and first and second holder plates coupled to the case to face each other along the case such that the end portions of the battery cells are insertable therethrough, an accommodation space being defined between the first and second holder plates to accommodate the cooling fluid, and the case, the battery cells, and the first and second holder plates have heights in the height direction that satisfy the condition: a height between the first and second holder plates<a height of the battery cells<a height of the case, and the battery pack further includes a potting resin on the first and second holder plates.

A battery pack includes: battery cells, each including end portions in a height direction thereof; a case accommodating the battery cells and a cooling fluid; and first and second holder plates coupled to the case to face each other along the case such that the end portions of the battery cells are insertable therethrough, an accommodation space being defined between the first and second holder plates to accommodate the cooling fluid, and the case, the battery cells, and the first and second holder plates have heights in the height direction that satisfy the condition: a height between the first and second holder plates<a height of the battery cells<a height of the case, and the battery pack further includes a potting resin on the first and second holder plates.

A battery pack includes battery cells; a battery cell holder in which the battery cells are accommodated; and an exhaust pipe, wherein the battery cell holder includes a first cell holder to which upper end portions of the battery cells are assembled, a second cell holder to which lower end portions of the battery cells are assembled, and a first separation member on the first cell holder, the exhaust pipe extends from an outer sider surface of the battery cell holder, and the exhaust pipe is in fluid communication with an exhaust path between the first separation member and an outer side surface of the first cell holder.

A battery pack includes battery cells; a battery cell holder in which the battery cells are accommodated; and an exhaust pipe, wherein the battery cell holder includes a first cell holder to which upper end portions of the battery cells are assembled, a second cell holder to which lower end portions of the battery cells are assembled, and a first separation member on the first cell holder, the exhaust pipe extends from an outer sider surface of the battery cell holder, and the exhaust pipe is in fluid communication with an exhaust path between the first separation member and an outer side surface of the first cell holder.

Systems and methods for storing energy for use by an electric vehicle are disclosed. Systems can include an electric vehicle battery pack including a rack configured to couple a plurality of independently removable battery strings to the vehicle, the battery strings configured to be selectively coupled in parallel to a vehicle power bus. The battery strings may include a housing, a plurality of electrochemical cells disposed within the housing, a circuit for electrically connecting the electrochemical cells, a positive high-voltage connector, a negative high-voltage connector, a switch within the housing, and a string control unit configured to control the switch. Each battery string can include a coolant inlet and a coolant outlet configured to couple with and sealingly uncouple from an external coolant supply conduit and an external coolant return conduit, and an auxiliary connector configured to couple with an external communications system and/or an external low-voltage power supply.

Systems and methods for storing energy for use by an electric vehicle are disclosed. Systems can include an electric vehicle battery pack including a rack configured to couple a plurality of independently removable battery strings to the vehicle, the battery strings configured to be selectively coupled in parallel to a vehicle power bus. The battery strings may include a housing, a plurality of electrochemical cells disposed within the housing, a circuit for electrically connecting the electrochemical cells, a positive high-voltage connector, a negative high-voltage connector, a switch within the housing, and a string control unit configured to control the switch. Each battery string can include a coolant inlet and a coolant outlet configured to couple with and sealingly uncouple from an external coolant supply conduit and an external coolant return conduit, and an auxiliary connector configured to couple with an external communications system and/or an external low-voltage power supply.

The present invention pertains to a supporting structure for receiving battery cells in a battery system of a hybrid or electrical vehicle, the supporting structure comprising a bottom plate and two side plates arranged on the bottom plate, wherein the inner sides of the two side plates and the bottom plate define an internal volume for receiving the battery cells and wherein each side plate comprises a flange at its outer side and wherein each flange comprises fixation means for fastening the supporting structure to an adjacent supporting structure.

The present invention pertains to a battery housing for receiving battery cells, preferably for use in an electric or hybrid vehicle, the battery housing comprising a bottom plate forming a base of the housing, wherein the bottom plate is connectable to another bottom plate of the same kind by means of a connection system to form a modular bottom of the housing.

The invention relates to a compartment for an apparatus likely to emit heat during its operation, in particular for an electrical energy storage device for a motor vehicle, this compartment having at least one cooling plate arranged to have a cooling fluid flowing through it and arranged to cool said apparatus, this compartment also including an upper housing arranged to receive said electrical equipment, and a lower housing in which at least one fluid connection element for supplying fluid to the cooling plate is placed, the lower and upper housings being insulated from one another in a fluid-tight manner.