Abstract: Embodiments provide a secondary battery pouch including a sealing portion formed at an outside of the secondary battery pouch constituting a battery cell and configured to seal an inner space of the secondary battery pouch. The sealing portion includes: a first fusion portion having a smallest thickness in the sealing portion; and a second fusion portion having a largest thickness in the sealing portion. The first fusion portion and the second fusion portion are continuously formed at least one time alternately in a direction from an innermost side of the sealing portion in contact with the inner space of the secondary battery pouch to an outer side of the sealing portion.

Abstract: A lithium secondary battery according to embodiments of the disclosed technology includes a pouch that includes a first pouch case including a first peripheral portion and a first conductive unit formed at the first peripheral portion, and a second pouch case including a second peripheral portion and a second conductive unit formed at the second peripheral portion, the second pouch case being sealed with the first pouch case, and an electrode assembly accommodated in the pouch. The first conductive unit and the second conductive unit are in contact with each other to form an electric circuit along the first peripheral portion or the second peripheral portion.

Abstract: A battery cell according to the present disclosure may include an electrode assembly, a pouch formed of a pouch sheet and including a receiving part configured to accommodate the electrode assembly, and a curing agent, wherein the pouch may be formed of the pouch sheet and includes a folding part including a first folding bonding part and a second folding bonding part, which face and are in contact with each other, the folding part may include a folding body extending from the receiving part, and a folding tail extending from the folding body and folded to face the folding body, and the folding body may be bent so that the curing agent is disposed between the folding tail and the receiving part.

Abstract: A secondary battery is provided in the present application. The secondary battery includes an electrode assembly including a cathode and an anode facing the cathode, thermoelectric elements columns arranged on a surface of the electrode assembly, and a circuit structure that electrically connects the thermoelectric element columns. The circuit structure includes a series/parallel switching unit configured to switch a connection between the thermoelectric element columns from a series connection to a parallel connection or from a parallel connection to a series connection. The thermoelectric element columns are connected selectively in parallel or in series to improve rapid charging and life-span properties.

Abstract: The disclosure relates to an apparatus for charging or discharging including a case, a charging or discharging module unit and an air treatment unit provided inside the case, an equipment temperature sensor located in the case and sensing an equipment temperature, a module hole formed by communicating with the outside, and a controller charging or discharging, where the controller is configured to discharge at least a portion of the air discharged from the air treatment unit to the outside of the case through the module hole based on usage current of the charging or discharging module unit and the equipment temperature, a battery charging or discharging system including the same, and a control method thereof.

Abstract: The present disclosure relates to a controlling method of a charging and discharging device, using a charging and discharging device including a plurality of units, wherein the units include a plurality of chambers accommodated in the units, wherein the chambers include a plurality of channels accommodated in the chambers, and wherein the channels charge or discharge secondary batteries, comprising: selecting a plurality of channels, each of which is connected to a secondary battery; and charging-and-discharging each of the secondary batteries connected to the selected plurality of channels, wherein the selecting a plurality of channels includes selecting the plurality of channels in a same unit.

Abstract: A temperature management system for a room with a charge discharge device installed is provided, and the temperature management system includes one or more charge discharge devices installed in a room, performing charging or discharging of a battery, and including an external air conditioning module adjusting air temperature in the room, and a managing server controlling operation of the external air conditioning module of each of the charge discharge devices to adjust temperature in the room. When the temperature of the room with a charge discharge device installed increases due to heat generated by charging or discharging of the battery, the charge discharge devices may cool the air of the room, and a load to an air conditioner installed in a building can be reduced.

Abstract: A pouch-type secondary battery comprises an electrode assembly, and a pouch case surrounding the electrode assembly. At least three surfaces, among four surfaces of a side surface in a thickness direction of the electrode assembly, include a sealed portion. An electrode lead is drawn out from a sealed portion of at least one of the three sealed portions. The pouch-type secondary battery includes a fire extinguishing device on an external surface of the pouch case.

Abstract: A lithium secondary battery according to embodiments of the disclosed technology includes a pouch and an electrode assembly accommodated in the pouch. The pouch includes a first pouch case including a first peripheral portion and a first magnetic unit formed at the first peripheral portion, and a second pouch case including a second peripheral portion and a second magnetic unit formed at the second peripheral portion. The second magnetic unit has an opposite polarity from that of the first magnetic unit, and the second pouch case is sealed with the first pouch case.

Abstract: A lithium secondary battery according to embodiments of the disclosed technology includes a pouch that includes a first pouch case including a first peripheral portion and a first conductive unit formed at the first peripheral portion, and a second pouch case including a second peripheral portion and a second conductive unit formed at the second peripheral portion, the second pouch case being sealed with the first pouch case, and an electrode assembly accommodated in the pouch. The first conductive unit and the second conductive unit are in contact with each other to form an electric circuit along the first peripheral portion or the second peripheral portion.

Abstract: A secondary battery is provided in the present application. The secondary battery includes an electrode assembly including a cathode and an anode facing the cathode, thermoelectric elements columns arranged on a surface of the electrode assembly, and a circuit structure that electrically connects the thermoelectric element columns. The circuit structure includes a series/parallel switching unit configured to switch a connection between the thermoelectric element columns from a series connection to a parallel connection or from a parallel connection to a series connection. The thermoelectric element columns are connected selectively in parallel or in series to improve rapid charging and life-span properties.

Abstract: A secondary battery according to exemplary embodiments of the present invention includes an electrode assembly including a plurality of electrodes and a separation membrane disposed between the electrodes, a case configured to receive the electrode assembly, electrode tabs which are connected with the electrodes and protrude to an outside of the case, and a thermoelectric unit configured to at least partially cover the electrode tab. The thermoelectric unit includes an insulator, and a thermoelectric region which includes thermoelectric elements included in the insulator or attached to the insulator, and is disposed to be overlapped with the electrode tab in a planar direction.

Abstract: Embodiments provide a secondary battery pouch including a sealing portion formed at an outside of the secondary battery pouch constituting a battery cell and configured to seal an inner space of the secondary battery pouch. The sealing portion includes: a first fusion portion having a smallest thickness in the sealing portion; and a second fusion portion having a largest thickness in the sealing portion. The first fusion portion and the second fusion portion are continuously formed at least one time alternately in a direction from an innermost side of the sealing portion in contact with the inner space of the secondary battery pouch to an outer side of the sealing portion.