A battery includes a case and a cell. The case is provided with a pressure relief groove; the cell is arranged within the case and includes a positive electrode plate, a negative electrode plate, and a separator located between the positive and negative electrode plates; the negative electrode…
An explosion-proof valve for a power battery includes a main valve body which has at least one gas outlet, a plurality of gas inlets, and a plurality of valve opening units that are respectively disposed in the plurality of gas inlets. At least two of the plurality of gas inlets are each in…
Disclosed herein are a case for secondary battery, a secondary battery including the case, and a method for manufacturing the case for the secondary battery. According to the present disclosure, a gas discharge device can be formed in the case for a secondary battery. The case may include a recess…
Disclosed is a pressure activation apparatus with a degassing unit, in particular, a pressure activation apparatus with a degassing unit, in which gas generated in a pressure activation process for a plurality of pouch-type battery cells respectively mounted to a plurality of pressure units is…
A battery cell, a battery and an electrical device, and relates to the technical field of batteries. The battery cell includes a shell and a pressure relief component; the shell includes a first wall portion; the pressure relief component is arranged on the first wall portion, a first weak portion…
A battery cell includes a shell and a pressure relief component, the shell includes a first wall portion, the pressure relief component is disposed on the first wall portion, the pressure relief component includes a first groove and a second groove, the first groove and at least one second groove…
A battery cell, a battery, and an electric device are disclosed. The battery cell includes a housing, a pressure relief mechanism, and a reinforcement member. The housing has a first wall portion, and the first wall portion is provided with a first groove. The pressure relief mechanism is disposed…
A battery module can include a plurality of stacked battery cells, an inner venting sheet that is disposed at a side of the battery cells, the inner venting sheet including an inner notch part having a thickness smaller than a thickness of a peripheral area or having a cut shape in an area facing…
A battery pack includes a plurality of batteries housed in a case. Each of the plurality of batteries includes a safety valve that opens in response to an increase in an internal pressure of the battery to exhaust gas inside the battery. The plurality of batteries are immersed in a cooling liquid…
The present disclosure relates to a battery energy storage container. The energy storage container has a cylindrical housing and a pair of end caps disposed on opposite ends of the cylindrical housing. A diaphragm is positioned between each end cap selected from the pair of end caps and the…
A ducting system for a battery module includes one or more ducts defining a flow passage. The one or more ducts are in fluid communication with a vent portion of the battery module. A lower wall of one or more ducts defines a number of cell openings that are isolated from each other. Each cell…
A battery cell, a battery, and an electrical device are disclosed. The battery cell includes a shell with a pressure relief component on a wall portion. The pressure relief component has a first groove that defines a pressure relief region designed to split when internal pressure rises. A second…
A battery pack according to an embodiment of the present disclosure may include: a plurality of battery cells; a pack case configured to store the plurality of battery cells and having a venting portion formed thereon; and a sealing member installed to the pack case to seal the pack case and…
An electrochemical apparatus including an accommodating portion and an electrode assembly accommodated within the accommodating portion. The electrochemical apparatus further includes a metal strip, a sealing member, and a functional layer. The metal strip includes a first portion, a second…
The present disclosure provides a battery cell including a can including a side wall extended in an axial direction, and an open end portion at an end portion of the side wall in the axial direction; a cap that covers the open end portion; an electrode assembly housed in the can; and a current…
The present disclosure relates to a battery assembly, and a battery assembly according to one embodiment comprises: a battery cell stack comprising a plurality of battery cells; a receiving body configured to retain the battery cell stack, the receiving body comprising a receiving space having at…
A battery pack includes a plurality of battery modules; a vent frame disposed along the edges of the plurality of battery modules; and a housing accommodating the plurality of battery modules and the vent frame, wherein the vent frame includes a pair of vertical beams formed parallel to a first…
The present disclosure is directed to a battery pack. The battery pack includes a housing with a base plate and side walls coupled to the base plate, a plurality of battery cell assemblies on an upper surface of the base plate, and a plurality of exhaust devices coupled to the base plate.
Aspects of the present invention relate to a battery enclosure gas management system. The battery enclosure gas management system comprises a gas displacer arranged to drive venting of gas that surrounds at least one of one or more battery cells in a battery enclosure. The venting is to outside of…
An electrochemical device comprises device comprising at least one pouch cell and a safety arrangement is described. The safety arrangement comprises a holding structure and at least one pouch piercing element. The at least one pouch piercing element is held adjacent to a corresponding pouch cell…
A battery cell includes a housing, a bare cell, and a pressure relief structure. The housing internally forms an accommodating cavity. The bare cell is accommodated in the accommodating cavity. The pressure relief structure is mounted on a first wall surface of the housing and configured to actuate…
A battery cell, a battery, and an electrical apparatus are disclosed. The battery cell includes a shell having a first wall and a second wall joined together. The first wall is formed with a groove that ruptures during pressure relief to release internal pressure. The second wall is located…
Disclosed is a secondary battery capable of controlling a gas discharge direction. Gas discharged to outside of the battery through a cap up may be guided in a desired direction, whereby it is possible to attach a sensor to a desired position to avoid gas discharge. In addition, it is possible to…
A secondary battery including an electrode assembly including a first electrode, a separator, and a second electrode, a case accommodating the electrode assembly, and a safety vent at a side of the case, the safety vent including a plurality of vent plates, and each of the plurality of vent plates…
A battery module includes a housing; at least one battery cell in the housing; an insulating member covering a surface of a battery cell of the at least one battery cell on which a vent portion is located; a rigid member on an outer surface of the insulating member and in which a through hole…
A battery cell, a battery, and an electrical apparatus. The battery cell comprises an electrode assembly, a housing, and a pressure relief part. The electrode assembly comprises a positive pole piece and a negative pole piece. The positive pole piece and the negative pole piece are stacked to form…
A battery cell, a method for manufacturing a battery cell, a battery system, and an electric vehicle are disclosed. A battery cell includes a battery cell housing and a protective cover. The battery cell housing includes a pair of electrode terminals and a venting valve located on a terminal side…
A battery pack venting system includes a cell stack including battery cells disposed along a cell stack axis, and an enclosure assembly providing an interior that houses the cell stack. The enclosure assembly has a first enclosure wall and a plurality of second enclosure walls. The system further…
Provided are a secondary battery and a method of fabricating the same. The secondary battery and the method of fabricating the same are intended to prevent ignition of the secondary battery. The secondary battery may include an electrode assembly, a can accommodating the electrode assembly, a cap…
The present disclosure provides a battery explosion-proof structure and a battery, involving the technical field of batteries. The battery explosion-proof structure includes a housing body, a current collector, a sealing member, and an explosion-proof sheet. The housing body is provided with an…