Abstract: The present disclosure provides a battery module, which comprises: a plurality of mono-batteries, each mono-battery has electrode terminals which are opposite in electrical polarity; and an electrical connection sheet connecting at least two corresponding electrode terminals, the electrical connection sheet is formed with at least one fusing portion, each fusing portion is positioned between two adjacent electrode terminals. The battery module further comprises: an insulating sheet supported on the fusing portion which is positioned between the two adjacent electrode terminals connected by the electrical connection sheet, when the fusing portion supporting the insulating sheet is fused and a fracturing slit is formed, the insulating sheet drops into the fracturing slit to electrically isolate two facing sides of the electrical connection sheet which are at the fracturing slit. Therefore it avoids the phenomenon of an electrical arc occurring at the fracturing slit and makes the electrical arc extinct.

Abstract: This application provides a secondary battery including an electrode assembly, a first terminal, a second terminal, a top cover plate and a contacting plate attached to the first terminal, the electrode assembly includes a first electrode, a second electrode and a separator between the first electrode and the second electrode, the first terminal is electrically connected with the first electrode, the second terminal is electrically connected with the second electrode, the top cover plate is insulated from the first terminal and is electrically connected with the second terminal, when internal pressure of the secondary battery exceeds reference pressure, the contacting plate deforms under the internal pressure and contacts the top cover plate, so as to form an electrical connecting path through the first electrode, the first terminal, the contacting plate, the top cover plate, the second terminal and the second electrode.

Abstract: The present invention further provides a nickel-zinc battery system used for rechargeable electrical tools. The present invention further provides a method for manufacturing a battery set of the nickel-zinc battery system. A diode of the nickel-zinc battery set manufactured by the method can be hidden in a receiving slot.

Abstract: There is provided an assembled battery including a plurality of single cells and a plurality of bus bars connecting the plurality of single cells in series. The plurality of single cells is arranged such that a pair of flat side surfaces faces each other. The single cells each include a battery case, a positive electrode sheet, a negative electrode sheet, a positive electrode terminal, a negative electrode terminal, an electrical resistor disposed in a conductive path between the positive electrode sheet and the positive electrode terminal, and a pressure operative type current interruption mechanism disposed in a conductive path between the negative electrode sheet and the negative electrode terminal.

Abstract: A method of fabricating a negative electrode for an electrochemical cell may comprise: providing an electrically conductive substrate; depositing a metal layer on the substrate; anodizing the metal layer to form a porous layer on the substrate; depositing a layer of ion conducting material on the porous layer, the layer extending at least partially into pores of the porous layer; densifying the layer of ion conducting material; depositing a layer of alkali metal on the densified layer of ion conducting material; attaching a temporary electrode to the layer of alkali metal and passing a current between the temporary electrode and the substrate to drive alkali metal through the densified layer of ion conducting material to the surface of the substrate, forming an alkali metal reservoir at the surface of the substrate. Furthermore, an electrically conductive mesh may be used in place of the porous layer on the substrate.

Abstract: Disclosed is a battery module including a battery cell stack including a structure in which a plurality of battery cells connected to each other in series and/or in parallel is stacked and each of the battery cells is stood on one side thereof, voltage sensing members provided with connecting terminals electrically connected to electrode terminal connection parts of the battery cells for detecting voltages of the battery cells, an upper case covering the end of one side of the battery cell stack and portions of upper and lower ends of the battery cell stack, the upper case being provided with mounting parts, into which the voltage sensing members are inserted and mounted, and a lower case coupled to the upper case while covering the end of the other side of the battery cell stack and portions of the upper and lower ends of the battery cell stack.

Abstract: A method for transferring a minimum and/or a maximum value of a battery system parameter from a quantity of values of said battery system parameter in a battery system comprising a plurality of battery cells, wherein the minimum value of the battery system parameter is transferred via a first data line and/or the maximum value of the battery system parameter is transferred via a second data line. A periodic clock signal having a permanent period duration is generated. To transfer the minimum value of the battery system parameter for each value of the battery system parameter phase-synchronously to the clock signal, a first signal is generated and given to the first data line, and/or to transfer the maximum value of the battery system parameter for each value of the battery system parameter phase-synchronously to the clock signal, a second signal is generated and given to the second data line.

Abstract: A method of estimating a state of charge of a lithium ion battery, which uses a lithium phosphate compound having an olivine-type crystal structure for a positive electrode and uses an active material exhibiting no potential fluctuation due to an insertion/desorption reaction of lithium for a negative electrode, based on a voltage change rate. The method includes: storing a map representing a correspondence relationship between the voltage change rate and the state of charge at a plurality of charging/discharging rates; obtaining a candidate for a present state of charge from an actually measured voltage change rate, by referring to the map; and obtaining the present state of charge through a comparison between the candidate for the state of charge obtained during the charging and the candidate for the state of charge obtained during the discharging.

Abstract: An electrochemical cell system and a process for operating the same, the system having at least two fuel electrodes for receiving electrodeposited metal fuel; at least one oxidant electrode spaced apart from the fuel electrode; at least one charging electrode; an ionically conductive medium communicating the electrodes of the electrochemical cell system for conducting ions to support electrochemical reactions at the fuel, oxidant, and charging electrodes; and, one or more controllers configured to operate the cell system in discharging and charging modes and monitor a state of charge for each fuel electrode. The controllers may assign each fuel electrode in a discharging unit having a state-of-charge meeting a predetermined depletion criteria from the discharging unit to the charging unit, and each fuel electrode in the charging unit having a state-of-charge meeting a predetermined loading criteria from the charging unit to the discharging unit.

Abstract: The present disclosure discloses a pack case suitable for preventing vibration or deviation of a battery module on a case during an assembly operation, and a battery pack including the same. The pack case according to the present disclosure includes an align unit and a bus bar disposed at an edge on an inner circumferential surface, and a main case having a connection terminal contacting the bus bar on an outer circumferential surface, and the align unit and the bus bar contact a battery module at a periphery of the battery module seated on the inner circumferential surface of the main case.

Abstract: Disclosed is a battery pack, which includes at least one battery module, a pack case configured to package the at least one battery module, a BMS (Battery Management System) unit provided in the pack case to control the at least one battery module, and a memory slot unit electrically connected to the BMS unit and configured to insert a memory unit therein for firmware update of the battery pack.

Abstract: A battery cell for a battery of a motor vehicle with a battery cell housing in which is accommodated a galvanic element. The battery cell has two electric connections by means of which the battery cell can be electrically connected to at least one other battery cell of the battery. At least one switching element can be transferred by means of a control unit into a switching state in which an electrically conductive connection between an arrester of the galvanic element and of at least one of the electric connections is interrupted. In addition, the invention relates to a battery with a plurality of such battery cells as well as to a motor vehicle with a battery.

Abstract: A non-aqueous electrolyte secondary battery includes a pressure-sensitive current shut-off mechanism, wherein a positive electrode core body exposed portion is disposed at one end portion of a flat rolled electrode assembly, a negative electrode core body exposed portion is disposed at the other end portion, lithium carbonate is contained in a positive electrode mix layer, and a protective layer is disposed along the border with the positive electrode mix layer at the position opposite to a separator on the positive electrode core body exposed portion.

Abstract: Provided is a battery pack having a plurality of single cells connected to one another, the battery pack being capable of preventing a temperature elevation caused by a short-circuit current that is generated when a sharp conductive foreign matter penetrates each of the single cells. The battery pack disclosed herein is a battery pack that has single cells arranged adjacent to each other, these adjacent single cells being electrically connected in series. In this battery pack, among a plurality of positive and negative electrode sheets configuring layered electrode bodies of the respective single cells, a negative electrode sheet is disposed on the lowermost stream side in the arrangement direction, and this negative electrode sheet disposed on the lowermost stream side is configured to have a lower electric resistance than the other negative electrode sheets configuring the layered electrode bodies and to break at a temperature lower than the temperatures at which the other negative electrode sheets break.

Abstract: A battery sensor assembly utilizing a housing that resembles a battery, such that the battery sensor assembly may be disposed in a battery pack with adjacent batteries and electrically coupled to the adjacent batteries. The battery sensor assembly is operable for monitoring state of charge, voltage, state of health, temperature, and electrical current of the adjacent batteries in real time and measurements may be relayed to a central battery management system via a wireless or wired link.

Abstract: A power adapter includes an universal serial bus (USB) interface, a control unit and a charging circuit. The universal serial bus (USB) interface connected to the electronic device, to receive level signals from the electronic device. The control unit electronically connected to the USB interface, to output a control signal according to the level signals received by the USB interface. The charging circuit electronically connected to the control unit and receiving the external power signal, to determine whether or not to output the external power signal to the electronic device according to the control signal outputted by the control unit.

Abstract: A secondary battery includes an electrode body including a positive-electrode sheet and a negative-electrode sheet, an exterior body having an opening and accommodating the electrode body, a sealing body sealing the opening, a terminal electrically connected to the positive-electrode sheet and extending through a through-hole formed in the sealing body, and a conductive member connected to the terminal outside the sealing body. The conductive member includes a fuse. The fuse is covered by a cover. An insulating member is disposed between the conductive member including the fuse and the sealing body.

Abstract: A cap structure of a power battery includes first and second electrode components, a cap plate attached to the first and second electrode components, and a turnable plate connected to the second electrode component. The first electrode component is electrically isolated from the cap plate and includes a first terminal and a first connecting block. The first connecting block is located above the cap plate and includes a terminal connecting portion, a fusing portion, and a turnable plate connecting portion. In case that an internal pressure of the power battery exceeds a reference pressure, the turnable plate is turned over and in contact with the turnable plate connecting portion, such that the first terminal is electrically connected to the second electrode component.

Abstract: Battery block includes the following elements: a plurality of batteries each of which includes safety valve; positive electrode-side current collecting part for collecting current by connecting the positive electrode sides of batteries; and negative electrode-side current collecting part for collecting current by connecting the negative electrode sides of the batteries. In positive electrode-side current collecting part and negative electrode-side current collecting part, the part that includes safety valves is set to one side current collecting part. On the other side current collecting part opposite the one side current collecting part, fuse that fuses at a predetermined temperature is disposed on each of batteries.

Abstract: A traction battery assembly for a vehicle is provided. The traction battery assembly may include a battery cell array having a plurality of battery cells. A thermal plate may be positioned beneath the battery cells and be configured for thermal communication therewith. The thermal plate may define a plurality of channel configurations within the thermal plate. Each of the channel configurations may correspond to one of the battery cells and include an inlet and outlet on a same side portion of the thermal plate. An inlet plenum may be in communication with the inlets and an outlet plenum may be in communication with the outlets. The channel configurations and plenums may be arranged such that fluid exiting the inlet plenum enters the channel configurations via the outlets and fluid exiting the outlets enters the outlet plenum and not into the inlet of another one of the channel configurations.

Abstract: A sealed-type battery includes an exterior body, a collector terminal, a hollow rivet defining a hollow section, and a reverse plate arranged between the collector terminal and the hollow rivet. The collector terminal includes: a projected section projected; a peripheral edge section provided; and a notch section provided in the peripheral edge section in a manner to surround the projected section and formed in a manner to reduce thickness of the collector terminal. In a projected direction of the projected section, the projected section is thicker than the peripheral edge section. A fitting section, to which the projected section is fitted, is provided in the reverse plate. The sealed-type battery includes a welded section that has a top surface opposing the hollow rivet and that joins the collector terminal and the reverse plate at a position between the projected section and the fitting section.

Abstract: A battery module includes a battery pack, a circuit to control charge and discharge operations of the battery pack, a connector through which current is output from the battery pack, a fuse block to selectively interrupt current of the battery pack, a frame to support the circuit, the connector, and the fuse block; and a coupling block accommodating the circuit at a first side and supporting the connector and the fuse block at a second side at upward positions relative to the frame.

Abstract: A charging device for charging a motor vehicle includes an energy supply unit which is arranged externally in relation to the motor vehicle, and which is designed to provide electrical current for a solid-state gas battery of the motor vehicle. In addition, the charging device includes a gas supply unit which is arranged externally in relation to the motor vehicle and which is designed to provide gas for the solid-state gas battery of the motor vehicle. Furthermore, the charging device has at least one supply connection by which the energy supply unit can be coupled to the motor vehicle for the purposes of a charging process for supplying electrical current for the solid-state gas battery, and by which the gas supply unit can be coupled to the motor vehicle for the purposes of the charging process for supplying gas for the solid-state gas battery.

Abstract: A battery circuit includes a battery cell, monitoring circuitry configured to determine one or more parameters of the battery cell, a pouch enclosing the battery cell and the monitoring circuitry in a sealed, internal cavity, the pouch being configured to inhibit ingress of external fluid to the sealed, internal cavity, and an electrical connector exterior the pouch and electrically connected to the battery cell and the monitoring circuitry via one or more paths extending through the pouch and into the internal cavity.

Abstract: A battery pack includes: a battery having a main surface; and a resin layer capable of being integrated with an armor member armoring the battery so that at least a part of the main surface of the battery is exposed and covering the main surface of the battery, wherein the resin layer is formed by curing a reaction curable resin having a viscosity of not less than 80 mPa·second to less than 1000 mPa·second and a thickness of the resin layer on the main surface of the battery ranges from 0.05 mm to smaller than 0.4 mm.

Abstract: A secondary battery includes a scaling body (25), a rivet member (30), a gasket (27) that contacts the rivet member (30) and is fixed between the sealing body (25) and the rivet member (30), a holder member (60), a reversing plate (40) that deforms when an internal pressure of the exterior body (10) rises, and a heat accumulation portion (70) that contacts the rivet member (30) and has a higher thermal conductivity than the rivet member (30). An outer peripheral edge (42) of the reversing plate (40) is connected by welding to the peripheral edge portion (36) of the rivet member (30), and the heat accumulation portion (70) is sandwiched between the opposing portion (33) of the rivet member (30) and the extending portion (61) of the holder member (60).

Abstract: A current interruption device includes a first conductive member, a second conductive member, a first deformable member, a second deformable member, and a first seal member. The second conductive member is disposed at a position opposed to the first conductive member. A center portion of the first deformable member is fixed to the second conductive member. The second deformable member is disposed on a side opposite to the first deformable member relative to the second conductive member. The first seal member is disposed between the first conductive member and the second conductive member. A second seal member is disposed between the first conductive member and the casing. A gas permeability between the casing and the first conductive member is equal to or less than a gas permeability between the first conductive member and the second conductive member.

Abstract: A power supply protective device, when obtaining an open voltage when a second switch is brought into a closed state and a first switch is brought into an open state during discharging of a power supply, and obtaining a close voltage when the second switch is brought into the closed state and the first switch is brought into the closed state during discharging of the power supply, diagnoses the first switch as having a failure or not on the basis of the open voltage and the close voltage. When executing first a close instruction to the first switch and the second switch, if a voltage difference is less than a first threshold voltage, the first switch is determined to have no open failure, and/or when not less than a second threshold voltage, the second switch is determined to have no open failure.

Abstract: A method of operating a redox flow battery string includes providing a plurality of redox flow batteries, each redox flow battery in electrical communication with at least one other redox flow battery, and each redox flow battery comprising an anolyte storage tank including a quantity of anolyte, a catholyte storage tank including a quantity of catholyte, and an electrochemical cell in fluid communication with the anolyte and catholyte storage tanks; obtaining an open circuit voltage value for each redox flow battery in the string; identifying a predetermined open circuit voltage value in the string; and adjusting the open circuit voltage value for each redox flow battery to correspond to the predetermined open circuit voltage value. A redox flow battery string system includes a plurality of redox flow batteries each redox flow battery in electrical communication with at least one other redox flow battery having an open circuit voltage value.

Abstract: A battery pack has a sealed case. Battery modules are housed in the sealed case. Each battery module contains multiple battery cells. The sealed case has a main body having an opening. The opening in the main body is closed by a rectangular plate-shaped lid member. The lid member has a first releasing portion and a second releasing portion, which are opened when the internal pressure of the sealed case increases. The second releasing portion is arranged below the first releasing portion in the vertical direction.

Abstract: A rechargeable battery includes an electrode assembly in a case, a terminal which passes through and protrudes from a cap plate, and a current collector plate in the case. The current collector plate electrically connects the electrode assembly and the terminal portion. The current collector plate has a fuse area which includes a fuse hole having a substantially elongated shape with round sides oriented in a widthwise direction of the current collector plate.

Abstract: An electrode body including a positive electrode plate and a negative electrode plate is accommodated in a prismatic outer package having an opening. The opening of the prismatic outer package is sealed with a sealing plate. The electrode body includes positive electrode tab portions stacked at an end portion on the sealing plate side. The stacked positive electrode tab portions are divided into two forming a first tab group and a second tab group. A resin member serving as a holding member holding a metal member is fixed to the sealing plate. The metal member is disposed between the first tab group and the second tab group. Lead portions of a positive electrode collector is connected to the first tab group and the second tab group at a surface positioned opposite to a surface that opposes the metal member.

Abstract: An energy storage system may include battery packs, such that one terminal of the battery packs is electrically coupled to a resistor representative of an isolation resistance of the battery system. The system may include a semiconductor relay switch, a plurality of resistors configured to electrically couple to the battery packs via the semiconductor relay switch, a gain field-effect transistor (FET) configured to electrically short at least one resistor of the plurality of resistors, and a control system. The control system may send a first command to the semiconductor switch to close, acquire a first voltage waveform, send a second command to the semiconductor switch to open, send a third command to the gain FET to close, send a fourth command to the semiconductor switch to close, acquire a second voltage waveform, and determine the isolation resistance based on the first voltage waveform and the second voltage waveform.

Abstract: According to one embodiment of the present invention, the method for controlling the pump speed of a redox flow battery for transferring an electrolyte stored in an electrolyte tank to a cell stack comprises the steps of: measuring the input power and/or the output power of the redox flow battery; measuring the charging power and/or the discharging power of the redox flow battery; calculating the power loss of the redox flow battery by using the difference between the input power and the charging power, or the difference between the output power and the discharging power; and adjusting the pump speed according to the power loss.

Abstract: During joining, while the inversion plate is inserted in a recessed portion of the connecting member and an opening of the recessed portion faces upward in a vertical direction, a boundary at which an inner wall surface of the recessed portion faces an outer side surface of the inversion plate is continuously radiated with a laser beam from above by one round or more. The inner wall surface in a circular shape of the connecting member is an inclined surface inclined further apart from the outer side surface of the inversion plate as the inclined surface is located closer to the laser beam radiation side, and the inclined surface satisfies w/(h·D)?0.002 (w: a length of the inclined surface in a radial direction, h: a height of the inclined surface, D: a diameter of the inclined surface on an opposite side to the laser beam radiation side).

Abstract: A battery pack includes a battery housing and electrochemical cells disposed in the battery housing in a stacked configuration. Elastic bladders are disposed between adjacent cells of a cell stack. The elastic bladders are configured to serve as a compression spring that provide a predetermined compression force to each cell while accommodating cell growth during use. The elastic bladders may include surface features such as strategically shaped and/or located protrusions or restrained regions that are configured to permit compliance and can be tuned to address the requirements of a specific application and permit application of varying stiffness characteristics across a surface of a cell.

Abstract: Disclosed herein are liquid-cooled battery systems configured to prevent cell-to-cell thermal propagation. In one embodiment, a system includes a section configured to generate and store electrical energy through heat-producing electro-chemical reactions. A cooling system may be configured to generate a flow of a liquid coolant through the battery system to remove heat produced by the battery. Cooling fins may be configured to receive the flow of the liquid coolant through a primary coolant channel and to transfer heat from the battery to the liquid coolant. The cooling fins may also include a secondary coolant channel configured to be at least partially filled with a melting material configured to obstruct the liquid coolant from exiting through the aperture at temperatures below a temperature threshold. When the melting material melts, it permits some of the liquid coolant to exit the cooling fin and wet and cool the adjacent battery section.

Abstract: A secondary battery includes: an electrode assembly, a case accommodating the electrode assembly, a cap plate sealing the case and including an inversion plate, an insulation plate including a short-circuit hole corresponding to the inversion plate and a first air hole spaced apart from the short-circuit hole and formed along a top surface of the cap plate, the insulation plate being coupled to the top surface of the cap plate, and a terminal plate coupled to a top surface of the insulation plate and electrically coupled to the electrode assembly. The first air hole is a hole coupling from a top portion of the inversion plate to the outside of the insulation plate.

Abstract: An electrolyte, an electrolyte solvent, and an electrolyte additive, in particular for a lithium cell, include at least one ether. The at least one ether has at least one of the general chemical formula: R11R12R13C—(CR14R15)x1-[O—(CR31R32)a-(CR33R34)b]c-O—(CR24R25)x2-CR21R22R23 and of the general chemical formula: R41R42R43C—(CR44R45)y1-O—(CR54R55)y2-CR51R52R53.

Abstract: A secondary battery may include a fuse formed in an electrode terminal. In exemplary embodiments, the secondary battery may include an electrode assembly including a first electrode plate, a second electrode plate and a separator, a current collector plate electrically connected to the electrode assembly, a case accommodating the electrode assembly, the current collector plate and an electrolyte, and an electrode terminal electrically connected to the current collector plate and protruded to an outside of the case, wherein the electrode terminal portion includes a protrusion part electrically connected to the current collector plate in a normal condition and selectively electrically disconnectable therefrom.

Abstract: A swelling current interrupt device (CID) includes: a battery unit connection terminal configured to be fixed to a pouch; and a lead tab connection terminal configured to be fixed to the pouch and electrically connected to the battery unit connection terminal, wherein any one of the battery unit connection terminal and the lead tab connection terminal is broken by an expansion force of the pouch which is generated when the pouch expands to interrupt the electrical connection between the battery unit connection terminal and the lead tab connection terminal.

Abstract: This disclosure relates to a battery and a method for its manufacture. An example method includes forming an anode comprising silicon monoxide and a forming a cathode comprising lithium cobalt oxide. The method also includes arranging the anode, the cathode, and a separator in a layered arrangement. The method further includes winding the layered arrangement to form a wound arrangement, compressing the wound arrangement, and packing it into a pouch. The method yet further includes soaking the wound arrangement in an electrolyte for a predetermined time and at a predetermined temperature. The electrolyte includes a lithium hexafluorophosphate salt dissolved in a solvent including ethylene carbonate and diethylene carbonate in about a 1:2 volume ratio. The additive includes fluoroethylene carbonate in an 8-12% weight ratio.

Abstract: Provided are interconnects for interconnecting a set of battery cells, assemblies comprising these interconnects, methods of forming such interconnects, and methods of forming such assemblies. An interconnect includes a conductor comprising two portions electrically isolated from each other. At least one portion may include two contacts for connecting to battery cells and a fuse forming an electrical connection between these two contacts. The interconnect may also include an insulator adhered to the conductor and mechanically supporting the two portions of the conductor. The insulator may include an opening such that the fuse overlaps with this opening, and the opening does not interfere with operation of the fuse. In some embodiments, the fuse may not directly interface with any other structures. Furthermore, the interconnect may include a temporary substrate adhered to the insulator such that the insulator is disposed between the temporary substrate and the conductor.

Abstract: Disclosed herein is a battery cell assembly including a plurality of battery cells stacked while being electrically connected to each other, wherein one or more of the battery cells are mounted in each cell housing member in a state in which opposite sides of the battery cells are surrounded by each cell housing member excluding electrode terminals of the battery cells, an expansion opening part, through which a portion of a main body of each of the battery cells is exposed outward when the battery cells expand, is formed at one surface or opposite surfaces of each of the at least two cell housing members and the battery cells are stacked such that the at least two expansion opening parts face each other.

Abstract: A spring-loaded busbar has a first portion divided from a second portion by a first pair of notches and a third portion divided from the second portion by a second pair of notches. The second portion is bent relative to the first portion and the third portion is bent relative to the second portion. The busbar is configured to deform elastically when pressed against an electrical cell to ensure proper contact between the busbar and the cell before the busbar is welded to the cell.

Abstract: An electrically-powered vehicle includes a high voltage battery, a charger, and a battery case. The high voltage battery stores electric power for travelling. The charger outputs charge current to the high voltage battery. The battery case accommodates the high voltage battery. The battery case includes a low stiffness material member that covers one side of the high voltage battery in a horizontal direction and that is formed of a material having stiffness lower than stiffness of a portion that covers the other side in the horizontal direction. The low stiffness material member and the charger are fastened to each other at different locations in the horizontal direction.

Abstract: The present application provides a top cover of a power battery, including a top cover plate, a first electrode unit and a second electrode unit, the top cover plate is provided with a deformable plate connecting hole and an insulation piece accommodating portion, the first electrode unit includes a deformable plate, a conductive plate and a first insulation piece, the deformable plate seals the deformable plate connecting hole, the conductive plate is located underneath the deformable plate, the first insulation piece includes a top cover plate connecting portion and a conductive plate connecting portion, the top cover plate connecting portion extends into the insulation piece accommodating portion and is fixed thereof, the conductive plate is insulated and fixed with the top cover plate through the conductive plate connecting portion. The present application further provides a power battery, including the top cover of the power battery.

Abstract: An energy storage system may include one or more battery packs, wherein one terminal of the one or more battery packs is electrically coupled to a resistor representative of an isolation resistance of the energy storage system, a semiconductor relay switch, a plurality of resistors configured to electrically couple to the one or more battery packs via the semiconductor relay switch, a gain field-effect transistor (FET) configured to electrically short at least one resistor of the plurality of resistors, one or more capacitors electrically couples to a system ground of a vehicle and the one or more battery packs, and a control system configured to control the semiconductor switch and the gain FET.

Abstract: A secondary battery is disclosed. In one aspect, the secondary battery includes an electrode assembly, a case having an opening and housing the electrode assembly and a cap assembly sealing the opening of the case. The cap assembly includes an electrode terminal electrically connected to the electrode assembly. The cap assembly also includes a cap plate including a first terminal hole into which the electrode terminal is inserted and a coupling groove extending from a lateral surface of the cap plate past the first terminal hole. The coupling groove has an open side facing the electrode assembly. The cap assembly further includes an insulation member connected to the cap plate via the inside of the coupling groove and configured to be slidably engaged with the coupling groove.

Abstract: A secondary battery includes a case; an electrode assembly accommodated in the case, and including a first electrode plate, a second electrode plate, and a separator between the first and second electrode plates; a first terminal portion electrically connected to the electrode assembly; and a cap plate configured to cover an opening of the case, and the first terminal portion includes a first electrode terminal passing through the cap plate to protrude upward from a first position of the cap plate, and a first current collector including a first end connected to the first electrode terminal, and a second end connected to the first electrode plate, the first current collector including a plurality of notches.