Abstract: There is disclosed an electrical device and a method in which a battery is warmed up when operating from a sub-zero temperature. The electrical device may include a battery; an electrical storage element; and a battery management system including a controller in electrical communication with the battery and the electrical storage element. The controller can be configured to execute a program stored in the controller to shuttle energy between the battery and the electrical storage element until a power capability threshold of the battery has been reached, Shuttling the energy raises a temperature of the battery to meet power demand.

Abstract: The present disclosure provides a battery detection device. The detection circuit is disposed on the battery and produces an impedance value variation quantity according to a deformation of the battery. The detection circuit includes four connection nodes. The first connection node and the third connection node are connected with the battery. A voltage variation quantity is produced between the second connection node and the fourth connection node according to the impedance value variation quantity. The protection circuit is connected with the second connection node and the fourth connection node. The protection circuit is in an ON state when the voltage variation quantity is greater than or equal to a cut-off voltage. The protection circuit is in an OFF state when the voltage variation quantity is less than the cut-off voltage, so that an operation state of the battery is changed accordingly.

Abstract: A fuel cell system column includes a first terminal plate connected to a first electrical output of the column, a second terminal plate connected to a second electrical output of the column, at least one first fuel cell stack located in a middle portion of the column between the first terminal plate and the second terminal plate, and at least one electrical connection which is electrically connected to the middle portion of the column and which is configured to provide a more uniform fuel utilization across the first column.

Abstract: A busbar module includes: a circuit body having a flexible circuit board; busbars; and a holder. The circuit body has: conductor layers and protective layers to form a multiple-layered structure of wiring patterns; a band-shaped main strip to be located to extend in a stacking direction of cells; and a band-shaped branch strip branched from the main strip. The branch strip has: a bent portion extending in the stacking direction and having a bent shape around an axis crossing the stacking direction; and a connection portion disposed closer to an end of the branch strip than the bent portion and connected to the corresponding busbar. The bent portion has a thin-layer portion having a shape formed by removing, from the flexible circuit board, a part of the protective layers corresponding to a part of the conductor layers without being used as the wiring pattern in the branch strip.

Abstract: An electrode body of a secondary battery described herein includes: a core portion where electrode mixture layers of a plurality of electrode sheets are laminated; terminal connecting portions where respective current collector foil exposed portions are laminated, and a mixture layer non-facing portion where the electrode mixture layer faces the current collector foil exposed portion, the mixture layer non-facing portion being formed in a boundary between the terminal connecting portion and the core portion. In the secondary battery described herein, a short-circuit promoting portion having a predetermined depth (d) is formed in a separator provided between the electrode sheets in the mixture layer non-facing portion.

Abstract: The disclosure provides an electric energy storage device which includes four energy units with a substantially same voltage value. Each energy unit is provided with a positive electrode and a negative electrode. The electric energy storage device comprises a socket with eight independently arranged electrode terminals that are connected with the four energy units. The disclosure also provides an electric tool system using the electric energy storage device. The electric tool is provided with plugs that may be connected with the four energy units in different states, allowing the electric energy storage device to output multiple voltages.

Abstract: A redox flow battery system includes an anolyte having a first ionic species in solution; a catholyte having a second ionic species in solution, where the redox flow battery system is configured to reduce the first ionic species in the anolyte and oxidize the second ionic species in the catholyte during charging; a first electrode in contact with the anolyte, where the first electrode includes channels for collection of particles of reduced metallic impurities in the anolyte; a second electrode in contact with the catholyte; and a separator separating the anolyte from the catholyte. A method of reducing metallic impurities in an anolyte of a redox flow battery system includes reducing the metallic impurities in the anolyte; collecting particles of the reduced metallic impurities; and removing the collected particles using a cleaning solution.

Abstract: Systems and methods for operating a lithium-ion battery high-voltage distribution system architecture are disclosed. A battery pack includes: a plurality of lithium-ion battery cells; a disconnect mechanism operable in an operational position between a battery bus and the plurality of lithium-ion battery cells and a bypass position between the battery bus and a bus-power pass through; and a battery management system. The battery management system is configured to monitor battery pack performance; and responsive to detecting a triggering event in the battery pack performance, cause the disconnect mechanism to be in the bypass position.

Abstract: A battery, particularly for a motor vehicle, including at least two battery cells, wherein at least one circuit branch is connected to a respective positive pole and negative pole of the respective battery cell, which includes a heating unit, which can be connected in parallel to the respective battery cell by a switching element of the circuit branch; and a control device, which is configured to switch the switching elements of the respective circuit branch between an electrically conductive and an electrically blocking state in order to heat the battery cells, perform active balancing of the battery cells, and/or discharge the battery cells. The invention furthermore relates to a method for operating a battery.

Abstract: Disclosed herein is a system including a computer programmed to actuate a plurality of drones to first establish one or more electrical connections therebetween and then to provide a jump start to a vehicle.

Abstract: The present disclosure relates to the technical field of assembly of a battery pack, and particularly, to a battery pack. The battery pack includes a housing. A plurality of cells is arranged in interior of the housing. A structural adhesive is filled between a bottom of the housing and the plurality of cells, and the plurality of cells is adhered to the housing through the structural adhesive. In the battery pack provided in the present disclosure, the cells are arranged in the interior of the housing, and the housing is adhered to the cells through the structural adhesive. The structural adhesive can functions as fixing the cells, such that a frame structure of a module can be omitted, the number of components in the battery pack can be reduced, manufacture process can be reduced, assembling efficiency can be improved, and manufacturing cost can be reduced.

Abstract: A battery module includes an output electrode base and an end plate, and the output electrode base is inserted into and fitted to the end plate. A first limiting element is disposed on the output electrode base, a limiting plate is disposed on the end plate, and the first limiting element is fitted to the limiting plate. A stop hole is provided in one of the output electrode base and the end plate, and a second limiting element is disposed on the other. The second limiting element is accommodated in the stop hole; and the second limiting element is fitted to the stop hole. The first limiting element is fitted to the limiting plate and the second limiting element is fitted to the stop hole to limit the relative movement of the output electrode base and the end plate.

Abstract: A battery system has a battery cell including a can, and a ceramic substrate, including a patterned metallized surface, mounted to the can via a thermally conductive adhesive. The battery system also has a monolithic integrated circuit that measures and transmits data about the cell mounted to the patterned metallized surface such that the ceramic substrate and monolithic integrated circuit are electrically isolated from one another.

Abstract: Provided are a secondary battery and a battery pack including the secondary battery. A sealing plate has a positive electrode terminal attachment hole. A positive electrode terminal penetrates the positive electrode terminal attachment hole. An external conductive member is connected to a portion of the positive electrode terminal located on the battery outer side with respect to the sealing plate. The conduction path between a positive electrode plate and the positive electrode terminal is provided with a current interrupting mechanism. A first insulating member made of resin is disposed between the sealing plate and the positive electrode terminal. A second insulating member having higher thermal resistance than the first insulating member is disposed between the external conductive member and the sealing plate.

Abstract: The present disclosure provides a secondary battery which comprises: a cap plate provided with a first electrode terminal; an electrode assembly comprising a main body and a first electrode tab; a first connecting piece connected between the first electrode tab and the first electrode terminal. The first connecting piece includes a first electrode terminal connecting portion, a first electrode tab connecting portion and a first fusing portion. The secondary battery further comprises an insulating piece arranged on the first connecting piece to prevent direct physical contact between the first electrode tab and the first electrode terminal connecting portion by covering at least an edge of the first electrode terminal connecting portion.

Abstract: An energy storage module, particularly a solid state battery, an energy storage system, a vehicle and a method for measuring an electrical voltage on an energy storage module or on an energy storage system is based on two stacked and series-connected energy storage cells, each have an anode layer and a cathode layer. A contact, which is electrically connected to an anode layer located within the stack of a first energy storage cell and to a cathode layer located within the stack of a second energy storage cell, which is adjacent to the first energy storage cell, leads out of the stack such that at least one contact can be contacted from outside the stack.

Abstract: A battery charging control method and apparatus is disclosed. The battery charging control method includes inputting a preset magnitude of a current to a battery during a preset period of time, identifying a diffusion characteristic of a material in the battery, and determining whether to change the magnitude of the current to be input to the battery based on the identified diffusion characteristic of the material, in which the diffusion characteristic may be determined based on a distribution of the material in one or more of a cathode of the battery, an anode of the battery, and an electrolyte of the battery in response to the input of the current in the battery.

Abstract: A traction battery of a motor vehicle includes a battery housing, and a plurality of battery modules which are arranged in the battery housing. Each battery module has a module housing and battery cells which are accommodated in the respective module housing. At least one particle sensor and/or at least one gas sensor are/is arranged in the battery housing.

Abstract: A method for calculating a short-circuit current of a battery. includes: obtaining an integral state of charge and a current state of charge of the battery; calculating a first difference based on the integral state of charge and the current state of charge; calculating the short-circuit current of the battery based on the first difference; obtaining a first real state of charge and a second real state of charge; updating the first real state of charge and the second real state of charge based on a temperature-impedance table and the short-circuit current of the battery; calculating a second difference based on the updated first real state of charge and the updated second real state of charge; and updating the short-circuit current of the battery based on the second difference.

Abstract: A battery management device and a mobile terminal are disclosed. The battery management device includes: a charging unit; a battery unit including at least two batteries; a power supply management circuit; and an isolation unit configured to communicate one or more of the batteries with the power supply management circuit and block the backward flow of current between batteries. The charging unit, the battery unit, the isolation unit and the power supply management circuit are successively connected.

Abstract: A metal-air battery apparatus includes an inlet module and a main module each having a metal-air battery cell structure including a positive electrode and a negative electrode. The inlet module and the main module are electrically controlled and independently controlled from each other, and a channel through which a fluid such as air flows is defined between the inlet module and the main module. A temperature of the inlet module and a temperature of the main module are independently controlled by adjusting a discharge current density or by charging or a temperature adjustor.

Abstract: There is provided a battery system including parallel-connected bus bars each connecting the plurality of prismatic battery cells in parallel, and a safety mechanism configured to be capable of interrupting a current path of prismatic battery cells connected in parallel by the parallel-connected bus bars, where the sealing plate of one of the prismatic battery cells convexly deforms due to a rise in an internal pressure of this prismatic battery cell when an abnormality occurs, the sealing plate that has convexly deformed comes into contact with the parallel-connected bus bars to form external short circuitry between the electrode terminals that are positive and negative of one prismatic battery cell connected in parallel to the prismatic battery cell with the abnormality, and external short circuitry activates the safety mechanism that interrupts a current flowing into the prismatic battery cell with the abnormality.

Abstract: A bus bar module includes a circuit body, a bus bar, a holder, and a cover configured to be assembled to the holder to protect the circuit body and the holder. The circuit body includes a belt-like main line that extends in a first direction, a belt-like branch line that extends from the main line so as to branch from the main line, and a connection portion provided in a position closer to a distal end of the branch line than a folded portion the branch line. The cover is structured so as to be stretchable and shrinkable in the first direction in accordance with a stretching and a shrinking of the holder in the first direction.

Abstract: The disclosure relates to a cap assembly and a secondary battery. The cap assembly includes: a cap plate including a main portion and a convex portion, wherein the main portion includes a first surface, a second surface and an electrode lead-out hole; an electrode terminal including an extension portion that extends beyond a hole wall of the electrode lead-out hole and extends in a circumferential direction of the electrode lead-out hole to form a ring structure, and the extension portion is arranged on a side of the first surface away from the second surface; and a sealing ring at least partially disposed between the extension portion and the main portion, wherein the convex portion is disposed on the second surface and around the electrode lead-out hole and has a thickness of 0.01 mm to 2 mm, a top surface of the convex portion extends out of the second surface.

Abstract: A battery control device, which controls a battery, including cell blocks connected in series in which battery cells are connected in parallel, to execute voltage equalization of the cell blocks, includes a detection unit that detects voltage between positive and negative electrodes of each cell block, a voltage equalization circuit that includes a plurality of discharge units in which at least one discharge element and a switching element are connected in series, and a control unit that controls the switching elements to equalize the voltages of the cell blocks. The discharge units are connected between the positive and negative electrodes of the cell blocks, respectively. The control unit controls the switching elements at a predetermined timing to execute discharge of the cell blocks, and determines whether there is an abnormality in the cell blocks based on voltage differences between the cell blocks before and after the discharge.

Abstract: A modular enclosure for housing various computing devices is provided. The modular enclosure includes a platform and a housing module mounted on the base module. The housing module has lateral sides, a front side, a rear side and a roof defining an interior volume for receiving the various computing devices and fan cassettes. Each fan cassette is provided with its own controller which is configured to adjust the rotational speed of the fan based on the power consumption of the one or more computing devices. When connected in a cluster, the fan cassettes provide a N+1 redundancy, wherein each cassette as an adjacent fan cassette configured as an active backup. The fan cassettes of a cluster communicate via a communication bus. The fan cassettes may include dampers to redirect air drawn from the computing devices back toward them in cold whether conditions, or toward the outdoors, in hot weather conditions.

Abstract: A charging output protection circuit and a charging output protection method. The charging output protection circuit includes a battery pack, a charger, a hardware control unit, and a software control unit, the hardware control unit including a detecting circuit for detecting whether a voltage of the battery pack is normal, a first triode connected to the detecting circuit, and a first a relay, the first triode is configured to control the first relay to be switched off or on based on the detection result of the detecting circuit; the software control unit includes a single chip microcomputer, a communication circuit for communicating between the single chip microcomputer and the battery pack, a second triode and a second relay connected to the single chip microcomputer, and the second triode is used for controlling the second relay to be switched off or on based on the instruction of the single chip microcomputer.

Abstract: A portable power source includes a housing and a battery receptacle supported by the housing. The battery receptacle is configured to receive a battery. The portable power source also includes a first power tool battery pack port that is configured to receive a first power tool battery pack. The portable power source further includes a charging circuit coupled to the battery receptacle and the power tool battery pack, and an inverter. The charging circuit is configured to receive power from the battery receptacle and to provide power to the power tool battery pack port. The inverter includes a DC input coupled to the battery receptacle, inverter circuitry, and an AC output. The inverter circuitry is configured to receive power from the battery receptacle via the DC input, invert DC power received from the battery receptacle to AC power, and provide the AC power to the AC output.

Abstract: An electronic device for suppressing battery swelling includes a first battery cell, a first conductive label, a second conductive label, a third conductive label, and a BMU (Battery Management Unit). The first battery cell includes a first nonconductive housing. The first conductive label, the second conductive label, and the third conductive label are disposed on the first nonconductive housing. The BMU outputs a charging voltage to the first battery cell. The BMU determines the voltage level of the charging voltage by detecting the states of the first conductive label, the second conductive label, and the third conductive label.

Abstract: A method of measuring a deterioration degree of a battery is provided for an electric vehicle. In particular, a Battery Management System (BMS) of a vehicle measures a deterioration degree of a battery by using a change amount of average values of voltage values measured at each current value point or a trend line connecting the average values of the voltage values in a predetermined current value section.

Abstract: Battery management systems and methods can provide real-time automated monitoring of various aspects of battery health and operation. Some battery management systems can use an equivalent cell circuit model to predict a range for the expected behavior of a battery cell under actual operating conditions in real-time. The prediction can be compared to the actual behavior of the cell to determine whether an anomaly exists. Some battery management systems can maintain an estimate of battery state-of-health parameters such as charge capacity and internal resistance and can update these estimates in real time while the battery is being discharged and/or charged. Anomalous variations in a monitored parameter can trigger a real-time fault notification.

Abstract: Embodiments described herein relate generally to a current interrupt device (CID) including a frangible bulb that is configured to be thermally triggered. In some embodiments, the CID includes a breaking contact electrically coupled to a fixed contact and held in electrical contact by the frangible bulb. In some embodiments, the frangible bulb is configured to break at a temperature threshold. In some embodiments, the breaking contact is configured to bend, rotate and/or otherwise deform about a hinge point in order to become electrically disconnected from the fixed contact when the frangible bulb breaks. In some embodiments, opening the electrical circuit between the breaking contact and the fixed contact may prevent overcharging, overvoltage conditions, overcurrent conditions, thermal runaway, and/or other catastrophic failure events.

Abstract: A secondary battery static pressure jig and a secondary cell internal pressure control method using the same is provided. The secondary battery static pressure jig, includes: a supporting member disposed on both surfaces of a battery cell to support the battery cell; a piezoelectric element that is disposed on at least one of surfaces of the supporting member and the battery cell contacting each other and measures a pressure applied to the battery cell; and a controlling part that controls a volume of the piezoelectric element according to the pressure measured by the piezoelectric element, wherein a volume of the piezoelectric element may be changed according to the volume change of the battery cell, and the pressure applied to the battery cell from the supporting member by the volume change of the piezoelectric element may be made to be a constant pressure.

Abstract: An apparatus for estimating a state of a secondary battery, connectable to a positive electrode lead, a negative electrode lead, a first measuring lead, and a second measuring lead in the secondary battery, including: a terminal case including: inner terminals contactable with the positive electrode lead, the negative electrode lead, the first measuring lead, or the second measuring lead on a first surface of the terminal case, and outer terminals respectively electrically connectable to the inner terminals on a second surface facing the first surface of the terminal case, a voltage measuring unit electrically connected to at least two of the outer terminals, and measuring a potential difference between the first and the second measuring lead, and a control unit estimating a state of health of the secondary battery based on the potential difference between the first measuring lead and the second measuring lead.

Abstract: A housing for receiving at least one battery cell pack, having at least one housing wall, wherein the housing wall is formed at least partially from a plastic, and an optical conductor is formed in the plastic of the housing wall.

Abstract: A state of charge (SOC) estimation method of a battery including: an SOC estimation device estimation mode checking step of checking an operation mode of an SOC estimation device; and an SOC estimation step of estimating an SOC of the battery according to an estimation mode of the SOC estimation device checked in the SOC estimation device operation mode checking step. The SOC estimation step estimates an SOC based on any one of an open circuit voltage during charging, an open circuit voltage during discharging, and an average open circuit voltage according to an estimation mode of the SOC estimation device.

Abstract: A fusing system for a brick of lithium ion battery in a battery module is provided where the fusing system has a combination of low-voltage fuses and a high-voltage fuse. The low-voltage fuse can have one or more fusing elements in a springy spiral configuration or a straight configuration with the fuse element encapsulated.

Abstract: A power unit made up of a weld-free assembly of a plurality of battery cells having positive and negative contact surfaces, respectively, on the two opposing front ends thereof, the cells being mechanically juxtaposed and parallel with one another, the unit including: a bottom plate having metal contact zones capable of ensuring electrical and optionally thermal connection with the bottom metal base of a cell; a top plate having metal contact zones for ensuring electrical connection with the top cap of a cell; means for connecting with the top caps of the cells, which are resiliently deformable in an axial direction relative to the orientation of the cells.

Abstract: A problem of the present invention is to provide a rectangular secondary battery in which heat generation of a current collecting plate is suppressed. A rectangular secondary battery of the present invention which solves the above-described problem includes: a flat wound group which is obtained by winding a positive electrode and has a positive electrode metal foil-exposed portion; a battery can which stores the wound group; a battery lid which seals the battery can; a positive electrode external terminal which is provided on the battery lid; and a positive electrode current collecting plate which electrically connects the external terminal and the wound group. The positive electrode current collecting plate includes a fixed portion fixed on the battery lid, a welded portion welded on the metal foil-exposed portion of the wound group, and a joint connecting the fixed portion and the welded portion.

Abstract: A rechargeable battery according to an exemplary embodiment of the present invention includes: an electrode assembly; a casing which accommodates the electrode assembly and has an opening; a cap assembly which is coupled through the opening and seals the casing; a spacer which is positioned between the electrode assembly and the casing and has multiple holes; and a vent member which is formed on a bottom surface of the casing which is positioned opposite to the opening.

Abstract: A cylindrical lithium battery having a positive pole and a negative pole at the same end, including a shell, a core in the shell, a cover and a recharging protection assembly mounted on top of the positive pole of the core, and is covered and fixed by the cover; the recharging protection assembly has an upper frame, a recharging protection panel, a lower frame, a positive pole nickel plate and a negative pole nickel plate; the recharging protection panel is disposed on the lower frame; a top surface of the recharging protection panel is welded with a gold-plated copper cap; one side of the recharging protection panel is provided with a USB charging port.

Abstract: A conductive member is disposed near a side of the sealing plate facing an electrode assembly with a first insulating member disposed therebetween. The conductive member has a conductive-member opening portion. The conductive member is connected to a positive electrode terminal that projects toward au outside of the battery from the sealing plate. The conductive-member opening portion of the conductive member is sealed by a deformation plate. The deformation plate is connected to a first positive-electrode current collector of a current collecting member, which is electrically connected to positive electrode plates. The deformation plate is deformed in response to an increase in pressure in a rectangular exterior body, and the conductive path between the positive electrode plate and the positive electrode terminal is broken in response to the deformation of the deformation plate. A cover is disposed between the first positive-electrode current collector and the electrode assembly.

Abstract: A battery block includes a plurality of cylindrical batteries, a battery holder having a plurality of accommodating parts into which axial one end portions of the cylindrical batteries are inserted, and a pair of terminal plates, that connect the cylindrical batteries in parallel. Each of the accommodating parts includes the partition wall formed along an outer peripheral surface of cylindrical battery, an extending portion that extends on the first end surface so as to surround a part of the first end surface on which the safety valve is disposed and is formed integrally with the partition wall, and an opening that exposes the part of the first end surface on which the safety valve is disposed.

Abstract: An electrochemical device includes: an electricity storage device that includes a positive electrode, a negative electrode, a separator, and a plurality of lead plates electrically connected to the positive electrode or the negative electrode, the positive electrode and the negative electrode being stacked via the separator and wound; a connection plate having a first surface on a side of the electricity storage device and a second surface opposite to the first surface, the plurality of lead plates being stacked and welded to the first surface; a rupture disc connected to the second surface of the connection plate; and an insulator that abuts on a first area that is an outer peripheral area of the second surface and insulates the connection plate and the rupture disc from each other, the plurality of lead plates being welded to a second area opposite to the first area of the first surface.

Abstract: In the stacked battery, a short-circuit current shunt part is electrically connected to the electric elements, and an insulating layer of the short-circuit current shunt part is constituted of material having a predetermined melting point or glass transition temperature. When heat is excessively generated in the battery due to internal short circuits etc. and the temperature of the battery reaches the melting point of the insulating layer, the insulating layer melts and its shape is changed to short-circuit the short-circuit current shunt part, and current flows from the electric elements into the short-circuit current shunt part. To measure the current flowing into the short-circuit current shunt part makes it possible to easily grasp excessive heat generation of the battery to suppress deterioration of the battery due to heat generation.

Abstract: A secondary cell includes an electrode body including a plurality of electrode groups each including a plurality of positive electrodes, a plurality of negative electrodes, and at least one separator, the positive electrodes and the negative electrodes each being alternately stacked on each other with the separator interposed in between; and at least one metal plate disposed between the electrode groups. Electrodes that are disposed at both ends of each of the electrode groups are the negative electrodes. The metal plate is in contact with a mixture layer of a negative electrode constituting at least one of the electrode groups, the metal plate being provided in a noncontact state with conductive members other than the mixture layer.

Abstract: A relay unit includes: bus bars serving as conductive paths; relays including contact portions for turning on and off energization of the bus bars, and a plurality of terminals connected to the contact portions, the bus bars being fixed to the terminals; and heat dissipation members that are fixed to the terminals of the relays, receive heat of the terminals, and dissipate the heat.

Abstract: The disclosure relates to an end cover assembly, a secondary battery, a battery pack and an electric device. An end cover assembly for a secondary battery includes: an end cover; a first terminal including a first connecting section and a second connecting section disposed along a radial direction; a second terminal including a third connecting section, a fuse section and a fourth connecting section sequentially connected along the radial direction; along an axial direction, orthographic projections of the first and third connecting sections at least partially overlap with each other, one of the first and third connecting sections is configured to connect with a busbar, the other is configured to connect with an electrode assembly, the fourth connecting section is configured to connect with the second connecting section; and an insulating component, at least a part of which is located between the first connecting section and the third connecting section.

Abstract: Provided is a device including: a battery; a receiving terminal configured to receive power from an external device; a first path configured to supply a portion of the power received from the external device to the battery to charge the battery; and a second path configured to supply a portion of the power received from the external device to a heater to heat the heater.

Abstract: A collector that electrically connects tabs derived from electrode bodies and terminals of a battery to each other includes a first connection portion to which the conductive member on a tab side is connected, a second connection portion to which the conductive member on a terminal side is connected. The first connection portion and the second connection portion are connected by a connecting portion. The collector opposes the sealing plate with the insulating member in between, the second connection portion includes a fuse portion including a through hole between the conductive member connection portion on the terminal side and the connecting portion, and the fuse portion is disposed so as not to come in contact with the insulating member.