123results about "Primary cell maintainance/servicing" patented technology

Systems and methods are provided for testing and / or validating anti-propagation systems designed to mitigate a thermal runaway condition in lithium-ion batteries. A system comprises a first temperature sensor for detecting a temperature of a trigger battery cell within the battery module and a heater removably couplable to a substantially central portion of the trigger cell and configured to heat the trigger cell to a threshold temperature. The system further comprises a second temperature sensor for detecting a temperature of a test battery cell adjacent to the trigger cell within the battery module. The trigger cell undergoes a thermal runaway condition upon reaching the threshold temperature. The system may further comprise a controller for controlling the rate of heating of the trigger cell. The system ensures that the trigger cell will breach via the pressure release valve or cell vent after reaching the threshold temperature.

The utility model relates to the technical field of batteries, and provides an immersed liquid cooling box and a battery pack. The immersed liquid cooling box comprises a box body. The box body is provided with an immersion cavity configured to place a battery cell. And the immersion cavity is provided with a liquid inlet and a liquid outlet in the outer surface of the box body. The liquid inlet and the liquid outlet are located in the two opposite sides of the box body in the width direction respectively. Therefore, the flow path of the immersion liquid can be shortened, the temperature difference between the battery cells is reduced, and the service life of the battery is prolonged.

The utility model discloses a flame-retardant lithium battery which comprises an explosion-proof outer shell and a lithium battery core body, the lithium battery core body is arranged in the inner space of the explosion-proof outer shell, a heat dissipation layer is wrapped outside the lithium battery core body, a flame-retardant belt is wrapped on the surface of one side, far away from the lithium battery core body, of the heat dissipation layer, and the flame-retardant belt is arranged in a multi-layer flame-retardant composite mode. The surface of one side, far away from the heat dissipation layer, of the flame-retardant belt is wrapped with a heat insulation layer, the surface of one side, far away from the flame-retardant belt, of the heat insulation layer is connected with the inner wall of the explosion-proof outer shell, the top of the explosion-proof outer shell is provided with a top cover through an assembly mechanism, the top of the lithium battery core is provided with a positive pole through a positive electrode plate, and the upper end of the positive pole is arranged at the top of the top cover. By arranging a series of structures, good heat dissipation, flame retardance and heat insulation performance are achieved, the flame retardant belts are composited in a multi-layer mode, the flame retardant belts not only have good flame retardance, but also are high in viscosity, the supporting structure strength and the tensile strength are high, and the explosion-proof outer shell and the top cover are assembled in an anti-seepage and sealed mode.

Cooling circuit for a battery for an electric or plug-in hybrid motor vehicle. Cooling circuit (1) comprising a plurality of branches (C1, C2, C3, C4, C5, C6) arranged in parallel, and comprising respectively: - a first fitting (6), - an inlet port (7), - an outlet port (9), and - a second fitting (10), the circuit being characterized in that for each of the branches (C1, C2, C3, C4, C5, C6): - the first fitting (6) and / or the inlet port (7), and / or - the second fitting (10) and / or the outlet port (9) has a cavity so as to delimit a housing configured to accommodate an intermediate nozzle element (11) having a passage cross-section (S) configured to calibrate the flow rate of the heat transfer fluid, the passage cross-section (S) of the intermediate nozzle element (11) being specific to each branch (C1, C2, C3, C4, C6 ... C5, C6). Figure for the abridged version: Fig. 9

One or more microtransponders may be attached to at least a component of or location in a battery cell and may be configured to provide digital information to a reader, thereby enabling the reader to authenticate the battery cell.

The utility model relates to the technical field of new energy batteries, in particular to a shell and a battery module. The shell comprises a bottom plate, two first cross beams, two second cross beams and at least one liquid cooling plate, and each first cross beam is connected to the bottom plate and provided with a first flow channel; each second cross beam is connected to the bottom plate; one end of each second cross beam is connected to one side of one second cross beam, and the other end of each second cross beam is connected to one side of the other cross beam; two ends of the liquid cooling plate are respectively connected to the two first cross beams; the liquid cooling plate is provided with at least one second flow channel; wherein the bottom plate, the two first cross beams and the two second cross beams define a containing cavity; the liquid cooling plate is arranged in the containing cavity, and the two first flow channels communicate with the second flow channel. The shell has the advantages of being simple in structure, convenient to install and low in cost.

The invention provides a battery type identification circuit and device.The battery type identification circuit is electrically connected with a battery to be detected and comprises a power supply module, an output control module, a PWM charging control module and an MCU main control unit, the first end of the power supply module is electrically connected with a first pin of the MCU main control unit, and the second end of the power supply module is electrically connected with a second pin of the MCU main control unit; the second end of the power supply module is electrically connected with the first end of the output control module; the second end of the output control module is electrically connected with the first end of the PWM charging control module, and the third end of the output control module is electrically connected with the second pin of the MCU main control unit; the second end of the PWM charging control module is electrically connected with the third pin of the MCU main control unit, the third end of the PWM charging control module is electrically connected with the fourth pin of the MCU main control unit, and the fourth end of the PWM charging control module is electrically connected with the first end of the battery to be tested. Therefore, the accuracy of battery type identification is improved.

A detection apparatus (10) and a target detection and repair system are provided. The detection apparatus (10) includes: a conductive film (11) having N film regions (111), where the conductive film (11) is used to fit with an insulating layer (32) of a target, and the target includes a metal layer (31), the insulating layer (32) covering the metal layer (31); a signal generator (12) configured to transmit a first electromagnetic signal (01) to the conductive film (11); and a signal receiver (13) including N collecting units (131), where the n-th film region (111) corresponds to the n-th collecting unit (131), and the signal receiver (13) is configured to obtain the n-th collecting signal. The collecting signal is used to determine whether there is a predetermined defect (33) in a region of the insulating layer (32) covered by the n-th film region (111); and position information of the n-th film region (111) is used to determine position information of the predetermined defect (33) on the insulating layer (32).

The invention relates to a retractable positioning mandrel which solves the problems that resistance is increased in the moving and picking process of a flow choking ring and the risk of breakage of the flow choking ring exists in an existing device. The device is mainly divided into two parts, wherein one part is a power component consisting of a cylinder bracket (1), a needle-shaped cylinder (2) and a cylinder contact (16); according to the other part, a mandrel body is composed of a base (3), a spring steel wire (4), a connecting stand column (5), a set screw I (6), a limiting disc (7), an outer expansion push piece (8), a screw I (9), an expansion base (10), a conical expansion core (11), a set screw II (12), a screw II (13), a contraction tension spring (14) and a push rod (15). The cylindrical cage-shaped structure formed by the spring steel wires evenly distributed around the circumference is adopted to replace an integral positioning mandrel to serve as a positioning piece of the choke ring, the contact area between the positioning piece and a workpiece can be greatly reduced, resistance during relative movement is reduced, and the reliability of automatic picking of the choke ring can be better improved.

The utility model discloses a thermal battery activation control tool which comprises an air cylinder mounting plate, an upper mounting plate, a bottom plate and an activation assembly, a pressure reducing valve, an electromagnetic valve and an air cylinder are arranged on the air cylinder mounting plate, the air cylinder mounting plate is connected with the upper mounting plate through a screw rod, the upper mounting plate is connected with the bottom plate through a supporting rod, and the bottom plate is connected with the activation assembly. The activation assembly is arranged on the thermal battery, and the upper mounting plate is connected with the thermal battery. The air pressure is adjusted through the pressure reducing valve, air flows to the electromagnetic valve from the air pipe, the electromagnetic valve is remotely controlled to change the air flow channel so as to control stretching and retracting of the air cylinder, the drawing ring is installed on the air cylinder, the drawing ring is connected with the plug pin through the drawing line, and the plug pin is pulled out and is not limited by the plug pin due to movement of the air cylinder. And the activation rod impacts the thermal battery primer under the guide of the sliding chute and the action of the spring to complete battery activation. And an operator can remotely control the tool, so that the safety of the activation process is ensured.

The invention relates to the technical field of intelligent door lock power supply management, and discloses an intelligent door lock dry battery low temperature early warning method and system, an intelligent door lock and a storage medium, the method comprises the following steps: obtaining an NTC partial voltage value and a fixed resistance value, and calculating according to the NTC partial voltage value and the fixed resistance value to obtain a target battery environment temperature; acquiring a battery basic voltage and a safety coefficient, and if the target battery environment temperature accords with a preset temperature interval, performing compensation calculation on the target battery environment temperature according to the battery basic voltage, the safety coefficient and the preset temperature interval to obtain an alarm threshold voltage; and obtaining the current power supply voltage, and if the current power supply voltage is smaller than the alarm threshold voltage, triggering overvoltage early warning and prompting the user to carry the mechanical key to go out. The target battery environment temperature is obtained, the alarm threshold value is calculated according to the target battery environment temperature, and whether the current voltage is too low or not is detected according to the alarm threshold value so as to prompt a user to carry a mechanical key to go out.

The utility model belongs to the technical field of batteries, and discloses a battery system which comprises a battery core stacking body, an end plate, an acquisition unit and a battery management unit, the end plate is arranged on the end surface of the battery cell stacking body; the acquisition unit comprises an acquisition module and a flexible circuit board, the acquisition module is used for acquiring parameter information of the cell stack, the flexible circuit board is electrically connected with the acquisition module, and a plug-in connector of the flexible circuit board is arranged on the end plate; the battery management unit comprises a slave control module arranged on the end plate, and the slave control module is electrically connected with the plug-in connector. According to the utility model, the connector of the flexible circuit board and the slave control module are integrated on the end plate of the battery cell stack body, so that the strength of the end plate is enhanced, and meanwhile, the connector of the flexible circuit board and the slave control module are directly and electrically connected without reserving a space for connecting and plugging a wire harness in the prior art, so that the Y-axis space utilization rate of the battery system is improved, and the cost is reduced. Moreover, the technological process of wiring harness plugging is reduced, and the overall wiring harness cost is reduced.

The battery pack safety protection device comprises a battery box and a cover plate, an L-shaped heat conduction plate is installed at the bottom of the battery box, penetrating openings are formed in the two ends of the L-shaped heat conduction plate, second heat conduction plates are inserted into the penetrating openings, a limiting frame is fixed to the other side face of the L-shaped heat conduction plate, and the limiting frame is fixed to the bottom of the battery box. A first heat conducting plate is inserted into the limiting frame, the second heat conducting plate and the first heat conducting plate both penetrate through the top of the cover plate, a heat conducting piece is fixed to the top of the L-shaped heat conducting plate, a through groove matched with the heat conducting piece is formed in the position, corresponding to the heat conducting piece, of the top of the cover plate, and the heat conducting piece is fixed in the through groove; a second barrier strip is fixed to the top of the outer wall of the second heat conduction plate, and a second adaptive hole allowing the second heat conduction plate and the second barrier strip to penetrate through is formed in the top of the cover plate. According to the utility model, the battery pack is convenient to take and place and heat conduction is facilitated.

The invention discloses a soft package battery and a battery assembly, and the soft package battery comprises a shell, a battery cell, a first outer tab and a second outer tab. The shell comprises a packaging main body, a top sealing edge and two side sealing edges, the packaging main body is provided with an inner cavity, and the packaging main body, the side sealing edges and the top sealing edge define a mounting cavity; the shell further comprises a first protruding part and a second protruding part which protrude towards the installation cavity, the first protruding part is provided with a first containing cavity communicated with the inner cavity, and the second protruding part is provided with a second containing cavity communicated with the inner cavity. The battery cell is positioned in the inner cavity and comprises a plurality of first inner tabs and second inner tabs; the first outer tab and the plurality of first inner tabs are welded together to form a first welding part, and at least part of the first welding part is located in the first accommodating cavity; the second outer tab and the plurality of second inner tabs are jointly welded to form a second welding part, and at least part of the second welding part is located in the second accommodating cavity, so that the space of the first welding part and the second welding part in the inner cavity is reduced, and the energy density of the soft package battery is improved.

Various embodiments are described herein for a system and method for condition monitoring and detecting and diagnosing faults in electromechanical or electrochemical systems and batteries using a frequency-domain statistical analysis framework. The method comprises receiving raw time-domain signals from one or more sensors monitoring the electromechanical or electrochemical system, applying a Short-Time Fourier Transform to convert the time-domain signals into a spectrogram, and segmenting the spectrogram into a plurality of frequency band segments. Each segment is independently analyzed using Principal Component Analysis based Multivariate Statistical Process Control, followed by statistical smoothing of the MSPC outputs. Fault conditions can be classified based on the smoothed statistical indicators, enabling accurate identification of deviations from baseline behavior.

The utility model discloses a lifesaving position indicating lamp with high environmental adaptability and a lifesaving system, and relates to the field of lighting equipment. The lifesaving position indicating lamp with the high environmental adaptability comprises a position indicating lamp body, a seawater battery assembly and a wire connecting the position indicating lamp body and the seawater battery assembly, the seawater battery assembly comprises a battery shell with the two ends provided with a positive electrode and a negative electrode respectively, and the two ends of the battery shell are connected with a positive electrode protection cap and a negative electrode protection cap which are arranged on the positive electrode and the negative electrode in a sleeving mode respectively. At least one excitation mechanism is arranged in the battery shell; the excitation mechanism is used for generating gas when the excitation mechanism is thrown into seawater and collided, so that the positive electrode protective cap and the negative electrode protective cap are separated from the battery shell, and seawater enters the battery shell to activate the seawater battery assembly to lighten the position indicating lamp body. The lifesaving position indicating lamp with strong environmental adaptability and the lifesaving system can prevent external steam from entering the battery shell to excite the seawater battery assembly in a long-time storage process, and ensure normal use after long-time storage in different storage environments.

The utility model provides an alkaline zinc-manganese battery which comprises a battery steel shell, a cathode current collector assembly is assembled at the upper end of the battery steel shell, an anode ring is coaxially embedded in the battery steel shell, an isolation tube is sleeved in a central cavity of the anode ring, and cathode zinc paste is filled in the isolation tube; an annular closed cavity is defined by the top surface of the positive electrode ring, the bottom surface of the negative electrode current collector assembly, the outer circumferential surface of the isolation tube and the inner circumferential surface of the battery steel shell, a hydrogen storage piece is embedded in the closed cavity, and the hydrogen storage piece is formed by pressing a hydrogen storage material. According to the alkaline zinc-manganese battery disclosed by the utility model, hydrogen generated in the battery can be transferred and stored in the hydrogen storage material in time, so that air pressure change in the battery caused by hydrogen evolution in the battery and side effects caused by the air pressure change are prevented.

This invention provides a double-layer, high-energy-density electrode, a storage lithium battery, and a method for preparing the same. The double-layer, high-energy-density electrode includes a current collector, a first active layer, and a second active layer. The first active layer is located between the current collector and the second active layer. The first active layer contains an energy-type active material, and the second active layer contains a pre-charged power-type active material. The open-circuit voltage difference between the energy-type active material and the pre-charged power-type active material is ≤0.5V. This invention provides a double-layer, high-energy-density electrode for storage lithium batteries with fast activation, high energy density, and good rate performance. It constructs an efficient conductive network, improving the battery's discharge performance. By controlling the porosity of the second material layer to be greater than that of the first material layer and by creating seepage drainage grooves on the surface of the second material layer, the electrolyte wetting rate of the electrode is increased, shortening the activation time.

The utility model discloses a device for improving passivation and insufficient discharge capacity of a lithium thionyl chloride battery, which relates to the technical field of batteries and comprises a battery pack component and an energy storage device connected with the battery pack component in parallel, the battery pack component charges the energy storage device, and the battery pack component and the energy storage device which are connected in parallel form a charge-discharge assembly. And the charging and discharging assembly is connected with an electric load. The energy storage device is connected in parallel to the two ends of the battery pack component, so that the battery pack component can charge the energy storage device all the time, and the energy storage device stores the electric quantity of the battery pack component. And the battery pack component can fully release the electric quantity when being charged with small current. The energy storage device supplies energy to the subsequent load, and the discharge capacity of the charge and discharge assembly is determined by the energy storage device, so that the problem of insufficient discharge current caused by passivation of the battery pack component is avoided. The service life of battery pack components is prolonged.

The utility model relates to the field of alkaline batteries, in particular to a high-temperature-resistant alkaline battery which comprises a steel shell, a heat dissipation protection assembly is arranged on the outer wall of the steel shell, and the heat dissipation protection assembly comprises the protection sleeve, a first groove body, a second groove body, a fixing needle, a heat conduction sheet and a heat conduction groove; a protective sleeve is fixedly connected to the outer wall of the steel shell, a groove is formed in the upper end of the steel shell, and a protruding block at the upper end of the protective sleeve is placed in the groove. According to the heat dissipation protection assembly, through the heat conduction grooves formed in the heat conduction pieces, the contact area between the heat dissipation protection assembly and air is increased, the positions, close to the outer wall of the steel shell, of the heat conduction pieces are attached to the outer wall of the steel shell, the temperature on the surface of the battery is dissipated through the four heat conduction pieces, and therefore the high-temperature resistance of the battery is improved; and then a plurality of fixing needles are plugged into a second groove body, and the strength of the protective sleeve is improved, so that the risk of liquid leakage caused by overall deformation of the battery when the battery is collided by external force is prevented.

The present disclosure relates generally to a defibrillator assembly comprising a defibrillator having a first operating mode for delivering a high energy output to a patient and a second operating mode for monitoring the patient, a first battery unit operably coupled to the defibrillator, and a second battery unit operably coupled to the defibrillator. One of the first battery unit and the second battery unit provides power to the defibrillator during the second operating mode. Both the first battery unit and the second battery unit provide power to the defibrillator during the first operating mode.

According to one embodiment of the present invention, a pressure measuring unit includes: a main body portion, which is configured to have an upper surface, a lower surface and multiple side surfaces; a connector portion, which is configured to be provided to at least one of the multiple side surfaces of the main body portion; a pressure measuring portion, which is connected to the upper surface of the main body portion and is configured to measure the pressure applied from the outside toward the upper surface of the main body portion; and a control unit, which is connected to the pressure measuring portion and is configured to receive a measured pressure value from the pressure measuring portion and output the received pressure value to a connected communication line.

The application discloses a micro-thermal battery activation device and relates to the technical field of micro-thermal battery activation. The device comprises a battery base body, a mounting seat is fixedly connected to the top of the battery base body, a filler is mounted at the bottom of the mounting seat, a plurality of ignition caps are inlaid between the filler and the bottom of the mounting seat, a circular ring seat is fixedly arranged in the mounting seat, a plurality of striking pins are vertically and slidably arranged in the surface circular holes of the circular ring seat through elastic members; three groups of force storage assemblies are arranged, each group of force storage assemblies corresponds to a group of trigger assemblies, the trigger conditions of the three groups of trigger assemblies are different, the force storage assemblies are matched with the trigger assemblies, multi-factor triggering in a complex environment is realized, the situation of activation failure is avoided, the force storage assemblies are in a non-force storage state in a non-triggering state, the spring is prevented from being in a stressed state for a long time, stress fatigue is avoided, and long-term preservation is more facilitated.

The invention provides a solid-state battery production control method, a solid-state battery production control system and isothermal static pressure equipment, and relates to the field of solid-state battery production control, and according to the method, cooperative precise control of pressure and temperature is achieved in the solid-state battery blank pressing forming process, and the density uniformity of a pressed blank and the dynamic response performance of the equipment are improved.

The utility model discloses a battery PTC connecting structure relates to lithium subcylindrical battery technical field, include: plastic cover, the plastic cover sets up at battery shell top and is provided with the open installation circular groove, is equipped with the through -hole for the electric core to pass through upwards on the installation circular groove, metal positioning sheet, the metal positioning sheet sets up in the installation circular groove and is connected with the electric core, PTC thermistor, the PTC thermistor is circular and is connected on the top of metal positioning sheet in the installation circular groove, metal false cover, the metal false cover sets up in the installation circular groove and bottom surface is connected with PTC thermistor, be equipped with the anti -rotation spare for limiting metal positioning sheet, metal false cover rotation in the installation circular groove. The utility model discloses through the structure innovation, makes the false cover surface keep level while keeping the PTC protection function, and all parts vertical stacking connection makes the PTC response fast, especially applicable to the security protection demand of miniaturization, high energy density battery.

The invention discloses a microminiature thermal battery activation device, and relates to the technical field of microminiature thermal battery activation. Comprising a battery base body, a mounting seat is fixedly connected to the top of the battery base body, filler is mounted at the bottom of the mounting seat, a plurality of ignition caps are mounted between the filler and the bottom of the mounting seat in an embedded manner, a circular ring seat is fixed in the mounting seat, and a plurality of firing pins are vertically and slidably mounted in circular holes in the surface of the circular ring seat through elastic parts; the three sets of force storage assemblies are arranged, each set of force storage assembly corresponds to one set of triggering assembly, the triggering conditions of the three sets of triggering assemblies are different, the three sets of triggering assemblies are matched with the force storage assemblies, multi-factor triggering in a complex environment is achieved, the situation of activation failure is avoided, and the force storage assemblies are in a non-force storage state in a non-triggering state; the spring is prevented from being in a stress state for a long time to cause stress fatigue, and long-term storage is facilitated.

A method of thermal management of a battery, wherein the battery comprises at least one cell and wherein a heating device is configured to heat the battery in response to a heating instruction. The method comprises determining a state of charge of the cell, a cell current of the cell; a first value of a first parameter of the heating device; a reference cell temperature of the cell; a maximum cell temperature and a minimum cell temperature of the cell. In an event that the maximum cell temperature is below a first threshold temperature; the minimum cell temperature of the cell is below a second threshold temperature; and the state of charge of the cell is above a threshold state of charge; the method further comprises instructing the heating device to heat the cell.

The utility model discloses a kind of battery pack with battery swelling monitoring function, including shell, multiple battery and strain fiber;The shell includes box, upper cover plate, lower cover plate;Box is provided with swelling beam, the space of the box is divided into battery space and equipment space;Battery is arranged in battery space with horizontal array mode, forms battery array;Strain fiber at least includes first strain fiber and second strain fiber;First strain fiber is located along the length direction of the swelling beam in the side of equipment space, and forms multiple swelling measuring points;Second strain fiber is fixed in the inside of upper cover plate in serpentine mode, traverses entire battery array, and forms multiple swelling measuring points;The connection of grating measuring point and the shell is tight rigid connection;Battery and shell are filled between by structural adhesive.This battery pack uses fiber grating sensing technology, can monitor the swelling condition of battery pack, substantially does not occupy battery pack space, does not affect original structure of battery pack.