71results about "Primary cell maintainance/servicing" patented technology

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.

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.

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 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 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 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 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.

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.

The invention belongs to the technical field of lithium primary batteries, and particularly discloses a lithium carbon fluoride battery pack capable of continuously discharging at high power and a manufacturing method of the lithium carbon fluoride battery pack. The battery pack comprises at least one unit battery formed by a plurality of single batteries, a battery shell and a sheet-shaped heat management interlayer, the sheet-shaped heat management interlayer is arranged between adjacent single batteries in the unit battery, and / or between different unit batteries, and / or between the unit battery and the battery shell; the sheet-shaped heat management interlayer is made of a graphene skeleton phase change composite material and is composed of a three-dimensional porous graphene network and a composite phase change material filled in pores of the network. By integrating the flexible interlayer with high heat conduction and high heat storage functions, heat can be actively and quickly absorbed and homogenized during high-power discharge, the temperature rise of the battery pack is effectively inhibited, and local hot spots are eliminated, so that continuous and stable high-power output of the lithium carbon fluoride battery is realized, and the safety and reliability of a system are remarkably improved.

The utility model belongs to the field of alarm devices, and particularly relates to a primary lithium battery leakage alarm device, which comprises a main body provided with a cavity and a mounting seat arranged on the main body; the control assembly is mounted in the cavity; the sensor module is mounted on the mounting seat, and the sensor module is electrically connected with the control assembly; the sealing structure is mounted between the mounting seat and the sensor module; the functional component is mounted on the surface of the main body; and the adjusting assembly is installed on the surface of the main body, and the adjusting assembly and the functional assembly are located on the same plane. The beneficial effects are that the main body and the sensor module are directly connected through the adapter which is convenient to plug and unplug, and a sealing structure is arranged at the joint to prevent dust and foreign matters from entering, so that interference factors in a signal transmission process can be reduced, and the reliability of data acquisition is improved.

A PPS-based composition comprising: A) of at least one polyphenylene sulfide polymer; B) at least one polyetherimide polymer, C) at least one alkoxysilane, D) optionally at least one thermoplastic elastomer containing epoxy functional groups, and D) optionally an epoxy-modified polysiloxane having enhanced toughness properties. The PPS-based composition comprising components (A)-(E) has a V-0 rating using UL 94 V (2013) standard (0.8 mm thickness) and therefore is a flame-retardant PPS-based composition. An article comprising or made from such a PPS-based composition. Use of the article as a component of an electric vehicle. A method of cooling a battery and / or operating a battery comprising passing a heat transfer fluid in a heat transfer tube comprising or made from the PPS- based composition.

A PPS-based composition comprising: A) at least one polyphenylene sulfide polymer; the present invention relates to a composition comprising A) at least one thermoplastic elastomer, B) at least one polyetherimide polymer, C) at least one alkoxysilane, D) optionally at least one thermoplastic elastomer containing epoxy functional groups, and D) optionally an epoxy-modified polysiloxane having enhanced toughness properties. The PPS-based composition comprising components (A)-(E) has the V-0 rating using the UL 94 V (2013) standard (0.8 mm thickness), and is therefore a flame retardant PPS-based composition. An article of manufacture comprising or made from such a PPS-based composition. Use of the article as a component of an electric vehicle. A method of cooling and / or operating a battery, the method comprising passing a heat transfer fluid through a heat transfer tube comprising or made from the PPS-based composition.

The invention relates to the technical field of chemical batteries, in particular to a preparation method of a primary lithium manganese dioxide battery and an obtained product. The method comprises a process of winding a positive plate, a diaphragm and a negative plate into a battery cell monomer, injecting an electrolyte and packaging into a battery, the positive plate is formed by coating positive slurry on the front and back surfaces of an aluminum foil, the positive slurry comprises the following components in percentage by weight: 30-50% of manganese powder, 1-4% of acetylene black, 0.1-2.0% of graphene, 2-5% of an adhesive, 40-60% of deionized water and 1-15% of lithium iron phosphate, and the negative plate is a copper-lithium composite lithium strip. The method further comprises a process of pre-charging and pre-discharging the battery, the pre-charging current is 10%-30% of the rated current corresponding to the amount of doped lithium iron phosphate, and the pre-charging electric quantity is 80%-90% of the capacity of doped lithium iron phosphate. The initial discharge voltage and the high-rate discharge capacity of the primary lithium manganese dioxide battery are effectively improved, and the high-power discharge performance of the primary lithium manganese dioxide battery is improved.

The invention relates to the technical field of preparation of electrochemical materials, in particular to a preparation method of a high-flame-retardant solid-state battery isolating membrane, which comprises the following steps: S1, preparing a matrix polymer solution; s2, adding a magnesium hydroxide flame retardant into the matrix polymer solution for dispersion treatment to form uniform mixed slurry; s3, coating a substrate with the mixed slurry to form a wet film; s4, carrying out drying treatment to obtain a primary isolating membrane; s5, performing low-temperature plasma surface treatment to obtain a surface activated isolating membrane; s6, performing hot pressing treatment to obtain a densified isolating membrane; and S7, cooling and rolling the compact isolating membrane to obtain a finished product. According to the preparation method disclosed by the invention, through a multi-stage dispersion, plasma surface activation and hot-pressing densification synergistic process, uniform distribution of a flame retardant, stable membrane body structure and enhancement of interfacial compatibility are realized, so that the flame retardance, mechanical strength and electrochemical safety performance of the isolating membrane are remarkably improved.

The utility model discloses a pump-driven two-phase system for heat management of a solid-state battery, which comprises a heat management assembly, a heat exchange assembly and a heat exchange assembly, the heat management assembly comprises a water pump, two sections of pipelines and joints, the two sections of pipelines are fixed at two ends of the water pump, and the other two sections of pipelines are connected to the pipelines on two sides of the water pump through the joints; the anti-falling assembly comprises four arc-shaped plates, first grooves, insertion rods and spring columns, the arc-shaped plates wrap the outer side of the pipeline, the first grooves are formed in one ends of the arc-shaped plates, the insertion rods are fixed to the other ends of the arc-shaped plates, and the two ends of the spring columns are fixed between the two arc-shaped plates correspondingly; the anti-disengaging assembly further comprises an anti-skid pad and an anti-skid ring, the anti-skid pad is fixed to the inner side of the arc-shaped plate, and the anti-skid ring is fixed to the inserting rod. The problems that when a pump driving system operates, a working medium is driven by a pump to circularly flow in a closed system, a pump body vibrates during operation, pipeline joints connected to the two ends of the pump are loosened, and the sealing performance and stability of pipelines are affected are solved.

The invention belongs to the technical field of electrochemical energy storage batteries, and provides an electron supplementing agent, a preparation method, an alkali metal battery and application. The electron supplementing agent is a solution of a stable compound formed by solvated electrons and electron-deficient organic molecules, and the electron-deficient organic molecules are compounds which have central polycyclic aromatic hydrocarbon structures and are substituted by strong electron withdrawing groups at symmetrical positions of polycyclic aromatic hydrocarbon. The strong electron withdrawing group enables the central polycyclic aromatic hydrocarbon to form an electron-deficient central ring structure, so that a solvated electron can be captured and stabilized, and an e-(at) electron-deficient organic molecular compound is formed. The preparation method of the electron supplementing agent is simple, large-scale production is easy, and the performance of the primary battery can be remarkably improved. The stable solvation electronic application is not limited to primary batteries, can be expanded to the fields of secondary batteries, photoelectrocatalytic conversion, synthetic chemistry, pollutant degradation and the like, and has great application value.

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

The utility model discloses a button cell and electric equipment, the button cell includes: a cell body including a housing, a battery cell and an upper cover assembly, the battery cell is located in the housing, the housing is provided with an opening part, and the upper cover assembly is connected with and seals the opening part; the first magnetizer comprises a protruding part and an attaching part connected to the protruding part, the attaching part is connected with the upper cover assembly in an attached mode, the protruding part protrudes out of the attaching part, and the protruding part is arranged to be far away from the upper cover assembly relative to the attaching part. According to the button cell, the magnetic field with the stable direction can be generated through the first magnetizer to offset an unstable magnetic field generated by the change of the magnetic field of the cell, so that the accuracy of a bottom noise test is ensured, materials do not need to be newly added, and the cost is relatively low.

This invention provides a solid-state battery production control method, system, and isostatic pressing equipment, relating to the field of solid-state battery production control. The method achieves coordinated and precise control of pressure and temperature during the solid-state battery blank pressing process, improving the uniformity of blank density and the dynamic response performance of the equipment.

A system includes an apparatus including a cap configured to fit over an end of a battery cell having a terminal. The cap forms an opening arranged to be over the terminal. The apparatus further includes a protective element for the opening that provides selective access to the terminal and a securing feature for removably securing the cap to the battery cell.

This invention discloses an insulating protection structure for a thermal battery and its preparation method, belonging to the field of thermal battery manufacturing technology. The structure includes a battery stack and two current-conducting strips. The battery stack is sequentially wrapped with a first insulating layer, a second insulating layer, and a third insulating layer from the inside out. One of the current-conducting strips is located between the first and second insulating layers, with one end penetrating the first insulating layer and electrically connected to the battery stack. The other current-conducting strip is located between the second and third insulating layers, with one end penetrating both the second and first insulating layers and electrically connected to the battery stack. By layering the positive and negative current-conducting strips, the risk of discharge breakdown between the positive and negative electrodes is significantly reduced. The use of insulating layers to insulate and protect the positive and negative current-conducting strips and the entire battery stack makes the overall shape of the battery stack smoother after wrapping, facilitating its installation into a cylindrical casing, making it particularly suitable for high-voltage thermal batteries.

The utility model provides a device for inhibiting dendritic crystal growth of a zinc-air battery, and relates to the field of energy storage batteries. Comprising an electrolyte storage tank and a zinc-air battery, the electrolyte storage tank and the zinc-air battery are communicated to form a closed loop, electrolyte flows into the zinc-air battery from the electrolyte storage tank and then flows back to the electrolyte storage tank to realize circulation, the zinc-air battery is connected with a blue electricity testing system, and the blue electricity testing system performs charging and discharging testing. The diagonal flow state electrolyte disclosed by the utility model can effectively inhibit the growth of zinc dendrites, prolong the service life of the battery and reduce the short-circuit risk of the battery.

The one or more microtransponders may be attached to at least one component of the battery cell or a location in the battery cell and may be configured to provide digital information to the reader to enable the reader to identify the battery cell.