504 results about "Battery terminal" patented technology

The present inventions, in one aspect, are directed to techniques and / or circuitry to applying a charge pulse to the terminals of the battery during a charging operation, measure a plurality of voltages of the battery which are in response to the first charge pulse, determine a charge pulse voltage (CPV) of the battery, wherein the charge pulse voltage is a peak voltage which is in response to the first charge pulse, determine whether the CPV of the battery is within a predetermined range or greater than a predetermined upper limit value and adapt one or more characteristics of a charge packet if the CPV is outside the predetermined range or is greater than a predetermined upper limit value.

The invention discloses a low-complexity, high-precision and high-robustness battery state of charge estimation method and system, relates to the field of battery state of charge estimation, and aims to solve the problems of high cost, to-be-improved precision, poor robustness and the like of the existing battery state of charge estimation technology. According to the technical key points, firstly, a second-order equivalent circuit model is established through an off-line experiment, an off-line parameter identification means is adopted, the magnitude difference between to-be-identified model parameters and fitting voltage is reduced, and the fitting precision is improved; and fitting the relationship between the model parameters obtained by the off-line parameter identification and the SOC, and fitting an OCV-SOC relationship curve by using the third-order Gaussian after the fitting points are added. A battery end voltage and a current value measured by a sensor in real time are input into an ECM model for calculating an OCV value, sliding window filtering of variable weight distribution is carried out on the calculated OCV value to smooth a curve and reduce errors, a filtered result is fitted through an OCV-SOC relation curve to obtain an SOC value, and the SOC value is used as an observation value of subsequent Kalman filtering. A predicted value is calculated by using an ampere-hour integral method, and a current model parameter is fitted by using the priori value in combination with a relationship between the model parameter and the SOC. And finally, Kalman filtering is carried out on the two to obtain a posterior SOC value.

The invention provides a lithium ion battery charge state estimation method and device, equipment and a medium, and the method comprises the steps: obtaining a battery end voltage measurement value and a platform interval query table collected at a current moment when a charge state estimation request for a to-be-estimated battery is received, and determining a prior charge state estimation value; determining a platform interval attribute result corresponding to the priori state-of-charge estimation value; adjusting an observation noise covariance matrix based on the platform interval attribute result, the real-time slope of the open-circuit voltage-state-of-charge relation curve at the priori state-of-charge estimation value and the battery working current change rate; and updating the Kalman gain based on the adjusted observation noise covariance matrix, correcting the priori state-of-charge estimated value by using the updated Kalman gain to obtain the target state-of-charge estimated value at the current moment, and obtaining the target state-of-charge estimated value at the current moment through platform interval identification and a multi-parameter adaptive adjustment mechanism. And the estimation precision and stability of the state of charge of the lithium ion battery are improved.

The utility model discloses a tool for polishing and oiling a storage battery terminal, which comprises a driving motor, a mounting seat, a grinding wheel, a grinding wheel, a grinding wheel, a grinding wheel, a grinding wheel and a grinding wheel, wherein the mounting seat is fixedly connected to an output shaft of the driving motor; the pneumatic clamping jaw is fixed to the mounting base, and a polishing brush is detachably connected to a jaw body of the pneumatic clamping jaw. The oiling valve is fixed below the mounting seat and has an avoiding distance with the polishing brush on the claw body, an avoiding hole for a battery terminal to enter is formed in the middle of the bottom side of the oiling valve, a plurality of valve element holes are formed in a valve body of the oiling valve, one end of each valve element hole is communicated with the avoiding hole, a valve element is axially and slidably connected into the valve element hole, and one end, close to the avoiding hole, of the valve element is an oiling end; the oil way hole communicated with the side wall of the valve element hole is formed in the valve body, the battery terminal supports the valve element and promotes the valve element to move in the axial direction, the movement of the valve element controls the communication relation between the oil way hole and the receding hole, the anti-oxidation oil in the oil way hole wets the oiling end and completes the oiling process of the battery terminal, and the oiling device is integrated in design and high in machining efficiency.

The invention relates to the technical field of energy storage battery health state evaluation, and provides a low-voltage station area battery capacity calibration and health factor extraction method, which comprises the following steps: acquiring battery end voltage, current, temperature and SOC data in real time; a complete charge-discharge cycle is automatically divided according to a preset rule, and the equivalent discharge capacity is calculated through an ampere-hour integral; constructing an exponential type working condition correction factor based on the circulating temperature and the root-mean-square current to correct the capacity, and obtaining a dynamic calibration capacity in a sliding window by adopting exponential weight or weighted least square fitting; meanwhile, multi-dimensional health factors are extracted from voltage, current, temperature and SOC signals, and comprehensive health characterization is formed through adaptive weighted fusion in a data driving mode. According to the method, online and dynamic capacity estimation and multi-dimensional health assessment of the energy storage battery in the transformer area under the complex and unsteady working condition are achieved, the capacity calibration precision and the life prediction reliability are remarkably improved, and intelligent operation and maintenance and risk early warning are facilitated.

In a described example, a system includes a bus, a primary coil, first battery terminals, and second battery terminals. A first circuit is coupled between the bus and the primary coil. A first secondary coil is DC-isolated from the primary coil. A second circuit is coupled between the first secondary coil and the first battery terminals. A second secondary coil is DC-isolated from the primary coil. A third circuit is coupled between the second secondary coil and the second battery terminals. A controller is configurable to control the second circuit to transfer energy from the first battery terminals through the first secondary coil to the primary coil and control the first and third circuits to transfer energy from the primary coil to the second secondary coil and provide energy to the second battery terminals.

A battery system includes a battery module; a cell monitor controller (CMC) including a battery monitoring integrated circuit (BMIC) that monitors a cell voltage of each of the plurality of battery cells based on a signal received from the plurality of input terminals; and a branch board including a plurality of wirings that provide a power path connecting the plurality of battery terminals and the plurality of input terminals of the CMC, and a plurality of switches that have one end connected to one of each of a plurality of adjacent two wirings included in the plurality of wirings and the other end connected to the other of each of the two wirings.

The present invention relates to a battery module (1) for a high-voltage battery of an electrically or partially electrically powered motor vehicle, wherein the battery module (1) comprises at least one first battery cell (10) and at least one second battery cell (20), wherein each battery cell (10, 20) has a first cell terminal (11) with a first polarity and a second cell terminal (21) with a second polarity, wherein the battery module (1) comprises a contact carrier plate (2), wherein the contact carrier plate (2) has at least one support rib (3) and adjacent to the support rib (3) a first through-slot (4) and a second through-slot (5), wherein one of the cell terminals (11, 21) of the first battery cell (10) passes through the first through-slot (4) and is bent towards the support rib (3), wherein one of the cell terminals (11,21) of the second battery cell (20) passes through the second through-slot (5) and is bent towards the support rib (3), so that one cell terminal (11, 21) of the first battery cell (10) and one cell terminal (11, 21) of the second battery cell (20) overlap on a contacting side of the contacting carrier plate (2) facing away from the multiple battery cells (10, 20), wherein the battery module (1) has a heat buffer element (50).

A power tool includes a housing, an electric motor disposed within the housing, a first printed circuit board assembly configured to selectively supply electric current to the electric motor, causing the electric motor to activate and drive a tool element, and a battery receptacle configured to support a removable battery pack. The battery receptacle has a battery terminal block electrically connected to the battery pack to supply electrical current to the first printed circuit board assembly. The power tool further includes a second printed circuit board assembly electrically connected between the first printed circuit board assembly and the battery terminal block. The second printed circuit board assembly has a fuse and a thermistor configured to detect a temperature of the fuse.

The present invention relates to a battery module (1) for a high-voltage battery of an electrically or partially electrically powered motor vehicle, wherein the battery module (1) comprises at least one first battery cell (10) and at least one second battery cell (20), wherein each battery cell (10, 20) has a first cell terminal (11) with a first polarity and a second cell terminal (21) with a second polarity, wherein the battery module (1) comprises a contact carrier plate, wherein the contact carrier plate has at least one support rib (3) and adjacent to the support rib (3) a first through-slot (4) and a second through-slot (5), wherein one of the cell terminals (11, 21) of the first battery cell (10) passes through the first through-slot (4) and is bent towards the support rib (3), wherein one of the cell terminals (11,21) of the second battery cell (20) passes through the second through-slot (5) and is bent towards the support rib (3), such that one cell terminal (11, 21) of the first battery cell (10) and one cell terminal (11, 21) of the second battery cell (20) overlap on a contacting side of the contacting carrier plate (2) facing away from the battery cells (10, 20), wherein one cell terminal (11, 21) of the first battery cell (10) and one cell terminal (11, 21) of the second battery cell (20) are electrically connected to each other in the area of ​​their overlap, wherein the support rib (3) has a heat buffer element (50).

The invention discloses a thermoelectric coordination regulation system for a new and old battery mixing station, and relates to the technical field of thermoelectric coordination regulation, and the system comprises a data collection module which collects the surface contact temperature data of a battery, the instantaneous fluctuation data of the terminal voltage of the battery and the state of charge in the new and old battery mixing station in real time; the early warning analysis module is used for dynamically analyzing the battery surface contact temperature data and the battery end voltage instantaneous fluctuation data in the continuous sliding time window to obtain a fractal dimension standard exceeding early warning signal; the risk modeling module is used for constructing a three-dimensional target vector by adopting a multi-target cooperative computing framework based on the fractal dimension standard exceeding early warning signal, the battery surface contact temperature data, the battery end voltage instantaneous fluctuation data and the state of charge; the decision regulation and control module is used for performing multi-target decision on the three-dimensional target vector through a tabu search algorithm to generate three types of regulation and control instruction sets; the taboo search mechanism breaks through the dimension coupling constraint of the multi-objective decision, and achieves the dynamic optimization of the thermal-electric regulation and control strategy.

A battery pack may include a housing including a support portion connectable to and supportable by an electrical device, the support portion defining a channel operable to receive a projection on the electrical device, the support portion including a plastic material molded to define the channel, and a metal material molded in the plastic material, the metal material defining a C-shaped portion around the channel. A battery pack may include a plurality of battery cells supported by the housing. A battery pack may include a battery terminal electrically connected to the plurality of battery cells and connectable to a terminal of the electrical device.

The invention provides a method for estimating the state of charge of a marine lithium iron phosphate battery based on model compensation and improved Kalman filtering. The method comprises the following steps: acquiring voltage and current data of the marine lithium iron phosphate battery; constructing a novel compensation model taking an improved Play hysteresis operator as a core, and quantifying the hysteresis voltage of the battery; on the basis of a second-order RC equivalent circuit model, hysteresis voltage is used as voltage input of an ideal voltage source in the battery and is injected into model internal resistance and capacitance parameter values obtained through identification at different temperatures, and an equivalent circuit model considering hysteresis at different temperatures is formed; performing parameter identification on the equivalent circuit model with hysteresis compensation by adopting an adaptive forgetting factor recursive least square method, and adaptively optimizing a forgetting factor and an initial parameter value, so that an error between a terminal voltage value simulated by the equivalent circuit model and an actual voltage value is minimum; and carrying out joint estimation on the battery end voltage and the SOC by adopting an adaptive square root unscented Kalman filtering algorithm, so that the error of the end voltage is minimum, and an estimated value of the battery SOC is obtained.

The invention discloses an inventory battery state monitoring method and device, electronic equipment and a storage medium, and relates to the power supply and matching technical field or other related technical field, and the method comprises the steps that a battery terminal collects the state data of the battery terminal based on a low power consumption monitoring mechanism, and uploads the state data to a Bluetooth gateway; the Bluetooth gateway performs data conversion and uploads a transmission protocol data packet to a cloud platform; and the cloud platform analyzes the transmission protocol data packet to obtain battery state data, inputs the battery state data to the state detection model, carries out abnormal state identification and state trend prediction on each battery terminal through the state detection model, generates alarm information according to identification and prediction conditions, and sends the alarm information to the operation and maintenance terminal. According to the invention, the technical problems of low monitoring efficiency and high loss due to the fact that battery monitoring depends on wired connection for one-to-one monitoring in the prior art are solved.

One aspect of the present invention relates to a method (100) for managing the available state of charge (SOCDisp) of an aircraft battery, the method comprising the steps of: - obtaining (110) a first intermediate available state of charge (SOCDisp1) from a battery capacity table based on battery temperature; - obtaining (120) a second intermediate available state of charge (SOCDisp2) based on a stored state of charge, a first instantaneous voltage, an instantaneous open-circuit voltage, and a predetermined minimum permissible voltage; - measuring (130) a second instantaneous voltage Ucell across the battery terminals; and - determining (140) an available state of charge (SOCDisp) based on the first intermediate available state of charge (SOCDisp1), the second intermediate available state of charge (SOCDisp2), and the measured (130) second instantaneous voltage Ucell.

The invention relates to the technical field of charging pile charging control, in particular to a flexible charging regulation and control system and method for a charging pile, and the method comprises the steps: obtaining real-time service parameters of the charging pile; calculating a stress accumulation item and a stress dissipation item; the equivalent lithium ion concentration stress of the current period is obtained through updating in combination with the stress accumulation item and the stress dissipation item; calculating a stress suppression item; generating a correction function; generating a dynamic current limit value by combining the stress suppression item, the correction function and a preset reference maximum allowable current; resolving a request current based on the power grid power instruction and the battery terminal voltage; generating a scheduling feasibility index in combination with the request current and the dynamic current limit value; according to the scheduling feasibility index, hierarchical power correction is executed, and actual issuing power is output; according to the invention, the operation safety of the battery is greatly improved, and the overall value of battery assets is greatly prolonged.

Provided are a mold kit, a self-piercing engagement method, a battery terminal contact assembly, and a battery. The mold kit comprises a first mold and a second mold. A first component is self-pierced into a second component by means of first-stage engagement using the first mold of the mold kit, so as to achieve pre-engagement therebetween; and the first component is further self-pierced into the second component by means of second-stage engagement using the second mold of the mold kit, so that a fixed connecting relationship having high firmness and strong stability is achieved between the first component and the second component. In particular, when the hardness of a material of the first component is equal to or less than that of a material of the second component, a fixed connecting relationship having the above properties can still be achieved between these two components. Moreover, the defects and problems caused by using welding to achieve a fixed connecting relationship between a terminal post and an adapter piece of a battery can be completely eliminated.

The invention relates to a contacting system (5) for individual battery cells (2) of a battery module (1) with cell connectors (8, 10, 11) for contacting the cell terminals (3, 4) of at least two of the individual battery cells (2) of the battery module (1). The contacting system according to the invention is characterized in that at least one of the cell connectors (8, 10, 11) has an internal cooling channel (9) for receiving a cooling medium.

The present invention provides a battery pack that can prevent the refrigerant from coming into contact with the battery cells. [Solution] A battery pack equipped with a battery cell 230 comprises a housing chamber wall portion 203 which is the wall of a housing chamber in which the battery cell 230 is housed, and a cooler 250 which is in contact with the outer surface of the housing chamber wall portion 203. The battery cell 230 is equipped with cell terminals 231, and the cell terminals 231 are in contact with the inner surface of the housing chamber wall portion 203. Since the battery cell 230 is in contact with the cooler 250 via the housing chamber wall portion 203, the battery cell 230 is cooled by the cooler 250. The battery cell 230 is housed in the housing chamber, while the cooler 250 is outside the housing chamber. Therefore, even if the refrigerant flowing through the cooler 250 leaks out, it is possible to prevent the leaked refrigerant from coming into contact with the battery cell 230.

The invention relates to the technical field of battery detection, in particular to an open-circuit voltage fitting method and device, electronic equipment and a storage medium, and the method comprises the steps: obtaining test data obtained through the pulse charging and discharging test of a battery; according to the test data, a first model parameter in a target fitting model is assigned, in the target fitting model, a battery end voltage is equal to the superposition of an ohm voltage drop, a charge transfer polarization voltage drop, a diffusion polarization voltage drop and an open-circuit voltage, and a second model parameter in the target fitting model is assigned; the first model parameters comprise ohmic impedance in the ohmic voltage drop, reaction impedance in the charge transfer polarization voltage drop and diffusion impedance in the diffusion polarization voltage drop; and on the basis of the target fitting model, open-circuit voltages of the battery in different charge states are obtained, and the different charge states correspond to different battery terminal voltages. Therefore, the estimation speed of the open-circuit voltage and the prediction accuracy of the open-circuit voltage are improved by adopting a pulse charging and discharging test and model fitting mode.

The utility model belongs to the field of storage batteries, and particularly relates to a half-height storage battery lead pole which comprises a lead pole body, a lead pipe assembly is arranged on the outer side of the lead pole body and comprises a lower lead pipe and an upper lead pipe, the upper lead pipe is mounted on the lower lead pipe through a detachable structure, and the lower lead pipe is mounted on the lower lead pipe through a detachable structure. A plurality of first threaded holes are formed in the inner wall of the lower lead pipe, locking screws are installed in the first threaded holes in a threaded mode, the locking screws are matched with the lead pole body, a rotary knob is fixedly installed at one end of each locking screw, a plurality of positioning grooves are formed in the bottom of the upper lead pipe, a plurality of trapezoidal positioning seats are fixedly installed at the top of the lower lead pipe, and the trapezoidal positioning seats are fixedly installed in the positioning grooves. And the trapezoidal positioning seats are matched with the corresponding positioning grooves, and a fixing groove is formed in one side of each trapezoidal positioning seat. The storage battery terminal post is reasonable in design, and the diameter of the storage battery terminal post can be increased through the matching of the lead terminal post and the lead pipe assembly, so that the storage battery terminal post can bear larger current output.

The invention relates to a rivet-free riveting device for a cylindrical battery shell. The rivet-free riveting device comprises a lower die; the upper die comprises a plurality of male dies, the male dies are used for stretching into the battery shell to extrude the inner end of the battery pole so as to rivet the battery pole onto the battery shell, and a chamfer is arranged at the periphery of the working end of each male die; the extruding device is used for extruding the inner end of the battery pole to enable the inner end of the battery pole to be expanded outwards by an angle, and the angle refers to the angle that the position of the expanded inner end of the battery pole deviates from the original position of the battery pole; the multiple male dies enable the expanding angle of the inner end of the battery pole to be increased in sequence towards the outer side, and at least one male die enables the expanding angle of the inner end of the battery pole to be larger than 90 degrees. According to the rivet-free riveting device for the cylindrical battery shell, the cylindrical battery shell and the pole column are positioned through the female die assembly, the cylindrical battery shell is supported in a floating mode, and the battery shell is riveted through continuous angle change of the multiple male dies.

The invention relates to a charging point (1) for an electric vehicle (100), comprising: - a support (2) and - a charging terminal (3) designed for connection to a battery terminal (5) of the electric vehicle (100) such that the contact plane between the two terminals is vertical, characterized in that the charging point comprises a housing (6) surrounding the support (2), wherein the housing has a front opening facing the charging terminal (3) and the housing (6) is movable relative to the support (2) in a direction perpendicular to the contact plane between a neutral position, in which the opening is located at a neutral distance relative to the contact plane, and a charging position, in which the opening is located at a charging distance relative to the contact plane, the charging distance being smaller than the neutral distance.

The invention provides a hybrid power system for a generator set. Current detection is arranged at a battery terminal of a step-down charge channel and a step-up discharge channel of a bidirectional module, and voltage detection is arranged at two terminals of a diode to detect whether the diode has a voltage drop to determine whether a battery is in a charge state or non-discharge state; and whether the battery is in a charge state is determined by the current detection. A generator set in a non-operating state can be aroused to charge the battery, and the charge / discharge state of the battery can be effectively monitored and controlled.

The utility model discloses a long-life storage battery pole sealing structure, and relates to the technical field of battery components. The device comprises a movable sleeve, a rotating block, a fixed plate and a springback assembly, an external thread cylinder is fixed at the top end of the movable sleeve, an internal thread cylinder is in threaded connection with the peripheral side of the external thread cylinder, the rotating block is fixed at the top end of the internal thread cylinder, the fixed plate is fixed in the center of the top of the rotating block, and the springback assembly is fixed at the bottom of the rotating block on the outer side of the internal thread cylinder. A first pressure spring is fixed to the bottom of the rotating block. According to the utility model, the movable sleeve, the rotating block, the fixed plate and the rebound assembly are arranged, so that the problems that the sealing service life of the storage battery pole sealing structure is not long enough, and poor contact between the pole and a power connection structure is easily caused are solved, and the storage battery pole sealing structure has the advantages that the sealing service life is longer; and poor contact between the pole and the power connection structure is not easily caused.

The present invention relates to electrolyte repair, and discloses a method for repairing an unbalanced battery electrolyte and a method for determining the repair endpoint thereof. The repair method comprises: S1, mixing the positive and negative electrolytes of the unbalanced battery to obtain a mixed electrolyte I; preparing a pentavalent ion suspension of metal cations contained in the mixed electrolyte I; S2, mixing the mixed electrolyte I and the pentavalent ion suspension to obtain a mixed electrolyte II; S3, dividing the mixed electrolyte II into two parts, one of which serves as the repair anode electrolyte and the other as the repair cathode electrolyte, and performing constant current electrolysis. When the battery terminal voltage undergoes a step and the first-order differential of the terminal voltage is maximized, the repair endpoint is reached. This repair method has a good repair effect and can improve the utilization efficiency of the unbalanced battery electrolyte.

The invention relates to a terminal (2, 3) for a battery cell (1) intended to be electrically connected to a current collector (10) of the battery cell (1). The terminal (2, 3) comprises a plate (71) and a cross-shaped indentation (73) projecting from the plate (71). The indentation (73) is designed to cooperate by complementary shape with a counter-indentation (63) delimited by the spacer (15), in such a way as to block relative translation and rotation between the terminal (2, 3) and the spacer (15). The invention also relates to an assembly (5) and a battery cell (1) comprising such a terminal (2, 3). Figure 1

The utility model provides a stamping device and stamping equipment for battery terminal production. The stamping device for battery terminal production comprises a first upper punch, a second upper punch and a lower die assembly, the lower die assembly comprises a lower die base, a first insert and a second insert, and the lower die base is provided with a first stamping structure and a second stamping structure which are arranged adjacently. The first stamping structure is provided with a first embedding groove, a step pre-forming arc groove and a first movable channel which are communicated in sequence, the first embedding groove is used for placing a metal block, the groove wall of the step pre-forming arc groove is an arc surface, and the first insert is movably arranged in the first movable channel; the first insert and the inner wall of the first movable channel jointly form a first end groove, and the groove wall of the step pre-forming groove is an arc surface, so that the step of the middle piece formed through first-time stamping is an arc surface to play a guiding role, and the situation that burrs are formed at the step of the terminal due to first-time stamping is avoided.

A battery cell according to one embodiment of the present disclosure includes an electrode assembly in which a first electrode, a second electrode, and a separator interposed therebetween are wound around a winding axis, wherein the first electrode includes a first uncoated portion that is not coated with an active material layer at a long side end along the winding direction and is exposed to the outside of the separator, and at least a part of the first uncoated portion is used as an electrode tab in itself; a battery housing including an opening on one side and configured to accommodate the electrode assembly through the opening; a cell terminal configured to pass through a surface positioned on an opposite side of the opening of the battery housing; and a current collector including a first uncoated portion coupling part disposed on one side of the electrode assembly and configured to be welded to the first uncoated portion, a terminal coupling part spaced apart from the first uncoated portion coupling part and configured to be welded to the cell terminal, and a connection area provided between the first uncoated portion coupling part and the terminal coupling part, wherein the connection area includes a plurality of slits spaced apart at regular intervals in the circumferential direction and having a convex shape toward an outer side in the radial direction.

Disclosed herein is a device for magnetic welding of battery boils comprising a coil holder; where the coil holder comprises one or more electrical coils that are operative to be activated by an electrical current; a foil holding fixture; wherein the foil holding fixture comprises a plurality of arms; wherein each pair of adjacent arms is operative to move towards one another to crimp a plurality of battery foils; and an anvil; wherein the anvil is operative to support a battery tab and the battery foils.