CN-122000505-A - Adjusting device and adjusting method for improving battery performance through adjustable magnetic field

CN122000505ACN 122000505 ACN122000505 ACN 122000505ACN-122000505-A

Abstract

The invention provides an adjusting device and an adjusting method for improving battery performance through an adjustable magnetic field, wherein the adjusting device comprises a permanent magnet module, a battery module and a control module, the permanent magnet module comprises a first magnetic pole piece, a plurality of second magnetic pole pieces and a conveyor belt, an adjustable magnetic field is formed between the first magnetic pole pieces and the second magnetic pole pieces, the battery module is arranged in the adjustable magnetic field, the control module comprises a magnetic field adjusting unit, a current detecting unit and a central control unit, the magnetic field adjusting unit is connected with the permanent magnet module, the speed of the conveyor belt is adjusted by the magnetic field adjusting unit to increase or decrease and change the movement direction of the conveyor belt, the current detecting unit acquires current data output by the battery module in real time and feeds the current data back to the central control unit, the central control unit generates an adjusting signal according to comparison with a preset current threshold value and sends the adjusting signal to the magnetic field adjusting unit to adjust parameters of the adjustable magnetic field.

Inventors

JIANG LIQUAN
Ma Renyan
YAO NA
XU WEILIN

Assignees

武汉纺织大学

Dates

Publication Date: 20260508
Application Date: 20260202

Claims (10)

1. The regulating device for improving the battery performance through the adjustable magnetic field is characterized by comprising a permanent magnet module, a battery module and a control module, wherein the permanent magnet module comprises a first magnetic pole piece, a plurality of second magnetic pole pieces and a conveyor belt, the polarities of the first magnetic pole piece and the second magnetic pole piece are arranged at intervals, the polarities of the first magnetic pole piece and the second magnetic pole piece are opposite, the second magnetic pole piece is uniformly fixed on the conveyor belt, an adjustable magnetic field is formed between the first magnetic pole piece and the second magnetic pole piece, the intensity of the magnetic field can be adjusted by regulating the speed of the conveyor belt, the battery module is arranged in the adjustable magnetic field, and the ion transfer direction in the battery module is parallel to the direction of the adjustable magnetic field; The control module comprises a magnetic field adjusting unit, a current detecting unit and a central control unit, wherein the magnetic field adjusting unit and the current detecting unit are connected with the central control unit; The magnetic field adjusting unit is connected with the permanent magnet module and is used for adjusting the speed of a conveyor belt in the permanent magnet module to increase or decrease the speed of cutting magnetic field lines, and changing the direction of the cutting magnetic field lines by changing the movement direction of the conveyor belt; The central control unit generates an adjusting signal according to comparison with a preset current threshold value, and sends a control signal to the magnetic field adjusting unit to adjust parameters of the adjustable magnetic field.
2. The device for improving battery performance by a controllable magnetic field according to claim 1, wherein the square conveyor belt has a side length of a and a circumference of 4a, is provided with a driving structure connected with the magnetic field adjusting unit, and is driven by the driving structure to operate at constant speed v at constant speed, the square conveyor belt is operated in clockwise or anticlockwise direction, and the operation period is set In any period, the motion track of the plurality of second magnetic pole pieces repeats the track of the previous period; the second magnetic pole pieces are uniformly structured, the second magnetic pole pieces are uniformly distributed along the edge of the square conveyor belt, and the magnetic moment of each second magnetic pole piece is as follows Corresponding magnetic field constant Wherein Is vacuum magnetic permeability; The first magnetic pole piece is fixed on a supporting plate outside the square conveyor belt, and the magnetic moment of the first magnetic pole piece Corresponding magnetic field constant A plane rectangular coordinate system is established by taking the central point O of the square conveyor belt as the origin of coordinates, wherein the horizontal right direction is the positive direction of the x axis, the vertical upward direction is the positive direction of the y axis, and the central coordinate of the first magnetic pole piece is (x, 0), wherein ; The effective calculation area of the magnetic flux is a circular area perpendicular to the connecting line of the second magnetic pole piece and the center of the first magnetic pole piece, the radius of the circular area is R, and the effective area And the center of the circular area is positioned on the central connecting line of the second magnetic pole piece and the first magnetic pole piece.
3. The device for improving battery performance by a controllable magnetic field of claim 2, wherein the second pole piece corresponding to the edge of the square conveyor belt has a linear density lambda, N is the total number of the second magnetic pole pieces, when The distribution of the second pole pieces may be quantified by integration along the circumference of the conveyor belt.
4. The device for improving battery performance by an adjustable magnetic field of claim 3, wherein the second magnetic pole piece and the first magnetic pole piece are bar magnets, and have magnetic moment directions in the same direction, and the axial magnetic fields of the second magnetic pole piece and the first magnetic pole piece in a far field region satisfy the following conditions R is the center distance to the corresponding second pole piece from the first pole piece.
5. The device for improving battery performance by a controllable magnetic field of claim 4, wherein the total magnetic flux of the permanent magnet module is at any time t The method meets the following conditions: Wherein, the Arc length coordinates of four sides of the square conveyor belt respectively, The center distances of the second magnetic pole piece and the first magnetic pole piece in the corresponding sides are respectively.
6. The device of claim 1, wherein the permanent magnet module further comprises an L-shaped base, a guide rail and a chuck structure, the guide rail is arranged on the horizontal plane of the L-shaped base, the chuck structure is arranged on the vertical plane of the L-shaped base, the first magnetic pole piece is arranged on the chuck structure, the battery module is arranged on the guide rail, and the position of the battery module on the guide rail is adjustable so as to change the distance between the battery module and the first magnetic pole piece and the second magnetic pole piece.
7. The device for improving battery performance by a controllable magnetic field of claim 6, wherein the chuck structure comprises a chuck base and a plurality of groups of clamping units, wherein the plurality of groups of clamping units are uniformly distributed along the circumferential direction of the chuck base, the plurality of groups of clamping units clamp the first magnetic pole piece, and each group of clamping units can independently move along the radial direction of the chuck base.
8. The device for improving battery performance by means of an adjustable magnetic field according to claim 2, wherein the driving structure comprises a bottom plate, a plurality of main driving wheels, a plurality of secondary driving wheels, a plurality of driven wheels and a plurality of secondary driving wheel adjusting units, wherein the plurality of main driving wheels and the plurality of driven wheels are arranged on the bottom plate, the plurality of main driving wheels and the plurality of driven wheels are uniformly distributed on the edge of the bottom plate, the secondary driving wheels are arranged between the adjacent main driving wheels and the driven wheels or between the adjacent two driven wheels, the conveyor belt is arranged on the main driving wheels, the secondary driving wheels and the plurality of driven wheels, and the positions of the secondary driving wheels on the bottom plate are adjusted by the driving wheel adjusting units, so that the tightness of the conveyor belt is adjusted.
9. A regulating method for improving the performance of a battery by a controllable magnetic field is characterized in that the regulating device for improving the performance of the battery by the controllable magnetic field according to any one of claims 1 to 8 is used and comprises the following steps: step 1, starting a battery module to enter a working state; Step 2, after the current value of the battery module is stabilized, setting a target output current value of the battery module through a central control unit of the control module; Step 3, the current detection unit collects actual output current data of the battery module in real time and transmits the actual output current data to the central control unit; Step 4, the central control unit compares the actual output current data with the target output current value, judges whether deviation exists, and maintains the adjustable magnetic field of the current permanent magnet module unchanged if the actual output current value is equal to the target output current value; step 5, the central control unit generates a magnetic field adjusting signal according to the deviation value of the actual output current value and the target output current value, wherein the magnetic field adjusting signal comprises at least one of the moving speed of the conveyor belt and the moving direction of the conveyor belt; step 6, the magnetic field adjusting unit receives the magnetic field adjusting signal and adjusts the moving speed and/or the moving direction of the conveyor belt to adjust the magnetic field parameters; And 7, repeating the steps 2-6 until the deviation between the actual output current data acquired by the current detection unit and the target output current value is within a preset error range.
10. The method for improving battery performance by a controllable magnetic field according to claim 9, wherein step 5 comprises the steps of: And 5.1, after the magnetic field adjusting signal is generated, the central control unit checks the magnetic field adjusting signal, and checks whether the magnetic field adjusting signal accords with the safe operation range of the permanent magnet module, checks the matching property of the magnetic field adjusting signal and the current deviation, ensures that the adjusting direction is correct, and sends the magnetic field adjusting signal to the magnetic field adjusting unit after the checking.

Description

Adjusting device and adjusting method for improving battery performance through adjustable magnetic field Technical Field The invention relates to the technical field of electrochemical application, in particular to a regulating device and a regulating method for improving battery performance through a controllable magnetic field. Background With the growth of global population and the acceleration of industrialization, the traditional fossil energy is rapidly consumed, the problem of environmental pollution is increasingly serious, and the development of energy safety and sustainability is a global focus of attention. Under the 'two carbon' strategic background, the development of a novel energy storage technology with high energy density, low cost and environmental friendliness accords with the national strategy, and the zinc-air battery is paid attention again under the background of the era. However, zinc-air batteries face challenges such as high catalyst cost, long cycle life, small current output, etc., and large-scale applications are still in demand. Regulating the output current of a zinc-air battery is a common method for improving the zinc-air battery nowadays. At present, the regulation of the output current of the zinc-air battery mainly depends on an external circuit means, but the mode has the defects of increased volume and cost, higher energy loss, improved system complexity, reduced reliability and the like, and is especially not suitable for portable and wearable devices sensitive to volume and weight. In addition, the existing few indirect adjustment attempts have the problems of narrow adjustment range, low response speed, poor stability, low adjustment precision and the like, and cannot meet the actual application demands. In the prior art, a related technical scheme for directly regulating and controlling the output current of the zinc-air battery by utilizing the action of a magnetic field does not appear, and the regulating and controlling potential of the magnetic field on the internal electrochemical reaction process of the zinc-air battery and the ion transmission process in electrolyte is not realized. The core electrochemical reaction process of the zinc-air battery relates to electron transfer and ion migration, and the magnetic field is used as an external action field which can be applied in a non-contact manner, is easy to accurately regulate and control and has no damage to the battery structure, and the charge transmission and reaction dynamics process inside the battery can be influenced theoretically through Lorentz force, magnetohydrodynamic effect and the like, so that the flexible regulation of output current is realized. In summary, the present invention aims to provide a device for improving the performance of a zinc-air battery by changing a magnetic field, which has the advantages of long endurance, low cost, rapid response, rapid detection, low background false detection rate, etc. Disclosure of Invention The invention aims to overcome the defects and shortcomings of the prior art and provide an adjusting device and an adjusting method for improving the performance of a battery through an adjustable magnetic field. The utility model provides an adjustable magnetic field promotes adjusting device of battery performance through adjustable magnetic field, includes permanent magnet module, battery module and control module, the permanent magnet module includes first magnetic pole piece, polylith second magnetic pole piece and conveyer belt, first magnetic pole piece with the polarity interval of second magnetic pole piece sets up, first magnetic pole piece with the polarity of second magnetic pole piece is opposite, the second magnet piece evenly fixes on the conveyer belt, adjustable magnetic field is formed between first magnetic pole piece and the second magnetic pole piece, but through adjusting the speed of conveyer belt comes adjustable magnetic field intensity, the battery module is arranged in adjustable magnetic field, ion transfer direction is parallel to adjustable magnetic field direction in the battery module; The control module comprises a magnetic field adjusting unit, a current detecting unit and a central control unit, wherein the magnetic field adjusting unit and the current detecting unit are connected with the central control unit; The magnetic field adjusting unit is connected with the permanent magnet module and is used for adjusting the speed of a conveyor belt in the permanent magnet module to increase or decrease the speed of cutting magnetic field lines, and changing the direction of the cutting magnetic field lines by changing the movement direction of the conveyor belt; The central control unit generates an adjusting signal according to comparison with a preset current threshold value, and sends a control signal to the magnetic field adjusting unit to adjust parameters of the adjustable magnetic field. In one embodiment, the conveyor bel