WO2018170672A1

WO2018170672A1 - Method and system for activating lead-acid battery

Info

Publication number: WO2018170672A1
Application number: PCT/CN2017/077281
Authority: WO
Inventors: 彭冠勇; 夏春
Original assignee: 深圳中兴力维技术有限公司
Priority date: 2017-03-20
Filing date: 2017-03-20
Publication date: 2018-09-27
Also published as: CN108064428A; CN108064428B

Abstract

Disclosed is a method and system for activating a lead-acid battery. The method comprises: marking a battery cell as a first battery cell when a deviation between an internal resistance value of the cell in a battery pack and an average internal resistance reference value of the battery pack is greater than a first preset value, or a deviation between the internal resistance value of the cell and an initial internal resistance value of the cell is greater than a second preset value; determining whether the first battery cell exists in the battery pack; if yes, determining whether the battery pack is in a floating charge state; and if yes, performing an activation operation on the first battery cell, the activation operation comprising at least one activation treatment, and the activation treatment comprising circularly recharging and discharging the first battery cell multiple times by using a current of a preset frequency and a preset time sequence within a preset time period. The present invention does not need to de-energize a load of a battery pack during an activation operation, and does not affect other normal cells, thereby effectively improving the power supply reliability of an overall machine room base station.

Description

Lead acid battery activation method and system thereof

[0001] The present invention relates to the technical field of improving lead-acid batteries, and more particularly to a method for activating a lead-acid battery and a system thereof.

Background technique

[0002] At present, the common practice of battery management and maintenance is to perform voltage monitoring on the battery cells, and periodically perform large current charge and discharge activation on the battery pack to ensure battery life. However, this large current activation method requires first powering down the battery pack load and then discharging and charging the battery pack. This consumes a long time and requires another set of backup battery packs to ensure that the UPS is continuously powered and needs to be controlled manually. And monitoring.

technical problem

[0003] The main object of the present invention is to provide a lead-acid battery activation method and a system thereof, which are designed to automatically monitor the battery state and actively complete the activation operation for each battery cell, thereby eliminating the need for battery maintenance. Power off the load on the battery pack.

Problem solution

Technical solution

[0004] In order to achieve the above object, the present invention provides a method for activating a lead-acid battery, which includes:

[0005] a deviation between a cell internal resistance value of the battery pack and the average internal resistance reference value of the battery pack is greater than a first preset value, or a cell whose internal resistance value is different from a first internal resistance value by a second preset value The monomer is labeled as a first battery cell;

[0006] determining whether there is a first battery cell in the battery pack;

[0007] If yes, determining whether the battery pack is in a floating state;

[0008] If yes, performing an activation operation on the first battery cell, the activation operation includes at least one activation process; the activation process includes using a preset frequency and a preset sequence current within a preset length The first battery cell is charged and discharged a plurality of times.

[0009] Optionally, before performing the activating operation on the first battery cell, the method further includes: determining whether the first battery cell is separated from the first activation threshold by a first predetermined threshold If yes, then The step of performing an activation treatment on the first battery cell is performed.

[0010] Optionally, the activation process specifically includes:

[0011] obtaining a cell temperature of the first battery cell, determining whether the cell temperature is less than a temperature preset value; [0012] if not, using the preset frequency and the current of the first activation sequence Performing charging and discharging of the first battery cell a plurality of times;

[0013] if yes, determining whether the cell voltage of the first battery cell is lower than a corresponding float voltage;

[0014] if yes, charging and discharging the first battery cell by using the predetermined frequency and the current of the second activation sequence;

[0015] If not, the first battery cell is circulated and charged multiple times by using the preset frequency and the current of the third activation sequence.

[0016] Optionally, wherein:

[0017] The first activation sequence includes charging time T1=600-(t-t0)*a, waiting for the daytime T2=100+(t-t0)*a, and discharging the daytime T3=200ms, again Waiting for the time T4=100ms; wherein t is the monomer temperature of the first battery cell, and to is the preset temperature value;

[0018] The charging cycle of the second activation sequence, waiting for the daytime, discharging the daytime, and waiting for the daytime again are 90

0ms, 10ms, 50ms, 40ms;

[0019] The charging cycle of the third activation sequence, waiting for the daytime, discharging the daytime, and waiting for the daytime again are 50

0ms, 100ms, 300ms, 100ms.

[0020] Optionally, the activating operation of the first battery cell each time the activation process comprises: [0021] refreshing the first battery cell after each activation process is completed Internal resistance value of the monomer;

[0022] if the deviation between the refreshed monomer internal resistance value and the monomer internal resistance value of the initial operation of the activation operation is less than the third preset value, ending the activation operation; or

[0023] If the length of the activation operation reaches a second predetermined threshold, the activation operation is ended.

[0024] In addition, in order to achieve the above object, the present invention also provides a lead-acid battery activation system, which includes

[0025] the control platform is configured to set a deviation between a single internal resistance value of the battery pack and the average internal resistance reference value of the battery pack to be greater than a first preset value, or a deviation between a single internal resistance value and an initial internal resistance value thereof is greater than a second The preset battery cell is labeled as the first battery cell; [0026] the control platform is further configured to determine whether a first battery cell is present in the battery pack;

[0027] a monitoring module, configured to perform an activation operation on the first battery cell, the activation operation including at least one activation process; the activation process includes adopting a preset frequency and a preset sequence within a preset length The current charges and discharges the first battery cell a plurality of times.

[0028] Optionally, the control platform is further configured to determine whether the first battery cell is separated from the first activation threshold by a first preset threshold; if not, the activation operation is not allowed to be issued. The instruction or the instruction to end the activation operation.

[0029] Optionally, the control platform is further configured to:

[0030] obtaining a cell temperature of the first battery cell, determining whether the cell temperature is less than a temperature preset value; [0031] if not, using the preset frequency and the current of the first activation sequence Performing charging and discharging of the first battery cell a plurality of times;

[0032] If yes, determining whether the cell voltage of the first battery cell is lower than a corresponding float voltage;

[0033] if yes, charging and discharging the first battery cell by using the predetermined frequency and the current of the second activation sequence;

[0034] If not, the first battery cell is circulated and charged multiple times using the preset frequency and the current of the third activation sequence.

[0035] Optionally, wherein:

[0036] The first activation sequence includes charging time T1=600-(t-t0)*a, waiting for the daytime to be T2=100+(t-t0)*a, and discharging the daytime T3=200ms, again Waiting for the time T4=100ms; wherein t is the monomer temperature of the first battery cell, and to is the preset temperature value;

[0037] the charging cycle of the second activation sequence, waiting for the daytime, discharging the daytime, and waiting again for the daytime are 90

0ms, 10ms, 50ms, 40ms;

[0038] The charging cycle of the third activation sequence, waiting for the daytime, discharging the daytime, and waiting again for the daytime are 50

0ms, 100ms, 300ms, 100ms.

[0039] Optionally, the monitoring module is further configured to refresh the internal resistance value of the first battery cell after each activation process is completed;

[0040] the control platform is further configured to determine whether the deviation between the refreshed internal resistance value and the single internal resistance value of the initial operation of the activation operation is less than a third preset value, and if yes, issue an instruction to end the activation operation; Or judge Whether the length of the activation operation is reached to reach a second predetermined threshold, and if so, an instruction to end the activation operation is issued.

Advantageous effects of the invention

Beneficial effect

[0041] The method and system for activating a lead-acid battery proposed by the present invention are only for a certain monomer that needs to be activated, and do not affect other battery cells, and the current unified discharge charging method for the entire battery is more scientific and reasonable. When the battery is used for a period of time, the capacity becomes smaller and the life is shortened.

Brief description of the drawing

DRAWINGS

1 is a schematic flow chart of a method for activating a lead-acid battery according to an embodiment of the present invention;

2 is a schematic flow chart of a method for activating a lead-acid battery according to another embodiment of the present invention;

3 is a schematic flow chart of an activation operation according to an embodiment of the present invention;

4 is a schematic flow chart of an activation process according to an embodiment of the present invention;

5 is a schematic diagram of a first activation sequence according to an embodiment of the present invention;

6 is a schematic diagram of a second activation sequence according to an embodiment of the present invention;

7 is a schematic diagram of a third activation sequence according to an embodiment of the present invention;

8 is a schematic structural view of a lead-acid battery activation system according to an embodiment of the present invention;

9 is a schematic structural diagram of a charging and discharging principle of a monitoring module according to an embodiment of the present invention;

[0051] The implementation, functional features, and advantages of the present invention will be further described with reference to the accompanying drawings.

Embodiments of the invention

[0052] It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following description, the use of suffixes such as "module", "component" or "unit" set to indicate an element is merely for the purpose of facilitating the description of the present invention, and does not have a specific meaning per se. Therefore, "module" and "part" can be used in combination.

[0054] As shown in FIG. 1, a first embodiment of the present invention provides a method for activating a lead-acid battery, comprising the steps of: [0055] Sl l, start;

[0056] S12. The deviation between the internal resistance value of the battery group and the average internal resistance of the battery group is greater than a first preset value, or the deviation between the internal resistance value of the battery and the initial internal resistance value is greater than a second preset value. The battery cell is labeled as a first battery cell;

[0057] In a specific implementation, the monitoring data of all the battery cells in the battery pack may be acquired first, and the monitoring data includes a single internal resistance value; and the monitoring data may further include a cell voltage, a temperature, etc.; The average internal resistance reference value of the battery pack, and the average internal resistance reference value of the battery pack can be calculated by the minimum mean difference method. Generally, the first preset value is 5% of the average internal resistance reference value; the first preset value is 5% of the initial single cell resistance value of the first battery cell. In this embodiment, the single cell resistance value of the first battery cell is 5% higher than the average internal resistance reference value and less than 20%; or the cell resistance value of the first battery cell is relatively different from the initial cell resistance value thereof. 5% higher and less than 20%;

[0058] S13, determining whether there is a first battery cell in the battery pack; if yes, proceeding to step S14; if not, proceeding to step S16;

[0059] In a specific implementation, it may be determined whether there is a battery cell whose deviation between the single resistance value and the average internal resistance reference value is greater than a first preset value; if yes, the battery cell may be determined to be the first a battery cell; if not, determining whether there is a battery cell whose deviation between the cell resistance value and the corresponding initial cell resistance value is greater than a second predetermined value; if yes, determining that the battery cell is the first battery Monomer

[0060] S14, determining whether the battery pack is in a floating state; if yes, proceeding to step S15; if not, proceeding to step S16;

[0061] S15, performing an activation operation on the first battery cell;

[0062] the activating operation includes at least one activation process; the activation process includes charging and discharging the first battery cell by using a preset frequency and a preset sequence current within a preset length ; normally

The preset frequency is 5K to 20K; for example, a pulse current of 8.3KHZ can be selected; the preset inter-turn interval can be 24 hours, or 12 small or 8 hours, etc., and the present invention does not do this. Limit

[0063] S16, ending.

[0064] As shown in FIG. 2, a second embodiment of the present invention provides a method for activating a lead-acid battery, comprising the steps of: [0065] S21, starting;

[0066] S22. The deviation between the internal resistance of the battery and the average internal resistance of the battery is greater than the first a battery cell having a value, or a variation of the internal resistance value of the monomer and the initial internal resistance value, which is greater than a second preset value, is marked as a first battery cell;

[0067] In a specific implementation, the monitoring data of all the battery cells in the battery pack may be acquired first, and the monitoring data includes a single internal resistance value; in addition, the monitoring data may further include a cell voltage, a temperature, etc.; The average internal resistance reference value of the battery pack, and the average internal resistance reference value of the battery pack can be calculated by the minimum mean difference method. Generally, the first preset value is 5% of the average internal resistance reference value; the first preset value is 5% of the initial single cell resistance value of the first battery cell. In this embodiment, the single cell resistance value of the first battery cell is 5% higher than the average internal resistance reference value and less than 20%; or the cell resistance value of the first battery cell is relatively biased from the initial cell resistance value thereof. 5% higher and less than 20%;

[0068] S23, determining whether there is a first battery cell in the battery pack; if yes, proceeding to step S24; if not, proceeding to step S27;

[0069] In a specific implementation, it may be determined whether there is a battery cell whose deviation between the single resistance value and the average internal resistance reference value is greater than a first preset value; if yes, the battery cell may be determined to be the first a battery cell; if not, determining whether there is a battery cell whose deviation between the cell resistance value and the corresponding initial cell resistance value is greater than a second predetermined value; if yes, determining that the battery cell is the first battery Monomer

[0070] S24, determining whether the battery pack is in a floating state; if yes, proceeding to step S25; if not, proceeding to step S27;

[0071] S25, determining whether the first battery cell is separated from the first activation threshold by the first preset threshold; if yes, proceeding to step S26; if not, ending the process as shown in step S27;

[0072] The first preset threshold is, for example, 7 days or 168 hours, which is not limited by the present invention;

[0073] S26, performing an activation operation on the first battery cell;

[0074] the activating operation includes at least one activation process; the activation process includes charging and discharging the first battery cell by using a preset frequency and a preset sequence current within a preset length ; normally

The preset frequency is 5K to 20K; for example, a pulse current of 8.3KHZ can be selected; the preset inter-turn interval is 24 hours, and of course, it can be 12 hours or 8 hours, etc., the present invention does not do this. Limit

[0075] S27, the end.

[0076] In an embodiment of the present invention, the step S15 or the step S26 includes: refreshing the internal resistance value of the first battery cell after the activation process is completed; Resistance value The deviation of the internal resistance value of the initial enthalpy of the activation operation is less than the third predetermined value, and the activation operation is ended; or if the length of the activation operation reaches the second predetermined threshold, the activation operation is ended.

[0077] More specifically, as shown in FIG. 3, the activation process of the above step S15 or step S26 includes the following steps:

[0078] S31, start;

[0079] S32, performing an activation process on the first battery cell;

[0080] S33, determining whether the activation process is completed; that is, determining whether the length of the first and second battery cells that are repeatedly charged and discharged by using the preset frequency and the preset current reaches a preset time吋, for example, 24 hours; if not, then return to step S32; if yes, proceed to step S34;

[0081] S34, refreshing the internal resistance value of the first battery cell;

[0082] S35. Determine whether the deviation between the refreshed internal resistance value and the internal resistance value of the initial operation of the activation operation is less than a third preset value. In this embodiment, the third preset value is an initial activation operation. 3% 3% of the internal resistance of the monomer; if yes, as shown in step S37, the activation operation is completed, that is, the activation operation is completed; if not, then proceeds to step S36;

[0083] S36: determining whether the length of the activation operation reaches the second preset threshold; in this embodiment, the second preset threshold is, for example, 7 days or 168 hours, but the present invention does not limit this; if not, Then return to step S32; if yes, proceed to step S37;

[0084] S37, ending the activation operation;

[0085] S38, the end.

[0086]

As shown in FIG. 4, in an embodiment of the present invention, the activation process in the activation operation mentioned in the above step S15 or step S26 includes the steps of:

[0088] S41, start;

[0089] S42. Obtain a monomer temperature of the first battery cell.

[0090] S43, determining whether the monomer temperature is less than a temperature preset value; if not, proceeding to step S44; if yes, proceed directly to step S45;

[0091] S44, using the preset frequency and the current of the first activation sequence to charge and discharge the first battery cell a plurality of times; similarly, the preset frequency is 5K to 20K; for example, 8.3 may be selected. KHz pulse current; Referring to FIG. 5, the first activation sequence includes charging time T1=60(Ht-tO)*a, waiting for the daytime to be T2=100+(t-t0)*a, discharge 吋Between T3=200ms, wait for the daytime T4=100ms again; where t is the monomer temperature of the first battery cell, t0 is the preset temperature value; a is a constant, and its value ranges from 10 to 2 0; in this embodiment, t0 is, for example, 25 ° C, a is 10;

[0093] S45, determining whether the cell voltage of the first battery cell is lower than the corresponding float voltage; if yes, proceeding to step S46; if not, proceeding to step S47;

[0094] S46: using the preset frequency and the current of the second activation sequence to cycle and charge the first battery cell a plurality of times;

[0095] Please refer to FIG. 6, the charging cycle of the second activation sequence, waiting for the daytime, discharging the daytime, and waiting again for 900ms, 10ms, 50ms, 40ms;

[0096] S47, charging and discharging the first battery cell by using the preset frequency and the current of the third activation sequence;

[0097] Please also refer to FIG. 7, in this embodiment, the third activation sequence is charged, waiting for the daytime, and discharging the daytime.

Waiting again for 500ms, 100ms 300ms ^ 100ms;

[0098] S48, the end.

[0099] Taking the 2V first battery cell as an example, the module uses a 1A current magnitude and a pulse frequency of 8.3KHz. If the current cell temperature t is higher than the temperature preset value of 25 degrees and less than 35 degrees, the temperature can be added. Value, the first battery cell is activated by the first activated sequence shown in FIG. 5; the charging cycle in the first activation sequence is Tl=600-(t-25)*a, waiting T2=100+(t-25)*a during the daytime, T3=200ms during the discharge time, and wait for the daytime T4=100ms again; if the current cell temperature t is less than 25 degrees, if the current first battery cell is single The body voltage is lower than 2.23 V, and the first battery cell is activated by the second activation sequence shown in FIG. 6; if the cell voltage of the first battery cell is higher than 2.23, The third activation sequence is shown to be activated.

The method for activating a lead-acid battery in the embodiment of the present invention has been described above, and the lead-acid battery activation system in the embodiment of the present invention will be described below.

[0101] As shown in FIG. 8, the present invention also provides a lead-acid battery activation system, including a monitoring module 10, and a control 20.

[0102] The monitoring module 10 is configured to acquire monitoring data of all battery cells in the battery group, and the monitoring data includes The internal resistance value of the monomer; in addition, the monitoring data may further include a cell voltage, a temperature, and the like;

[0103] The control platform 20 is configured to calculate an average internal resistance reference value of the battery pack, and the deviation between the internal resistance value of the battery group and the average internal resistance reference value of the battery group is greater than a first preset value, or The battery cell whose resistance value is different from the initial internal resistance value greater than the second preset value is marked as the first battery cell; the control platform 20 is further configured to determine whether the first battery cell exists in the battery group; The first battery cell is a battery sheet whose deviation between the single resistance value and the average internal resistance reference value is greater than a first preset value, or the deviation between the single resistance value and the initial single resistance value is greater than a second preset value. Wherein the first battery cell has a deviation between the single resistance value and the average internal resistance reference value greater than a first predetermined value, or a deviation of the single resistance value from the initial single resistance value is greater than the second predetermined The set battery cell; the average internal resistance reference value of the above battery pack can be calculated by the minimum mean difference method; the first preset value is 5% of the average internal resistance reference value; the first preset value is the first Initial cell charge of the battery cell 5% of the value. In a specific implementation, the single cell resistance value of the first battery cell is 5% higher than the average internal resistance reference value and less than 20%; or the cell resistance value of the first battery cell is relatively biased from the initial cell resistance value thereof. 5% higher and less than 20%. In a specific implementation, the control platform 20 may first determine whether there is a battery cell whose single resistance value and the average internal resistance reference value are greater than the first preset value; if yes, the battery cell may be determined to be the first a battery cell; if not, determining whether there is a battery cell whose deviation between the cell resistance value and the corresponding initial cell resistance value is greater than a second predetermined value; if yes, determining that the battery cell is the first battery monomer.

[0104] The control platform 20 is further configured to issue an instruction to initiate an activation operation if the first battery cell is present;

[0105] the monitoring module 10 is further configured to perform an activation operation on the first battery cell according to the activation operation instruction, the activation operation includes at least one activation process; and the activation process includes adopting within a preset length The preset frequency and the preset sequence current charge and discharge the first battery cell a plurality of times. Generally, the preset frequency is 5K to 20K; for example, a pulse current of 8.3KHZ can be selected; the predetermined inter-turn interval can be 24 hours, and of course, 12 hours or 8 hours, etc. No restrictions.

[0106] In a specific implementation, each battery cell corresponds to a monitoring module 10, and the monitoring module 10 collects data such as voltage, temperature, internal resistance and the like collected by the data gateway 30 to the control platform 20, and the control platform 20 monitors these. data. Under certain cycles and conditions, the control platform 20 issues a command to activate the first battery cell, and the monitoring module corresponding to the first battery cell starts the activation operation after receiving the command. Referring to FIG. 9 , the monitoring module 10 mainly charges and discharges the battery unit 50 through the following structure; specifically: the DC power source 13 and the first switch 15 are connected in series to the positive and negative terminals of the battery unit 50. The power load 12 and the second switch 14 are connected in series to the positive and negative terminals of the battery unit 50; the switching controller 11 is connected to the first switch 15 and the second switch 14 and is set to control the first switch 15 And the second pass is closed.

[0108] In an embodiment of the present invention, the control platform 20 is further configured to determine whether the battery pack is in a floating state, and if so, an instruction to initiate an activation operation; if not, an activation is not initiated. The command to operate, or to issue a command to end activation.

[0109] The control platform 20 is further configured to determine whether the first battery cell is separated from the inter-turn interval of the last activation operation by a first predetermined threshold; if not, the instruction to initiate the activation operation or the end of the issuance is not allowed. The instruction of the activation operation; if yes, the instruction to initiate the activation operation is allowed; the first preset threshold is, for example, 7 days or 168 hours, which is not limited by the present invention.

[0110] In an embodiment of the present invention, the monitoring module 10 is further configured to: each time the activation process is completed, that is, the first battery cell is cycled by using a preset frequency and a preset current. The length of the secondary charge and discharge reaches a preset length, for example, after 24 hours, the internal resistance of the first battery cell is refreshed; the control platform 20 is also set to determine the internal resistance of the refreshed monomer. Whether the deviation of the value from the internal resistance value of the initial enthalpy of the activation operation is less than a third preset value, and if yes, issuing an instruction to end the activation operation; in this embodiment, the third preset value is the initial 活化 of the activation operation The control platform 20 is further configured to determine whether the length of the activation operation reaches a second predetermined threshold, and if so, issue an instruction to end the activation operation; the second preset threshold is, for example, 7 The day is 168 hours, but the invention is not limited thereto. Of course, the monitoring module 10 can also determine whether the deviation between the refreshed internal resistance value and the internal resistance value of the initial operation of the activation operation is less than a third preset value, or whether the length of the activation operation reaches the second predetermined value. Set the threshold, and if so, end the activation directly without waiting for the relevant instruction.

[0111] It can be seen that the startup and the end of the activation operation in the present invention do not require manual intervention, and the control platform detects that the first battery cell is present in the battery pack, and the monitoring module corresponding to the first monomer is activated. The operation command; after receiving the command, the monitoring module immediately starts the activation operation, and monitors the internal resistance during the activation process with a preset length of, for example, 24 hours, when the internal resistance value and the initial resistance value of the activation are less than the first The three preset values, for example, the activation initial internal resistance value is 3%, and the activation operation is ended. If the condition is not satisfied, the first time after the activation operation reaches the second preset threshold, for example, 168 hours, the first is ended. Battery cell Activation operation.

[0112] The above control platform 20 is further configured to:

Obtaining a cell temperature of the first battery cell, determining whether the cell temperature is less than a temperature preset value; [0114] if not, using the preset frequency and the current of the first activation sequence And charging and discharging the first battery cell a plurality of times; similarly, the preset frequency is 5K to 20K; for example, a pulse current of 8.3KHz may be selected; please refer to FIG. 5, the first activation sequence Including charging time Tl=600-(t-t0)* _a , waiting for the daytime is T2=100+(t-t0)*a, and discharging time T3=200ms,

Waiting for the time T4=100ms again; where t is the monomer temperature of the first battery cell, t0 is the temperature preset value of the temperature preset value; a is a constant, and the value ranges from 10 to 20 In this embodiment, t0 is, for example, 25 ° C, a is 10;

[0115] If yes, determining whether the cell voltage of the first battery cell is lower than a corresponding float voltage;

[0116] if yes, charging and discharging the first battery cell by using the preset frequency and the current of the second activation sequence; wherein, referring to FIG. 6, the second activation sequence The charging time, the waiting time, the discharge time, and the waiting time are 900ms, 10ms 50ms ^ 40ms respectively;

[0117] If no, the first battery cell is circulated and charged multiple times by using the preset frequency and the current of the third activation sequence. Referring to FIG. 7, in the embodiment, the charging cycle of the third activation sequence, the waiting time, the discharge time, and the waiting time are 500 ms, 100 ms 300 ms ^ 100 ms, respectively;

[0118] Taking the 2V first battery cell as an example, the module uses a 1A current magnitude and a pulse frequency of 8.3 KHz. If the current cell temperature t is higher than the temperature preset value of 25 degrees and less than 35 degrees, the temperature can be added. Value, the first battery cell is activated by the first activated sequence shown in FIG. 5; the charging cycle in the first activation sequence is Tl=600-(t-25)*a, waiting T2=100+(t-25)*a during the daytime, T3=200ms during the discharge time, and wait for the daytime T4=100ms again; if the current cell temperature t is less than 25 degrees, if the current first battery cell is single The body voltage is lower than 2.23 V, and the first battery cell is activated by the second activation sequence shown in FIG. 6; if the cell voltage of the first battery cell is higher than 2.23, The third activation sequence is shown to be activated.

[0119] Generally, the control platform 20 knows that the first battery cell has finished the activation operation, can record the current state, and performs the detection of whether the monomer needs to be activated again after the interval of 168, so that the completion is completed. The entire activation process for a single first battery cell. [0120] The method and system for activating a lead-acid battery according to the present invention, using a preset frequency and a preset current to charge and discharge the first battery cell a plurality of times to activate the activation material of the battery plate failure Therefore, the battery is restored to activity and the capacity of the backward monomer is increased to extend the life of the battery.

Industrial applicability

The method for activating a lead-acid battery and a system thereof according to the present invention, after finding a first battery cell that needs to be activated, can issue an activation alarm and issue a command to initiate activation operation under the premise of floating charging, and Cycling monitoring is performed; during the activation operation of the first battery cell, if the monitoring battery pack is in a non-floating state, a command to end the activation operation is issued. The invention automatically monitors the state of the battery for each battery cell and actively completes the activation operation by the preset frequency and the preset sequence without damaging the current of the battery, and can greatly reduce the maintenance cost of the base station without manual intervention; The invention can adaptively select different activation sequences according to the current first battery cell condition, achieve a good effect of activating the battery, delay the progress of the battery degradation, and delay the battery capacity reduction process; further, the battery is not required during the activation operation The load of the group is cut off, which does not affect the normal cells of other sections; thus effectively improving the power supply reliability of the base station of the entire equipment room.

[0122] It is to be noted that the terms "comprising", "including", or any other variants thereof are intended to encompass a non-exclusive inclusion, such that a process, method, article, or device comprising a series of elements includes Those elements, but also other elements not explicitly listed, or elements that are inherent to such a process, method, item or device. An element defined by the phrase "comprises a ..." without further restrictions does not exclude the presence of additional elements in the process, method, article, or device that comprises the element.

[0123] Through the description of the above embodiments, those skilled in the art can clearly understand that the foregoing embodiment method can be implemented by means of software plus a necessary general hardware platform, and of course, can also be through hardware, but in many cases, the former It is a better implementation. Based on such understanding, the technical solution of the present invention, which is essential or contributes to the prior art, may be embodied in the form of a software product stored in a storage medium (such as ROM/RAM, disk, The optical disc includes a number of instructions for causing a terminal device (which may be a mobile phone, a computer, a server, an air conditioner, or a network device, etc.) to perform the methods described in various embodiments of the present invention.

The above is only a preferred embodiment of the present invention, and thus does not limit the scope of the patent of the present invention. The equivalent structure or equivalent flow of the invention and the equivalents of the drawings are directly or indirectly applied to other related technical fields, and are included in the scope of patent protection of the present invention.

Claims

Claim

[Claim 1] A method for activating a lead-acid battery, comprising:

The deviation between the internal resistance value of the battery group and the average internal resistance of the battery group is greater than a first preset value, or the battery internal resistance value of the internal resistance value of the battery is greater than a second preset value Being the first battery cell;

Determining whether the first battery cell is present in the battery pack;

If yes, determining whether the battery pack is in a floating state;

If yes, performing an activation operation on the first battery cell, the activation operation including at least one activation process; the activation process includes using a preset frequency and a preset sequence current within the preset length The first battery cell is charged and discharged several times in a cycle.

[Claim 2] The method for activating a lead-acid battery according to claim 1, wherein, before performing the activating operation on the first battery cell, the method further comprises: determining that the first battery cell is from a last activation operation Whether the inter-turn interval reaches a first predetermined threshold, and if so, performing the step of activating the first battery cell.

[Claim 3] The method for activating a lead-acid battery according to claim 1 or 2, wherein the activation treatment body comprises:

Obtaining a cell temperature of the first battery cell, and determining whether the cell temperature is less than a temperature preset value;

If not, charging and discharging the first battery unit by using the preset frequency and the current of the first activation sequence;

If yes, determining whether the cell voltage of the first battery cell is lower than a corresponding float voltage, if the first battery cell is circulated by using the preset frequency and the current of the second activation sequence Multiple charge and discharge;

If not, the first battery unit is charged and discharged a plurality of times using the predetermined frequency and the current of the third activation sequence.

[Claim 4] The method for activating a lead-acid battery according to claim 3, wherein:

The first activation sequence includes charging time T1=600-(t-t0)* _a , waiting for the daytime to be T2=100 + (t-t0)*a, discharge time T3=200ms, wait again for the daytime T4=100ms; where t is the monomer temperature of the first battery cell, and to is the temperature preset value;

The charging cycle of the second activation sequence, waiting for the daytime, discharging the daytime, and waiting again for the daytime are 900ms, 10ms, 50ms, 40ms, respectively;

The charging cycle of the third activation sequence, the waiting time, the discharge time, and the waiting time are 500 ms, 100 ms, 300 ms, and 100 ms, respectively.

[Claim 5] The method for activating a lead-acid battery according to claim 1, wherein the activating operation of the first battery cell each time the activation process comprises: after each activation process is completed, And refreshing the internal resistance value of the first battery cell, if the deviation between the refreshed monomer internal resistance value and the monomer internal resistance value of the initial operation of the activation operation is less than a third preset value, ending the activation operation; Or

Ending the activation operation if the length of the activation operation reaches a second predetermined threshold

[Claim 6] A lead-acid battery activation system, comprising:

The control platform is configured to set a deviation between a single internal resistance value of the battery pack and the average internal resistance reference value of the battery pack to be greater than a first preset value, or a deviation between a single internal resistance value and an initial internal resistance value thereof is greater than a second preset value The battery cell is labeled as a first battery cell;

The control platform is further configured to determine whether the first battery cell is present in the battery pack; the monitoring module is configured to perform an activation operation on the first battery cell, and the activation operation includes at least one activation process; The activation process includes charging and discharging the first battery cell a plurality of times by using a preset frequency and a preset current within a predetermined length.

[Claim 7] The lead-acid battery activation system according to claim 6, wherein the control platform is further configured to determine whether the first battery cell is separated from the first activation threshold by the first predetermined threshold If not, it is not allowed to issue an instruction to start the activation operation or to issue an instruction to end the activation operation.

[Claim 8] The lead-acid battery activation system according to claim 6 or 7, wherein the control platform is further configured to: Obtaining a cell temperature of the first battery cell, and determining whether the cell temperature is less than a temperature preset value;

[Claim 9] The lead-acid battery activation system according to claim 8, wherein:

The first activation sequence includes charging time T1=600-(t-t0)* _a , waiting for the daytime T2=100+(t-t0)*a, and discharging the daytime T3=200ms, waiting for the daytime again T4=100ms; wherein, t is the monomer temperature of the first battery cell, and to is the temperature preset value;

[Claim 10] The lead-acid battery activation system according to claim 6, wherein the monitoring module is further configured to refresh the internal resistance value of the first battery cell after each activation process is completed;

The control platform is further configured to determine whether the deviation between the refreshed internal resistance value and the single internal resistance value of the initial operation of the activation operation is less than a third preset value, and if yes, issue an instruction to end the activation operation; or determine the location Whether the length of the activation operation reaches the second predetermined threshold, and if so, an instruction to end the activation operation is issued.