CN112557911B - Device and method for testing performance consistency of lead-acid storage battery - Google Patents
Device and method for testing performance consistency of lead-acid storage battery Download PDFInfo
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/378—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator
- G01R31/379—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC] specially adapted for the type of battery or accumulator for lead-acid batteries
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/385—Arrangements for measuring battery or accumulator variables
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The application discloses a device and a method for testing performance consistency of a lead-acid storage battery, and relates to the technical field of lead-acid storage battery detection. The device for testing the performance consistency of the lead-acid storage battery comprises a simulation test box, the lead-acid storage battery, an intelligent switch and an activating instrument, wherein the simulation test box at least comprises a heating module, an oscillator and fine sand, and the lead-acid storage battery utilizes a battery cell monitoring module to measure and monitor parameters such as voltage, current, internal resistance and the like of the lead-acid storage battery. A method for testing the performance consistency of a lead-acid storage battery is used for testing the consistency of the full life cycle performance of the lead-acid storage battery more quickly against the change of the performance of the lead-acid storage battery in the operation process of high temperature, oscillation and high-rate charge and discharge of the lead-acid storage battery. The whole test period of the application is 1-15d, the test time is obviously shortened, the data is real, the consistency of the full life cycle performance of the lead-acid storage battery is evaluated, and the application is beneficial to enhancing the battery quality evaluation.
Description
Technical Field
The application relates to the technical field of performance testing of storage batteries, in particular to a device and a method for testing performance consistency of a lead-acid storage battery.
Background
The stability of the battery and the actual capacity that can be provided to the load during discharge are of great importance to ensure safe operation of the electrical equipment. The consistency performance of a lead-acid battery has a great influence on the performance of the whole lead-acid battery. The existing performance consistency tests are:
1. weight consistency: weigh and record the weight of each battery with a precision-compliant scale. The difference between the weight of a single battery and the average weight of the battery is calculated.
2. Open-end voltage consistency: and (3) carrying out open-circuit standing for 24 hours in an environment of 25+/-2 ℃ on the fully charged storage battery, respectively measuring and recording the open-circuit terminal voltage (the measuring point is at a terminal) of each storage battery, and calculating the difference DeltaU between the highest value and the lowest value of the open-circuit terminal voltage.
3. Capacity consistency: after the storage batteries are fully charged, respectively performing a 10h rate capacity discharge test, discharging current I10A, cut-off voltage 1.8V, and recording the discharge capacity of each storage battery; and after the storage batteries are fully charged, the storage batteries are connected in series, connected into a tester, set a discharge current I10A, and put to the cut-off voltage of 1.8V of one single storage battery, the discharge should be stopped, and the discharge capacity is recorded. And calculating the difference between the capacity of each storage battery and the capacity of the storage battery set by converting the discharge capacity to 25 ℃. For example, cn2016611219229. X, a method of detecting the uniformity of cells in a battery pack, evaluates the uniformity by testing the voltage level of each cell of the battery pack.
The performance consistency test of the prior art does not consider the consistency of battery performance during operation, however, lead-acid batteries require that the lead-acid batteries have good consistency during operation.
Disclosure of Invention
The application provides a device and a method for testing the performance consistency of a lead-acid storage battery, which are used for solving the problem that the consistency in the operation of the lead-acid storage battery is not considered in the existing performance consistency test.
The application is realized by the following technical proposal, a lead-acid storage battery performance consistency testing device at least comprises a simulation test box, a lead-acid storage battery, an intelligent switch and an activating instrument,
the lead-acid storage batteries are connected in series, and intelligent switches are arranged between the lead-acid storage batteries;
the lead-acid storage battery is arranged in the simulation test box, and the activating instrument is connected with a lead-acid storage battery pack;
the lead-acid storage batteries are provided with battery cell monitoring modules;
the simulation test chamber at least comprises a heating module, an oscillator and fine sand. The storage battery is buried in the fine sand, the storage battery is heated by the heating module, heat can be uniformly transmitted to the storage battery through the fine sand, and vibration in the using process is simulated through the oscillator.
Preferably, the fine sand: the fineness modulus is 2-1.8, the particle diameter is more than 90% of the total weight of the particle with the particle diameter more than 0.075mm, and the average particle diameter is 0.2-0.25 mm. The fine sand with the fineness is basically smooth, the storage battery and the inner shell of the equipment cannot be damaged in the vibration process, the grain size of the fine sand is small, the fine sand can be smaller and smaller in the vibration process, the fine sand can easily flow into a heating module in the equipment, the temperature control is too large and not good, the current fine sand fineness is determined through long-term experiments, and the balance of temperature control and vibration is achieved.
Preferably, the battery cell monitoring module is provided with the functions of monitoring and recording parameters such as battery voltage, current, internal resistance and the like, wherein,
a data recorder is arranged in the battery cell monitoring module; the battery cell monitoring module is connected with the positive electrode and the negative electrode of the battery respectively through wires and then connected with the data recorder, so that the voltage of the battery can be monitored and recorded in the battery cell monitoring module; the high-precision Hall current sensor is communicated with a connecting wire of an activating instrument for charging and discharging the battery, and the high-precision Hall current sensor is connected with a data recorder, so that the battery current can be monitored and recorded in a battery cell monitoring module.
The application provides a lead-acid storage battery performance consistency testing method, which is based on the lead-acid storage battery performance consistency testing device and comprises the following steps:
n lead-acid batteries are connected in series to form groups, and the temperature range is as follows: 30-45 ℃ (45 ℃ for the new battery and 30 ℃ for the old battery), 50-100 r/min for oscillation frequency, 5-10mm for amplitude, and 1.2-1.5I for charging and discharging current 10 A (New cell 1.5I) 10 A, old battery 1.2I 10 A) The charge voltage limit is 2.35-2.40V (new battery 2.40V, old battery 2.35V), the discharge cut-off voltage is 1.75-1.85V (new battery 1.75V, old battery 1.85V), and the charge and discharge cycles are 10-15 times (new battery 15 times, old battery 10 times);
record the 1 st discharge voltage of each battery as V 11 (New cell 1.8V, old cell 1.9V), the time required for discharging is respectively:；
record the 1 st charge voltage of each battery as V 12 At 2.25V, the charging time was respectively:；
record the 5 th discharge voltage of each battery as V 51 (New cell 1.8V, old cell 1.9V), the time required for discharging is respectively:；
record the 5 th charge voltage of each battery as V 52 At 2.25V, the charging time was respectively:；
record the 10 th discharge voltage of each battery as V 101 (New cell 1.8V, old cell 1.9V), the time required for discharging is respectively:；
record the 10 th charge voltage of each battery as V 102 At 2.25V, the charging time was respectively:；
record 15 th discharge voltage of each battery as V 151 (New cell 1.8V, old cell 1.9V), the time required for discharging is respectively:；
record 15 th charge voltage of each battery as V 152 At 2.25V, the charging time was respectively:；
the i-th battery, the discharge voltage is 1.8V of the new battery, and when the old battery is 1.9V, the time required for discharging is recorded as follows:when the charging voltage is 2.25V, the charging time is +.>The j-th battery, when the discharge voltage is 1.8V of the new battery and 1.9V of the old battery, the time required for discharging is recorded as follows: />When the charging voltage is 2.25V, the charging time is +.>;
Any two batteries i, j of the a-th cycle, the discharge phase of which, ifThe consistency of the lead-acid storage battery in the a-time cycle discharging stage is good;
any two batteries i, j of the a-th cycle, the charging stage of which, ifThe consistency of the lead-acid storage battery in the a-time cycle charging stage is good;
when the discharge and charge of the 1 st, 5 th, 10 th and 15 th (new battery) meet the requirements, the consistency of the lead-acid storage battery is good.
Preferably, the number of test cells is 3 or 6.
According to the technical scheme, the application provides a device and a method for testing the performance consistency of a lead-acid storage battery, wherein the testing device at least comprises a simulation test box, the lead-acid storage battery, an intelligent switch and an activating instrument; the lead-acid storage batteries are connected in series, and intelligent switches are arranged between the lead-acid storage batteries; the lead-acid storage battery is arranged in the simulation test box, and the activating instrument is connected with a lead-acid storage battery pack; the lead-acid storage batteries are provided with battery cell monitoring modules. The simulation test chamber at least comprises a heating module, an oscillator and fine sand. The fine sand: the fineness modulus is 2-1.8, the particle diameter is more than 90% of the total weight of the particle with the particle diameter more than 0.075mm, and the average particle diameter is 0.2-0.25 mm. The battery cell monitoring module is provided with parameters for monitoring and recording the voltage, the current, the internal resistance and the like of the battery; a data recorder is arranged in the battery cell monitoring module; the battery voltage can be monitored and recorded in the battery single monitoring module by connecting the battery positive electrode and the battery negative electrode with the lead and then connecting the battery positive electrode and the battery negative electrode with the paperless recorder; the high-precision Hall current sensor is communicated with a connecting wire of an activating instrument for charging and discharging the battery, and then is connected with a paperless recorder, so that the battery current can be monitored and recorded in a battery single monitoring module.
The test method meets the following requirements through 1 st cycle discharging and charging<、/></>Wherein a is 1, which indicates that the 1 st cycle discharging and charging performance consistency is good, otherwise, the lead-acid storage battery performance consistency is poor;
if the 1 st cycle discharging and charging performance consistency is good, the 5 th cycle discharging and charging are satisfied</>、/></>Wherein a is 5, which indicates that the 5 th cycle discharging and charging performance consistency is good, otherwise, the lead-acid storage battery performance consistency is poor;
if the 5 th cycle discharging and charging performance consistency is excellent, the 10 th cycle discharging and charging are satisfied</>、/></>Wherein a is 10, the 10 th cycle discharging and charging performance consistency is excellent, otherwise, the lead-acid storage battery performance consistency is poor;
if the 10 th cycle discharge and charging performance consistency is goodAnd then the 15 th cycle of discharging and charging are all satisfied</>、/></>And a is 15, which indicates that the 15 th cycle discharging and charging performance consistency is good, otherwise, indicates that the lead-acid storage battery performance consistency is poor.
The application has the beneficial effects that: the simulation test box is used for simulating influence factors under the working state of the storage battery, the battery monomer monitoring module is used for monitoring charging time and discharging time, the simulation test box at least comprises a heating module, an oscillator and fine sand, the heating module is used for heating, heat can be uniformly conducted to the storage battery through the fine sand, and vibration in the using process is simulated through the oscillator. The fineness modulus and the grain diameter of the fine sand are determined, so that a good temperature control effect can be achieved, and equipment cannot be damaged. The consistency is evaluated by comparing the charging time and the discharging time of the 1 st, the 5 th, the 10 th and the 15 th times, the substation storage battery is used for about 5 years, and generally, except for a small part of batteries, the attenuation of other batteries is extremely small. The test period of the application is 1-15d, the test time is obviously shortened, and the data is real.
Drawings
Fig. 1 is a schematic structural diagram of a test apparatus according to an embodiment of the present application.
FIG. 2 is a schematic diagram of a simulation test chamber according to an embodiment of the present application.
Fig. 3 is a schematic structural diagram of a lead-acid battery and a monitoring device thereof according to an embodiment of the present application.
FIG. 4 is a flow chart of a test method described in an embodiment of the application.
Wherein, 1 is the simulation test case, 11 is the heating module, 12 is the oscillator, 13 is the fine sand, 2 is the lead-acid battery, 21 is battery monomer monitoring module, 3 is intelligent switch, 4 is the activation appearance, 21 is battery monomer monitoring module.
Detailed Description
The following description of the embodiments of the present application will be made more fully hereinafter with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Referring to fig. 1-3, a lead-acid battery performance consistency testing device at least comprises a simulation test box 1, a lead-acid battery 2, an intelligent switch 3 and an activation instrument 4, wherein,
the lead-acid storage battery 2 is formed by connecting lead-acid storage batteries in series, and an intelligent switch 3 is arranged between the lead-acid storage battery 2 and the lead-acid storage battery 2;
the lead-acid storage battery 2 is arranged in the simulation test box 1, and the activation instrument 4 is connected with a lead-acid storage battery pack;
the lead-acid storage batteries 2 are provided with battery cell monitoring modules 21; the battery cell monitoring module 21 is provided with parameters for monitoring and recording the voltage, the current, the internal resistance and the like of the battery, wherein a data recorder is arranged in the battery cell monitoring module 21; the battery cell monitoring module 21 is respectively connected with the positive electrode and the negative electrode of the battery through wires and then connected with the paperless recorder, so that the voltage of the battery can be monitored and recorded in the battery cell monitoring module; the high-precision Hall current sensor is communicated with a connecting wire of an activating instrument 4 for charging and discharging the battery, and the high-precision Hall current sensor is connected with a data recorder, so that the battery current can be monitored and recorded in a battery cell monitoring module.
The simulation test chamber 1 comprises at least a heating module 11, an oscillator 12 and fine sand 13. The fine sand: the fineness modulus is 2-1.8, the particle diameter is more than 90% of the total weight of the particle with the particle diameter more than 0.075mm, and the average particle diameter is 0.2-0.25 mm. The lead-acid storage battery 2 is buried in the fine sand 13, the fine sand 13 is used for heating, heat can be uniformly transmitted to the lead-acid storage battery 2 through the fine sand 13, and vibration in the using process is simulated through the oscillator 12. The fine sand with the fineness is basically smooth, the storage battery and the inner shell of the equipment cannot be damaged in the vibration process, the grain size of the fine sand is small, the fine sand can be smaller and smaller in the vibration process, the fine sand can easily flow into a heating module in the equipment, the temperature control is too large and not good, the current fine sand fineness is determined through long-term experiments, and the balance of temperature control and vibration is achieved.
Referring to fig. 4, a method for testing performance consistency of a lead-acid battery, based on the foregoing testing device, includes:
n lead-acid batteries are connected in series to form groups, and the temperature range is as follows: 30-45 ℃ (45 ℃ for the new battery and 30 ℃ for the old battery), 50-100 r/min for oscillation frequency, 5-10mm for amplitude, and 1.2-1.5I for charging and discharging current 10 A (New cell 1.5I) 10 A, old battery 1.2I 10 A) The charge voltage limit is 2.35-2.40V (new battery 2.40V, old battery 2.35V), the discharge cut-off voltage is 1.75-1.85V (new battery 1.75V, old battery 1.85V), and the charge and discharge cycles are 10-15 times (new battery 15 times, old battery 10 times);
record the 1 st discharge voltage of each battery as V 11 (New cell 1.8V, old cell 1.9V), the time required for discharging is respectively:；
record the 1 st charge voltage of each battery as V 12 At 2.25V, the charging time was respectively:；
record the 5 th discharge voltage of each battery as V 51 (New cell 1.8V, old cell 1.9V), the time required for discharging is respectively:；
record the 5 th charge voltage of each battery as V 52 At 2.25V, the charging time was respectively:；
record the 10 th discharge voltage of each battery as V 101 (New cell 1.8V, old cell 1.9V), the time required for discharging is respectively:；
record the 10 th charge voltage of each battery as V 102 At 2.25V, the charging time was respectively:；
record 15 th discharge voltage of each battery as V 151 (New cell 1.8V, old cell 1.9V), the time required for discharging is respectively:；
record 15 th charge voltage of each battery as V 152 At 2.25V, the charging time was respectively:；
the i-th battery, the discharge voltage is 1.8V of the new battery, and when the old battery is 1.9V, the time required for discharging is recorded as follows:when the charging voltage is 2.25V, the charging time is +.>The j-th battery, when the discharge voltage is 1.8V of the new battery and 1.9V of the old battery, the time required for discharging is recorded as follows: />When the charging voltage is 2.25V, the charging time is +.>；
Any two batteries i, j of the a-th cycle, the discharge phase of which, ifThe consistency of the lead-acid storage battery in the a-time cycle discharging stage is good;
any two batteries i, j of the a-th cycle, the charging stage of which, ifThe lead-acid storage battery in the a-cycle charging stage has good consistency.
In the concrete evaluation, the method meets the following requirements through 1 st cycle discharging and charging<、/></>Wherein a is 1, which indicates that the 1 st cycle discharging and charging performance consistency is good, otherwise, the lead-acid storage battery performance consistency is poor;
if the 1 st cycle discharging and charging performance consistency is good, the 5 th cycle discharging and charging are satisfied</>、/></>Wherein a is 5, the 5 th cycle discharge and charging performance are described asGood performance, otherwise, poor performance consistency of the lead-acid storage battery is indicated;
if the 5 th cycle discharging and charging performance consistency is excellent, the 10 th cycle discharging and charging are satisfied</>、/></>Wherein a is 10, the 10 th cycle discharging and charging performance consistency is excellent, otherwise, the lead-acid storage battery performance consistency is poor;
if the 10 th cycle discharging and charging performance consistency is good, the 15 th cycle discharging and charging are satisfied</>、/></>And a is 15, which indicates that the 15 th cycle discharging and charging performance consistency is good, otherwise, indicates that the lead-acid storage battery performance consistency is poor.
In the present application, the number of lead-acid storage batteries 2 is preferably 3 or 6.
In order to further illustrate the present application, the following describes in detail a lead-acid battery performance consistency testing apparatus and method provided by the present application in connection with the examples, but they should not be construed as limiting the scope of the present application.
Example 1:
and (3) constructing a test device platform according to the figures 1-3, and constructing a lead-acid storage battery performance consistency test device.
The lead-acid batteries were A, B, C batteries of 2V500Ah, respectively.
3 lead-acid batteries are connected in series to form a group, and the temperature is as follows: setting the cycle charge and discharge for 15 times, wherein the oscillation frequency is 60r/min, the amplitude is 6mm, the charge current is 75A, the charge voltage limit is 2.4V, the discharge current is 75A, the discharge cut-off voltage is 1.75V at 45 ℃;
when the 1 st discharge voltage is 1.8V, the discharge time is respectively as follows: 5.4h, 5.4h;
when the 1 st charging voltage is 2.25V, the charging time is 3.8h, 3.9h and 4.0h respectively;
thenThe size is +.>，/>The size of the particles is 1.17,is greater than->Wherein a is 1;
therefore, the lead-acid storage battery has poor performance consistency after the test is ended.
Example 2:
and (3) constructing a test device platform according to the figures 1-3, and constructing a lead-acid storage battery performance consistency test device.
The lead-acid storage batteries are D, E, F new batteries with the voltage of 2V500Ah respectively.
3 lead-acid batteries are connected in series to form a group, and the temperature is as follows: setting the cycle charge and discharge for 15 times, wherein the oscillation frequency is 60r/min, the amplitude is 6mm, the charge current is 75A, the charge voltage limit is 2.4V, the discharge current is 75A, the discharge cut-off voltage is 1.75V at 45 ℃;
when the 1 st discharge voltage is 1.8V, the discharge time is respectively as follows: 5.27h, 5.4h and 5.53h;
when the 1 st charging voltage is 2.25V, the charging time is 3.9h, 3.9h and 3.9h respectively;
thenThe size is +.>，/>The size of the particles is 1.62,is greater than->Wherein a is 1;
therefore, the lead-acid storage battery has poor performance consistency after the test is ended.
Example 3:
and (3) constructing a test device platform according to the figures 1-3, and constructing a lead-acid storage battery performance consistency test device.
The lead-acid storage batteries are respectively a, b and c batteries of 2V500 Ah.
3 lead-acid batteries are connected in series to form a group, and the temperature is as follows: setting the cycle charge and discharge for 15 times, wherein the oscillation frequency is 60r/min, the amplitude is 6mm, the charge current is 75A, the charge voltage limit is 2.4V, the discharge current is 75A, the discharge cut-off voltage is 1.75V at 45 ℃;
when the 1 st discharge voltage is 1.8V, the discharge time is respectively as follows: 5.4h, 5.4h;
when the 1 st charging voltage is 2.25V, the charging time is 3.9h, 3.9h and 3.9h respectively;
when the 5 th discharge voltage is 1.8V, the discharge time is respectively as follows: 5.05h, 5.06h and 5.03h;
when the 5 th charging voltage is 2.25V, the charging time is 3.53h, 3.52h and 3.53h respectively;
when the 10 th discharge voltage is 1.8V, the discharge time is respectively as follows: 4.36h, 4.31h and 4.37h;
when the 10 th charging voltage is 2.25V, the charging time is 3.01h, 3.04h and 3.02h respectively;
when the 15 th discharge voltage is 1.8V, the discharge time is respectively as follows: 3.01h, 3.07h, 3.03h;
when the 15 th charging voltage is 2.25V, the charging time is 2.21h, 2.194h and 2.24h respectively;
thenThe size is +.>，/>The size is 0.911, which satisfies</>，/>The size is +.>，The size is 0.6644, which satisfies-></>Wherein a is 15; therefore, the lead-acid storage battery has excellent performance consistency after the test is finished.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (6)
1. The method for testing the performance consistency of the lead-acid storage battery is characterized in that the performance consistency test of the lead-acid storage battery is performed based on a performance consistency test device of the lead-acid storage battery, and the performance consistency test device of the lead-acid storage battery at least comprises a simulation test box, the lead-acid storage battery, an intelligent switch and an activating instrument; the lead-acid storage batteries are connected in series, and intelligent switches are arranged between the lead-acid storage batteries; the lead-acid storage battery is arranged in the simulation test box, and the activating instrument is connected with a lead-acid storage battery pack; the lead-acid storage batteries are provided with battery cell monitoring modules; the simulation test box at least comprises a heating module, an oscillator and fine sand, wherein the heating module is used for heating, heat is uniformly transmitted to the storage battery through the fine sand, and vibration in the using process is simulated through the oscillator; the test method comprises the following steps:
n lead-acid batteries are connected in series to form groups, and the temperature range is as follows: the temperature is 30-45 ℃, the oscillation frequency is 50-100 r/min, the amplitude is 5-10mm, and the charge and discharge current is 1.2-1.5I 10 A, the charging voltage limit is 2.35-2.40V, the discharge cut-off voltage is 1.75-1.85V, and the cycle charging and discharging are carried out for 10-15 times;
record the 1 st discharge voltage of each battery as V 11 The time required for discharge is respectively:；
record the 1 st charge voltage of each battery as V 12 When=2.25v, the charging time is respectively:；
record the 5 th discharge voltage of each battery as V 51 The time required for discharge is respectively:；
record the 5 th charge voltage of each battery as V 52 When=2.25v, the charging is requiredThe time is respectively as follows:；
record the 10 th discharge voltage of each battery as V 101 The time required for discharge is respectively:；
record the 10 th charge voltage of each battery as V 102 When=2.25v, the charging time is respectively:；
record 15 th discharge voltage of each battery as V 151 The time required for discharge is respectively:；
record 15 th charge voltage of each battery as V 152 When=2.25v, the charging time is respectively:；
when the ith battery is a new battery, the discharge voltage V 11 = V 51 = V 101 = V 151 When the ith battery is old, the discharge voltage V is =1.8v 11 = V 51 = V 101 = V 151 When=1.9v, the time required for discharge was noted as:the method comprises the steps of carrying out a first treatment on the surface of the When the charging voltage of the ith battery is 2.25V, the charging time is +.>The method comprises the steps of carrying out a first treatment on the surface of the When the jth battery is a new battery, the discharging voltage V 11 = V 51 = V 101 = V 151 When the kth battery is the old battery, the discharge voltage V is =1.8v 11 = V 51 = V 101 = V 151 When=1.9v, the time required for discharge was noted as: />When the charging voltage of the jth battery is 2.25V, the charging time is +.>；
Any two batteries i, j of the a-th cycle, the discharge phase of which, ifThe consistency of the lead-acid storage battery in the a-time cycle discharging stage is good;
any two batteries i, j of the a-th cycle, the charging stage of which, ifThe consistency of the lead-acid storage battery in the a-time cycle charging stage is good;
when the discharge and charge of the 1 st, 5 th, 10 th and 15 th times meet the requirements, the consistency of the lead-acid storage battery is good.
2. The method for testing the performance consistency of the lead-acid storage battery according to claim 1, wherein the number of the lead-acid storage batteries to be tested is 3 or 6.
3. The method for testing the performance consistency of the lead-acid storage battery according to claim 1, wherein the testing temperature of the new battery is 45 ℃, and the charging and discharging current of the new battery is 1.5I 10 And A, the charging voltage limit of the new battery is 2.40V, the discharging cut-off voltage of the new battery is 1.75V, and the new battery is circularly charged and discharged for 15 times.
4. The method for testing the performance consistency of the lead-acid storage battery according to claim 1, wherein the testing temperature of the old battery is 30 ℃, and the charging and discharging current of the old battery is 1.2I 10 And A, the charging voltage limit of the old battery is 2.35V, the discharging cut-off voltage of the old battery is 1.85V, and the old battery is circularly charged and discharged for 10 times.
5. The method for testing the performance consistency of the lead-acid storage battery according to claim 1, wherein the fine sand is as follows: the fineness modulus is 2-1.8, the particle diameter is more than 90% of the total weight of the particle with the particle diameter more than 0.075mm, and the average particle diameter is 0.2-0.25 mm.
6. The method for testing the performance consistency of the lead-acid storage battery according to claim 1, wherein a data recorder is arranged in the single battery monitoring module; the battery cell monitoring module is connected with the positive electrode and the negative electrode of the battery respectively through wires and then connected with the data recorder, so that the voltage of the battery can be monitored and recorded in the battery cell monitoring module; the high-precision Hall current sensor is communicated with a connecting wire of an activating instrument for charging and discharging the battery, and the high-precision Hall current sensor is connected with a data recorder, so that the battery current can be monitored and recorded in a battery cell monitoring module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011410231.1A CN112557911B (en) | 2020-12-03 | 2020-12-03 | Device and method for testing performance consistency of lead-acid storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011410231.1A CN112557911B (en) | 2020-12-03 | 2020-12-03 | Device and method for testing performance consistency of lead-acid storage battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112557911A CN112557911A (en) | 2021-03-26 |
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