CN109669136A - A kind of battery case charge-discharge test method - Google Patents
A kind of battery case charge-discharge test method Download PDFInfo
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- CN109669136A CN109669136A CN201710955256.1A CN201710955256A CN109669136A CN 109669136 A CN109669136 A CN 109669136A CN 201710955256 A CN201710955256 A CN 201710955256A CN 109669136 A CN109669136 A CN 109669136A
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention discloses a kind of battery case charge-discharge test methods, belong to field of batteries, this method are as follows: detect the global voltage and battery cell voltage of battery case；Constant-current discharge, constant-current charge and constant-voltage charge are successively carried out to the battery case, and the electric current and voltage of single battery in the battery case are detected simultaneously, the current fluctuation, voltage fluctuation and voltage difference of single battery in the battery case are determined according to the electric current of the single battery and voltage；During the test, the temperature of battery case described in real-time detection；When any one parameter is unqualified in the global voltage of the battery case and battery cell voltage, the current fluctuation of single battery, voltage fluctuation and voltage difference, temperature, determine that the battery case is unqualified.This kind of battery case charge-discharge test method, carries out constant-current discharge, constant-current charge and constant-voltage charge simulating vehicle operating status, and whether detection battery case meets the requirements.
Description
Technical field
The present invention relates to field of batteries, more particularly to a kind of battery case charge-discharge test method.
Background technique
Battery case without detection is directly used in vehicle operation, and battery case can embody all kinds of quality in vehicle operation
Problem needs to repair battery case under unloading for vehicle at this time, time-consuming and laborious, but existing battery case detection method is single, can not
Whether accurate detection battery case operating status meets the requirements.
Summary of the invention
To solve the problem above-mentioned, the present invention provides a kind of battery case charge-discharge test methods, carry out constant-current discharge, perseverance
Whether current charge and constant-voltage charge simulating vehicle operating status, detection battery case meet the requirements.
The technical solution used in the present invention is: a kind of battery case charge-discharge test method, this method are as follows: detection battery case
Global voltage and battery cell voltage；Constant-current discharge, constant-current charge and constant-voltage charge are successively carried out to the battery case, and same
When detect the electric current and voltage of single battery in the battery case, the electricity is determined according to the electric current of the single battery and voltage
The current fluctuation, voltage fluctuation and voltage difference of single battery in the case of pond；During the test, the temperature of battery case described in real-time detection
Degree；When the global voltage and battery cell voltage of the battery case, the current fluctuation of single battery, voltage fluctuation and voltage difference,
When any one parameter is unqualified in temperature, determine that the battery case is unqualified.
This method specifically: it is described the battery case is successively carried out constant-current discharge, constant-current charge and constant-voltage charge it
Before, the numerical value of the battery case global voltage is in single battery serial number single battery into 3 times of battery cases in 2 times of battery cases
When except serial number, the global voltage of the battery case is unqualified；During the test, when monomer electricity each in the battery case
The voltage in pond be in 2 times of battery cases single battery serial number into 3 times of battery cases except single battery serial number when, the battery
The voltage difference of case is unqualified.
This method specifically: when the battery cell voltage in the battery case is less than 5V, monomer voltage in the battery case
It is unqualified.
This method specifically: it is described the battery case is successively carried out constant-current discharge, constant-current charge and constant-voltage charge it
Before, when the difference of each battery cell voltage is greater than 1V in the battery case, the battery cell voltage in the battery case is unqualified.
This method specifically: during the test, when the current fluctuation of the single battery is more than 25A, the battery case
In current fluctuation it is unqualified.
This method specifically: during the test, when the voltage fluctuation of the single battery is more than 2V, in the battery case
Voltage fluctuation be it is unqualified, with ensure simulate use after battery case in monomer Current Voltage stablize.
This method specifically: during the test, should if the temperature of the battery case is in except 20 DEG C -45 DEG C
The temperature of battery case is unqualified.
This method further includes, when it is described constant-current discharge, constant-current charge and constant-voltage charge successively are carried out to the battery case when,
If battery cell voltage is less than 10V in the battery case, the battery cell voltage in the battery case is unqualified；To battery
After case successively carries out constant-current discharge, constant-current charge and constant-voltage charge, when the battery cell voltage in battery case is less than 10V, sentence
The battery cell voltage broken in the battery case is unqualified, to ensure that the monomer battery voltage in the battery case after simulating use is steady
It is fixed.
This method further includes, when it is described constant-current discharge, constant-current charge and constant-voltage charge successively are carried out to the battery case when,
If battery cell voltage is less than 10V in the battery case, the battery cell voltage in the battery case is unqualified.
This method further includes, when it is described constant-current discharge, constant-current charge and constant-voltage charge successively are carried out to the battery case when,
If the difference of each battery cell voltage is less than 1V in the battery case, the battery cell voltage in the battery case is not conform to
Lattice.
This method further includes, and before carrying out constant-current discharge, constant-current charge or constant-voltage charge to the battery case, first will
The battery case stands 5-30 minutes.
The utility model has the advantages that a kind of battery case charge-discharge test method of the present invention tests battery case by charge and discharge dry run
The electric current of global voltage and battery cell, the numerical value of voltage and temperature and its variation, whether detection battery case can be with charge and discharge, can
To detect the consistency of single battery in battery case, can detecte battery case single battery connection it is whether normal, to avoid prolonging
Adverse effect caused by finding the problem late.
Detailed description of the invention
Fig. 1 is 6 and 16 string battery case process charge and discharge platform of a kind of battery case charge-discharge test method test of the invention
Curve graph；
Fig. 2 is 3 and 32 string battery case process charge and discharge platform of a kind of battery case charge-discharge test method test of the invention
Curve graph.
Specific embodiment
The invention will now be described in further detail with reference to the accompanying drawings.
Fig. 1 and Fig. 2 schematically shows a kind of a kind of battery case charge-discharge test of embodiment according to the present invention
Method.
This kind of battery case charge-discharge test method, this method are as follows:
It detects battery case global voltage and whether battery cell voltage, the voltage to judge battery case is qualified；
Constant-current discharge: so that entire battery case voltage is reached first voltage with the first current discharge, while measuring battery packing list
The electric current and voltage of body battery, calculate the first current fluctuation, first voltage fluctuation and first voltage it is poor, the first current fluctuation is
The statistics of the curent change of each single battery of battery case, first voltage fluctuation are the voltage change of each single battery of battery case
Statistics, the statistics of voltage difference of the first voltage fluctuation between battery case single battery；
Constant-current charge: so that entire battery case voltage is reached first voltage with the charging of the first electric current, while measuring battery packing list
The electric current and voltage of body battery, calculate the second current fluctuation, second voltage fluctuation and second voltage it is poor, the second current fluctuation is
The statistics of the curent change of each single battery of battery case, second voltage fluctuation are the voltage change of each single battery of battery case
Statistics, the statistics of voltage difference of the second voltage fluctuation between battery case single battery；
Constant-voltage charge: being charged with first voltage, while measuring the electric current and voltage of battery case single battery, calculates third
Current fluctuation, tertiary voltage fluctuation and tertiary voltage are poor, and third current fluctuation is the curent change of each single battery of battery case
Statistics, tertiary voltage fluctuation be each single battery of battery case voltage change statistics, tertiary voltage fluctuation be battery case
The statistics of voltage difference between single battery.
Above-mentioned, the first electric current is battery parallel connection number * cell capacity * multiple in battery case, and first voltage is battery
Battery serial number * monomer battery voltage in case.
During the test, the temperature of battery case described in real-time detection.
Global voltage and battery cell voltage, the first current fluctuation of single battery, first voltage when the battery case
Fluctuation and first voltage is poor, the second current fluctuation of single battery, second voltage fluctuate and second voltage is poor, single battery the
Three current fluctuations, tertiary voltage fluctuation and when tertiary voltage is poor, any one parameter is unqualified in temperature, determine that the battery case is
It is unqualified.
This method specifically: it is described the battery case is successively carried out constant-current discharge, constant-current charge and constant-voltage charge it
Before, the numerical value of the battery case global voltage is in single battery serial number single battery into 3 times of battery cases in 2 times of battery cases
When except serial number, the global voltage of the battery case is unqualified.
This method specifically: during the test, when the battery cell voltage in the battery case is less than 5V, the battery
Monomer voltage is unqualified in case.
This method specifically: before successively carrying out constant-current discharge, constant-current charge and constant-voltage charge to the battery case, institute
When stating in battery case that each battery cell first voltage is poor, second voltage difference and tertiary voltage difference are greater than 1V, in the battery case
Battery cell voltage is unqualified.
This method specifically: during the test, when the first current fluctuation of the single battery, the second current fluctuation and
When third current fluctuation is more than 25A, the current fluctuation in the battery case is unqualified.
This method specifically: after successively carrying out constant-current discharge, constant-current charge and constant-voltage charge to battery case, work as battery case
When interior battery cell voltage is less than 10V, judge that the battery cell voltage in the battery case is unqualified, after ensureing simulation use
Battery case in monomer battery voltage stablize.
This method specifically: during the test, when the single battery first voltage fluctuation, second voltage fluctuation and
When tertiary voltage fluctuation is more than 2V, the voltage fluctuation in the battery case be it is unqualified, to ensure in the battery case after simulation use
Monomer Current Voltage stablize.
This method specifically: during the test, when the voltage of single battery each in the battery case is in 2 times of batteries
In case single battery serial number into 3 times of battery cases except single battery serial number when, the voltage difference of the battery case is unqualified.
This method specifically: during the test, should if the temperature of the battery case is in except 20 DEG C -45 DEG C
The temperature of battery case is unqualified.
This method further includes, when it is described constant-current discharge, constant-current charge and constant-voltage charge successively are carried out to the battery case when,
If battery cell voltage is less than 10V in the battery case, the battery cell voltage in the battery case is unqualified；To battery
After case successively carries out constant-current discharge, constant-current charge and constant-voltage charge, when the battery cell voltage in battery case is less than 10V, sentence
The battery cell voltage broken in the battery case is unqualified, to ensure that the monomer battery voltage in the battery case after simulating use is steady
It is fixed.
This method further includes, when it is described constant-current discharge, constant-current charge and constant-voltage charge successively are carried out to the battery case when,
If the first voltage of each battery cell is poor in the battery case, second voltage difference and tertiary voltage difference are less than 1V, the battery
Battery cell voltage in case is unqualified.
This method further includes, and before carrying out constant-current discharge, constant-current charge or constant-voltage charge to the battery case, first will
The battery case stands 5-30 minutes.
In Fig. 1, from test process it can be seen that having a string of battery charging and discharging platform curves and its in 16 string single batteries
Remaining 15 string batteries it is inconsistent, and differ it is larger, after replacement, avoid this cabinet generated in actual moving process it is bad.
In Fig. 2, from test process it can be seen that having a string of battery charging and discharging platform curves and its in 32 string single batteries
Remaining 31 string batteries it is inconsistent, and differ it is larger, after replacement, avoid this cabinet generated in actual moving process it is bad.
The above embodiments are merely illustrative and not limiting of the invention, therefore all according to described in present patent application range
The equivalent change or modification done of method, be included in the scope of the patent application of the present invention.
Claims (10)
1. a kind of charge-discharge test method of battery case, which is characterized in that this method are as follows: detect the global voltage and electricity of battery case
Pond monomer voltage；Constant-current discharge, constant-current charge and constant-voltage charge are successively carried out to the battery case, and detect the battery simultaneously
The electric current and voltage of single battery in case, determine single battery in the battery case according to the electric current of the single battery and voltage
Current fluctuation, voltage fluctuation and voltage difference；During the test, the temperature of battery case described in real-time detection；When the battery
Any one in the global voltage and battery cell voltage of case, the current fluctuation of single battery, voltage fluctuation and voltage difference, temperature
When parameter is unqualified, determine that the battery case is unqualified.
2. a kind of battery case charge-discharge test method according to claim 1, it is characterised in that: this method specifically:
It is described constant-current discharge, constant-current charge and constant-voltage charge successively are carried out to the battery case before, the battery case global voltage
Numerical value be in 2 times of battery cases single battery serial number into 3 times of battery cases except single battery serial number when, the battery case
Global voltage is unqualified；During the test, when the voltage of single battery each in the battery case is in 2 times of battery cases
Single battery serial number into 3 times of battery cases except single battery serial number when, the voltage difference of the battery case is unqualified.
3. a kind of battery case charge-discharge test method according to claim 1 or 2, it is characterised in that: this method specifically:
When the battery cell voltage in the battery case is less than 5V, monomer voltage is unqualified in the battery case.
4. a kind of battery case charge-discharge test method according to claim 1, it is characterised in that: this method specifically:
It is described constant-current discharge, constant-current charge and constant-voltage charge successively are carried out to the battery case before, each battery in the battery case
When the difference of monomer voltage is greater than 1V, the battery cell voltage in the battery case is unqualified.
5. a kind of battery case charge-discharge test method according to claim 1 or 4, it is characterised in that: this method specifically:
During the test, when the current fluctuation of the single battery is more than 25A, the current fluctuation in the battery case is unqualified.
6. a kind of battery case charge-discharge test method according to claim 1 or 4, it is characterised in that: this method specifically:
During the test, when the voltage fluctuation of the single battery is more than 2V, the voltage fluctuation in the battery case is unqualified.
7. a kind of battery case charge-discharge test method according to claim 1, it is characterised in that: this method specifically:
In test process, if the temperature of the battery case is in except 20 DEG C -45 DEG C, the temperature of the battery case is unqualified.
8. a kind of battery case charge-discharge test method according to claim 1, it is characterised in that: this method further includes, when
It is described when successively carrying out constant-current discharge, constant-current charge and constant-voltage charge to the battery case, if battery list in the battery case
Bulk voltage is less than 10V, and the battery cell voltage in the battery case is unqualified；Constant-current discharge, perseverance are successively being carried out to battery case
After current charge and constant-voltage charge, when the battery cell voltage in battery case is less than 10V, the battery cell in the battery case is judged
Voltage is unqualified, is stablized with the monomer battery voltage ensured in the battery case after simulating use.
9. a kind of battery case charge-discharge test method according to claim 1 or 8, it is characterised in that: this method further includes,
When it is described constant-current discharge, constant-current charge and constant-voltage charge successively are carried out to the battery case when, if each in the battery case
The difference of battery cell voltage is less than 1V, and the battery cell voltage in the battery case is unqualified.
10. a kind of battery case charge-discharge test method according to claim 1, it is characterised in that: this method further includes,
Before carrying out constant-current discharge, constant-current charge or constant-voltage charge to the battery case, the battery case is first stood 5-30 minutes.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710955256.1A CN109669136B (en) | 2017-10-13 | 2017-10-13 | Battery box charging and discharging test method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710955256.1A CN109669136B (en) | 2017-10-13 | 2017-10-13 | Battery box charging and discharging test method |
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| CN109669136B CN109669136B (en) | 2021-06-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112946494A (en) * | 2021-01-22 | 2021-06-11 | 广东以诺通讯有限公司 | Automatic testing machine for battery box |
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| CN109669136B (en) | 2021-06-08 |
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