CN105866693B - The choosing method of battery pole ear bond pad locations - Google Patents
The choosing method of battery pole ear bond pad locations Download PDFInfo
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- CN105866693B CN105866693B CN201610222287.1A CN201610222287A CN105866693B CN 105866693 B CN105866693 B CN 105866693B CN 201610222287 A CN201610222287 A CN 201610222287A CN 105866693 B CN105866693 B CN 105866693B
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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
- G01R31/3865—Arrangements for measuring battery or accumulator variables related to manufacture, e.g. testing after manufacture
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Abstract
The present invention relates to the fields of battery technology, the choosing method of battery pole ear bond pad locations is provided, the following steps are included: preparing multiple groups battery, the bond pad locations of the tab of each group battery are different, and the position of solder joint is respectively three kinds of outer drain terminal of the outer drain terminal close to tab, the center close to tab and separate tab；Each group battery is tested for the property, performance test includes one of inner walkway, multiplying power discharging property test and cryogenic property test or two kinds or three kinds any；The bond pad locations of the tab of battery are determined according to the result of performance test.Using the choosing method battery obtained of above-mentioned battery pole ear bond pad locations, internal resistance, multiplying power temperature rise and discharge performance are more superior.
Description
Technical field
The invention belongs to battery technology field more particularly to the choosing methods of battery pole ear bond pad locations.
Background technique
Currently, setting position of the solder joint on tab is more random in existing battery, there is not better method to determine
Solder joint is in the better position on tab, and therefore, that there is internal resistances is higher for existing battery, discharge performance is bad, multiplying power temperature rise is higher
The problem of.
Summary of the invention
The purpose of the present invention is to provide the choosing methods of battery pole ear bond pad locations, it is intended to solve existing battery due to pole
The setting of ear solder joint arbitrarily leads to the problem that its internal resistance is higher, discharge performance is bad and multiplying power temperature rise is higher.
In order to solve the above technical problems, the present invention provides the choosing method of battery pole ear bond pad locations, including following step
It is rapid:
A, prepare multiple groups battery, the bond pad locations of the tab of battery described in each group are different, and the position of solder joint is respectively close
The outer drain terminal of tab, the center close to tab and three kinds of outer drain terminal far from tab；
B, the battery described in each group is tested for the property, and the performance test includes inner walkway, multiplying power discharging property survey
One of examination and cryogenic property test are two kinds or three kinds any；
C, the bond pad locations of the tab of the battery are determined according to the result of the performance test.
The choosing method of battery pole ear bond pad locations provided by the invention the utility model has the advantages that
In the choosing method of above-mentioned battery pole ear bond pad locations, respectively the battery different to three groups of tab bond pad locations into
Row performance test, the tab bond pad locations of three groups of batteries be respectively the outer drain terminal close to tab, the center close to tab and
Three kinds of outer drain terminal far from tab, pass through one of inner walkway, multiplying power discharging property test and cryogenic property test
Either any two kinds or three kinds of test result, come determine battery tab bond pad locations, compared to compared with the prior art,
According to the choosing method battery obtained of above-mentioned battery pole ear bond pad locations, internal resistance, multiplying power temperature rise and discharge performance are more
It is superior.
Detailed description of the invention
Fig. 1 is the flow chart of the choosing method of battery pole ear bond pad locations provided in an embodiment of the present invention；
Fig. 2 is the flow chart of the performance test of the choosing method of battery pole ear bond pad locations provided in an embodiment of the present invention；
Fig. 3 is the process of the cryogenic property test of the choosing method of battery pole ear bond pad locations provided in an embodiment of the present invention
Figure；
Fig. 4 is that the tab in the choosing method of battery pole ear bond pad locations provided in an embodiment of the present invention leans on proximal pole in solder joint
Structural schematic diagram when the outer drain terminal of ear；
Fig. 5 is that the tab in the choosing method of battery pole ear bond pad locations provided in an embodiment of the present invention leans on proximal pole in solder joint
The structural schematic diagram when center of ear；
Fig. 6 is that the tab in the choosing method of battery pole ear bond pad locations provided in an embodiment of the present invention is located at pole in solder joint
Structural schematic diagram when between the outer drain terminal of ear and center；
Fig. 7 is 0 degree of environment and subzero 20 in the choosing method of battery pole ear bond pad locations provided in an embodiment of the present invention
Spend the test result figure of environment；
Fig. 8 is the multiplying power discharging property test in the choosing method of battery pole ear bond pad locations provided in an embodiment of the present invention
Test result figure；
Fig. 9 is the multiplying power discharging property test in the choosing method of battery pole ear bond pad locations provided in an embodiment of the present invention
Another test result figure；
Figure 10 is the test of the inner walkway in the choosing method of battery pole ear bond pad locations provided in an embodiment of the present invention
Result figure.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
It is preferred embodiment provided by the invention as shown in Fig. 1~10.
It should be noted that it can be directly another when component is referred to as " being fixed on " or " being set to " another component
On one component or it may be simultaneously present component placed in the middle.When a component is known as " being connected to " another component, it can
To be directly to another component or may be simultaneously present component placed in the middle.
It should also be noted that, the positional terms such as left and right, upper and lower in the present embodiment, be only each other relative concept or
It is reference with the normal operating condition of product, and should not be regarded as restrictive.
As shown in Figures 1 to 6, the choosing method of battery pole ear bond pad locations provided in this embodiment, comprising the following steps:
A, prepare multiple groups battery, the bond pad locations of the tab of each group battery are different, and the position of solder joint is respectively close to tab
Outer drain terminal, close to the center of tab and far from three kinds of outer drain terminal of tab；It should be noted that in attached drawing 4, label 10 is
Tab, label 11 are the solder joint close to the outer drain terminal of tab, and in attached drawing 5, label 12 is the solder joint close to tab center, in attached drawing 6,
Label 13 is the solder joint outside tab between drain terminal and center, and for attached drawing 4 into attached drawing 6, label 14 is the outer drain terminal of tab；
B, each group battery is tested for the property, the performance test include inner walkway, multiplying power discharging property test with
And one of cryogenic property test or two kinds or three kinds any；
C, the bond pad locations of the tab of battery are determined according to the result of performance test.
As shown in Figures 1 to 6, in the choosing method of above-mentioned battery pole ear bond pad locations, respectively to three groups of tab solder joints
The different battery in position is tested for the property, and the tab bond pad locations of three groups of batteries are respectively the outer drain terminal of close tab, lean on
The center of proximal pole ear and far from three kinds of outer drain terminal of tab, passes through inner walkway, multiplying power discharging property test and low temperature
One of performance test or any two kinds or three kinds of test result, come determine battery tab bond pad locations, phase
Than compared with the prior art, according to the choosing method battery obtained of above-mentioned battery pole ear bond pad locations, internal resistance, multiplying power temperature
It rises and discharge performance is more superior.
Refinement ground, inner walkway are as follows: give each group battery to export an ac signal respectively using AC internal Resistance tester,
And the alternating voltage of each group battery is measured, the internal resistance value of each group battery, internal resistance are obtained finally by the formula scales of Ohm's law
It is worth smaller battery, the bond pad locations of tab are better；
Refinement ground, multiplying power discharging property test are as follows: under conditions of different discharge currents, to each group battery discharge, record
The capacity of each group battery, while temperature measuring device being used to measure the multiplying power temperature of each group battery, under the conditions of different multiplying, capacity is got over
Big and lower multiplying power temperature battery, the bond pad locations of tab are better.
With refining, cryogenic property test includes the preceding preparation of test and test operation, is prepared before testing are as follows: preparation insulating box,
Computer and secondary battery detection device, are equipped with control software in computer, insulating box and secondary battery detection device respectively with electricity
Brain connection, secondary battery detection device are connect with battery；
Test operation are as follows: be respectively placed in each group battery in the low temperature environment of insulating box manufacture, running control software passes through
It controls software and parameter setting is carried out to the detection signal of secondary battery detection device, secondary battery detection device, which applies battery, to be examined
Signal is surveyed, and gives the capacity of battery and Voltage Feedback to control software, control software will record the capacity and voltage of battery, in phase
Under the conditions of charge and discharge, charging capacity or the higher battery of discharge capacity, the bond pad locations of tab are better.
Refinement ground, as shown in fig. 7, low temperature environment includes 0 degree of environment and minus 20 degrees environment in test operation；
When 0 degree of environment, secondary battery detection device charges the battery test, the detection parameters of charging measurement are as follows: permanent
Determining charging current is 0.2C, blanking voltage 4.2V, cut-off current 0.05C, in the identical condition of identical charging current
Under, the higher battery of charging capacity, the bond pad locations of tab are better；
When minus 20 degrees environment, secondary battery detection device carries out discharge test, the detection parameters of discharge test to battery
Are as follows: constant discharge current 0.5C, blanking voltage 3V, discharge current size under the same conditions, discharge capacity is higher
The bond pad locations of battery, tab are better.
In this way, in 0 degree of environment, the charging performance of the battery of test, and in minus 20 degrees environment, the battery of test
Discharge performance.
You need to add is that morning prestige MP-50-32 secondary battery detection device can be used in secondary battery detection device.
Refinement ground, as shown in figure 8, in order to preferably carry out multiplying power discharging property test, in multiplying power discharging property test, respectively
The discharge current of group battery in 1A, 1.5A, 5A, 7.5A, 10A, 12A, 15A, records the capacity of each group battery respectively, and capacity is got over
The bond pad locations of big battery, tab are better.
As shown in figure 9, for the ease of the test to battery progress multiplying power temperature, in multiplying power discharging property test, using survey
When warm instrument surveys the multiplying power temperature of battery, probe is adjacent to by the shell of the probe contacts battery of temperature measuring device, and by adhesive tape
In on shell, the multiplying power temperature according to measured by temperature measuring device, the lower battery of multiplying power temperature, the bond pad locations of tab are got over
It is good.
Specifically, for the battery for preparing that there are different tab bond pad locations, in step A, the standard of each group battery of being more convenient for
Standby operation specifically: choose tab, weld pads are carried out to the different location of tab on welding machine, the position of solder joint is respectively to lean on
The outer drain terminal of proximal pole ear, the center close to tab and the outer drain terminal far from tab, then using the pole with different bond pad locations
Ear makes each group battery.
In order to more easily make each group battery, in step A, welding machine uses ultrasonic bonder, and welding machine welds tab
After solder joint, the tab with different bond pad locations makes each group battery after the processes such as rubberizing, winding.
You need to add is that new power RD-115 ultrasonic bonder can be used in above-mentioned ultrasonic bonder.In step A, rubberizing behaviour
Work can carry out on Bo Lite TJA075 machine.
Specifically, as shown in Figure 10, in order to more accurately measure the internal resistance value of battery, using with different bond pad locations
Tab production each group battery after, and by chemical conversion after, carry out inner walkway by 5 hours of battery standing, then with battery.
Further, the internal resistance value of battery is measured in order to be more accurate, in inner walkway, AC internal Resistance tester is to electricity
The frequency of the ac signal of pond output is 1kHz.
You need to add is that above-mentioned AC internal Resistance tester, which can be used, holds up a day BS-VR3 AC internal Resistance tester.
Specifically, in cryogenic property test, control software is BTS7.5.2.exe.Certainly, it in other embodiments, controls soft
Part can also be that other can be with the matched operational management software of secondary battery detection device.
The above is merely preferred embodiments of the present invention, be not intended to limit the invention, it is all in spirit of the invention and
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within principle.
Claims (9)
1. a kind of choosing method of battery pole ear bond pad locations, which comprises the following steps:
A, prepare multiple groups battery, the bond pad locations of the tab of battery described in each group are different, and the position of solder joint is respectively close to tab
Outer drain terminal, close to the center of tab and far from three kinds of outer drain terminal of tab；
B, the battery described in each group is tested for the property, the performance test include inner walkway, multiplying power discharging property test with
And one of cryogenic property test or two kinds or three kinds any；
C, the bond pad locations of the tab of the battery are determined according to the result of the performance test.
2. the choosing method of battery pole ear bond pad locations as described in claim 1, which is characterized in that the inner walkway are as follows:
It gives battery described in each group to export an ac signal respectively using AC internal Resistance tester, and measures the friendship of battery described in each group
Galvanic electricity pressure obtains the internal resistance value of battery described in each group, the smaller electricity of internal resistance value finally by the formula scales of Ohm's law
The bond pad locations in pond, tab are better.
3. the choosing method of battery pole ear bond pad locations as described in claim 1, which is characterized in that the multiplying power discharging property
Test are as follows: under the conditions of different discharge currents, the battery discharge described in each group records the capacity of battery described in each group, adopts simultaneously
With temperature measuring device measure each group described in battery multiplying power temperature, under the conditions of different multiplying, capacity is bigger and multiplying power temperature is lower
The bond pad locations of the battery, tab are better.
4. the choosing method of battery pole ear bond pad locations as described in claim 1, which is characterized in that the cryogenic property test
Including preparation and test operation before testing, prepare before the test are as follows: prepare insulating box, computer and secondary battery detection device,
Control software is installed in the computer, the insulating box and the secondary battery detection device are connect with the computer respectively,
The secondary battery detection device is connect with the battery；
The test operation are as follows: be respectively placed in battery described in each group in the low temperature environment of the insulating box manufacture, described in operation
Software is controlled, parameter setting is carried out to the detection signal of the secondary battery detection device by the control software, described two
Primary cell detection device applies the detection signal to the battery, and gives the capacity of the battery and Voltage Feedback to the control
Software processed, the control software will record the capacity and voltage of the battery, under the conditions of identical charge and discharge, charging capacity or put
The bigger battery of capacitance, the bond pad locations of tab are better.
5. the choosing method of battery pole ear bond pad locations as claimed in claim 4, which is characterized in that in the test operation,
The low temperature environment includes 0 degree of environment and minus 20 degrees environment；
When 0 degree of environment, the secondary battery detection device carries out charging measurement, the detection ginseng of charging measurement to the battery
Number are as follows: constant charge current 0.2C, blanking voltage 4.2V, cut-off current 0.05C, in the identical item of charging current
Under part, the higher battery of charging capacity, the bond pad locations of tab are better；
When the minus 20 degrees environment, the secondary battery detection device carries out discharge test to the battery, discharge test
Detection parameters are as follows: constant discharge current 0.5C, blanking voltage 3V, discharge current size under the same conditions, electric discharge hold
The higher battery is measured, the bond pad locations of tab are better.
6. the choosing method of battery pole ear bond pad locations as claimed in claim 3, which is characterized in that the multiplying power discharging property
In test, the discharge current of battery described in each group in 1A, 1.5A, 5A, 7.5A, 10A, 12A, 15A, records described in each group respectively
The capacity of battery, the bigger battery of capacity, the bond pad locations of tab are better.
7. the choosing method of battery pole ear bond pad locations as claimed in claim 3, which is characterized in that the multiplying power discharging property
In test, when surveying the multiplying power temperature of the battery using the temperature measuring device, by electricity described in the probe contacts of the temperature measuring device
The shell in pond, and probe is closely attached on shell by adhesive tape, according to multiplying power temperature measured by the temperature measuring device, multiplying power temperature
The lower battery is spent, the bond pad locations of tab are better.
8. the choosing method of battery pole ear bond pad locations as described in any one of claims 1 to 7, which is characterized in that the step
In rapid A, the preparation of battery described in each group is operated specifically: chooses tab, welds on welding machine to the different location of tab
Solder joint, the position of solder joint is respectively the outer drain terminal close to tab, the center close to tab and the outer drain terminal far from tab, then is adopted
Battery described in each group is made of the tab with different bond pad locations.
9. the choosing method of battery pole ear bond pad locations as claimed in claim 8, which is characterized in that the welding machine is using ultrasound
Welding machine, after the welding machine carries out weld pads to tab, the tab with different bond pad locations is after rubberizing, rolling step
Make battery described in each group.
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| CN201610222287.1A CN105866693B (en) | 2016-04-11 | 2016-04-11 | The choosing method of battery pole ear bond pad locations |
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| CN201610222287.1A CN105866693B (en) | 2016-04-11 | 2016-04-11 | The choosing method of battery pole ear bond pad locations |
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| CN105866693B true CN105866693B (en) | 2019-03-26 |
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| CN108152754A (en) * | 2018-01-16 | 2018-06-12 | 上海应用技术大学 | A kind of method for evaluating power battery welding effect quality and the error correction remedial systems based on this method |
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| CN101814592A (en) * | 2010-03-12 | 2010-08-25 | 珠海锂源动力投资有限公司 | Method for connecting polar lug and polar column of lithium ion battery |
| EP2597477A2 (en) * | 2011-11-24 | 2013-05-29 | SK Innovation Co. Ltd. | Apparatus and method for estimating internal resistance of battery |
| CN202498322U (en) * | 2012-02-11 | 2012-10-24 | 合肥国轩高科动力能源有限公司 | Spot welding positioning device for lithium ion battery tab |
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