CN105866693A - Method for selecting lug welding point positions of batteries - Google Patents
Method for selecting lug welding point positions of batteries Download PDFInfo
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- CN105866693A CN105866693A CN201610222287.1A CN201610222287A CN105866693A CN 105866693 A CN105866693 A CN 105866693A CN 201610222287 A CN201610222287 A CN 201610222287A CN 105866693 A CN105866693 A CN 105866693A
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- Prior art keywords
- battery
- lug
- bond pad
- pad locations
- test
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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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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The invention relates to the field of battery technology, and provides a method for selecting lug welding point positions of batteries. The method comprises the following steps of preparing a plurality of sets of batteries, wherein the lug welding point positions of the plurality of sets of batteries are different, the welding point positions can be divided into three types of a position which is next to the exposed end of the lug, a position which is next to the center of the lug and a position that is far from the exposed end of the lug; performing performance testing on each set of batteries, wherein performance testing comprises one item, two random items or three items selected from internal resistance testing, rate discharge performance testing and low temperature performance testing; and determining the lug welding point positions of the batteries according to performance testing results. The battery which is obtained according to the method for selecting the lug welding point positions of the batteries has relatively good internal resistance, relatively good rate temperature increase performance and relatively good discharge performance.
Description
Technical field
The invention belongs to cell art, particularly relate to the choosing method of battery pole ear bond pad locations.
Background technology
At present, in existing battery, its solder joint on lug to arrange position more random, do not have preferable side
Method determines solder joint better position on lug, and therefore, existing battery also exists that internal resistance is higher, electric discharge property
Can not good, problem that multiplying power temperature rise is higher.
Summary of the invention
It is an object of the invention to provide the choosing method of battery pole ear bond pad locations, it is intended to solve existing battery
Cause owing to lug solder joint is arranged arbitrarily that its internal resistance is higher, discharge performance is the best and multiplying power temperature rise is higher asks
Topic.
For solving above-mentioned technical problem, the invention provides the choosing method of battery pole ear bond pad locations, including
Following steps:
A, preparing many Battery packs, the bond pad locations of each lug organizing described battery is different, and the position of solder joint is divided
Wei near the outer drain terminal of lug, near the center of lug and away from the outer drain terminal three kinds of lug；
B, battery described in each group being carried out performance test, described performance test includes that inner walkway, multiplying power are put
In electric performance test and cryogenic property test one or any two kinds or three kinds；
C, result according to described performance test determine the bond pad locations of the lug of described battery.
The beneficial effect of the choosing method of the battery pole ear bond pad locations that the present invention provides:
In the choosing method of above-mentioned battery pole ear bond pad locations, they are different to three groups of lug bond pad locations respectively
Battery carries out performance test, and the lug bond pad locations of this three Battery pack is respectively the outer drain terminal near lug, leans on
The center of proximal pole ear and the outer drain terminal three kinds away from lug, it is surveyed by inner walkway, multiplying power discharging property
One or any two kinds or the test result of three kinds in examination and cryogenic property test, determines battery
The bond pad locations of lug, for the prior art that compares, according to choosing of above-mentioned battery pole ear bond pad locations
The battery that method is obtained, its internal resistance, multiplying power temperature rise and discharge performance are the most superior.
Accompanying drawing explanation
Fig. 1 is the flow chart of the choosing method of the battery pole ear bond pad locations that the embodiment of the present invention provides；
Fig. 2 is the stream of the performance test of the choosing method of the battery pole ear bond pad locations that the embodiment of the present invention provides
Cheng Tu；
Fig. 3 is the cryogenic property test of the choosing method of the battery pole ear bond pad locations that the embodiment of the present invention provides
Flow chart；
Fig. 4 is that the lug in the choosing method of the battery pole ear bond pad locations that the embodiment of the present invention provides is at solder joint
Structural representation when the outer drain terminal of lug；
Fig. 5 is that the lug in the choosing method of the battery pole ear bond pad locations that the embodiment of the present invention provides is at solder joint
Structural representation when the center of lug；
Fig. 6 is that the lug in the choosing method of the battery pole ear bond pad locations that the embodiment of the present invention provides is at solder joint
Structural representation time between outer drain terminal and the center of lug；
Fig. 7 be the embodiment of the present invention provide battery pole ear bond pad locations choosing method in 0 degree environment with
The test result figure of minus 20 degrees environment；
Fig. 8 is the multiplying power discharging in the choosing method of the battery pole ear bond pad locations that the embodiment of the present invention provides
The test result figure that can test；
Fig. 9 is the multiplying power discharging in the choosing method of the battery pole ear bond pad locations that the embodiment of the present invention provides
Another test result figure that can test；
Figure 10 is the inner walkway in the choosing method of the battery pole ear bond pad locations that the embodiment of the present invention provides
Test result figure.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, below in conjunction with accompanying drawing and reality
Execute example, the present invention is further elaborated.Only should be appreciated that specific embodiment described herein
Only in order to explain the present invention, it is not intended to limit the present invention.
As shown in Fig. 1～10, the preferred embodiment provided for the present invention.
It should be noted that when parts are referred to as " being fixed on " or " being arranged at " another parts, and it can be straight
It is connected on another parts or may be simultaneously present parts placed in the middle.When parts are known as " being connected to "
Another parts, it can be directly to another parts or may be simultaneously present parts placed in the middle.
Also, it should be noted the orientation term such as left and right, upper and lower in the present embodiment, it it is only phase each other
To concept or with the normal operating condition of product as reference, and should not be regarded as restrictive.
As shown in Figures 1 to 6, the choosing method of the battery pole ear bond pad locations that the present embodiment provides, including
Following steps:
A, preparing many Battery packs, the bond pad locations of the lug of each Battery pack is different, and the position of solder joint is respectively
Outer drain terminal near lug, the center near lug and the outer drain terminal three kinds away from lug；Need explanation
Being that, in accompanying drawing 4, labelling 10 is lug, labelling 11 is the solder joint near the outer drain terminal of lug, in accompanying drawing 5,
Labelling 12 is the solder joint near lug center, and in accompanying drawing 6, labelling 13 is for being positioned at the outer drain terminal of lug and center
Between solder joint, in accompanying drawing 4 to accompanying drawing 6, labelling 14 is the outer drain terminal of lug；
B, each Battery pack carrying out performance test, described performance test includes inner walkway, multiplying power discharging
In energy test and cryogenic property test one or any two kinds or three kinds；
C, result according to performance test determine the bond pad locations of the lug of battery.
As shown in Figures 1 to 6, in the choosing method of above-mentioned battery pole ear bond pad locations, it is respectively to three groups
The battery that lug bond pad locations is different carries out performance test, and the lug bond pad locations of this three Battery pack is respectively leaned on
The outer drain terminal of proximal pole ear, the center near lug and the outer drain terminal three kinds away from lug, it is surveyed by internal resistance
One or any two kinds or the survey of three kinds in examination, multiplying power discharging property test and cryogenic property test
Test result, determines the bond pad locations of the lug of battery, for the prior art that compares, according to above-mentioned battery
The battery that the choosing method of lug bond pad locations is obtained, its internal resistance, multiplying power temperature rise and discharge performance are the most excellent
More.
Refinement ground, inner walkway is: use AC internal Resistance tester to export an exchange to each Battery pack respectively
The signal of telecommunication, and record the alternating voltage of each Battery pack, the formula scales finally by Ohm's law obtains each group
The internal resistance value of battery, the battery that internal resistance value is the least, the bond pad locations of its lug is the best；
Refinement ground, multiplying power discharging property test is: under conditions of different discharge currents, put each Battery pack
Electricity, records the capacity of each Battery pack, uses temperature measuring device to measure the multiplying power temperature of each Battery pack, not simultaneously
Under the conditions of multiplying power, the battery that capacity is the biggest and multiplying power temperature is the lowest, the bond pad locations of its lug is the best.
Refinement ground, cryogenic property test prepares and test operation before including testing, is prepared as before test: prepare
Calorstat, computer and secondary battery detection device, be provided with control software, calorstat and secondary electricity in computer
Pond detection device is connected with computer respectively, and secondary battery detection device is connected with battery；
Test operation is: is placed in by each Battery pack respectively in the low temperature environment that calorstat manufactures, runs control soft
Part, carries out parameter setting by controlling software to the detection signal of secondary battery detection device, and secondary cell is examined
Survey device and battery is applied detection signal, and capacity and the Voltage Feedback of battery are given and controlled software, control soft
Part will record capacity and the voltage of battery, and under the conditions of identical discharge and recharge, charging capacity or discharge capacity are the highest
Battery, the bond pad locations of its lug is the best.
Refinement ground, as it is shown in fig. 7, in test operation, low temperature environment includes 0 degree of environment and minus 20 degrees ring
Border；
During 0 degree of environment, secondary battery detection device is charged test to battery, the detection ginseng of charging measurement
Number is: constant charge current is 0.2C, and blanking voltage is 4.2V, and cut-off current is 0.05C, fills identical
Under conditions of electricity size of current is identical, the battery that charging capacity is the highest, the bond pad locations of its lug is the best；
During minus 20 degrees environment, secondary battery detection device carries out discharge test to battery, the inspection of discharge test
Survey parameter is: constant discharge current is 0.5C, and blanking voltage is 3V, at the bar that discharge current size is identical
Under part, the battery that discharge capacity is the highest, the bond pad locations of its lug is the best.
So, when 0 degree of environment, the charging performance of the battery of test, and when minus 20 degrees environment, survey
The discharge performance of the battery of examination.
You need to add is that, secondary battery detection device can use prestige MP-50-32 secondary cell detection in morning dress
Put.
Refinement ground, as shown in Figure 8, in order to preferably carry out multiplying power discharging property test, multiplying power discharging property
In test, the discharge current of each Battery pack is respectively at 1A, 1.5A, 5A, 7.5A, 10A, 12A, 15A
Time, recording the capacity of each Battery pack, the battery that capacity is the biggest, the bond pad locations of its lug is the best.
As it is shown in figure 9, for the ease of the test that battery is carried out multiplying power temperature, in multiplying power discharging property test,
When using the multiplying power temperature that battery surveyed by temperature measuring device, by the shell of the probe contacts battery of temperature measuring device, and lead to
Crossing adhesive tape to be closely attached on shell by probe, according to the multiplying power temperature measured by temperature measuring device, multiplying power temperature is the lowest
Battery, the bond pad locations of its lug is the best.
Specifically, the battery with different lug bond pad locations, in step A, each group are prepared in order to be more convenient for
The preparation of battery operates particularly as follows: choose lug, on welding machine, the diverse location of lug is carried out weld pads,
The position of solder joint is respectively the outer drain terminal near lug, the center near lug and the outer drain terminal away from lug,
Use again and there is the lug of different bond pad locations to make each Battery pack.
In order to make each Battery pack more easily, in step A, welding machine uses ultrasonic bonder, and welding machine is to lug
After carrying out weld pads, the lug with different bond pad locations makes respectively after the operation such as rubberizing, winding
Battery pack.
You need to add is that, above-mentioned ultrasonic bonder can use new power RD-115 ultrasonic bonder.In step A,
Its rubberizing operation can be carried out on Bo Lite TJA075 machine.
Specifically, as shown in Figure 10, in order to more accurately record the internal resistance value of battery, use and there is difference
After the lug of bond pad locations makes each Battery pack, and after chemical conversion, by battery standing 5 hours, then use
Battery carries out inner walkway.
Further, in order to more accurately record the internal resistance value of battery, in inner walkway, AC internal Resistance is surveyed
The frequency of the ac signal that examination instrument exports to battery is 1kHz.
You need to add is that, above-mentioned AC internal Resistance tester can use holds up a day BS-VR3 AC internal Resistance tester.
Specifically, in cryogenic property test, control software is BTS7.5.2.exe.Certainly, other embodiments
In, control the operational management software that software can also mate with secondary battery detection device for other.
These are only presently preferred embodiments of the present invention, not in order to limit the present invention, all the present invention's
Any amendment, equivalent and the improvement etc. made within spirit and principle, should be included in the guarantor of the present invention
Within the scope of protecting.
Claims (10)
1. the choosing method of a battery pole ear bond pad locations, it is characterised in that comprise the following steps:
A, preparing many Battery packs, the bond pad locations of each lug organizing described battery is different, and the position of solder joint is divided
Wei near the outer drain terminal of lug, near the center of lug and away from the outer drain terminal three kinds of lug；
B, battery described in each group being carried out performance test, described performance test includes that inner walkway, multiplying power are put
In electric performance test and cryogenic property test one or any two kinds or three kinds；
C, result according to described performance test determine the bond pad locations of the lug of described battery.
2. the choosing method of battery pole ear bond pad locations as claimed in claim 1, it is characterised in that described
Inner walkway is: use AC internal Resistance tester respectively to one ac signal of battery output described in each group,
And recording the alternating voltage of battery described in each group, the formula scales finally by Ohm's law obtains described in each group
The internal resistance value of battery, the described battery that internal resistance value is the least, the bond pad locations of its lug is the best.
3. the choosing method of battery pole ear bond pad locations as claimed in claim 1, it is characterised in that described
Multiplying power discharging property test is: under the conditions of different discharge currents, and to battery discharge described in each group, record is each
Organize the capacity of described battery, use temperature measuring device to measure the multiplying power temperature of battery described in each group, difference times simultaneously
Under the conditions of rate, the described battery that capacity is the biggest and multiplying power temperature is the lowest, the bond pad locations of its lug is the best.
4. the choosing method of battery pole ear bond pad locations as claimed in claim 1, it is characterised in that described
Cryogenic property test prepares and test operation before including testing, and is prepared as before described test: preparation calorstat,
Computer and secondary battery detection device, be provided with control software, described calorstat and described two in described computer
Primary cell detection device is connected with described computer respectively, and described secondary battery detection device is connected with described battery；
Described test operation is: be placed in by battery described in each group respectively in the low temperature environment that described calorstat manufactures,
Run described control software, by described control software, the detection signal of described secondary battery detection device is entered
Line parameter sets, and described secondary battery detection device applies described detection signal to described battery, and by described
The capacity of battery and Voltage Feedback give described control software, and described control software will record the capacity of described battery
And voltage, under the conditions of identical discharge and recharge, charging capacity or the biggest described battery of discharge capacity, its lug
Bond pad locations the best.
5. the choosing method of battery pole ear bond pad locations as claimed in claim 4, it is characterised in that described
In test operation, described low temperature environment includes 0 degree of environment and minus 20 degrees environment；
During described 0 degree of environment, described secondary battery detection device is charged test, charging to described battery
The detection parameter of test is: constant charge current is 0.2C, and blanking voltage is 4.2V, and cut-off current is 0.05C,
Under conditions of charging current is identical, the described battery that charging capacity is the highest, the bond pad locations of its lug
The best；
During described minus 20 degrees environment, described secondary battery detection device carries out discharge test to described battery,
The detection parameter of discharge test is: constant discharge current is 0.5C, and blanking voltage is 3V, at discharge current
Under conditions of size is identical, the described battery that discharge capacity is the highest, the bond pad locations of its lug is the best.
6. the choosing method of battery pole ear bond pad locations as claimed in claim 3, it is characterised in that described
In multiplying power discharging property test, each discharge current organizing described battery respectively 1A, 1.5A, 5A, 7.5A,
When 10A, 12A, 15A, record the capacity of battery described in each group, the described battery that capacity is the biggest, its lug
Bond pad locations the best.
7. the choosing method of battery pole ear bond pad locations as claimed in claim 3, it is characterised in that described
In multiplying power discharging property test, when using the multiplying power temperature that described battery surveyed by described temperature measuring device, by described survey
The shell of battery described in the probe contacts of temperature instrument, and by adhesive tape, probe is closely attached on shell, according to institute
State the multiplying power temperature measured by temperature measuring device, the described battery that multiplying power temperature is the lowest, the bond pad locations of its lug
The best.
8. the choosing method of the battery pole ear bond pad locations as described in any one of claim 1～7, its feature exists
In, in described step A, each preparation organizing described battery operates particularly as follows: choose lug, right on welding machine
The diverse location of lug carries out weld pads, and the position of solder joint is respectively the outer drain terminal near lug, near pole
The center of ear and the outer drain terminal away from lug, then use and there is the lug of different bond pad locations to make each group
Described battery.
9. the choosing method of battery pole ear bond pad locations as claimed in claim 8, it is characterised in that described
Welding machine uses ultrasonic bonder, after described welding machine carries out weld pads to lug, has different bond pad locations
Lug makes battery described in each group after rubberizing, rolling step.
10. the choosing method of battery pole ear bond pad locations as claimed in claim 8, it is characterised in that adopt
Battery described in each group is made with the lug with different bond pad locations, and after chemical conversion, by quiet for described battery
Put 5 hours, then carry out described inner walkway with described battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610222287.1A CN105866693B (en) | 2016-04-11 | 2016-04-11 | The choosing method of battery pole ear bond pad locations |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610222287.1A CN105866693B (en) | 2016-04-11 | 2016-04-11 | The choosing method of battery pole ear bond pad locations |
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| CN105866693A true CN105866693A (en) | 2016-08-17 |
| CN105866693B CN105866693B (en) | 2019-03-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN202498322U (en) * | 2012-02-11 | 2012-10-24 | 合肥国轩高科动力能源有限公司 | Lithium ion battery tab spot welding positioning device |
| CN103063396A (en) * | 2012-12-27 | 2013-04-24 | 天津力神电池股份有限公司 | Test method for reliability of polymer battery |
| EP2597477A2 (en) * | 2011-11-24 | 2013-05-29 | SK Innovation Co. Ltd. | Apparatus and method for estimating internal resistance of battery |
| CN104749482A (en) * | 2015-03-25 | 2015-07-01 | 中航锂电（洛阳）有限公司 | Method for testing welding reliability of battery core |
| KR20160006443A (en) * | 2014-07-09 | 2016-01-19 | 현대모비스 주식회사 | Battery System and Method for Operating Internal Resistance |
-
2016
- 2016-04-11 CN CN201610222287.1A patent/CN105866693B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | Lithium ion battery tab spot welding positioning device |
| CN103063396A (en) * | 2012-12-27 | 2013-04-24 | 天津力神电池股份有限公司 | Test method for reliability of polymer battery |
| KR20160006443A (en) * | 2014-07-09 | 2016-01-19 | 현대모비스 주식회사 | Battery System and Method for Operating Internal Resistance |
| CN104749482A (en) * | 2015-03-25 | 2015-07-01 | 中航锂电（洛阳）有限公司 | Method for testing welding reliability of battery core |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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