CN103427095A - Manufacturing method of high-capacity power-type battery pack - Google Patents
Manufacturing method of high-capacity power-type battery pack Download PDFInfo
- Publication number
- CN103427095A CN103427095A CN2013103552451A CN201310355245A CN103427095A CN 103427095 A CN103427095 A CN 103427095A CN 2013103552451 A CN2013103552451 A CN 2013103552451A CN 201310355245 A CN201310355245 A CN 201310355245A CN 103427095 A CN103427095 A CN 103427095A
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- Prior art keywords
- battery pack
- capacity power
- manufacture method
- welding
- cell
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract description 19
- 238000012360 testing method Methods 0.000 claims abstract description 17
- 238000000034 method Methods 0.000 claims description 18
- 230000001681 protective effect Effects 0.000 claims description 9
- 230000005855 radiation Effects 0.000 claims description 9
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 8
- 229910052782 aluminium Inorganic materials 0.000 claims description 7
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 7
- 239000003792 electrolyte Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 7
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 6
- 238000005476 soldering Methods 0.000 claims description 6
- 230000004888 barrier function Effects 0.000 claims description 5
- 239000004411 aluminium Substances 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 4
- 229910000570 Cupronickel Inorganic materials 0.000 claims description 3
- 229910052493 LiFePO4 Inorganic materials 0.000 claims description 3
- 229910002097 Lithium manganese(III,IV) oxide Inorganic materials 0.000 claims description 3
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 230000000903 blocking effect Effects 0.000 claims description 3
- 238000004364 calculation method Methods 0.000 claims description 3
- YOCUPQPZWBBYIX-UHFFFAOYSA-N copper nickel Chemical compound [Ni].[Cu] YOCUPQPZWBBYIX-UHFFFAOYSA-N 0.000 claims description 3
- 230000002950 deficient Effects 0.000 claims description 3
- 238000005538 encapsulation Methods 0.000 claims description 3
- 238000007747 plating Methods 0.000 claims description 3
- 229920000642 polymer Polymers 0.000 claims description 3
- KLARSDUHONHPRF-UHFFFAOYSA-N [Li].[Mn] Chemical compound [Li].[Mn] KLARSDUHONHPRF-UHFFFAOYSA-N 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 150000002641 lithium Chemical class 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 235000011837 pasties Nutrition 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Classifications
-
- Y02E60/12—
Landscapes
- Connection Of Batteries Or Terminals (AREA)
- Secondary Cells (AREA)
Abstract
Disclosed is a manufacturing method of a high-capacity power-type battery pack. The manufacturing method includes the following steps: providing single batteries, testing and sorting the single batteries, performing battery combining and arranging on the single batteries, introducing a heat-dissipating suite, performing serial-parallel connection welding, connecting output and input terminals of a battery pack with a protection circuit and a management device, and performing various tests on the battery pack.
Description
Technical field
The invention belongs to lithium series primary cell technical field, particularly relate to a kind of preparation method of large capacity lithium-manganese cell.
Background technology
At first lithium-manganese cell is succeeded in developing in Japan in 1975, has developed into the lithium battery that existing market is most widely used, output is maximum, is the battery kind that in lithium series primary cell, price is minimum, fail safe is best.The primary cell that current known lithium-manganese cell is the charge types such as cylindrical, button, flexible package.Find that through retrieval Granted publication number is that CN101916879B, name are called the patent of invention of " high capacity cylindrical lithium-manganese cell structure and preparation method thereof ", comprise that anodal battery core outer surface is enclosed with a barrier film, the lithium band is arranged between barrier film and box hat, the lid group is positioned at the upper end of box hat, anodal stem stem is positioned at the centre position of covering group, the metal intercell connector is connected with anodal stem stem, on the lid group, liquid injection hole is arranged, be useful on the sealing nail of sealing liquid injection hole, the bottom in box hat is useful on the insulating trip of positive plate and the isolation of lithium band.Although the present invention has improved battery capacity, reduced material cost, but be difficult to meet the use that capacity requires the large-sized power device more than 100Ah, and battery is in full charging state, if be placed in for a long time device, device is under transportation or obsolete state, due to the self discharge of battery, not only there is potential safety hazard, also shorten storage and the useful life of battery.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of manufacture method of large-capacity power type battery pack.
Technical scheme of the present invention is as follows:
A kind of manufacture method of large-capacity power type battery pack; comprise the following steps: cell is provided; the cell testing, sorting; the heat radiation external member is arranged, introduced to the cell battery combination; carry out the connection in series-parallel welding; battery pack output input terminal connects protective circuit and management devices, the every test of battery pack.
The described cell that provides is: adopt LiMn2O4, ternary material or LiFePO4 as positive pole, negative pole adopts: graphite-like, and diaphragm paper is the above barrier film of 25um, electrolyte is overcharge resistance performance, the aluminum hull that high temperature resistant type electrolyte is made, cylinder or polymer battery.
Described cell testing, sorting is: first carry out high temperature and shelve 7 days, then capacity is according to the 1%-3% deviation of the nominal capacity stepping of being classified again, internal resistance is carried out sorting according to 5%-10%; Voltage carries out sorting according to 0.01V.
The heat radiation external member is arranged, introduced to described cell battery combination: carry out permutation and combination according to both provisioning request size and string requirement, install the heat radiation external member additional, adopt particular jig to carry out.
Described welding adopts electric resistance welding, is welded to connect sheet and adopts copper nickel plating or pure nickel material, and adopting resistance welded can effectively reduce heat, to compare soldering tin technique safe and reliable, and fraction defective at least reduces more than 10%.
Described battery pack output input terminal connects protective circuit and management devices is: the battery pack after welding is carried out to the pyrocondensation encapsulation, to connect output carry out protective circuit and management devices according to welding, adopt the special-purpose aluminium copper-clad of large electric current line, soldering tin technique is welded, and requires firm welding, attractive in appearance, the single group of each battery pack has the overcurrent blocking-up, cross and put blocking-up, short circuit blocking-up, high temperature block function; Total cell managing device has input current voltage protection restriction and warning function, when the single group appearance of one of them battery pack is abnormal, and the assurance battery pack fail safe of can effectively blocking and quit work.
The every test of described battery pack is: battery pack is carried out to the charge and discharge cycles test, and after vibration 30min and high temperature are deposited 24 hours, the pressure drop of measuring and calculation battery pack, resistance.
Advantage and good effect that the present invention has are:
The present invention adopts the three-dimensional aluminium of large porosity or three-dimensional nickel as plus plate current-collecting body, be pressed into slim positive plate at plus plate current-collecting body two sided coatings pasty state cathode mix, realized the high power discharge of battery, the battery discharge multiplying power can reach 0.2C-0.4C, and the cell capacity can reach 100Ah-500Ah; Cell is connected into battery pack, can be applied in high power, high-octane large-sized power equipment as high power, high-octane large-sized power type battery pack;
The present invention adopts pole plate group and the electrolyte in battery to separate the mode of depositing, battery does not have voltage between positive and negative electrode in transportation and long-time storage process, there is no self discharge, can not form internal short-circuit while being subject to external force or unexpected abuse and activate and release energy, improved battery security, extend storage life, reached 10～15 years.
The present invention adopts the assembling of the stacked pole plate of rectangle positive/negative plate to be fitted in metal battery shell, between positive and negative electrode guide lug and pole, by the rivet riveted joint of colding pressing, has improved the mechanical strength of battery, has further improved the safety applications of battery.
Embodiment
Below the present invention is described in further detail.
Embodiment 1
A kind of manufacture method of large-capacity power type battery pack; comprise the following steps: cell is provided; the cell testing, sorting; the heat radiation external member is arranged, introduced to the cell battery combination; carry out the connection in series-parallel welding; battery pack output input terminal connects protective circuit and management devices, the every test of battery pack.
The described cell that provides is: adopt LiMn2O4, ternary material or LiFePO4 as positive pole, negative pole adopts: graphite-like, and diaphragm paper is the above barrier film of 25um, electrolyte is overcharge resistance performance, the aluminum hull that high temperature resistant type electrolyte is made, cylinder or polymer battery.
Described cell testing, sorting is: first carry out high temperature and shelve 7 days, then capacity is according to the 1%-3% deviation of the nominal capacity stepping of being classified again, internal resistance is carried out sorting according to 5%-10%; Voltage carries out sorting according to 0.01V.
The heat radiation external member is arranged, introduced to described cell battery combination: carry out permutation and combination according to both provisioning request size and string requirement, install the heat radiation external member additional, adopt particular jig to carry out.
Described welding adopts electric resistance welding, is welded to connect sheet and adopts copper nickel plating or pure nickel material, and adopting resistance welded can effectively reduce heat, to compare soldering tin technique safe and reliable, and fraction defective at least reduces more than 10%.
Described battery pack output input terminal connects protective circuit and management devices is: the battery pack after welding is carried out to the pyrocondensation encapsulation, to connect output carry out protective circuit and management devices according to welding, adopt the special-purpose aluminium copper-clad of large electric current line, soldering tin technique is welded, and requires firm welding, attractive in appearance, the single group of each battery pack has the overcurrent blocking-up, cross and put blocking-up, short circuit blocking-up, high temperature block function; Total cell managing device has input current voltage protection restriction and warning function, when the single group appearance of one of them battery pack is abnormal, and the assurance battery pack fail safe of can effectively blocking and quit work.
The every test of described battery pack is: battery pack is carried out to the charge and discharge cycles test, and after vibration 30min and high temperature are deposited 24 hours, the pressure drop of measuring and calculation battery pack, resistance.
Although above, the preferred embodiments of the present invention are described; but the invention is not restricted to above-mentioned embodiment; above-mentioned embodiment is only schematic rather than limited determinate; those of ordinary skill in the art is under enlightenment of the present invention; under the prerequisite without prejudice to aim of the present invention and claim; can make like multiple types and meaning, within such conversion all falls into protection scope of the present invention.
Claims (7)
1. the manufacture method of a large-capacity power type battery pack; comprise the following steps: cell is provided; the cell testing, sorting; the heat radiation external member is arranged, introduced to the cell battery combination; carry out the connection in series-parallel welding; battery pack output input terminal connects protective circuit and management devices, the every test of battery pack.
2. the manufacture method of a kind of large-capacity power type battery pack as claimed in claim 1, it is characterized in that: the described cell that provides is: adopt LiMn2O4, ternary material or LiFePO4 as positive pole, negative pole adopts: graphite-like, diaphragm paper is the above barrier film of 25um, electrolyte is overcharge resistance performance, the aluminum hull that high temperature resistant type electrolyte is made, cylinder or polymer battery.
3. the manufacture method of a kind of large-capacity power type battery pack as claimed in claim 1, it is characterized in that: described cell testing, sorting is: first carry out high temperature and shelve 7 days, again capacity is according to the 1%-3% deviation of the nominal capacity stepping of being classified again, and internal resistance is carried out sorting according to 5%-10%; Voltage carries out sorting according to 0.01V.
4. the manufacture method of a kind of large-capacity power type battery pack as claimed in claim 1, it is characterized in that: described cell battery combination is arranged, is introduced the heat radiation external member and is: according to both permutation and combination was carried out in provisioning request size and string requirement, install the heat radiation external member additional, adopt particular jig to carry out.
5. the manufacture method of a kind of large-capacity power type battery pack as claimed in claim 1, it is characterized in that: described welding adopts electric resistance welding, be welded to connect sheet and adopt copper nickel plating or pure nickel material, adopting resistance welded can effectively reduce heat, to compare soldering tin technique safe and reliable, and fraction defective at least reduces more than 10%.
6. the manufacture method of a kind of large-capacity power type battery pack as claimed in claim 1, it is characterized in that: described battery pack output input terminal connects protective circuit and management devices is: the battery pack after welding is carried out to the pyrocondensation encapsulation, to connect output carry out protective circuit and management devices according to welding, adopt the special-purpose aluminium copper-clad of large electric current line, soldering tin technique is welded, require firm welding, attractive in appearance, the single group of each battery pack has the overcurrent blocking-up, cross and put blocking-up, the short circuit blocking-up, the high temperature block function; Total cell managing device has input current voltage protection restriction and warning function, when the single group appearance of one of them battery pack is abnormal, and the assurance battery pack fail safe of can effectively blocking and quit work.
7. the manufacture method of a kind of large-capacity power type battery pack as claimed in claim 1, it is characterized in that: the every test of described battery pack is: battery pack is carried out to the charge and discharge cycles test, after vibration 30min and high temperature are deposited 24 hours, the pressure drop of measuring and calculation battery pack, resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103552451A CN103427095A (en) | 2013-08-16 | 2013-08-16 | Manufacturing method of high-capacity power-type battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103552451A CN103427095A (en) | 2013-08-16 | 2013-08-16 | Manufacturing method of high-capacity power-type battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103427095A true CN103427095A (en) | 2013-12-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103552451A Pending CN103427095A (en) | 2013-08-16 | 2013-08-16 | Manufacturing method of high-capacity power-type battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103427095A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198943A (en) * | 2014-08-05 | 2014-12-10 | 深圳市拓思创新科技有限公司 | Performance detection method and system for lithium battery pack |
| CN106099222A (en) * | 2016-07-01 | 2016-11-09 | 合肥天馈信息技术有限公司 | A kind of communication accumulator |
| CN106329017A (en) * | 2016-11-03 | 2017-01-11 | 王坚 | Assembling technique for new energy power battery |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101924247A (en) * | 2010-07-29 | 2010-12-22 | 江苏双登集团有限公司 | Lithium ion battery grouping method |
| US20110086255A1 (en) * | 2009-10-14 | 2011-04-14 | Micro Power Electronics, Inc. | Temporary insulator for battery packs and associated systems and methods |
| CN201956409U (en) * | 2011-01-28 | 2011-08-31 | 超威电源有限公司 | Assembling and connecting device for lithium power battery |
| CN103208655A (en) * | 2013-03-04 | 2013-07-17 | 八叶(厦门)新能源科技有限公司 | Grouping method for power lithium ion batteries |
-
2013
- 2013-08-16 CN CN2013103552451A patent/CN103427095A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20110086255A1 (en) * | 2009-10-14 | 2011-04-14 | Micro Power Electronics, Inc. | Temporary insulator for battery packs and associated systems and methods |
| CN101924247A (en) * | 2010-07-29 | 2010-12-22 | 江苏双登集团有限公司 | Lithium ion battery grouping method |
| CN201956409U (en) * | 2011-01-28 | 2011-08-31 | 超威电源有限公司 | Assembling and connecting device for lithium power battery |
| CN103208655A (en) * | 2013-03-04 | 2013-07-17 | 八叶(厦门)新能源科技有限公司 | Grouping method for power lithium ion batteries |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104198943A (en) * | 2014-08-05 | 2014-12-10 | 深圳市拓思创新科技有限公司 | Performance detection method and system for lithium battery pack |
| CN104198943B (en) * | 2014-08-05 | 2018-08-28 | 深圳市拓思创新科技有限公司 | A kind of lithium battery pack method for testing performance and system |
| CN106099222A (en) * | 2016-07-01 | 2016-11-09 | 合肥天馈信息技术有限公司 | A kind of communication accumulator |
| CN106329017A (en) * | 2016-11-03 | 2017-01-11 | 王坚 | Assembling technique for new energy power battery |
| CN106329017B (en) * | 2016-11-03 | 2019-02-15 | 王坚 | A kind of packaging technology for new energy resource power battery |
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| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20131204 |