CN105382407A - Soft-packaged cell electrode lug welding and positioning fixture and welding method thereof - Google Patents
Soft-packaged cell electrode lug welding and positioning fixture and welding method thereof Download PDFInfo
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- CN105382407A CN105382407A CN201510953909.3A CN201510953909A CN105382407A CN 105382407 A CN105382407 A CN 105382407A CN 201510953909 A CN201510953909 A CN 201510953909A CN 105382407 A CN105382407 A CN 105382407A
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- welding
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- positioning fixture
- fixture
- pole piece
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- 238000003466 welding Methods 0.000 title claims abstract description 82
- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims description 3
- 239000005751 Copper oxide Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 229910052799 carbon Inorganic materials 0.000 claims description 3
- 229910000431 copper oxide Inorganic materials 0.000 claims description 3
- 229910052742 iron Inorganic materials 0.000 claims description 3
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 3
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 abstract description 6
- 229910001416 lithium ion Inorganic materials 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 2
- 230000000052 comparative effect Effects 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009459 flexible packaging Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/10—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating making use of vibrations, e.g. ultrasonic welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K37/00—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass
- B23K37/04—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work
- B23K37/0408—Auxiliary devices or processes, not specially adapted for a procedure covered by only one of the other main groups of this subclass for holding or positioning work for planar work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Secondary Cells (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
技术领域 technical field
本发明涉及电池制备领域，具体涉及锂离子生产设备或方法。 The invention relates to the field of battery preparation, in particular to lithium ion production equipment or methods.
背景技术 Background technique
包装锂离子电池以其能量密度高、循环寿命好及其制作形式多样化等优点而受到人们的青睐，并成为目前锂离子电池的主流,而极耳焊接则是软包装锂离子电池的关键工序，其焊接质量的直接对锂离子电池的合格率、电阻及其倍率性能造成重要影响,目前极耳焊接大多采用极耳与电芯极耳焊接，容易造成虚焊、脱焊及其错位，影响其软包电池的电池品质及合格率。 Packaging lithium-ion batteries are favored by people because of their high energy density, good cycle life and diverse production forms, and have become the mainstream of lithium-ion batteries at present. Tab welding is a key process for flexible packaging lithium-ion batteries. The quality of its welding directly has an important impact on the pass rate, resistance and rate performance of lithium-ion batteries. At present, most of the tabs are welded with the tabs of the battery core, which is easy to cause virtual welding, desoldering and dislocation, affecting its The battery quality and pass rate of pouch batteries.
虽然目前国内有通过焊接定位夹具焊接极耳设设备，比如专利（CN204538113U）一种软包电芯极耳焊接夹具，软包电芯极耳焊接夹具使软包锂电池极耳焊接时不易错位，保证电芯在封装的时候极耳在极耳槽内,但是其操作性不强，适用性差及其生产效率低下。 Although there is currently domestic equipment for welding tabs through welding positioning fixtures, such as the patent (CN204538113U) a soft-packed battery tab welding fixture, the soft-packed battery tab welding fixture makes it difficult for the soft-packed lithium battery tab to be misplaced when welding. It is guaranteed that the tabs are in the tab slots when the cells are packaged, but the operability is not strong, the applicability is poor and the production efficiency is low.
发明内容 Contents of the invention
本发明公开了一种软包电芯极耳焊接定位夹具及其焊接方法，提供了一种焊接工艺简单，提高了焊接效率,并且有效防止虚焊、脱焊及焊接点不完整的问题，提高极耳焊接质量。 The invention discloses a soft-packed electric core lug welding positioning fixture and a welding method thereof, provides a simple welding process, improves welding efficiency, and effectively prevents the problems of virtual welding, desoldering and incomplete welding points, and improves Tab welding quality.
本发明提供一种软包电芯极耳焊接定位夹具及其焊接方法，所述的定位夹具的一面设有极片定位槽1,极片定位槽1的底部设有水平仪4和多个可移动定位销3，极片定位槽1在顶部设有焊接孔6，焊接孔6的一侧设有卡槽2,所述的可移动定位销3穿过到定位夹另一面,具定位夹具的另一面设有滑轨5,滑轨5位于两个可移动定位销3之间。 The invention provides a soft-packed battery tab welding positioning fixture and its welding method. One side of the positioning fixture is provided with a pole piece positioning groove 1, and the bottom of the pole piece positioning groove 1 is provided with a level gauge 4 and a plurality of movable The positioning pin 3 and the pole piece positioning groove 1 are provided with a welding hole 6 on the top, and one side of the welding hole 6 is provided with a card slot 2. The movable positioning pin 3 passes through to the other side of the positioning clamp, and the other side of the positioning clamp is provided. One side is provided with a slide rail 5, and the slide rail 5 is located between two movable positioning pins 3.
所述的焊接方法包括以下生产步骤: Described welding method comprises following production steps:
步骤①通过可移动定位销3将定位夹具定位在超声波焊接机台之中; Step ① Position the positioning fixture in the ultrasonic welding machine through the movable positioning pin 3;
步骤②通过水平仪4调整定位夹具,使其焊接机的焊头与卡槽2的底面处于平行状态; Step ②Adjust the positioning fixture through the level meter 4, so that the welding head of the welding machine is parallel to the bottom surface of the card slot 2;
步骤③将电芯和极耳分别放在极片定位槽1和卡槽2中; Step ③ Put the battery cell and the tabs in the pole piece positioning slot 1 and the card slot 2 respectively;
步骤④移动滑轨5使极耳的焊接处与超声波焊接机焊头相对应,即可对极耳焊接。 Step ④ Move the slide rail 5 so that the welding part of the tab corresponds to the welding head of the ultrasonic welding machine, and then the tab can be welded.
所述定位夹具以下材料配比而成：氧化铝1～5%、铁70～95%、碳1～20%、铝1～2%、氧化钠1～2%、氧化铜5～8。 The positioning fixture is made of the following materials: 1-5% aluminum oxide, 70-95% iron, 1-20% carbon, 1-2% aluminum, 1-2% sodium oxide, and 5-8% copper oxide.
对极耳焊接的接触面积及其拉伸强度做实验测试，结果为：所焊接极耳的焊接面积为99%，98%，97%，远高于传统比例的90%，同时在拉伸强度分别为：90N/mm，87N/mm，82N/mm，远高于传统对比例的65N/mm。其原因由于水平仪使其极耳、电芯和焊接机焊头相互平行，使其焊接面积增大，同时采用上述材料增强超声的反弹，使焊接口各部位都平均振荡发热，焊接就更牢固了，增从而提高其拉伸强度，提高了焊接效率,并且有效防止虚焊、脱焊及焊接点不完整的问题，提高极耳焊接质量。 The contact area and tensile strength of the tab welding are tested experimentally. The result is: the welding area of the welded tab is 99%, 98%, 97%, which is much higher than the traditional ratio of 90%. At the same time, the tensile strength They are: 90N/mm, 87N/mm, 82N/mm, which are much higher than 65N/mm of the traditional comparative example. The reason is that the level makes the lugs, the battery core and the welding head of the welding machine parallel to each other, which increases the welding area. At the same time, the above materials are used to enhance the ultrasonic rebound, so that all parts of the welding joint oscillate and heat on average, and the welding is stronger. , so as to increase its tensile strength, improve welding efficiency, and effectively prevent the problems of virtual welding, desoldering and incomplete welding points, and improve the quality of tab welding.
附图说明 Description of drawings
图1是本发明的正面结构示意图。 Fig. 1 is a schematic view of the front structure of the present invention.
图2是本发明的背面结构示意图。 Fig. 2 is a schematic diagram of the back structure of the present invention.
图1-2中符号说明：极片定位槽1、卡槽2、可移动定位销3、滑轨5、水平仪4、焊接孔6。 Explanation of symbols in Figure 1-2: pole piece positioning groove 1, card slot 2, movable positioning pin 3, slide rail 5, spirit level 4, welding hole 6.
具体实施方式 detailed description
如图1-2所示，一种软包电芯极耳焊接定位夹具及其焊接方法，所述的定位夹具的一面设有极片定位槽1,极片定位槽1的底部设有水平仪4和多个可移动定位销3，极片定位槽1在顶部设有焊接孔6,焊接孔6的一侧设有卡槽2,所述的可移动定位销3穿过到定位夹另一面,具定位夹具的另一面设有滑轨5,滑轨5位于两个可移动定位销3之间。 As shown in Figure 1-2, a soft-packed battery tab welding positioning fixture and its welding method, one side of the positioning fixture is provided with a pole piece positioning groove 1, and the bottom of the pole piece positioning groove 1 is provided with a level gauge 4 With a plurality of movable positioning pins 3, the pole piece positioning groove 1 is provided with a welding hole 6 on the top, and one side of the welding hole 6 is provided with a card slot 2, and the movable positioning pin 3 passes through to the other side of the positioning clip. The other side of the positioning fixture is provided with a slide rail 5, and the slide rail 5 is located between the two movable positioning pins 3.
所述的焊接方法包括以下生产步骤: Described welding method comprises following production steps:
步骤①通过可移动定位销3将定位夹具定位在超声波焊接机台之中; Step ① Position the positioning fixture in the ultrasonic welding machine through the movable positioning pin 3;
步骤②通过水平仪4调整定位夹具,使其焊接机的焊头与卡槽2的底面处于平行状态; Step ②Adjust the positioning fixture through the level meter 4, so that the welding head of the welding machine is parallel to the bottom surface of the card slot 2;
步骤③将电芯和极耳分别放在极片定位槽1和卡槽2中; Step ③ Put the battery cell and the tabs in the pole piece positioning slot 1 and the card slot 2 respectively;
步骤④移动滑轨5使极耳的焊接处与超声波焊接机焊头相对应,即可对极耳焊接。 Step ④ Move the slide rail 5 so that the welding part of the tab corresponds to the welding head of the ultrasonic welding machine, and then the tab can be welded.
所述定位夹具以下材料配比而成：氧化铝2%、铁84%、碳5%、铝1.3%、氧化钠1.8%、氧化铜5.9%。 The positioning fixture is made of the following materials: 2% alumina, 84% iron, 5% carbon, 1.3% aluminum, 1.8% sodium oxide, and 5.9% copper oxide.
对极耳焊接的接触面积及其拉伸强度做实验测试，结果为：所焊接极耳的焊接面积为99%，98%，97%，远高于传统比例的90%，同时在拉伸强度分别为：90N/mm，87N/mm，82N/mm，远高于传统对比例的65N/mm。其原因由于水平仪使其极耳、电芯和焊接机焊头相互平行，使其焊接面积增大，同时采用上述材料增强超声的反弹，使焊接口各部位都平均振荡发热，焊接就更牢固了，增从而提高其拉伸强度，提高了焊接效率,并且有效防止虚焊、脱焊及焊接点不完整的问题，提高极耳焊接质量。 The contact area and tensile strength of the tab welding are tested experimentally. The result is: the welding area of the welded tab is 99%, 98%, 97%, which is much higher than the traditional ratio of 90%. At the same time, the tensile strength They are: 90N/mm, 87N/mm, 82N/mm, which are much higher than 65N/mm of the traditional comparative example. The reason is that the level makes the lugs, the battery core and the welding head of the welding machine parallel to each other, which increases the welding area. At the same time, the above materials are used to enhance the ultrasonic rebound, so that all parts of the welding joint oscillate and heat on average, and the welding is stronger. , so as to increase its tensile strength, improve welding efficiency, and effectively prevent the problems of virtual welding, desoldering and incomplete welding points, and improve the quality of tab welding.
最后应说明的是：显然，上述实施例仅仅是为清楚地说明本发明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引申出的显而易见的变化或变动仍处于本发明的保护范围之中。 Finally, it should be noted that: obviously, the above-mentioned embodiments are only examples for clearly illustrating the present invention, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. However, obvious changes or modifications derived therefrom are still within the protection scope of the present invention.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953909.3A CN105382407A (en) | 2015-12-17 | 2015-12-17 | Soft-packaged cell electrode lug welding and positioning fixture and welding method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510953909.3A CN105382407A (en) | 2015-12-17 | 2015-12-17 | Soft-packaged cell electrode lug welding and positioning fixture and welding method thereof |
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| CN105382407A true CN105382407A (en) | 2016-03-09 |
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| CN201510953909.3A Pending CN105382407A (en) | 2015-12-17 | 2015-12-17 | Soft-packaged cell electrode lug welding and positioning fixture and welding method thereof |
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Cited By (2)
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| CN109483129A (en) * | 2018-12-24 | 2019-03-19 | 北方奥钛纳米技术有限公司 | Welding auxiliary equipment |
| CN110369852A (en) * | 2019-08-05 | 2019-10-25 | 珠海冠宇电池有限公司 | A kind of tab welding card slot and the method for carrying out tab welding using the card slot |
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| CN110369852A (en) * | 2019-08-05 | 2019-10-25 | 珠海冠宇电池有限公司 | A kind of tab welding card slot and the method for carrying out tab welding using the card slot |
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