CN110369852A - A kind of tab welding card slot and the method for carrying out tab welding using the card slot - Google Patents
A kind of tab welding card slot and the method for carrying out tab welding using the card slot Download PDFInfo
- Publication number
- CN110369852A CN110369852A CN201910718011.6A CN201910718011A CN110369852A CN 110369852 A CN110369852 A CN 110369852A CN 201910718011 A CN201910718011 A CN 201910718011A CN 110369852 A CN110369852 A CN 110369852A
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- tab
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- soft
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- 238000003466 welding Methods 0.000 title claims abstract description 75
- 238000000034 method Methods 0.000 title claims abstract description 26
- 238000005476 soldering Methods 0.000 claims abstract description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052802 copper Inorganic materials 0.000 claims abstract description 8
- 239000010949 copper Substances 0.000 claims abstract description 8
- 239000011521 glass Substances 0.000 claims description 21
- 238000012216 screening Methods 0.000 claims description 21
- 239000006260 foam Substances 0.000 claims description 6
- 230000003139 buffering effect Effects 0.000 claims description 5
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000013461 design Methods 0.000 claims description 4
- 229910052759 nickel Inorganic materials 0.000 claims description 2
- 239000011888 foil Substances 0.000 abstract description 14
- 239000005030 aluminium foil Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 7
- 102100022560 Protein naked cuticle homolog 1 Human genes 0.000 description 6
- 101710174746 Protein naked cuticle homolog 1 Proteins 0.000 description 6
- 239000010410 layer Substances 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 description 3
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 description 3
- 238000005253 cladding Methods 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 238000003475 lamination Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229920001342 Bakelite® Polymers 0.000 description 1
- 229910000570 Cupronickel Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004637 bakelite Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000011160 research 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
- B23K20/002—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating specially adapted for particular articles or 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
- 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
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/04—Construction or manufacture in general
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/50—Current conducting connections for cells or batteries
- H01M50/531—Electrode connections inside a battery casing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
A kind of tab welding card slot and the method for carrying out tab welding using the card slot, belong to tab welding technical field.The card slot includes lower bayonet slot ontology and two upper card slots；A lead-over groove is equipped with along lower bayonet slot body length direction in the middle part of the lower bayonet slot ontology, it is located at the lead-over groove both ends on lower bayonet slot ontology and is respectively provided with a sipes, two sipes communicate setting with lead-over groove, a narrow slot is respectively provided in the middle part of lower bayonet slot ontology both ends, the through slot of perforation lower bayonet slot ontology upper and lower end face is provided on lower bayonet slot ontology between each narrow slot and the sipes being disposed adjacent, described two upper pocket matches are arranged in sipes.The present invention uses card slot in the pre-soldering process of tab, and foil of the soft tab close to the unwelded region of diaphragm after can making pre-welding is in 90 ° vertical, and effectively preventing the outermost layer foil of multiple layer of copper aluminium foil, and other foils do not contact and there are tensioned states.
Description
Technical field
The invention belongs to tab welding technical fields, and in particular to a kind of tab welding card slot and be carried out using the card slot
The method of tab welding.
Background technique
The energy comparison of power battery is high, and the Soft Roll power battery capacity of mainstream has all reached 50Ah/ currently on the market
60Ah；Square power battery capacity has all reached 100Ah or more.It needs the power battery lamination number of plies more, leads to copper aluminium foil
Up to 40 layers or more of the number of plies；In addition the single positive aluminium pole ears of external extraction and the metal layer thickness of cathode copper nickel plating tab are general
In 0.3~1mm, it often will appear hard tab and the bad situation of soft tab welding.And the inflow of failure welding battery core will cause electricity
Pond internal resistance is bigger than normal, tab overheat causes to scrap.The soft tab refers to that the tab of copper foil and aluminium foil, the hard tab refer to
External tab.
Current driving force battery ultrasonic wave directly welds better than packet weldering effect and is easily guaranteed that welding quality, so power battery is general
Mode is directly welded using ultrasonic wave.Power battery needs tab to carry very big conveyance capacity, how to improve welding procedure and guarantees pole
The firm welding of ear is reliable, consistency is good；There is no rosin joint, cross urgent task of phenomena such as weldering, breach part as industry research.
Summary of the invention
The purpose of the present invention is to solve power battery tab welding in the straight welding technology of existing ultrasonic wave, there are rosin joints, mistake
Phenomena such as weldering, breach, a kind of method that tab welding card slot is provided and carries out tab welding using the card slot.
To achieve the above object, the technical solution adopted by the present invention is as follows:
A kind of tab welding card slot, the card slot include lower bayonet slot ontology and two upper card slots；
It is equipped with a lead-over groove along lower bayonet slot body length direction in the middle part of the lower bayonet slot ontology, is located at institute on lower bayonet slot ontology
It states lead-over groove both ends and is respectively provided with a sipes, two sipes communicate setting with lead-over groove, and lower bayonet slot ontology both ends middle part is each
Equipped with a narrow slot, perforation lower bayonet slot ontology is provided on lower bayonet slot ontology between each narrow slot and the sipes being disposed adjacent
The through slot of upper and lower end face, described two upper pocket matches are arranged in sipes.
A method of tab welding being carried out using above-mentioned card slot, the method is specific as follows:
Step 1: naked battery core is placed in the lead-over groove, and the soft tab at naked battery core both ends is pierced by two upper card slots, naked
The soft tab at battery core both ends is respectively positioned in through slot, directly carries out pre-welding to soft tab using upper soldering tip and lower soldering tip；
Step 2: being cut away extra soft tab by technological design, pastes screening glass in soft tab side；
Step 3: hard tab is welded on eventually on the soft tab of step 2 using upper soldering tip and lower soldering tip, wherein upper soldering tip
The side for posting screening glass with soft tab is in contact, and hard tab does not have the side of screening glass to be in contact with soft tab.
The present invention having the beneficial effect that compared with the existing technology
(1) card slot is used in the pre-soldering process of tab, the soft tab after can making pre-welding is unwelded close to diaphragm
The foil in region is in 90 ° vertical, and the outermost layer foil for effectively preventing multiple layer of copper aluminium foil is not contacted with other foils and deposited
In tensioned state.
(2) screening glass is attached in welding eventually, screening glass when welding eventually is enabled to give foil to support protection；On
The width of soldering tip and lower soldering tip is smaller than soft tab width, and can vacantly weld to avoid soldering tip makes foil edge generate breach phenomenon；
In the non-bond pad locations cladding buffering foam of soldering tip, when welding ultrasonic wave is effectively transmitted eventually, avoid single layer tab
Vibration causes vibration disconnected.
(3) output power that can properly increase welding machine during the welding process makes the effect promoting of welding, ensure that weldering
Planarization, consistency and the stability connect, improves welding efficiency and quality, and simple to operate.
Detailed description of the invention
Positional diagram when Fig. 1 is naked battery core and card slot welding；
Without the effect diagram of card slot when Fig. 2 is pre-welding；
Effect diagram with card slot when Fig. 3 is pre-welding；
Fig. 4 is to weld schematic diagram eventually；
Wherein, the soft tab after the naked battery core of 1-, the soft tab of 2-, 22- pre-welding, the upper card slot of 3-, 4- lower bayonet slot ontology, 5- are protected
Soldering tip, 9- buffer foam, 10- lead-over groove, 11- narrow slot, 12- through slot, 13- sipes under the hard tab of bluff piece, 6-, the upper soldering tip of 7-, 8-.
Specific embodiment
Further description of the technical solution of the present invention with reference to the accompanying drawings and examples, and however, it is not limited to this,
All to be modified to technical solution of the present invention or equivalent replacement, range without departing from the spirit of the technical scheme of the invention should all
Cover within the protection scope of the present invention.
Specific embodiment 1: present embodiment record is a kind of tab welding card slot, material is bakelite plate, is such as schemed
Shown in 1, the card slot includes lower bayonet slot ontology 4 and two upper card slots 3；
4 middle part of the lower bayonet slot ontology is equipped with a lead-over groove 10 along 4 length direction of lower bayonet slot ontology, on lower bayonet slot ontology 4
It is respectively provided with a sipes 13 positioned at 10 both ends of lead-over groove, two sipes 13 communicate setting, lower bayonet slot with lead-over groove 10
A narrow slot 11 is respectively provided in the middle part of 4 both ends of ontology, be located on lower bayonet slot ontology 4 each narrow slot 11 and the sipes 10 that is disposed adjacent it
Between be provided with perforation 4 upper and lower end face of lower bayonet slot ontology through slot 12, effect be can make up and down soldering tip to soft or hard tab and protection
Piece 5 is welded.Foil of the soft tab 22 close to the unwelded region of naked battery core after pre-welding is in 90 ° vertical, as shown in Figure 3.
Described two matchings of upper card slot 3 are arranged in sipes 13.The narrow slot 11 is for placing hard tab 6, the protrusion of hard tab 6
In through slot 12.
Specific embodiment 2: a kind of tab welding card slot described in specific embodiment one, described two upper card slots 3
Total length be naked 1 length of battery core half.
Specific embodiment 3: a kind of tab welding card slot described in specific embodiment one, the lead-over groove 10
Length is identical as the length of naked battery core 1, and the groove depth of the lead-over groove 10 is identical as the thickness of naked battery core 1.
Specific embodiment 4: a kind of tab welding card slot described in specific embodiment one, the upper card slot 3 and width
Width of the width of slot 13 than naked battery core 1 is 1~2mm big.
Specific embodiment 5: it is a kind of using card slot described in any specific embodiment of specific embodiment one to four into
The method of row tab welding, the method are specific as follows:
Step 1: naked battery core 1 is placed in the lead-over groove 10, and the soft tab 2 at 1 both ends of naked battery core is pierced by two upper cards
The soft tab 2 of slot 3, naked 1 both ends of battery core is respectively positioned in through slot 12, is directly carried out to soft tab 2 using upper soldering tip 7 and lower soldering tip 8
Pre-welding；
Step 2: being cut away extra soft tab 2 by technological design, pastes screening glass 5 in soft 2 side of tab；
Step 3: hard tab 6 is welded on the soft tab 2 of step 2 eventually using upper soldering tip 7 and lower soldering tip 8, wherein on
Soldering tip 7 is in contact with the side that soft tab 2 posts screening glass 5, and hard tab 6 connects with soft tab 2 without the side of screening glass 5
Touching.Welding machine output power is adjusted according to practical model, upper soldering tip 7 pushes 3~6s and completes welding eventually.Electric current sheet in welding process
Field technical staff can be selected according to the prior art and adjustment appropriate.
Specific embodiment 6: the method for carrying out tab welding using card slot described in specific embodiment five, step 2
In, the equivalent width of the width of the screening glass 6 and the soft tab 22 after pre-welding.
Specific embodiment 7: the method for carrying out tab welding using card slot described in specific embodiment five, step 2
In, the soft tab 2 includes anode ear and negative electrode lug；The soft tab 2 is if anode ear, then screening glass 5 is 0.05~0.3mm
Thick aluminium flake, the soft tab 2 is if negative electrode lug, then screening glass 5 is that the copper sheet of 0.05~0.2mm thickness or copper plate nickel sheet.
Specific embodiment 8: the method for carrying out tab welding using card slot described in specific embodiment five, step 3
In, the non-pad surface of the upper soldering tip 7 is coated with buffering foam 9, and effect is ultrasonic energy can be made to reach effectively when welding eventually
Transmitting avoids the vibration of single layer tab from causing vibration disconnected.
Specific embodiment 9: the method for carrying out tab welding using card slot described in specific embodiment five, step 3
In, the width of the upper soldering tip 7 and lower soldering tip 8 is 2~6mm smaller than the width of soft tab 2, and can vacantly weld to avoid soldering tip makes foil
Edge edge generates breach phenomenon.
Embodiment 1:
By taking both ends the lamination power battery containing tab as an example, 50 layers of the positive pole aluminium foil number of plies, the negative copper foil number of plies
51 layers；Implement in tab welding process by following operation.
Naked battery core 1 is placed in lead-over groove 10, soft tab 2 is located in through slot 12, completes pre-welding, card slot 3 on two
Length is the half of naked 1 length of battery core, and the length of lead-over groove 10 is consistent with naked 1 length of battery core, the width of upper card slot 3 and sipes 13
It is 1~2mm bigger than naked 1 width of battery core.The groove depth of lead-over groove 10 and the thickness of naked battery core 1 are consistent；Soft pole after pre-welding
Foil of the ear 22 close to the unwelded region of diaphragm is in 90 ° vertical, as shown in Figure 3.After card slot pre-welding of the invention
Soft tab 22 close to 90 ° of foil > of the unwelded region of diaphragm, cause outermost layer foil to be in tensional state, as shown in Figure 2.
The soft tab 2 that additional length is cut away by technological design, naked 1 side of battery core paste screening glass 5, anode ear using
The aluminium flake of 0.1mm, negative electrode lug using 0.05mm thickness copper sheet, the width of screening glass 5 and the soft tab 22 after pre-welding
Equivalent width.
The width of upper soldering tip 7 and lower soldering tip 8 is 4mm smaller than 22 width of soft tab after pre-welding；The non-pad surface of upper soldering tip 7
Cladding buffering foam 9, a side contacts of the upper pad surface of soldering tip and patch screening glass 5, hard tab 6 are placed in soft after pre-welding
Tab 22 without screening glass 5 side, as shown in Figure 1.Welding machine output power 4000W is adjusted, upper soldering tip 7 pushes 4s and completes weldering eventually
It connects, as shown in Figure 4.
Comparative example 1:
Screening glass and weld head size is not added as shown in Fig. 2, welding without the card slot of special preparation in soft 2 pre-welding of tab
It keeps and soft tab equivalent width；Upper soldering tip obtains whole welding finished product without buffering foam.
The tab welding situation obtained to embodiment 1 and comparative example 1 is tested, main test: whether there is or not rosin joint, mistakes to weld,
Breach part and test welding pulling force, statistical result such as following table.
1 embodiment and comparative example test result of table statistics
By the results show that pulling force, foil revolution mark and the fraction defective of embodiment are all obvious compared to comparative example
Improvement is arrived, fraction defective is reduced to 0.1% by 5% especially in terms of improving breach part, and effect is clearly.
Claims (9)
1. a kind of tab welding card slot, it is characterised in that: the card slot includes lower bayonet slot ontology (4) and two upper card slot (3)；
A lead-over groove (10) are equipped with along lower bayonet slot ontology (4) length direction in the middle part of the lower bayonet slot ontology (4), lower bayonet slot ontology
(4) it is located at the lead-over groove (10) both ends on and is respectively provided with a sipes (13), two sipes (13) and lead-over groove (10) phase
Logical setting, lower bayonet slot ontology (4) both ends middle part are respectively provided with a narrow slot (11), are located at each narrow slot on lower bayonet slot ontology (4)
(11) be provided between the sipes (10) being disposed adjacent perforation lower bayonet slot ontology (4) upper and lower end face through slot (12), described two
A upper card slot (3) matching setting is in sipes (13).
2. a kind of tab welding card slot according to claim 1, it is characterised in that: described two upper card slots (3) it is total
Length is the half of naked battery core (1) length.
3. a kind of tab welding card slot according to claim 1, it is characterised in that: the length of the lead-over groove (10) with
The length of naked battery core (1) is identical, and the groove depth of the lead-over groove (10) is identical as the thickness of naked battery core (1).
4. a kind of tab welding card slot according to claim 1, it is characterised in that: the upper card slot (3) and sipes
(13) width of the width than naked battery core (1) is 1~2mm big.
5. a kind of method for carrying out tab welding using card slot described in 4 any claim of Claims 1 to 4, feature exist
In: the method is specific as follows:
Step 1: naked battery core (1) is placed in the lead-over groove (10), and the soft tab (2) at naked battery core (1) both ends is pierced by two
Upper card slot (3), the soft tab (2) at naked battery core (1) both ends are respectively positioned in through slot (12), straight using upper soldering tip (7) and lower soldering tip (8)
It connects and pre-welding is carried out to soft tab (2)；
Step 2: being cut away extra soft tab (2) by technological design, pastes screening glass (5) in soft tab (2) side；
Step 3: hard tab (6) is welded on the soft tab (2) of step 2 by soldering tip (7) and lower soldering tip (8) eventually in use,
In, upper soldering tip (7) is in contact with the side that soft tab (2) posts screening glass (5), and hard tab (6) is not protected with soft tab (2)
The side of piece (5) is in contact.
6. the method according to claim 5 for carrying out tab welding using card slot, it is characterised in that: described in step 2
The equivalent width of the width of screening glass (6) and the soft tab (22) after pre-welding.
7. the method according to claim 5 for carrying out tab welding using card slot, it is characterised in that: described in step 2
Soft tab (2) includes anode ear and negative electrode lug；The soft tab (2) is if anode ear, then screening glass (5) is 0.05~0.3mm
Thick aluminium flake, the soft tab (2) is if negative electrode lug, then screening glass (5) is that the copper sheet of 0.05~0.2mm thickness or copper plate nickel sheet.
8. the method according to claim 5 for carrying out tab welding using card slot, it is characterised in that: described in step 3
The non-pad surface of upper soldering tip (7) is coated with buffering foam (9).
9. the method according to claim 5 for carrying out tab welding using card slot, it is characterised in that: described in step 3
The width of upper soldering tip (7) and lower soldering tip (8) is 2~6mm smaller than the width of soft tab (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910718011.6A CN110369852A (en) | 2019-08-05 | 2019-08-05 | A kind of tab welding card slot and the method for carrying out tab welding using the card slot |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910718011.6A CN110369852A (en) | 2019-08-05 | 2019-08-05 | A kind of tab welding card slot and the method for carrying out tab welding using the card slot |
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| CN110369852A true CN110369852A (en) | 2019-10-25 |
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| CN111570991A (en) * | 2020-05-15 | 2020-08-25 | 昆山聚创新能源科技有限公司 | Battery tab welding method |
| CN112382830A (en) * | 2020-08-03 | 2021-02-19 | 万向一二三股份公司 | Method for effectively preventing foil tab of soft package battery from being broken |
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|---|---|---|---|---|
| CN111570991A (en) * | 2020-05-15 | 2020-08-25 | 昆山聚创新能源科技有限公司 | Battery tab welding method |
| CN112382830A (en) * | 2020-08-03 | 2021-02-19 | 万向一二三股份公司 | Method for effectively preventing foil tab of soft package battery from being broken |
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| PB01 | Publication | ||
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 519180 No. 209 Pearl Peak Avenue, Jingan Town, Doumen District, Zhuhai City, Guangdong Province Applicant after: Zhuhai CosMX Battery Co.,Ltd. Address before: 519180 No. 209 Pearl Peak Avenue, Jingan Town, Doumen District, Zhuhai City, Guangdong Province Applicant before: ZHUHAI COSLIGHT BATTERY Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191025 |