CN110379992A - A kind of tab protection technique and battery pole ear - Google Patents
A kind of tab protection technique and battery pole ear Download PDFInfo
- Publication number
- CN110379992A CN110379992A CN201910782350.0A CN201910782350A CN110379992A CN 110379992 A CN110379992 A CN 110379992A CN 201910782350 A CN201910782350 A CN 201910782350A CN 110379992 A CN110379992 A CN 110379992A
- Authority
- CN
- China
- Prior art keywords
- tab
- raw material
- fixing piece
- protection technique
- sticking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 41
- 239000002994 raw material Substances 0.000 claims abstract description 61
- 238000003466 welding Methods 0.000 claims abstract description 14
- 238000010276 construction Methods 0.000 claims description 20
- 238000004804 winding Methods 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000012797 qualification Methods 0.000 abstract description 7
- 238000005476 soldering Methods 0.000 abstract description 4
- 210000005069 ears Anatomy 0.000 abstract 1
- 239000011888 foil Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000011889 copper foil Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The embodiment provides a kind of tab protection technique and battery pole ears, are related to new energy field.It includes using the fixed multiple tab raw material of fixing piece that tab, which protects technique,；Multiple tab raw material are welded together to form tab sample；It cuts tab sample and forms battery pole ear.Tab protection technique provided by the invention; multiple tab raw material are fixed up using fixing piece before soldering polar ear raw material; the phenomenon that capable of preventing tab raw material from opening during the welding process, leads to not the problem of welding, to improve the qualification rate of battery pole ear.
Description
Technical field
The present invention relates to new energy fields, protect technique and battery pole ear in particular to a kind of tab.
Background technique
In recent years, as the requirement to lithium ion battery energy density is higher and higher, the focus of work of domestic major producer
Is mitigating battery weight, promoting energy content of battery direction.Wherein, cathode can greatly mitigate battery weight using 6 μm of foils.But
It is compared with 9 μm of copper foils, 6 μm of copper foil stiffness are lower, and the qualification rate of the tab of generation is lower always.
Summary of the invention
In view of the deficiencies of the prior art, the object of the present invention is to provide a kind of tabs to protect technique and battery pole ear,
It is able to ascend the qualification rate of battery pole ear.
The embodiment of the present invention this can be implemented so that
In a first aspect, the embodiment of the present invention provides a kind of tab protection technique, comprising:
Using the fixed multiple tab raw material of fixing piece；
Multiple tab raw material are welded together to form tab sample；
It cuts the tab sample and forms battery pole ear.
In alternative embodiments, the tab raw material include finished product section interconnected and construction section, it is described at
Product section is used to form the battery pole ear, and the finished product section is connect far from one end of the construction section with pole piece, described using solid
Determining the step of part fixes multiple tab raw material includes:
The fixing piece is moved at the tab raw material；
The fixing piece is installed to the construction section of the tab raw material.
In alternative embodiments, the fixing piece includes fixed part, the first sticking part and the second sticking part, and described
One sticking part and second sticking part are separately positioned on the two sides of the fixed part, described to install the fixing piece to described
Step on the construction section of tab raw material includes:
One fixing piece of setting is respectively corresponded from the two sides of the tab raw material, makes the institute of two fixing pieces
State that the first sticking part is correspondingly arranged and second sticking part is correspondingly arranged；
Two first sticking parts and two second sticking parts are clamped respectively.
In alternative embodiments, described to install the fixing piece to the step on the construction section of the tab raw material
Suddenly further include:
It unclamps two first sticking parts and unclamps two second sticking parts, two first sticking parts are fixed
Connection, two second sticking parts are fixedly connected.
In alternative embodiments, the length of the fixed part is greater than the width of the tab raw material.
In alternative embodiments, Jiao Qu is provided on first sticking part and second sticking part.
In alternative embodiments, described that multiple tab raw material are welded together to the step to form tab sample
Suddenly include:
The finished product section for welding multiple tab raw material forms the tab sample.
In alternative embodiments, described the step of cutting the tab sample formation battery pole ear, includes:
Along tab sample described in the connection line clipping of the finished product section and the construction section, the finished product section of the tab sample
Form the battery pole ear.
In alternative embodiments, the step of the use fixing piece fixes multiple tab raw material simultaneously, described
Tab protection technique further include: winding battery core.
Second aspect, the embodiment of the present invention provide a kind of battery pole ear, described in any item using such as aforementioned embodiments
Tab protection technique is made.
Tab provided in an embodiment of the present invention protection technique and battery pole ear the utility model has the advantages that tab protection technique includes adopting
Multiple tab raw material are fixed with fixing piece；Multiple tab raw material are welded together to form tab sample；Cut tab sample
Product form battery pole ear.
Tab protection technique provided by the invention uses fixing piece by multiple tab former materials before soldering polar ear raw material
The phenomenon that material is fixed up, and can prevent tab raw material from opening during the welding process leads to not the problem of welding,
To improve the qualification rate of battery pole ear.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the flow chart that the tab that the embodiment of the present invention one provides protects technique；
Fig. 2 is the structural schematic diagram that the tab that the embodiment of the present invention one provides protects the fixing piece used in technique；
Fig. 3 is the flow chart of the sub-step for the step S100 that the tab that the embodiment of the present invention one provides protects technique；
Fig. 4 is the flow chart of the sub-step for the step S120 that the tab that the embodiment of the present invention one provides protects technique；
Fig. 5 is the structural representation that the tab that the embodiment of the present invention one provides protects the fixed tab raw material of fixing piece in technique
Figure.
Icon: 100- fixing piece；The first sticking part of 110-；The second sticking part of 120-；130- fixed part；200- tab former material
Material.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that if there is the side of the instructions such as term " on ", "lower", "inner", "outside"
Position or positional relationship be based on the orientation or positional relationship shown in the drawings or the invention product using when the side usually put
Position or positional relationship, are merely for convenience of description of the present invention and simplification of the description, rather than the device or member of indication or suggestion meaning
Part must have a particular orientation, be constructed and operated in a specific orientation, therefore be not considered as limiting the invention.
In addition, being only used for distinguishing description if there is term " first ", " second " etc., it is not understood to indicate or imply phase
To importance.
It should be noted that in the absence of conflict, the feature in the embodiment of the present invention can be combined with each other.
Embodiment one
Referring to FIG. 1, present embodiments providing a kind of tab protection technique, tab provided in this embodiment protects technique master
It is used to manufacture battery pole ear, tab protection technique provided in this embodiment is able to ascend the qualification rate of battery pole ear.
The raw material of common battery pole ear manufacture are 6 μm of foils on the market at present, and compared to 9m foil, its light weight can
Greatly mitigate battery weight, it is found by the applicant that 6 μm of foil stiffness are lower, before welding it is possible that tab opening shows
As, lead to not weld, it is lower so as to cause the qualification rate of battery pole ear.Applicant puts forward a kind of tab protection technique can
It solves the above problems.
Specific step is as follows:
Fig. 1 and Fig. 2, step S100 are please referred to, using the fixed multiple tab raw material 200 of fixing piece 100.
In the present embodiment, multiple tab raw material 200 are fixed before welding multiple tab raw material 200, it can
The case where preventing multiple tab raw material 200 from opening during the welding process.
Wherein, step S100 may include step S110 and step S120.
Referring to Fig. 3, step S110, fixing piece 100 is moved at tab raw material 200.
In the present embodiment, the position that current tab raw material 200 are positioned by positioning device, fixing piece 100 is mobile
To tab raw material 200.
Step S120, will be in the installation to the construction section of tab raw material 200 of fixing piece 100.
In the present embodiment, tab raw material 200 include finished product section interconnected and construction section, and finished product section is used to form
Battery pole ear, finished product section are connect far from one end of construction section with pole piece.
Referring to Fig. 4, wherein, step S120 may include step S122, step S124 and step S126.
Referring to Fig. 5, fixing piece 100 includes fixed part 130, the first sticking part 110 and the second sticking part 120, the first patch
Conjunction portion 110 and the second sticking part 120 are separately positioned on the two sides of fixed part 130.
Referring to Fig. 4, step S122, respectively corresponds one fixing piece 100 of setting from the two sides of tab raw material 200.Make
First sticking part 110 of two fixing pieces 100 is correspondingly arranged and the second sticking part 120 is correspondingly arranged.
In the present embodiment, multiple tab raw material 200 are stacked, respectively from outermost two tab raw material
200 are respectively provided with a fixing piece 100, and two fixing pieces 100 surround multiple tab raw material 200, fixed part 130 and tab
Raw material 200 are bonded, and achieve the purpose that fixed tab raw material 200.
In the present embodiment, the length of fixed part 130 is greater than the width of tab raw material 200.It can prevent the first fitting
Portion 110 or the second sticking part 120 are contacted with 200 surface of tab raw material.
Step S124 clamps two the first sticking parts 110 and two the second sticking parts 120 respectively.
In the present embodiment, it is provided with Jiao Qu on the first sticking part 110 and the second sticking part 120, when clamping two the
When one sticking part 110, two the first sticking parts 110 are viscous glutinous, and two the second sticking parts 120 are viscous glutinous.
Step S126 unclamps two the first sticking parts 110 and unclamps two the second sticking parts 120.Two the first sticking parts
110 are fixedly connected, and two the second sticking parts 120 are fixedly connected.
Step S200 winds battery core.
In the present embodiment, two steps that generally comprise of core are formed, are cold-pressed after winding battery core raw material, are cold-pressed
Core is formed after the completion.Above-mentioned step S110- step S126 has been executed before core completes cold pressing.
Multiple tab raw material 200 are welded together to form tab sample by step S300.
In the present embodiment, the finished product section for welding multiple tab raw material 200 forms tab sample.
Step S400 cuts tab sample and forms battery pole ear.
In the present embodiment, along the connection line clipping tab sample of finished product section and construction section, the finished product section shape of tab sample
At battery pole ear.
In the present embodiment, fixing piece 100 is mounted on construction section, construction section can be connected to after welding has been completed and cut together
It removes, it is easy to operate.
The working principle of tab protection technique provided in this embodiment: in the present embodiment, will while forming core
Fixing piece 100 is mounted on construction section, and the finished product section of soldering polar ear raw material 200 will cut off construction section, finished product after the completion of welding
Section forms battery pole ear.
In conclusion tab protection technique provided in this embodiment, uses fixing piece before soldering polar ear raw material 200
100 are fixed up multiple tab raw material 200, can prevent tab raw material 200 from occurring opening during the welding process
Phenomenon leads to not the problem of welding, to improve the qualification rate of battery pole ear.
Embodiment two
Present embodiments provide a kind of battery pole ear, the pole that battery pole ear provided in this embodiment uses embodiment one to provide
Ear protection technique is made.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those familiar with the art, all answers
It is included within the scope of the present invention.Therefore, protection scope of the present invention should be with the scope of protection of the claims
It is quasi-.
Claims (10)
1. a kind of tab protection technique characterized by comprising
Using the fixed multiple tab raw material of fixing piece；
Multiple tab raw material are welded together to form tab sample；
It cuts the tab sample and forms battery pole ear.
2. tab protection technique according to claim 1, which is characterized in that the tab raw material include interconnected
Finished product section and construction section, the finished product section are used to form the battery pole ear, the described one end of finished product section far from the construction section
It is connect with pole piece, the step of multiple tab raw material fixed using fixing piece includes:
The fixing piece is moved at the tab raw material；
The fixing piece is installed to the construction section of the tab raw material.
3. tab protection technique according to claim 2, which is characterized in that the fixing piece includes fixed part, the first patch
Conjunction portion and the second sticking part, first sticking part and second sticking part are separately positioned on the two sides of the fixed part, institute
It states the fixing piece to be installed to the step on the construction section of the tab raw material and includes:
One fixing piece of setting is respectively corresponded from the two sides of the tab raw material, makes described the of two fixing pieces
One sticking part is correspondingly arranged and second sticking part is correspondingly arranged；
Two first sticking parts and two second sticking parts are clamped respectively.
4. tab protection technique according to claim 3, which is characterized in that described to install the fixing piece to the pole
Step on the construction section of ear raw material further include:
It unclamps two first sticking parts and unclamps two second sticking parts, two first sticking parts are fixed to be connected
It connects, two second sticking parts are fixedly connected.
5. tab protection technique according to claim 3, which is characterized in that the length of the fixed part is greater than the tab
The width of raw material.
6. tab protection technique according to claim 3, which is characterized in that first sticking part and second fitting
Jiao Qu is provided in portion.
7. tab protection technique according to claim 2, which is characterized in that described to weld multiple tab raw material
Include: to the step of being formed together tab sample
The finished product section for welding multiple tab raw material forms the tab sample.
8. tab protection technique according to claim 2, which is characterized in that described to cut the tab sample formation battery
The step of tab includes:
Along tab sample described in the connection line clipping of the finished product section and the construction section, the finished product section of the tab sample is formed
The battery pole ear.
9. tab protection technique according to claim 1, which is characterized in that described using the fixed multiple tabs of fixing piece
The step of raw material simultaneously, the tab protection technique further include: winding battery core.
10. a kind of battery pole ear, which is characterized in that be made of such as the described in any item tab protection techniques of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910782350.0A CN110379992B (en) | 2019-08-23 | 2019-08-23 | Electrode lug protection process and battery electrode lug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910782350.0A CN110379992B (en) | 2019-08-23 | 2019-08-23 | Electrode lug protection process and battery electrode lug |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110379992A true CN110379992A (en) | 2019-10-25 |
| CN110379992B CN110379992B (en) | 2024-02-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910782350.0A Active CN110379992B (en) | 2019-08-23 | 2019-08-23 | Electrode lug protection process and battery electrode lug |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01255164A (en) * | 1988-04-01 | 1989-10-12 | Natl Space Dev Agency Japan<Nasda> | Manufacture of alkaline storage battery |
| 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 |
| CN202758955U (en) * | 2012-08-22 | 2013-02-27 | 安赛锂能(合肥)有限公司 | Connecting structure with pole ears and cover cap |
| CN104137303A (en) * | 2012-04-16 | 2014-11-05 | 株式会社Lg化学 | Electrode assembly having different anode and cathode welding portion shapes and secondary battery including same |
| CN104466075A (en) * | 2014-12-29 | 2015-03-25 | 昆山斯格威电子科技有限公司 | Connecting structure of lithium battery plate lugs and poles and manufacturing method thereof |
| DE102015209719A1 (en) * | 2015-05-27 | 2016-12-01 | Thyssenkrupp Ag | Hold-down device for an ultrasonic welding device |
| CN107452934A (en) * | 2016-05-31 | 2017-12-08 | 万向二三股份公司 | Soft package lithium ion power battery tab welding structure and its welding method |
| CN107671414A (en) * | 2017-09-04 | 2018-02-09 | 中航锂电（洛阳）有限公司 | Lithium ion cell polar ear ultrasonic welding method and tab welding guard method |
| CN107755881A (en) * | 2017-11-29 | 2018-03-06 | 东莞市力星激光科技有限公司 | The Multilayer pole ear laser soldering device and technique of a kind of cover plate of power battery |
| CN209029470U (en) * | 2018-10-16 | 2019-06-25 | 江苏塔菲尔新能源科技股份有限公司 | A kind of cell connector and tab welding structure |
-
2019
- 2019-08-23 CN CN201910782350.0A patent/CN110379992B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01255164A (en) * | 1988-04-01 | 1989-10-12 | Natl Space Dev Agency Japan<Nasda> | Manufacture of alkaline storage battery |
| 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 |
| CN104137303A (en) * | 2012-04-16 | 2014-11-05 | 株式会社Lg化学 | Electrode assembly having different anode and cathode welding portion shapes and secondary battery including same |
| CN202758955U (en) * | 2012-08-22 | 2013-02-27 | 安赛锂能(合肥)有限公司 | Connecting structure with pole ears and cover cap |
| CN104466075A (en) * | 2014-12-29 | 2015-03-25 | 昆山斯格威电子科技有限公司 | Connecting structure of lithium battery plate lugs and poles and manufacturing method thereof |
| DE102015209719A1 (en) * | 2015-05-27 | 2016-12-01 | Thyssenkrupp Ag | Hold-down device for an ultrasonic welding device |
| CN107452934A (en) * | 2016-05-31 | 2017-12-08 | 万向二三股份公司 | Soft package lithium ion power battery tab welding structure and its welding method |
| CN107671414A (en) * | 2017-09-04 | 2018-02-09 | 中航锂电（洛阳）有限公司 | Lithium ion cell polar ear ultrasonic welding method and tab welding guard method |
| CN107755881A (en) * | 2017-11-29 | 2018-03-06 | 东莞市力星激光科技有限公司 | The Multilayer pole ear laser soldering device and technique of a kind of cover plate of power battery |
| CN209029470U (en) * | 2018-10-16 | 2019-06-25 | 江苏塔菲尔新能源科技股份有限公司 | A kind of cell connector and tab welding structure |
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| Publication number | Publication date |
|---|---|
| CN110379992B (en) | 2024-02-23 |
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