CN105552292B - A kind of production technology of lithium battery pole ear - Google Patents
A kind of production technology of lithium battery pole ear Download PDFInfo
- Publication number
- CN105552292B CN105552292B CN201610063287.1A CN201610063287A CN105552292B CN 105552292 B CN105552292 B CN 105552292B CN 201610063287 A CN201610063287 A CN 201610063287A CN 105552292 B CN105552292 B CN 105552292B
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- CN
- China
- Prior art keywords
- lug
- metal
- band
- groove
- lithium battery
- 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.)
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- 238000005516 engineering process Methods 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 29
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 25
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 25
- 229910052751 metal Inorganic materials 0.000 claims abstract description 119
- 239000002184 metal Substances 0.000 claims abstract description 119
- 238000005096 rolling process Methods 0.000 claims abstract description 35
- 239000002131 composite material Substances 0.000 claims abstract description 26
- 239000000463 material Substances 0.000 claims abstract description 22
- 150000002739 metals Chemical class 0.000 claims abstract description 15
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 43
- 229910052782 aluminium Inorganic materials 0.000 claims description 40
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 38
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 27
- 229910052802 copper Inorganic materials 0.000 claims description 27
- 239000010949 copper Substances 0.000 claims description 27
- 239000004411 aluminium Substances 0.000 claims description 24
- 239000000178 monomer Substances 0.000 claims description 24
- 229910052759 nickel Inorganic materials 0.000 claims description 19
- 150000001875 compounds Chemical class 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 14
- 238000005097 cold rolling Methods 0.000 claims description 8
- 238000003466 welding Methods 0.000 claims description 7
- 238000010894 electron beam technology Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000001291 vacuum drying Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 229910018182 Al—Cu Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 239000013527 degreasing agent Substances 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- CHLJYJMHKCYDMM-UHFFFAOYSA-N alumane;nickel Chemical compound [AlH3].[Ni].[Ni] CHLJYJMHKCYDMM-UHFFFAOYSA-N 0.000 description 1
- -1 aluminium-nickel-aluminum Chemical compound 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
Classifications
-
- 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)
- Connection Of Batteries Or Terminals (AREA)
Abstract
The present invention provides a kind of production technologies of lithium battery pole ear, and positive terminal and the negative pole end for producing lug are fairly simple for the processing step of lug made of different metals, and technological requirement difficulty is low, the high yield rate of manufactured lug.The both ends of lug are different first, second metal is made, by opening up groove among the band of lug one end, the composite rolling metal strip identical with the band material of the lug other end in groove, and the band of lug one end after composite rolling is cut into two parts among groove, the band of lug one end that pressure rolling is split, so that the first metal layer of the one end being split for the band of lug one end being split is completely wrapped in second metal layer, one end that the band of lug one end at this time is split is the second metal layer with the material identical of the band of the lug other end, due to being easy to weld between same metal, a complete lug band can be easily welded to connect into the band of the lug other end.
Description
Technical field
Present invention design battery technology field, specially a kind of production technology of lithium battery pole ear.
Background technology
Notification number provides a kind of structure of lithium battery pole ear, the pole for the Chinese utility model patent of CN204614849U
Including using the positive terminal of aluminium and using the negative pole end of copper or nickel, the end face of positive terminal and negative pole end is respectively equipped with mutually ear structure
The jog of cooperation, the mutually compound fixation of jog；Positive terminal and negative pole end are respectively adopted different in such extreme ear structure
Metal is made, however mutually compound more difficult between different metals, and processing technology requirement difficulty is high, and yield rate is low, anode
The procedure of processing of its structure of end with the jog of the end face of negative pole end setting mutual cooperation is also complex, production rate compared with
It is low.
Invention content
In view of the above-mentioned problems, the present invention provides a kind of production technology of lithium battery pole ear, produce lug positive terminal and
Negative pole end for lug made of different metals processing step it is fairly simple, technological requirement difficulty is low, manufactured lug into
Product rate is high.
A kind of production technology of lithium battery pole ear, the both ends of lug are respectively that different metals is made, it is characterised in that：
Include the following steps：
A, the one end of the first metal as lug, the other end of second metal as lug, as lug one end are selected
The centre of positive and negative of the first sheet metal strip open up groove respectively, inlay the metal strip wide with groove, metal in a groove
Second metal of the material of item for the other end of lug, it is by composite rolling mill that metal strip is compound in a groove.
B, using step a obtain it is compound after one end as lug the first sheet metal strip central axes along its length
It is cut into two parts and obtains one end band of two pieces of lugs, not cut one end of one end band of lug is all the first metal
Band, the other end that one end band of lug is split is the first metal layer and the composite bed of second metal layer.
C, through-thickness carries out pressure rolling to one end band of the obtained lugs of step b, until one end band quilt of lug
The first metal layer of cutting one end is completely encapsulated in the second metal layer for being compounded in the first metal layer top and bottom, obtains pole
Ear band.
D, the thickness needed for lug strap cold rolling to lug monomer after step c is welded, then by lug monomer
Length and width is cut into lug monomer.
A kind of production technology of lithium battery pole ear, the both ends of lug are respectively that different metals is made, it is characterised in that：
Include the following steps：
A, the one end of the first metal as lug, the other end of second metal as lug, as lug one end are selected
The centre of positive and negative of the first sheet metal strip open up groove respectively, inlay the metal strip wide with groove, metal in a groove
Second metal of the material of item for the other end of lug, it is by composite rolling mill that metal strip is compound in a groove.
B, using step a obtain it is compound after one end as lug the first sheet metal strip central axes along its length
It is cut into two parts and obtains one end band of two pieces of lugs, not cut one end of one end band of lug is all the first metal
Band, the other end that one end band of lug is split is the first metal layer and the composite bed of second metal layer.
C, through-thickness carries out pressure rolling to one end band of the obtained lugs of step b, until one end band quilt of lug
The first metal layer of cutting one end is completely encapsulated in the second metal layer for being compounded in the first metal layer top and bottom.
D, step c is obtained to the one of the other end band for being split one end and lug of one end band of the lug after pressure rolling
End is welded to connect into a lug band.
E, the thickness needed for lug strap cold rolling to lug monomer after step d is welded, then by lug monomer
Length and width is cut into lug monomer.
Further, the first metal is aluminium, and the second metal is copper.
Further, the first metal is aluminium, and the second metal is nickel.
Further, the first metal is copper, and the second metal is aluminium.
Further, the first metal is nickel, and the second metal is aluminium.
Further, it is welded as in ultrasonic bonding, beam-plasma weldering, electron beam weldering and laser welding method in step d
Any one.
The both ends of the technique productions lug of invention are used as lug made of first, second different metals, by pole
Groove is opened up among the band of ear one end, the composite rolling metal strip identical with the band material of the lug other end in groove,
And the band of lug one end after composite rolling is cut into two parts, the band of lug one end that pressure rolling is split among groove
Material so that the first metal layer of the one end being split for the band of lug one end being split is completely wrapped in second metal layer
In, one end that the band of lug one end at this time is split is the second metal with the material identical of the band of the lug other end
Layer, welded due to being easy between same metal, it is easy to can be welded to connect into the band of the lug other end one it is complete
Whole lug band, the positive terminal and negative pole end of processing technology production lug using the present invention are pole made of different metals
Ear technological requirement difficulty is low, the high yield rate of lug.
Description of the drawings
Fig. 1 is the process flow diagram of the production technology of the lithium battery pole ear of embodiment 1；
Fig. 2 is the process flow diagram of the production technology of the lithium battery pole ear of embodiment 2；
Fig. 3 is the process flow diagram of the production technology of the lithium battery pole ear of embodiment 3；
Fig. 4 is the process flow diagram of the production technology of the lithium battery pole ear of embodiment 4；
Fig. 5 is the process flow diagram of the production technology of the lithium battery pole ear of embodiment 5.
Specific embodiment
The present invention is combined below in conjunction with attached drawing and is described further.
One end of lug is defined as positive terminal, the other end of lug is defined as negative pole end.
Specific embodiment 1：See Fig. 1, a kind of production technology of lithium battery pole ear includes the following steps：
A, lug negative pole end selects copper strip, and lug positive terminal selects aluminum strip, in the copper strip as lug negative pole end
The centre of positive and negative open up groove respectively, recess width 5mm inlays the metal strip wide with groove, metal in a groove
Item is the aluminum metal item with the aluminium strip material identical of the positive terminal of lug, and aluminum metal item is by composite rolling mill composite rolling in groove
In；
B, using step a obtain it is compound after the central axes along its length of the copper strip as lug negative pole end be cut into two
Part, obtains two blocks of lug negative pole end bands, and not cut one end of lug negative pole end band is all layers of copper, lug negative pole end
The other end that band is cut is the composite bed of Solder for Al-Cu Joint Welding-aluminium；
C, through-thickness carries out pressure rolling to step b lug negative pole ends band, until lug negative pole end band is split one
The layers of copper at end is completely encapsulated in the aluminium layer for being compounded in layers of copper top and bottom；
It is welded with lug positive terminal aluminum strip the d, one end that is split that step c is obtained to the lug negative pole end band after pressure rolling
It connects into a lug band, is welded as in ultrasonic bonding, beam-plasma weldering, electron beam weldering and laser welding method in step d
Any one；
E, the thickness needed for lug strap cold rolling to lug monomer after step d is welded, then by lug monomer
Length and width is cut into lug monomer.
Before step a, following steps are further included：
First, oil removing is cleaned with degreaser respectively using as the copper strip of the band of lug and aluminum strip；
2nd, oxide layer processing is carried out to copper strip and aluminum strip surface；
3rd, ion processing is carried out to the surface of copper strip；
4th, infiltration annealing：It will be placed in vacuum drying oven that quickly heat up to 950-1150 Celsius by the copper strips of step 3 processing
Degree keeps the temperature 1.5-2 hours, stops heating, natural cooling；It is heated to being placed in vacuum drying oven by the aluminum strip of step 2 processing
250-300 degrees Celsius, the natural cooling after keeping the temperature 1.5-2 hours.
Specific embodiment 2：See Fig. 2, a kind of production technology of lithium battery pole ear includes the following steps：
A, lug negative pole end selects copper strip, and lug positive terminal selects aluminum strip, in the aluminum strip as lug positive terminal
The centre of positive and negative open up groove respectively, recess width 10mm inlays the metal strip wide with groove, metal in a groove
Item is the copper metal item with the copper strips material identical at the consequent pole end of lug, and copper metal item is by composite rolling mill composite rolling in groove
In.
B, using step a obtain it is compound after the central axes along its length of the aluminum strip as lug positive terminal be cut into two
Part, obtains two blocks of lug positive terminal bands, and not cut one end of lug positive terminal band is all aluminium layer, lug positive terminal
The other end that band is cut is the composite bed of copper-Solder for Al-Cu Joint Welding.
C, through-thickness carries out pressure rolling to step b lug positive terminals band, until lug positive terminal band is split one
The aluminium layer at end is completely encapsulated in the layers of copper for being compounded in aluminium layer top and bottom.
It is welded with lug negative pole end copper strip the d, one end that is split that step c is obtained to the lug positive terminal band after pressure rolling
It connects into a lug band, is welded as in ultrasonic bonding, beam-plasma weldering, electron beam weldering and laser welding method in step d
Any one.
E, the thickness needed for lug strap cold rolling to lug monomer after step d is welded, then by lug monomer
Length and width is cut into lug monomer.
Before step a, following steps are further included：
First, oil removing is cleaned with degreaser respectively using as the copper strip of the band of lug and aluminum strip；
2nd, oxide layer processing is carried out to copper strip and aluminum strip surface；
3rd, ion processing is carried out to the surface of copper strip；
4th, infiltration annealing：It will be placed in vacuum drying oven that quickly heat up to 950-1150 Celsius by the copper strips of step 3 processing
Degree keeps the temperature 1.5-2 hours, stops heating, natural cooling；It is heated to being placed in vacuum drying oven by the aluminum strip of step 2 processing
250-300 degrees Celsius, the natural cooling after keeping the temperature 1.5-2 hours.
Specific embodiment 3：See Fig. 3, a kind of production technology of lithium battery pole ear includes the following steps：
A, lug negative pole end selects nickel strap material, and lug positive terminal selects aluminum strip, in the nickel strap material as lug negative pole end
The centre of positive and negative open up groove respectively, recess width 20mm inlays the metal strip wide with groove, metal in a groove
Item is the aluminum metal item with the aluminium strip material identical of the positive terminal of lug, and aluminum metal item is by composite rolling mill composite rolling in groove
In；
B, using step a obtain it is compound after the central axes along its length of the nickel strap material as lug negative pole end be cut into two
Part, obtains two blocks of lug negative pole end bands, and not cut one end of lug negative pole end band is all nickel layer, lug negative pole end
The other end that band is cut is the composite bed of aluminium-nickel-aluminum；
C, through-thickness carries out pressure rolling to step b lug negative pole ends band, until lug negative pole end band is split one
The nickel layer at end is completely encapsulated in the aluminium layer for being compounded in nickel layer top and bottom；
It is welded with lug positive terminal aluminum strip the d, one end that is split that step c is obtained to the lug negative pole end band after pressure rolling
It connects into a lug band, is welded as in ultrasonic bonding, beam-plasma weldering, electron beam weldering and laser welding method in step d
Any one；
E, the thickness needed for lug strap cold rolling to lug monomer after step d is welded, then by lug monomer
Length and width is cut into lug monomer.
Specific embodiment 4：See Fig. 4, a kind of production technology of lithium battery pole ear includes the following steps：A, lug negative pole end
Nickel strap material is selected, lug positive terminal is selected aluminum strip, opened respectively in the centre of the positive and negative of the aluminum strip as lug positive terminal
If groove, recess width 40mm inlays the metal strip wide with groove in a groove, and metal strip is and the consequent pole end of lug
The nickel metal strip of nickel strap material identical, nickel metal strip by composite rolling mill composite rolling in a groove.
B, using step a obtain it is compound after the central axes along its length of the aluminum strip as lug positive terminal be cut into two
Part, obtains two blocks of lug positive terminal bands, and not cut one end of lug positive terminal band is all aluminium layer, lug positive terminal
The other end that band is cut is the composite bed of nickel-aluminum-nickel.
C, through-thickness carries out pressure rolling to step b lug positive terminals band, until lug positive terminal band is split one
The aluminium layer at end is completely encapsulated in the nickel layer for being compounded in aluminium layer top and bottom.
It is welded with lug negative pole end nickel strap material the d, one end that is split that step c is obtained to the lug positive terminal band after pressure rolling
It connects into a lug band, is welded as in ultrasonic bonding, beam-plasma weldering, electron beam weldering and laser welding method in step d
Any one.
E, the thickness needed for lug strap cold rolling to lug monomer after step d is welded, then by lug monomer
Length and width is cut into lug monomer.
Specific embodiment 5：See Fig. 5, a kind of production technology of lithium battery pole ear, the both ends of lug are respectively different metals
It is made, it is characterised in that：Include the following steps：
A, the one end of the first metal as lug, the other end of second metal as lug, as lug one end are selected
The centre of positive and negative of the first sheet metal strip 1 open up groove 2 respectively, recess width 80mm inlays and groove in groove 2
3 wide metal strips 3, the material of metal strip 3 is the second metal of the other end of lug, by composite rolling mill that metal strip is compound
In a groove.
B, using step a obtain it is compound after one end as lug the first sheet metal strip 1 axis along its length
Line is cut into two parts and obtains one end band of two pieces of lugs, and not cut one end of one end band of lug is all the first gold medal
Belong to band, the other end that one end band of lug is split is the first metal layer and the composite bed of second metal layer.
C, through-thickness carries out pressure rolling to one end band of the obtained lugs of step b, until one end band quilt of lug
The first metal layer of cutting one end is completely encapsulated in the second metal layer for being compounded in the first metal layer top and bottom, obtains pole
Ear band.
D, the thickness needed for lug strap cold rolling to lug monomer after step c is welded, then by lug monomer
Length and width is cut into lug monomer.
Wherein the first metal is aluminium, and the second metal is copper；Or first metal be aluminium, the second metal be nickel；Or first metal
For copper, the second metal is aluminium or the first metal is nickel, and the second metal is aluminium.
The both ends of the technique productions lug of invention are used as lug made of first, second different metals, by pole
Groove is opened up among the band of ear one end, the composite rolling metal strip identical with the band material of the lug other end in groove,
And the band of lug one end after composite rolling is cut into two parts, the band of lug one end that pressure rolling is split among groove
Material so that the first metal layer of the one end being split for the band of lug one end being split is completely wrapped in second metal layer
In, one end that the band of lug one end at this time is split is the second metal with the material identical of the band of the lug other end
Layer, welded due to being easy between same metal, it is easy to can be welded to connect into the band of the lug other end one it is complete
Whole lug band, the positive terminal and negative pole end of processing technology production lug using the present invention are pole made of different metals
Ear technological requirement difficulty is low, the high yield rate of lug.
Claims (7)
1. a kind of production technology of lithium battery pole ear, the both ends of lug are respectively that different metals is made, it is characterised in that：Packet
Include following steps：
A, one end as lug of the first metal is selected, the other end of second metal as lug, in the as lug one end
The centre of the positive and negative of one sheet metal strip opens up groove respectively, inlays the metal strip wide with groove in a groove, metal strip
Second metal of the material for the other end of lug, it is by composite rolling mill that metal strip is compound in a groove；
B, using step a obtain it is compound after the first sheet metal strip central axes along its length of one end as lug cut
One end band of two pieces of lugs is obtained into two parts, not cut one end of one end band of lug is all the first metal tape
Material, the other end that one end band of lug is split is the first metal layer and the composite bed of second metal layer；
C, through-thickness carries out pressure rolling to one end band of the obtained lugs of step b, until one end band of lug is split
The first metal layer of one end is completely encapsulated in the second metal layer for being compounded in the first metal layer top and bottom；
D, step c is obtained to one end weldering of the other end band for being split one end and lug of one end band of the lug after pressure rolling
It is connected into lug band in succession；
E, the thickness needed for lug strap cold rolling to lug monomer after step d is welded, then the length by lug monomer
Lug monomer is cut into width.
2. a kind of production technology of lithium battery pole ear according to claim 1, it is characterised in that：First metal is aluminium, the
Two metals are copper.
3. a kind of production technology of lithium battery pole ear according to claim 1, it is characterised in that：First metal is aluminium, the
Two metals are nickel.
4. a kind of production technology of lithium battery pole ear according to claim 1, it is characterised in that：First metal is copper, the
Two metals are aluminium.
5. a kind of production technology of lithium battery pole ear according to claim 1, it is characterised in that：First metal is nickel, the
Two metals are aluminium.
6. a kind of production technology of lithium battery pole ear according to claim 1, it is characterised in that：It is welded as in step d
Ultrasonic bonding, beam-plasma weldering, electron beam weldering and laser welding method in any one.
7. a kind of production technology of lithium battery pole ear according to claim 2, it is characterised in that：The width of the groove is
5-100mm。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610063287.1A CN105552292B (en) | 2016-01-31 | 2016-01-31 | A kind of production technology of lithium battery pole ear |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610063287.1A CN105552292B (en) | 2016-01-31 | 2016-01-31 | A kind of production technology of lithium battery pole ear |
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| CN105552292A CN105552292A (en) | 2016-05-04 |
| CN105552292B true CN105552292B (en) | 2018-07-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110860854B (en) * | 2019-10-08 | 2021-11-12 | 宜兴市惠华复合材料有限公司 | Continuous welding process for lithium battery charging and discharging circuit |
| EP3984663A1 (en) * | 2020-10-16 | 2022-04-20 | Voestalpine Precision Strip GmbH | Metal strip and method of manufacturing such a metal strip |
| CN119870790B (en) * | 2025-01-16 | 2025-07-04 | 星恒电源(滁州)有限公司 | Secondary battery composite material production process and system |
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|---|---|---|---|---|
| CN102544420A (en) * | 2012-03-12 | 2012-07-04 | 谢振华 | Cathode lug for novel lithium battery and manufacturing process method for cathode lug |
| CN103928651A (en) * | 2013-01-16 | 2014-07-16 | 徐卓辉 | Pole lug single body with embedded composite metal structure, row type pole lug, and manufacturing method of pole lug single body |
| CN104600235A (en) * | 2013-10-30 | 2015-05-06 | 徐卓辉 | Composite metal structure positive tab for polymer lithium batteries and manufacturing method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8574753B2 (en) * | 2009-08-27 | 2013-11-05 | Kabushiki Kaisha Toshiba | Battery comprising a conductive nipping member |
| US9692032B2 (en) * | 2012-06-28 | 2017-06-27 | Hitachi Chemical Company, Ltd. | Rechargeable battery |
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2016
- 2016-01-31 CN CN201610063287.1A patent/CN105552292B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102544420A (en) * | 2012-03-12 | 2012-07-04 | 谢振华 | Cathode lug for novel lithium battery and manufacturing process method for cathode lug |
| CN103928651A (en) * | 2013-01-16 | 2014-07-16 | 徐卓辉 | Pole lug single body with embedded composite metal structure, row type pole lug, and manufacturing method of pole lug single body |
| CN104600235A (en) * | 2013-10-30 | 2015-05-06 | 徐卓辉 | Composite metal structure positive tab for polymer lithium batteries and manufacturing method thereof |
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| CN105552292A (en) | 2016-05-04 |
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