CN104393226A - Lithium battery tab hot press molding method - Google Patents
Lithium battery tab hot press molding method Download PDFInfo
- Publication number
- CN104393226A CN104393226A CN201410750103.XA CN201410750103A CN104393226A CN 104393226 A CN104393226 A CN 104393226A CN 201410750103 A CN201410750103 A CN 201410750103A CN 104393226 A CN104393226 A CN 104393226A
- Authority
- CN
- China
- Prior art keywords
- metal tape
- heating
- hot
- hot press
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000000465 moulding Methods 0.000 title claims abstract description 15
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 59
- 239000002184 metal Substances 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims abstract description 56
- 230000007246 mechanism Effects 0.000 claims abstract description 20
- 238000007731 hot pressing Methods 0.000 claims abstract description 16
- 238000002844 melting Methods 0.000 claims abstract description 9
- 230000008018 melting Effects 0.000 claims abstract description 9
- 238000007789 sealing Methods 0.000 claims abstract description 6
- 239000002390 adhesive tape Substances 0.000 claims description 24
- 238000001816 cooling Methods 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 claims description 6
- 238000007493 shaping process Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 230000007812 deficiency Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004904 shortening Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000012943 hotmelt Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 239000002699 waste material Substances 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/44—Joining a heated non plastics element to a plastics element
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Connection Of Batteries Or Terminals (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
The invention relates to a lithium battery tab hot press molding method. The method comprises the use of an intermediate hot pressing mechanism for bonding a tab glue strip to a metal tape by hot pressing; wherein the intermediate hot pressing mechanism is provided with upper and lower hot press end sockets which move synchronously and oppositely; the two sides of the hot press sealing head are respectively provided with left and right groups of metal tape heating mechanisms; each group of metal tape heating mechanism is provided with upper and lower heating heads which move synchronously and oppositely; the working temperature of the hot press end socket is greater than or equal to the softening point temperature of the tab glue strip and less than the melting point temperature of the tab glue strip; the working temperature of the heating head is greater than the melting point temperature of the tab glue strip; after the metal tape heating mechanism starts to heat the metal tape, and the lag time of the intermediate hot pressing mechanism is not less than 0.1 second, the hot press bonding and molding operation of the tab glue strip and the metal tape is started. The method has the advantages of good formability, stable and reliable heating temperature, easiness in monitoring and control, stable hot press operation, no damage to the outline dimension of the tab glue strip, and greatly shortened hot press molding time. The method disclosed by the invention is applicable to the manufacturing of a large-power tab.
Description
Technical field
The present invention relates to a kind of lithium battery manufacturing technology, particularly a kind of lithium battery pole ear hot-press molding method.
Background technology
(two aspects are shown: one is in use produce in the 1 second time needed for high frequency greatly for the high frequency lug forming machine medium-high frequency fluctuation range generally used at present, high frequency is in continuous change, two is that temperature difference that the work area of required high frequency in the course of work produces is large), and sudden high frequency efficiency occurs in not timing significantly reduces or simply do not work, after a period of time, automatically phenomenon may be recovered again.This is for the production process of continuous and automatic rolling lug product, controls difficulty very big, and this situation, will bringing on a disaster property consequence once occur and not disallowable.High frequency lug forming machine normally coordinates certain hour to adjust with the higher frequency be greater than corresponding to required minimum temperature of the power corresponding to minimum higher frequency, ensure that the temperature of surfaces of metallic strip is far above the fusing point needed for lug PP plastic glue strip, instantaneous touch and adding has depressed the bonding of PP glue and metal tape, hot-forming to upper and lower two-layer tab part again at next station.Shortcoming is: high-frequency fluctuation scope is large, and temporarily higher frequency cannot be changed into temperature intuitively and carry out monitor and forecast; Can so there is higher frequency in fact and sharply decline or work hardly in high frequency, may automatically recover again, this brings great challenge to control, how to find to reject these fatal waste products for a moment in continuous operation process.
In addition, in the hot-forming lug machine generally used now, only have upper and lower two heat-sealing heads, in hot pressing, heat-sealing head can only touch upper and lower two the surperficial PP tabs (the thickest) of metal tape herein, heat transfer mode successively by the outer surface of tab to intermediate layer to inner surface to metal tape outer surface finally in the middle of metal tape, when only having fusing point more than PP tab of temperature when metal tape outer surface, the fusion that just can complete the bonding and two-layer tab self between tab with metal tape is under a certain pressure bonding.Its deficiency is: heat transmission and the heating object heating-up time long; The temperature being directly pressed in the end socket on tab is necessarily higher than the fusing point of tab, and heating in heat trnasfer and pressure process for a long time, tab will seriously overflow, and affects length and width life size and outward appearance.If temperature is low, then the time will extend greatly, lower efficiency; The thoroughly fusing and again cooling and shaping again of tab two outer surfaces, again with the PP strong bond of aluminum-plastic composite membrane inner surface have certain adverse effect after must thoroughly melting again to this two surface of rear workshop section.
Summary of the invention
The technical problem to be solved in the present invention is for the deficiencies in the prior art, proposes a kind of shortening forming time, ensures the lithium battery pole ear hot-press molding method that tab overall dimensions are stable.
The technical problem to be solved in the present invention is achieved through the following technical solutions, a kind of lithium battery pole ear hot-press molding method, be characterized in: comprise intermediate heat press mechanism lug adhesive tape and metal tape are hot bonding, intermediate heat press mechanism is provided with the hot pressing end socket of upper and lower two synchronous relative motions, the two groups of metal tape heating arrangements in left and right are respectively equipped with in the both sides of above-mentioned pressure heat-sealing head, often organize the heating head that metal tape heating arrangements is equipped with upper and lower two synchronous relative motions, the working temperature of described hot pressing end socket is more than or equal to the softening point temperature of lug adhesive tape and is less than the melting temperature of lug adhesive tape, the working temperature of described heating head is greater than the melting temperature of lug adhesive tape, after metal tape heating arrangements starts heating to metal tape, after intermediate heat press mechanism sluggishness is no less than 0.1 second, starts to be hot bonding shaping to lug adhesive tape and metal tape.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and metal tape heating arrangements is 3 ~ 5 seconds to metal tape heating time.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and it is 5 ~ 10 seconds that intermediate heat press mechanism is hot bonding the time to lug adhesive tape and metal tape.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and the working temperature of described heating head is 140 ~ 250 DEG C.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, and the working temperature of described hot pressing end socket is 130 ~ 170 DEG C.
The technical problem to be solved in the present invention can also be come to realize further by the following technical programs, is provided with cooling pressure head in the outside of metal tape heating arrangements, and cooling pressure head is provided with upper and lower two refrigerating heads synchronous with the heating head of metal tape heating arrangements.
The present invention compared with prior art, first completed by two groups of metal tape heating arrangements surfaces to metal tape and be rapidly heated, after fusing point higher than lug adhesive tape, temporary transient hot melt is formed to lug adhesive tape inner surface, then is hot bonding shaping by intermediate heat press mechanism to lug adhesive tape and metal tape.Its good moldability, heating-up temperature is reliable and stable, and be easy to monitoring and be convenient to control, hot pressing is stablized, and can not destroy a grade overall dimension for ear adhesive tape, can shortening heat molded time greatly.Because large power electric lug heating surface (area) (HS is large, high-frequency heating is more unstable, and the present invention is more suitable for the making of large power electric lug.
Accompanying drawing explanation
Fig. 1 is structure diagram of the present invention.
Embodiment
A kind of lithium battery pole ear hot-press molding method, comprise intermediate heat press mechanism lug adhesive tape 4 and metal tape 1 are hot bonding, intermediate heat press mechanism is provided with the hot pressing end socket 3 of upper and lower two synchronous relative motions, the two groups of metal tape heating arrangements in left and right are respectively equipped with in the both sides of above-mentioned pressure heat-sealing head, often organize the heating head 2 that metal tape heating arrangements is equipped with upper and lower two synchronous relative motions, the working temperature of described hot pressing end socket is more than or equal to the softening point temperature of lug adhesive tape and is less than the melting temperature of lug adhesive tape; The working temperature of described heating head is greater than the melting temperature of lug adhesive tape, after metal tape heating arrangements starts heating to metal tape, after intermediate heat press mechanism sluggishness is no less than 0.1 second, starts to be hot bonding shaping to lug adhesive tape and metal tape.
Metal tape heating arrangements is 3 ~ 5 seconds to metal tape heating time.It is 5 ~ 10 seconds that intermediate heat press mechanism is hot bonding the time to lug adhesive tape and metal tape.
The working temperature of described heating head is 140 ~ 250 DEG C.The working temperature of described hot pressing end socket is 130 ~ 170 DEG C.
The distance of two groups of metal tape heating arrangements and intermediate heat press mechanism is more near better, and two spacings all are preferably less than 1mm.And the working temperature of the heating head of two groups of metal tape heating arrangements is identical or differ the smaller the better, be positioned at the heating head of metal tape top and bottom and hot pressing end socket should be in same level or its difference in height is the smaller the better.
Two groups of metal tape heating arrangements synchronously to metal tape heating, should differ the smaller the better.
Be provided with cooling pressure head 5 in the outside of metal tape heating arrangements, cooling pressure head is provided with upper and lower two refrigerating heads synchronous with the heating head of metal tape heating arrangements.Can be equipped with cooling pressure head in the outside of each metal tape heating arrangements, also only can install cooling pressure head additional in the side going out band as required, cooling pressure head be for arrange in pairs up and down.Cooling pressure head is for the nearer situation of lug adhesive tape on metal tape, and metal tape heating arrangements heats metal tape, and the adhesive tape that can affect both sides is bonding with metal tape, so arrange cooling pressure head, cools outside two of metal tape heating arrangements.
Claims (6)
1. a lithium battery pole ear hot-press molding method, it is characterized in that: comprise intermediate heat press mechanism lug adhesive tape and metal tape are hot bonding, intermediate heat press mechanism is provided with the hot pressing end socket of upper and lower two synchronous relative motions, the two groups of metal tape heating arrangements in left and right are respectively equipped with in the both sides of above-mentioned pressure heat-sealing head, often organize the heating head that metal tape heating arrangements is equipped with upper and lower two synchronous relative motions, the working temperature of described hot pressing end socket is more than or equal to the softening point temperature of lug adhesive tape and is less than the melting temperature of lug adhesive tape; The working temperature of described heating head is greater than the melting temperature of lug adhesive tape, after metal tape heating arrangements starts heating to metal tape, after intermediate heat press mechanism sluggishness is no less than 0.1 second, starts to be hot bonding shaping to lug adhesive tape and metal tape.
2. lithium battery pole ear hot-press molding method according to claim 1, is characterized in that: metal tape heating arrangements is 3 ~ 5 seconds to metal tape heating time.
3. lithium battery pole ear hot-press molding method according to claim 1, is characterized in that: it is 5 ~ 10 seconds that intermediate heat press mechanism is hot bonding the time to lug adhesive tape and metal tape.
4. lithium battery pole ear hot-press molding method according to claim 1, is characterized in that: the working temperature of described heating head is 140 ~ 250 DEG C.
5. lithium battery pole ear hot-press molding method according to claim 1, is characterized in that: the working temperature of described hot pressing end socket is 130 ~ 170 DEG C.
6. lithium battery pole ear hot-press molding method according to claim 1, is characterized in that: be provided with cooling pressure head in the outside of metal tape heating arrangements, and cooling pressure head is provided with upper and lower two refrigerating heads synchronous with the heating head of metal tape heating arrangements.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750103.XA CN104393226B (en) | 2014-12-10 | 2014-12-10 | A kind of lithium battery pole ear hot-press molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410750103.XA CN104393226B (en) | 2014-12-10 | 2014-12-10 | A kind of lithium battery pole ear hot-press molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104393226A true CN104393226A (en) | 2015-03-04 |
| CN104393226B CN104393226B (en) | 2015-08-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410750103.XA Active CN104393226B (en) | 2014-12-10 | 2014-12-10 | A kind of lithium battery pole ear hot-press molding method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104393226B (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014950A (en) * | 2015-08-05 | 2015-11-04 | 无锡市百事杰金属制品科技有限公司 | Hot press molding mechanism for electrode lugs of lithium-ion power batteries |
| WO2017034380A1 (en) * | 2015-08-27 | 2017-03-02 | 주식회사 엘지화학 | Secondary battery sealing device |
| CN107958987A (en) * | 2017-11-24 | 2018-04-24 | 江门市拓联电子科技有限公司 | For fixing the assisted heating device of lug adhesive tape |
| CN108091813A (en) * | 2017-12-28 | 2018-05-29 | 深圳名飞远科技有限公司 | Power battery positions heating arrangements and lug hot briquetting method with lug metal tape |
| CN109664514A (en) * | 2017-10-17 | 2019-04-23 | 苏州金钥匙测试***有限公司 | A kind of energization hot-melting mechanism suitable for Plastic bar |
| CN110718673A (en) * | 2018-07-12 | 2020-01-21 | 麦垲门电子科技(上海)有限公司 | Power polymer lithium battery tab hot press |
| CN110712375A (en) * | 2018-07-12 | 2020-01-21 | 麦垲门电子科技(上海)有限公司 | Utmost point ear hot press |
| CN110936623A (en) * | 2019-12-12 | 2020-03-31 | 惠州市华沃科技有限公司 | Metal adhesive tape thermal compounding process and thermal compounding machine |
| US10777840B2 (en) | 2015-08-27 | 2020-09-15 | Lg Chem, Ltd. | Apparatus for sealing secondary battery |
| CN115084791A (en) * | 2022-06-23 | 2022-09-20 | 万向一二三股份公司 | Manufacturing method of synthetic tab |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US6063523A (en) * | 1999-04-16 | 2000-05-16 | Quallion, Llc | Battery tab attachment method and apparatus |
| CN101436653A (en) * | 2008-12-15 | 2009-05-20 | 厦门宝龙工业股份有限公司 | Technique for making lithium battery pole ear |
| CN102354735A (en) * | 2011-08-29 | 2012-02-15 | 能一郎科技股份有限公司 | Method for preparing aluminum, nickel and copper tabs for flexibly packaged or polymer lithium ion power battery |
| CN103606641A (en) * | 2013-09-30 | 2014-02-26 | 深圳市泽诚自动化设备有限公司 | Automatic cathode tab moulding machine |
-
2014
- 2014-12-10 CN CN201410750103.XA patent/CN104393226B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6063523A (en) * | 1999-04-16 | 2000-05-16 | Quallion, Llc | Battery tab attachment method and apparatus |
| CN101436653A (en) * | 2008-12-15 | 2009-05-20 | 厦门宝龙工业股份有限公司 | Technique for making lithium battery pole ear |
| CN102354735A (en) * | 2011-08-29 | 2012-02-15 | 能一郎科技股份有限公司 | Method for preparing aluminum, nickel and copper tabs for flexibly packaged or polymer lithium ion power battery |
| CN103606641A (en) * | 2013-09-30 | 2014-02-26 | 深圳市泽诚自动化设备有限公司 | Automatic cathode tab moulding machine |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105014950A (en) * | 2015-08-05 | 2015-11-04 | 无锡市百事杰金属制品科技有限公司 | Hot press molding mechanism for electrode lugs of lithium-ion power batteries |
| US10777840B2 (en) | 2015-08-27 | 2020-09-15 | Lg Chem, Ltd. | Apparatus for sealing secondary battery |
| WO2017034380A1 (en) * | 2015-08-27 | 2017-03-02 | 주식회사 엘지화학 | Secondary battery sealing device |
| CN109664514A (en) * | 2017-10-17 | 2019-04-23 | 苏州金钥匙测试***有限公司 | A kind of energization hot-melting mechanism suitable for Plastic bar |
| CN109664514B (en) * | 2017-10-17 | 2024-03-29 | 苏州金钥匙测试***有限公司 | Electric hot melting mechanism suitable for plastic bar stock |
| CN107958987A (en) * | 2017-11-24 | 2018-04-24 | 江门市拓联电子科技有限公司 | For fixing the assisted heating device of lug adhesive tape |
| CN108091813A (en) * | 2017-12-28 | 2018-05-29 | 深圳名飞远科技有限公司 | Power battery positions heating arrangements and lug hot briquetting method with lug metal tape |
| CN110712375A (en) * | 2018-07-12 | 2020-01-21 | 麦垲门电子科技(上海)有限公司 | Utmost point ear hot press |
| CN110718673B (en) * | 2018-07-12 | 2021-06-08 | 麦垲门电子科技(上海)有限公司 | Power polymer lithium battery tab hot press |
| CN110718673A (en) * | 2018-07-12 | 2020-01-21 | 麦垲门电子科技(上海)有限公司 | Power polymer lithium battery tab hot press |
| CN110936623A (en) * | 2019-12-12 | 2020-03-31 | 惠州市华沃科技有限公司 | Metal adhesive tape thermal compounding process and thermal compounding machine |
| CN110936623B (en) * | 2019-12-12 | 2020-10-20 | 惠州市华沃科技有限公司 | Metal adhesive tape thermal compounding process and thermal compounding machine |
| CN115084791A (en) * | 2022-06-23 | 2022-09-20 | 万向一二三股份公司 | Manufacturing method of synthetic tab |
| CN115084791B (en) * | 2022-06-23 | 2023-11-03 | 万向一二三股份公司 | Method for manufacturing synthetic electrode lug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104393226B (en) | 2015-08-26 |
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Address after: 222000 Guangshen science and technology innovation base, No.1 East Road, Dongfang Avenue, Lianyungang Economic and Technological Development Zone, Lianyungang City, Jiangsu Province Patentee after: Jiangsu delixin Electronic Technology Co.,Ltd. Address before: 222000 Guangshen science and technology innovation base, No.1 East Road, Dongfang Avenue, Lianyungang Economic and Technological Development Zone, Lianyungang City, Jiangsu Province Patentee before: LIANYUNGANG DELIXIN ELCTRONICE & TECHNOLOGY Co.,Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: A Hot Pressing Method for Lithium Battery Ears Granted publication date: 20150826 Pledgee: Lianyungang branch of Bank of Jiangsu Co.,Ltd. Pledgor: Jiangsu delixin Electronic Technology Co.,Ltd. Registration number: Y2024980003343 |