CN104900921A - Technology for producing high magnification power cylinder lithium ion battery - Google Patents
Technology for producing high magnification power cylinder lithium ion battery Download PDFInfo
- Publication number
- CN104900921A CN104900921A CN201510164545.0A CN201510164545A CN104900921A CN 104900921 A CN104900921 A CN 104900921A CN 201510164545 A CN201510164545 A CN 201510164545A CN 104900921 A CN104900921 A CN 104900921A
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- Prior art keywords
- continuously
- high magnification
- lithium ion
- ion battery
- making
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- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/058—Construction or manufacture
- H01M10/0587—Construction or manufacture of accumulators having only wound construction elements, i.e. wound positive electrodes, wound negative electrodes and wound separators
-
- 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
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
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- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
Abstract
The invention discloses a technology for producing a high magnification power cylinder lithium ion battery, which comprises the following steps: 1)burdening anode, coating and flaking; 2)burdening cathode, coating and flaking; 3)reeling; 4)casing, injecting a liquid, sealing and formatting; 5)detecting; and 6)packaging and shipping. The technology has the advantages that 1)important processes of flaking and reeling of the high magnification power cylinder lithium ion battery can be easily completed by a fully-automatic machine; 2)according to steps of casing, injecting a liquid, sealing and formatting, the problems of thin tabs of a cathode tab as well as difficult wielding, welding leakage and easy shedding of a copper material can be solved, so that the cathode is fixedly connected to a steel case; 3)according to the high magnification power cylinder lithium ion battery, the specific surface area is reduced, tabs can be increased, and internal resistance can be reduced as possible; and 4)high magnification can be realized under prerequisite that high capacity is kept.
Description
Technical field
The present invention relates to the production technology of battery, particularly relate to a kind of production technology of high magnification power cylindrical lithium ion battery.
Background technology
The technology of the production and application of tradition high-multiplying power lithium ion battery is each spot welding in two ends lug of negative pole, again lug point is welded in bottom box hat, its shortcoming is: 1, electrode two-end-point welding electrode ear is difficult to realize automatic film-making and auto reeling in process of production, have a strong impact on the automation of this important procedure, become bottleneck for the production automation.2, the reduction of serious restriction high magnification power cylindrical lithium ion battery internal resistance.3, to welding electrode ear in the middle part of negative pole, capacity of negative plates must be made considerably beyond positive electrode capacity, to prevent lug place from analysing lithium, thus the lifting of limit capacity.
Summary of the invention
The present invention is to solve above-mentioned deficiency, provides a kind of production technology of high magnification power cylindrical lithium ion battery.
Above-mentioned purpose of the present invention is realized by following technical scheme: a kind of production technology of high magnification power cylindrical lithium ion battery, is characterized in that: comprise the following steps:
(1) positive pole batching, coating and film-making: positive pole adopts formula: NCA: SUP: SK6: PVDF=92.5: 1.5: 3.5: 2.5, by batching, interval coating continuously, plural lug position is stayed, continuous compressing tablet, continuously itemize, film-making continuously within the scope of every plate electrode;
(2) cathode blending, coating and film-making: negative pole adopts formula: C: SUP: CMC: SBR (dry weight): 94: 1.5: 1.5: 2, by batching, interval coating continuously, continuous compressing tablet, continuously itemize, film-making continuously, cut out plural lug within the scope of every plate electrode;
(3) reel: the both positive and negative polarity after making is rolled into core by automatic winding-machine;
(4) fill shell, fluid injection, seal, change into:
A. negative pole connects: first battery core negative electrode lug end being loaded onto a slice has on the insulating trip with holes of double faced adhesive tape, the solid nickel sheet of a slice is stained with again on double faced adhesive tape insulating trip, then negative lug is stacked in nickel sheet and flattens, finally core is loaded in box hat, and by negative pole end and box hat base point welded together;
B. positive pole connects: the core installing box hat loads onto insulating trip, slot rolling, is then soldered on block with Laser Welding or ultrasonic bond one by one by positive pole ear, then by suck-back fluid injection, seal, change into, battery completes;
(5) detect;
(6) shipment is packed.
The present invention's advantage is compared with prior art:
1, the important procedures such as the film-making of high magnification power cylindrical lithium ion battery, winding are the invention enables easily can to complete with full-automatic machine.
2, fill shell, fluid injection in the present invention, seal, change into structure, negative lug because lug is too thin and be that copper product and spot welding are not gone up, welded problems such as leaking or easily come off, can not be made negative pole and box hat be connected firmly, become the key of the present invention's realization.
3, the present invention makes high magnification power cylindrical lithium ion battery design while reduction specific area, can increase lug, reduce internal resistance as much as possible.
4, the present invention makes high-magnification cylindrical lithium ion battery achieve high magnification under the prerequisite keeping high power capacity.
Accompanying drawing explanation
Fig. 1 is process chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention is described in further detail.
As shown in Figure 1, a kind of production technology of high magnification power cylindrical lithium ion battery, is characterized in that: comprise the following steps:
(1) positive pole batching, coating and film-making: positive pole adopts formula: NCA: SUP: SK6: PVDF=92.5: 1.5: 3.5: 2.5, by batching, interval coating continuously, plural lug position is stayed, continuous compressing tablet, continuously itemize, film-making continuously within the scope of every plate electrode;
(2) cathode blending, coating and film-making: negative pole adopts formula: C: SUP: CMC: SBR (dry weight): 94: 1.5: 1.5: 2, by batching, interval coating continuously, continuous compressing tablet, continuously itemize, film-making continuously, cut out plural lug within the scope of every plate electrode;
(3) reel: the both positive and negative polarity after making is rolled into core by automatic winding-machine;
(4) fill shell, fluid injection, seal, change into:
A. negative pole connects: first battery core negative electrode lug end being loaded onto a slice has on the insulating trip with holes of double faced adhesive tape, the solid nickel sheet of a slice is stained with again on double faced adhesive tape insulating trip, then negative lug is stacked in nickel sheet and flattens, finally core is loaded in box hat, and by negative pole end and box hat base point welded together;
B. positive pole connects: the core installing box hat loads onto insulating trip, slot rolling, is then soldered on block with Laser Welding or ultrasonic bond one by one by positive pole ear, then by suck-back fluid injection, seal, change into, battery completes;
(5) detect;
(6) shipment is packed.
The present invention makes high magnification power cylindrical lithium ion battery design while reduction specific area, can increase lug, reduce internal resistance as much as possible.For 18650, within each 4 lugs of both positive and negative polarity can make the internal resistance of cell control to 5 milliohms.
The present invention makes high-magnification cylindrical lithium ion battery achieve high magnification under the prerequisite keeping high power capacity.For 18650, achieve 15C continuous discharge under the prerequisite of capacity 2600mAh, moment can reach 50C.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize specification of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (1)
1. a production technology for high magnification power cylindrical lithium ion battery, is characterized in that: comprise the following steps:
(1) positive pole batching, coating and film-making: positive pole adopts formula: NCA: SUP: SK6: PVDF=92.5: 1.5: 3.5: 2.5, by batching, interval coating continuously, plural lug position is stayed, continuous compressing tablet, continuously itemize, film-making continuously within the scope of every plate electrode;
(2) cathode blending, coating and film-making: negative pole adopts formula: C: SUP: CMC: SBR (dry weight): 94: 1.5: 1.5: 2, by batching, interval coating continuously, continuous compressing tablet, continuously itemize, film-making continuously, cut out plural lug within the scope of every plate electrode;
(3) reel: the both positive and negative polarity after making is rolled into core by automatic winding-machine;
(4) fill shell, fluid injection, seal, change into:
A. negative pole connects: first battery core negative electrode lug end being loaded onto a slice has on the insulating trip with holes of double faced adhesive tape, the solid nickel sheet of a slice is stained with again on double faced adhesive tape insulating trip, then negative lug is stacked in nickel sheet and flattens, finally core is loaded in box hat, and by negative pole end and box hat base point welded together;
B. positive pole connects: the core installing box hat loads onto insulating trip, slot rolling, is then soldered on block with Laser Welding or ultrasonic bond one by one by positive pole ear, then by suck-back fluid injection, seal, change into, battery completes.
(5) detect;
(6) shipment is packed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164545.0A CN104900921A (en) | 2015-04-03 | 2015-04-03 | Technology for producing high magnification power cylinder lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510164545.0A CN104900921A (en) | 2015-04-03 | 2015-04-03 | Technology for producing high magnification power cylinder lithium ion battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104900921A true CN104900921A (en) | 2015-09-09 |
Family
ID=54033434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510164545.0A Pending CN104900921A (en) | 2015-04-03 | 2015-04-03 | Technology for producing high magnification power cylinder lithium ion battery |
Country Status (1)
| Country | Link |
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| CN (1) | CN104900921A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105226329A (en) * | 2015-10-20 | 2016-01-06 | 四川科能锂电有限公司 | A kind of lithium battery production technology efficiently |
| CN105261796A (en) * | 2015-09-23 | 2016-01-20 | 深圳市博力康电池有限公司 | Preparation method of quickly fully-charged cylindrical power lithium-ion battery cell |
| CN108963347A (en) * | 2018-06-26 | 2018-12-07 | 苏州英诺达自动化科技有限公司 | A kind of preparation method of novel lithium battery |
| CN111180785A (en) * | 2020-02-10 | 2020-05-19 | 陈曦 | Method for manufacturing flexible battery |
Citations (8)
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|---|---|---|---|---|
| CN201364915Y (en) * | 2009-03-06 | 2009-12-16 | 天津力神电池股份有限公司 | Battery cover of square-type lithium ion battery |
| CN101931105A (en) * | 2009-06-23 | 2010-12-29 | 天津市捷威动力工业有限公司 | Lithium-ion power battery and manufacturing method thereof |
| CN102117931A (en) * | 2009-12-31 | 2011-07-06 | 珠海光宇电池有限公司 | High-rate cylindrical lithium ion battery with anode of modified lithium manganese oxide |
| CN202308093U (en) * | 2011-10-27 | 2012-07-04 | 深圳市中韬电池有限公司 | Lithium battery with aluminum casing |
| CN202678451U (en) * | 2011-12-19 | 2013-01-16 | 东莞市振华新能源科技有限公司 | Square liquid injection jig for lithium ion battery |
| CN103165854A (en) * | 2011-12-19 | 2013-06-19 | 东莞市振华新能源科技有限公司 | Liquid injecting method and clamp of square lithium ion battery |
| CN103872276A (en) * | 2014-03-25 | 2014-06-18 | 深圳市振华新材料股份有限公司 | Lithium ion battery filled polymer composition, filling method, lithium battery and application |
| CN104167534A (en) * | 2014-08-06 | 2014-11-26 | 广西卓能新能源科技有限公司 | Novel cylindrical lithium ion battery cell and preparation method thereof |
-
2015
- 2015-04-03 CN CN201510164545.0A patent/CN104900921A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201364915Y (en) * | 2009-03-06 | 2009-12-16 | 天津力神电池股份有限公司 | Battery cover of square-type lithium ion battery |
| CN101931105A (en) * | 2009-06-23 | 2010-12-29 | 天津市捷威动力工业有限公司 | Lithium-ion power battery and manufacturing method thereof |
| CN102117931A (en) * | 2009-12-31 | 2011-07-06 | 珠海光宇电池有限公司 | High-rate cylindrical lithium ion battery with anode of modified lithium manganese oxide |
| CN202308093U (en) * | 2011-10-27 | 2012-07-04 | 深圳市中韬电池有限公司 | Lithium battery with aluminum casing |
| CN202678451U (en) * | 2011-12-19 | 2013-01-16 | 东莞市振华新能源科技有限公司 | Square liquid injection jig for lithium ion battery |
| CN103165854A (en) * | 2011-12-19 | 2013-06-19 | 东莞市振华新能源科技有限公司 | Liquid injecting method and clamp of square lithium ion battery |
| CN103872276A (en) * | 2014-03-25 | 2014-06-18 | 深圳市振华新材料股份有限公司 | Lithium ion battery filled polymer composition, filling method, lithium battery and application |
| CN104167534A (en) * | 2014-08-06 | 2014-11-26 | 广西卓能新能源科技有限公司 | Novel cylindrical lithium ion battery cell and preparation method thereof |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105261796A (en) * | 2015-09-23 | 2016-01-20 | 深圳市博力康电池有限公司 | Preparation method of quickly fully-charged cylindrical power lithium-ion battery cell |
| CN105226329A (en) * | 2015-10-20 | 2016-01-06 | 四川科能锂电有限公司 | A kind of lithium battery production technology efficiently |
| CN108963347A (en) * | 2018-06-26 | 2018-12-07 | 苏州英诺达自动化科技有限公司 | A kind of preparation method of novel lithium battery |
| CN111180785A (en) * | 2020-02-10 | 2020-05-19 | 陈曦 | Method for manufacturing flexible battery |
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Application publication date: 20150909 |
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