CN101931094A - Manufacturing method of cylindrical battery with enhanced airtightness - Google Patents
Manufacturing method of cylindrical battery with enhanced airtightness Download PDFInfo
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- CN101931094A CN101931094A CN2009101083833A CN200910108383A CN101931094A CN 101931094 A CN101931094 A CN 101931094A CN 2009101083833 A CN2009101083833 A CN 2009101083833A CN 200910108383 A CN200910108383 A CN 200910108383A CN 101931094 A CN101931094 A CN 101931094A
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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
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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
- 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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Abstract
The invention discloses a manufacturing method of a cylindrical battery with enhanced airtightness. The manufacturing method comprises the following steps of: putting a battery pole group into a battery barrel of the cylindrical battery; forming an annular groove outside the battery barrel, and forming a first annular wall at an open end above the annular groove for the battery barrel; placing a combined cap above the annular groove in the battery barrel, wherein the combined cap is connected with the battery pole group and comprises an insulating sealing member which is provided with a second annular wall; and after placing the combined cap, bending the first annular wall and the second annular wall inwards at the same time by using external force to ensure that the second annular wall is clung to the combined cap, and the first annular wall is clung to the second annular wall. By using the manufacturing method of the battery, the bent rumples generated by the first annular wall per se is consistent with the rumples generated by the insulating sealing member, and the sealing effect of an end cover of a finished product battery is greatly improved.
Description
Technical field
The present invention relates to battery and make the field, be specifically related to a kind of manufacture method of cylindrical battery.
Background technology
Please refer to Fig. 1 to Fig. 7, cylindrical battery generally comprises battery barrel 1, is arranged on the battery utmost point group 3 that forms of reeling in the battery barrel 1, the parts such as cylindric bracing frame 4 that are installed in the combination cover cap 2 on battery barrel 1 top and are arranged on battery utmost point group 3 centres.Battery barrel 1 bottom also be provided for usually with just/bottom insulation circle 7 that negative pole exit 52 and battery utmost point group separate, the top of battery barrel is provided with and is used for top insulated ring 6 that battery utmost point group 3 and combination cover cap 2 insulation are separated.This top insulated ring 6 is pressed in the top of battery utmost point group 3 and is stuck in the cannelure 12 times of moulding on the battery barrel 1.The center of this top insulated ring 6 is provided with one can make the lug hole that upwardly extending bearing/anodal exit 51 passes, its slightly larger in diameter also can be held this negative/anodal exit 51 in the diameter of bracing frame 4, and this lug hole also is used for putting into bracing frame 4 from the open end of battery barrel 1.In the existing cylindrical battery manufacturing process, generally by roller groove processes moulding cannelure 12, in moulding cannelure 12, cannelure 12 tops of battery barrel 1 then are formed for clamping the annular wall 11 of combination cover cap 2.During packaged battery, combination cover cap is prevented above top insulated ring 6, simultaneously upwardly extending bearing/anodal exit 51 is welded on the combination cover cap 2, afterwards, annular wall 11 bendings is pressed together on the outermost insulating sealer 22 of combination cover cap 2 with external force F1.
Please refer to Fig. 7, the concrete structure of existing combination cover cap 2 comprise extraction electrode top board 21, be used for thermistor 23, explosion-proof pressure protective device 24 and the conductive plate 25 that welds together with pressure protective device 24 at overheat condition incision outage stream.Described top board 21, thermistor 23, pressure protective device 24 and conductive plate 25 are closely together by insulating sealer 22.
To shown in Figure 6, the concrete steps of making cylindrical battery in the prior art generally comprise as Fig. 1:
At first making battery barrel 1, place the bottom of battery barrel 1 will be just/bottom insulation circle 7 that negative pole exit 52 and battery utmost point group 3 separate; In battery barrel 1, put into battery utmost point group 3 then, and with downward just/negative pole exit 52 walks around bottom insulation circle 7 and is connected with bottom electrode.
Then as shown in Figure 1, top insulated ring 6 is placed on the upper surface of battery utmost point group 3, and makes the negative/anodal exit 51 that extends straight up pass the lug hole of top insulated ring 6.
Afterwards, as shown in Figure 2, on battery barrel 1, utilize rolling process to form cannelure 1, this cannelure 12 is at the battery barrel 1 inner flange (not indicating) that is pressed on the top insulated ring 6 that forms, the flange 1 of this battery barrel 1 inside is pressed on the battery utmost point group 3 top insulated ring 6, forms annular wall 11 at the top of battery barrel 1 simultaneously.
Then, make bracing frame 4 pass the inside center that battery utmost point group 3 is stretched in lug hole on the top insulated ring 6 as shown in Figure 3, and form with battery utmost point group 3 and to closely cooperate.
At last, the free end of upwardly extending bearing/anodal exit 51 is welded on conductive plate 25 bottoms of combination cover cap 2, behind battery barrel 1 inner injection electrolyte, and combination cover cap 2 is placed on the open end (order of above step is decided on concrete technology) of battery barrel 1, and make the annular wall 11 at battery barrel 1 top center on this combination cover cap, and be adjacent to the insulating sealer 22 of combination cover cap periphery.Utilize external force F1 that this annular wall pressing is adjacent on insulating sealer 22, obtain cylindrical battery shown in Figure 6.
Yet in the existing cylindrical cell manufacturing method, combination cover cap 2 is in advance by insulating sealer 22 bending spiral-locks together.After whole combination cover cap 2 was placed on battery barrel 1 top, annular wall 11 peripheries were on the center bends with the insulating sealer 22 that is fitted in combination cover cap 2 peripheries.But, it is inconsistent that annular wall 11 is assembled the gauffer that combination cover caps 2 are produced at bending gauffer that itself produces during to the center bending under the effect of external force F1 and insulating sealer 22, cause described annular wall 11 after the battery assembling, can not fit tightly, make that finished product cell sealing effect is bad with insulating sealer 22.The battery combination block disqualification rate of being made by this conventional method reaches 0.1%.
Therefore, demand a kind of new cylindrical cell manufacturing method urgently to overcome the defective in the classical production process.
Summary of the invention
The technical problem to be solved in the present invention is to remedy above-mentioned the deficiencies in the prior art, and a kind of cylindrical cell manufacturing method that strengthens sealing is provided.
Technical problem of the present invention is solved by the following technical programs: a kind of cylindrical cell manufacturing method that strengthens sealing may further comprise the steps: the battery utmost point is assembled in the battery barrel of cylindrical battery; Moulding cannelure outside described battery barrel, this cannelure is at the inner flange that compresses the top insulated ring that forms of battery barrel, and described battery barrel forms first annular wall at the open end of upside of the ring groove; Combination cover cap is placed on upside of the ring groove in the battery barrel, and described combination cover cap connects battery utmost point group, comprises insulating sealer, and this insulating sealer has second annular wall; After combination cover cap places, utilize external force with first annular wall and the inwardly bending simultaneously of second annular wall, described second annular wall is adjacent on combination cover cap, and described first annular wall is adjacent on second annular wall.
Before the battery utmost point is assembled into battery barrel, at described battery barrel bottom installing insulated ring, just to draw downwards/the negative pole exit from battery utmost point group, just described/negative pole exit is walked around insulated ring and is contacted with the bottom of battery barrel.
Further, installing insulated ring in described battery utmost point group top is upwards drawn negative/anodal exit from battery utmost point group, and described bearing/anodal exit passes the insulated ring of battery utmost point group top and is welded on the bottom of described combination cover cap.
Then, bracing frame is packed in the middle of the described battery utmost point group.
In this example, before negative/anodal exit and combination cover cap welding or afterwards, battery utmost point group injection electrolyte that can be in battery barrel.
Preferably; described combination cover cap comprises the top board of pressure protective device, thermistor and the conduction of the conductive plate that connects battery utmost point group, conduction, and the conductive plate that described combination cover cap superposes successively, pressure protective device, thermistor and top board are combined from fastening on every side by insulating sealer.
Described insulating sealer is cylindric, and its inside is provided with and is used for clamping from both sides up and down first positioning table and second positioning table of top board, thermistor, pressure protective device.Described insulating sealer is provided with below second positioning table and is used for the ring of accommodating of fence conductive plate.
In this example, described second annular wall is formed on the first positioning table top of described insulating sealer, after combination cover cap places, smears fluid sealant between second annular wall of first annular wall and insulating sealer.
Concrete, described pressure protective device comprises elastic portion of welding conductive plate and the connecting portion that extends from elastic portion, described elastic portion and connecting portion junction offer the protection breach.
The present invention's beneficial effect compared with prior art is: the 1) cylindrical cell manufacturing method of enhancing sealing of the present invention, with first annular wall of battery barrel and the second annular wall inwardly bending simultaneously of insulating sealer, the bending gauffer that makes battery barrel first annular wall itself produce coincide consistent with the gauffer that insulating sealer is produced, greatly improved the sealing effectiveness of end cover for battery cells, the end cap seal disqualification rate drops to 0.02% by original 0.1%; 2) cylindrical cell manufacturing method of enhancing sealing of the present invention, the combination cover cap of its use adopts novel insulating sealer structure, this insulating sealer can not only fit together some elements of combination cover cap in advance, convenient transportation and battery assembling, improve battery packaging efficiency and precision, also can finish simultaneously the synchronous integration of battery barrel and combination cover cap, improve sealing.
Description of drawings
Fig. 1 is in the existing cylindrical cell manufacturing method putting into the top insulated ring cutaway view of battery barrel;
Fig. 2 is the cylindrical battery cutaway view after the existing cylindrical cell manufacturing method central roll groove technology;
Fig. 3 is in the existing cylindrical cell manufacturing method putting into bracing frame the cylindrical battery cutaway view of utmost point group centre;
Fig. 4 is in the existing cylindrical cell manufacturing method being placed on combination cover cap the cutaway view at battery barrel top;
Fig. 5 is a cutaway view of integrating combination cover cap in the existing cylindrical cell manufacturing method;
Fig. 6 is the complete cylindrical battery cutaway view of combination in the existing cylindrical cell manufacturing method;
Fig. 7 is the cutaway view of the combination cover cap in the existing cylindrical cell manufacturing method;
Fig. 8 is the cutaway view of combination cover cap in the cylindrical cell manufacturing method of the present invention;
Fig. 9 is in the cylindrical cell manufacturing method of the present invention putting into the bottom insulation circle cutaway view of battery barrel bottom;
Figure 10 is in the cylindrical cell manufacturing method of the present invention putting into the utmost point group cutaway view of battery barrel;
Figure 11 is in the cylindrical cell manufacturing method of the present invention being placed on the top insulated ring cutaway view of utmost point group upper surface;
Figure 12 is the cylindrical battery cutaway view after the cylindrical cell manufacturing method central roll groove technology of the present invention;
Figure 13 is the cylindrical battery cutaway view of moulding annular wall in the cylindrical cell manufacturing method of the present invention;
Figure 14 is for after inserting combination cover cap of the present invention in the cylindrical cell manufacturing method of the present invention, and annular wall is close to the cutaway view of insulating sealer;
Figure 15 is the cylindrical battery cutaway view of crimping annular wall and insulating sealer simultaneously in the cylindrical cell manufacturing method of the present invention.
The cylindrical battery cutaway view that Figure 16 completes for cylindrical cell manufacturing method of the present invention.
Embodiment
Also in conjunction with the accompanying drawings the present invention is described in further details below by concrete execution mode.
The present invention relates to a kind of cylindrical cell manufacturing method that strengthens sealing, this circular batteries manufacture method adopts the novel combination cover cap 12 with second annular wall, smears fluid sealant between second annular wall 162 of first annular wall 111 of battery barrel 11 and insulating sealer 122; With second annular wall 162 of first annular wall 111 of battery barrel 11 and insulating sealer 122 simultaneously to the bending of inside battery direction, make that first annular wall, the 111 bending gauffers that produce of battery barrel 11 own are identical consistent with the gauffer that insulating sealer 122 assembling combination cover caps 12 are produced, improve the sealing of end cover for battery cells.
Please refer to Figure 16, the cylindrical battery in the present embodiment mainly comprises battery barrel 11, is arranged on the battery utmost point group 13 that forms of reeling in the battery barrel 11, the parts such as cylindric bracing frame 14 that are installed in the combination cover cap 12 on battery barrel 11 tops and are arranged on battery utmost point group 13 centres.
Described battery barrel 11 passes through roller groove technology at battery barrel 11 outside moulding cannelures 112.In the present embodiment, this roller groove technology is the disc that three positions are the rotation of positive three-cornered arrangement, and the battery barrel of processing itself also rotates, and by the relative motion of disc and battery barrel, goes out uniform annular groove at the outside roller of battery barrel.This cannelure 112 forms the flange that compresses top insulated ring 16 in battery barrel 11 inside, and the open end of described battery barrel 11 above cannelure 112 forms first annular wall 111.
In the present embodiment, described combination cover cap 12 comprises the conductive plate 128 that connects battery utmost point group 13, pressure protective device 124, the thermistor 123 of conduction and the top board 121 that conducts electricity.The conductive plate 128 that described combination cover cap 12 superposes successively, pressure protective device 124, thermistor 123 and top board 121 are combined from fastening on every side by insulating sealer 122.Conductive plate 128 bottoms are provided with some pads, this pad and battery utmost point group 13 upwardly extending bearing/anodal exit 151 welding.Conductive plate 128 welds together with pressure protective device 124.
Described insulating sealer 111 is cylindric, and its inside is provided with and is used for clamping successively from both sides up and down first positioning table 125 and second positioning table 132 of top board 121, thermistor 123, pressure protective device 124.Described insulating sealer 111 below second positioning table 132, be provided be used for fence conductive plate 128 accommodate the ring 142.In this example, described insulating sealer 111 forms second annular wall 162 on first positioning table, 125 tops.
Adopted thermistor 123 to connect pressure protective device 124 and top board 121 in this example.Lithium ion cylinder shape battery is because light weight and high-energy-density, has to be better than other type rechargeable battery, such as nickel-cadmium cell and nickel metal hydride battery.Lithium ion battery is extremely responsive to overcharging, and fail safe is that battery is made many problems of paying close attention to always.For example, battery unit becomes and overcharges, and the electrode that lithium metal may be plated to battery unit gets on, because lithium metal has inflammable characteristic and initiation fire, when battery temperature becomes too high, gets rid of toxic gas.So need thermistor 123 as safety guard, raise when overheated at battery temperature, temperature is between 80 to 90 degrees centigrade the time in the practice, and the resistance of this thermistor 123 raises and cuts off electric current, prevents disaster.
Consider from fail safe in this example, further adopted pressure protective device 124, this pressure protective device 124 is destructive protective devices.In general, the pressure protective device of battery need tolerate certain pressure, and when the withstand voltage limit of inner pressure of battery overpressure protective device, pressure protective device is made the battery pressure release by internal sabotage, prevents battery explosion.Described pressure protective device 124 comprise the elastic portion 242 of welding conductive plate 128 and from elastic portion 242 to around the connecting portion 246 that extends, described elastic portion 242 and connecting portion 246 junctions offer protection breach 244.This protection breach 244 is when the withstand voltage limit of inner pressure of battery overpressure protective device; pressure protective device is bursting at the collision from the protection breach 244 of elastic portion 242 and connecting portion 246 junctions, makes the battery pressure release to prevent blast; but from then on battery is damaged, and can not re-use.
Please refer to Fig. 8 to Figure 15, below specifically introduce the cylindrical cell manufacturing method of the enhancing sealing in this example, specifically may further comprise the steps:
As Fig. 9 and shown in Figure 10,, battery utmost point group 13 is packed in the battery barrel 11 of cylindrical battery at described battery barrel 11 bottoms installings bottom insulation circle 17; Just drawing downwards/negative pole exit 152 from battery utmost point group 13, just described/negative pole exit 152 is walked around insulated ring 17 and is contacted with the bottom of battery barrel 11.
As shown in figure 11, installing top, described battery utmost point group 13 tops insulated ring 16.Further, upwards draw negative/anodal exit 151 from battery utmost point group 13.Described bearing/anodal exit 151 passes the top insulated ring 16 of battery utmost point group 13 tops and is welded on the bottom of described combination cover cap 12, and in this example, this negative/anodal exit 151 passes conductive plate 128 bottoms that top insulated ring 16 is welded on described combination cover cap 12.
As shown in figure 12, outside described battery barrel 11, pass through roller groove technological forming cannelure 112.This cannelure 112 is at the battery barrel 11 inner flanges that compress top insulated ring 16 that form.The open end of described battery barrel 11 above cannelure 112 forms first annular wall 111.
As shown in figure 13, bracing frame 14 is packed in the middle of the described battery utmost point group 13.
As shown in figure 14, in this example, before conductive plate 128 welding of negative/anodal exit 151 and combination cover cap 12 or afterwards, can be to the 13 injection electrolyte of the battery utmost point group battery barrel 11 in.
As shown in figure 15, combination cover cap 12 is placed on flange top in the battery barrel 11.The conductive plate 128 of described combination cover cap 12 bottoms connects battery utmost point group 13 by negative/anodal exit 151.Between second annular wall 162 of first annular wall 111 of battery barrel 11 and insulating sealer 122, smear fluid sealant; Second annular wall 162 of described insulating sealer 122 is close to first annular wall 111 of described battery barrel 11, utilize external force F2 with first annular wall 111 and 162 bendings in battery barrel 11 simultaneously of second annular wall, described second annular wall 162 is adjacent on the top board 121 of combination cover cap 12, and described first annular wall 111 is adjacent on this second annular wall 162.
Above content be in conjunction with concrete preferred implementation to further describing that the present invention did, can not assert that concrete enforcement of the present invention is confined to these explanations.For the general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, can also make some simple deduction or replace, all should be considered as belonging to protection scope of the present invention.
Claims (10)
1. cylindrical cell manufacturing method that strengthens sealing may further comprise the steps:
The battery utmost point is assembled in the battery barrel of cylindrical battery;
Moulding cannelure outside described battery barrel, described battery barrel forms first annular wall at the open end of upside of the ring groove;
Combination cover cap is placed on upside of the ring groove in the battery barrel, and described combination cover cap connects battery utmost point group, comprises insulating sealer, and this insulating sealer has second annular wall;
Utilize external force with first annular wall and the inwardly bending simultaneously of second annular wall, described second annular wall is adjacent on combination cover cap, and described first annular wall is adjacent on second annular wall.
2. the cylindrical cell manufacturing method of enhancing sealing according to claim 1, it is characterized in that: before the battery utmost point is assembled into battery barrel, at described battery barrel bottom installing insulated ring, just drawing downwards/the negative pole exit from battery utmost point group, just described/negative pole exit is walked around insulated ring and is contacted with the bottom of battery barrel.
3. the cylindrical cell manufacturing method of enhancing sealing according to claim 2, it is characterized in that: described battery utmost point group top installing insulated ring, upwards draw negative/anodal exit from battery utmost point group, described bearing/anodal exit passes the insulated ring of battery utmost point group top and is welded on the bottom of described combination cover cap.
4. the cylindrical cell manufacturing method of enhancing sealing according to claim 3 is characterized in that: bracing frame is packed in the middle of the described battery utmost point group.
5. according to the cylindrical cell manufacturing method of claim 2 or 3 described enhancing sealings, it is characterized in that: the battery utmost point group in battery barrel is injected electrolyte.
6. according to the cylindrical cell manufacturing method of any described enhancing sealing of claim 1-4; it is characterized in that: described combination cover cap comprises the top board of pressure protective device, thermistor and the conduction of the conductive plate that connects battery utmost point group, conduction, and the conductive plate that described combination cover cap superposes successively, pressure protective device, thermistor and top board are combined from fastening on every side by insulating sealer.
7. the cylindrical cell manufacturing method of enhancing sealing according to claim 6; it is characterized in that: described insulating sealer is cylindric, and its inside is provided with and is used for clamping from both sides up and down first positioning table and second positioning table of top board, thermistor, pressure protective device.
8. the cylindrical cell manufacturing method of enhancing sealing according to claim 7 is characterized in that: described insulating sealer is provided with below second positioning table and is used for the ring of accommodating of fence conductive plate.
9. the cylindrical cell manufacturing method of enhancing sealing according to claim 8, it is characterized in that: described second annular wall is formed on the first positioning table top of described insulating sealer, after combination cover cap places, between second annular wall of first annular wall and insulating sealer, smear fluid sealant.
10. the cylindrical cell manufacturing method of enhancing sealing according to claim 9; it is characterized in that: described pressure protective device comprises elastic portion of welding conductive plate and the connecting portion that extends from elastic portion, and described elastic portion and connecting portion junction offer the protection breach.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101083833A CN101931094A (en) | 2009-06-23 | 2009-06-23 | Manufacturing method of cylindrical battery with enhanced airtightness |
| PCT/CN2010/072646 WO2010148800A1 (en) | 2009-06-23 | 2010-05-12 | Battery assembled cap, cylindrical battery with the cap and method for making the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101083833A CN101931094A (en) | 2009-06-23 | 2009-06-23 | Manufacturing method of cylindrical battery with enhanced airtightness |
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| Publication Number | Publication Date |
|---|---|
| CN101931094A true CN101931094A (en) | 2010-12-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101083833A Pending CN101931094A (en) | 2009-06-23 | 2009-06-23 | Manufacturing method of cylindrical battery with enhanced airtightness |
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| CN (1) | CN101931094A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900452A (en) * | 2020-06-24 | 2020-11-06 | 湖南科霸汽车动力电池有限责任公司 | Vertical sealed cylindrical battery and preparation method thereof |
| CN114628854A (en) * | 2022-03-28 | 2022-06-14 | 远景动力技术(江苏)有限公司 | Cylindrical battery and method for manufacturing the same |
| CN116031466A (en) * | 2023-03-30 | 2023-04-28 | 深圳市誉辰智能装备股份有限公司 | Method for manufacturing cylindrical battery |
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| CN2411578Y (en) * | 2000-03-23 | 2000-12-20 | 信息产业部电子第十八研究所 | Explosion-proof cover for cylindrical lithium ion accumulator |
| JP2002048241A (en) * | 2000-08-03 | 2002-02-15 | Seiko Instruments Inc | Gasket |
| CN1992377A (en) * | 2005-12-29 | 2007-07-04 | 三星Sdi株式会社 | A lithium secondary battery |
| CN101188276A (en) * | 2006-11-16 | 2008-05-28 | 深圳市比克电池有限公司 | Battery |
| CN101394004A (en) * | 2007-09-20 | 2009-03-25 | 三星Sdi株式会社 | Rechargeable battery and manufacturing method thereof |
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| CN2411578Y (en) * | 2000-03-23 | 2000-12-20 | 信息产业部电子第十八研究所 | Explosion-proof cover for cylindrical lithium ion accumulator |
| JP2002048241A (en) * | 2000-08-03 | 2002-02-15 | Seiko Instruments Inc | Gasket |
| CN1992377A (en) * | 2005-12-29 | 2007-07-04 | 三星Sdi株式会社 | A lithium secondary battery |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111900452A (en) * | 2020-06-24 | 2020-11-06 | 湖南科霸汽车动力电池有限责任公司 | Vertical sealed cylindrical battery and preparation method thereof |
| CN111900452B (en) * | 2020-06-24 | 2022-05-10 | 先进储能材料国家工程研究中心有限责任公司 | Vertical sealed cylindrical battery and preparation method thereof |
| CN114628854A (en) * | 2022-03-28 | 2022-06-14 | 远景动力技术(江苏)有限公司 | Cylindrical battery and method for manufacturing the same |
| CN114628854B (en) * | 2022-03-28 | 2024-01-30 | 远景动力技术(江苏)有限公司 | Cylindrical battery and method for manufacturing the same |
| CN116031466A (en) * | 2023-03-30 | 2023-04-28 | 深圳市誉辰智能装备股份有限公司 | Method for manufacturing cylindrical battery |
| CN116031466B (en) * | 2023-03-30 | 2023-07-04 | 深圳市誉辰智能装备股份有限公司 | Method for manufacturing cylindrical battery |
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Application publication date: 20101229 |