CN105080924A - Foreign matter removal device in battery winding process of secondary battery winding system - Google Patents
Foreign matter removal device in battery winding process of secondary battery winding system Download PDFInfo
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- CN105080924A CN105080924A CN201410212718.7A CN201410212718A CN105080924A CN 105080924 A CN105080924 A CN 105080924A CN 201410212718 A CN201410212718 A CN 201410212718A CN 105080924 A CN105080924 A CN 105080924A
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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
Abstract
The invention provides a foreign matter removal device in a battery winding process of a secondary battery winding system. A winding portion for winding electrode portions is arranged on an electrode winding portion. After the winding portion finishes the winding process, the position, adjacent to the position cut by a cutting portion, of a separation film of the electrode portion is provided with a dust suction unit. The surface of the dust suction unit is provided with suction holes. The suction holes are used for sucking and discharging ceramic powder raised when the cutting portion cuts the electrode portion and foreign matter generated in the batter roll winding process, and a passage portion connected with the suction holes is arranged in the dust suction unit and provided with a suction pipe connected with an external suction device. When battery rolls (gel rolls) are manufactured, and the separation film is cut, coating matter flying around the surfaces of an electrode and the separation film can be removed, the upper portion of a center shaft of the winding portion is provided with the suction unit capable of sucking the flying coating matter and discharging the flying coating matter out of the system to prevent the coating matter disengaged from the electrode and the separation film from accumulating in the system.
Description
Technical field
The present invention relates to and to be undertaken in the secondary cell winding process reeled for removing the device of foreign matter produced in the process of winding battery volume by specific length cutting electrode and diffusion barrier, in more detail, relate to a kind of in order to prevent foreign matter from dispersing in the process of the process and cutting and separating film that roll out electrode and diffusion barrier and be deposited in device can suck and externally discharge disperse foreign matter secondary cell reel system battery winding winding process in foreign matter removal device.
Background technology
In general, although lithium ion battery has lot of advantages compared with other batteries, because the reactivity of lithium is excessive, be difficult to solve stability problem, thus fail conventionalization, and recently just starting by commonly using.
The advantage of lithium ion battery is as follows: the first, and because lithium metal is all lighter than other arbitrary metals, thus energy density is very large; The second, electromotive force is large; 3rd, owing to there is no storage effect (memoryeffect: before charge, the character that battery should be discharged completely), also can charge thus be in the state of charging to a certain degree not discharging completely under; 4th, the power consumption that self discharge causes is considerably less.
Owing to there is the lithium rechargeable battery of these advantages by comparatively promptly carrying out intercalation (intercalation) reaction of the lithium ion of the charging reaction of negative electrode, can charge rapidly, and exist with the state of lithium ion, because of but there is the high-voltage battery of stability, charging capacity large and can realize miniaturized in consider, be mainly used in the portable electric appts such as mobile phone or notebook computer, recently, for the battery of electric motor car.
Lithium rechargeable battery for the battery of electric motor car manufactures anode and negative electrode in mode anode, cathode active material being coated on metal forming (aluminium foil (Alfoil) or Copper Foil (Cufoil)), make and make jelly-roll (JELLYROLL) so that diffusion barrier (separator) is put into the mode of carrying out reeling between two electrodes, the jelly-roll made is inserted in cylindrical shape or angled metal container, with filling electrolyte (electrolyte) and the mode of carrying out sealing complete.
Like this, the production process of lithium rechargeable battery can be divided into electrode manufacturing process and assembling procedure, at this, electrode manufacturing process can divide into stirring, coating, dry and crimping cutting (cutting), and assembling procedure can be divided into the insertion of winding, jelly-roll, the injection of electrolyte and enclose operation.
The characteristic of lithium rechargeable battery is according to the state of anode and negative electrode, stacked and method for winding and different, and the applicant once logs in Application Publication 10-1359430 by Korea S and apply for that the mode of the above-mentioned electrode made with winding in assembling procedure as above made jelly-roll manufacturing system and the jelly-roll preparation method of jelly-roll.
Like this, as described in jelly-roll manufacturing system, in the system of electrode winding process comprising secondary cell, cutting blade is utilized to come cutting electrode and diffusion barrier by spooling length.
At this, the surface of electrode and diffusion barrier by ceramic coating, when the impact of above-mentioned cutting blade is coated with the diffusion barrier of pottery and cuts, ceramic powder of kicking up.
Being described as follows specifically that this is carried out: in the winding process of battery winding (jelly-roll), first time is by the length supply electrode of regulation, supply diffusion barrier afterwards and complete jelly-roll, and in the cutting process of diffusion barrier, the coating and the foreign matter that are attached to electrode can disperse, and, as mentioned above, when cutting and separating film, ceramic powder of kicking up, thus, when repeatedly carrying out cutting process, a large amount of ceramic powders can be deposited in periphery machine, mechanism part.
Especially, due to the structure of the up-coiler of jelly-roll that drops into positive plate and minus plate and the mode dropping into diffusion barrier reels, be difficult to arrange support after diffusion barrier, thus spatially, along with blade is with the mode cutting and separating film of impact, the foreign matter being attached to adjacent pole plate except the ceramic powder of diffusion barrier and ceramic powder also likely more seriously disperse.
Therefore, the action of machine is broken down, and often needs dismounting appropriate section and clean, thus becomes the factor reducing productivity ratio.
Summary of the invention
Main purpose of the present invention is the foreign matter removal device provided in a kind of battery winding winding process of secondary cell reel system, it is being coated with the extra materials such as the pottery electrode of secondary cell and the mode of diffusion barrier with coiling surface make in the secondary cell manufacturing system of battery winding, can remove the application substance departed from from electrode and diffusion barrier in the diffusion barrier cutting process outside the foreign matter that produces in the final winding process of battery winding.
The foreign matter removal device provided in a kind of battery winding winding process of secondary cell reel system is provided, be cut and the electrode that supplies when winding diffusion barrier with by the length of regulation, when making battery winding (jelly-roll), remove the foreign matter dispersed in winding process, especially, when carrying out cutting operation to diffusion barrier, the application substance when application substance can removing the surface of electrode and diffusion barrier disperses, arrange on the top of the axis of centres of winder and can suck the application substance that disperses and the suction unit of discharging to the outside of system, prevent from system, pile up the application substance departed from from electrode and diffusion barrier.
To achieve these goals, the invention provides the foreign matter removal device in a kind of battery winding winding process of secondary cell reel system,
Above-mentioned secondary cell reel system comprises:
Electrode winder, the electrode section be made up of diffusion barrier and the positive electrode be cut by the length of regulation, negative electrode for reeling by the length of regulation is to make battery winding and to discharge;
Cutting part, for the electrode section reeled by electrode winder by regulation unit cutting and separating film;
Wherein above-mentioned electrode winder is provided with the winder for rolled electrode portion, after the winding process of winder terminates, the adjacent position of the position of the diffusion barrier portion of the being cut cutting of electrode section is provided with powder and sucks unit, the surface of above-mentioned powder suction unit is provided with inlet hole, above-mentioned inlet hole is for sucking and externally discharging the foreign matter produced in by the ceramic powder kicked up during cutting part cutting electrode portion and the winding process at battery winding, the inside sucking unit at above-mentioned powder is provided with the passage portion be connected with inlet hole, passage portion is provided with the suction line for connecting outside suction apparatus.
A foreign matter removal device in the battery winding winding process of secondary cell reel system,
Above-mentioned secondary cell reel system comprises:
Electrode winder, for making battery winding by the length rolled electrode portion of regulation and discharge;
Cutting part, for the electrode section cutting and separating film reeled by electrode winder, comes to form battery winding by the length of regulation;
Wherein in above-mentioned electrode winder, winder sucks centered by unit by powder and arranges, above-mentioned winder is with the electrode section of scroll state winding from the supply of electrode constituting portion, and powder sucks unit and sucks and externally discharge the ceramic powder kicked up when diffusion barrier by cutting part cutting electrode portion and the foreign matter produced when battery winding is wound in winder;
Above-mentioned powder sucks unit and is made up of the axle being arranged at swivel plate, above-mentioned powder sucks unit and rotates along with swivel plate and rotate, move the position of winder, at the exterior face of above-mentioned powder suction unit, the inlet hole for the ceramic powder and foreign matter sucking periphery is set, the inside sucking unit at above-mentioned powder is provided with the passage portion be connected with inlet hole, and passage portion is provided with the suction line for connecting outside suction apparatus.
The outer surface sucking unit at above-mentioned powder is provided with electrode guiding piece, and along with winder moves, the mode that electrode section can contact with the surface not sucking unit with powder moves.
Above-mentioned powder sucks the shift position of inlet hole along electrode section of unit, and the surface of above-mentioned powder suction unit is formed by a plurality of holes along direction of principal axis in the mode of row.
The top sucking unit at above-mentioned powder is provided with winding guide portion, above-mentioned winding guide portion can be inserted for winder and rotate, along with swivel plate rotates, above-mentioned winding guide portion makes winder move, above-mentioned powder sucks unit and comprises winding fixed cell, when winder rotates, above-mentioned winding fixed cell fixing wound guide portion, above-mentioned swivel plate is provided with the winder gateway that winder is come in and gone out, above-mentioned winder is by being come in and gone out by above-mentioned winder gateway and being formed with the structure that the mode of the winding guide portion of the upper end setting being inserted in powder suction unit rotates,
Above-mentioned winding fixed cell can move up and down while fixing wound guide portion, winder is rotated, carries out the winding of electrode section thus, can remove the fixing of winding guide portion, make winding guide portion in rotary moving by the rotation of swivel plate.
After adopting such scheme, according to the above-mentioned design of the present invention, can suck and externally discharge the foreign matter produced in battery winding winding process, especially, when cutting and separating film, the ceramic coating material being attached to electrode and the application substance departed from from diffusion barrier, thus can solve the problem that the ceramic powder as the application substance of electrode and diffusion barrier causes, can boost productivity, and be conducive to the maintenance and repair of equipment.
Accompanying drawing explanation
Fig. 1 is the structural perspective of the foreign matter removal device in the battery winding winding process of secondary cell reel system of the present invention;
Fig. 2 is structure sectional view of the present invention;
Fig. 3 represents the state diagram of electrode roll around backward second place movement;
Fig. 4 represents the cutting process figure of diffusion barrier;
Fig. 5 is the discharge state diagram of the battery winding after diffusion barrier is cut.
Detailed description of the invention
Referring to figs. 1 through the embodiment shown in Fig. 5, that carries out the structure of the foreign matter removal device in the battery winding winding process of secondary cell reel system of the present invention and effect is described as follows.
To receive by the cut positive electrode of the length of regulation, negative electrode, to reel together with diffusion barrier by the length of regulation and the battery winding coiler device that the mode of cutting and separating film makes battery winding comprises: electrode constituting portion, form and receive the cut positive electrode of the above-mentioned length by regulation, negative electrode and diffusion barrier stacked electrode section 300, supply to electrode winder 100, electrode winder 100, the electrode section 300 of self-electrode constituting portion is carried out to make battery winding and to discharge for the length winding by regulation, and cutting part 200, for cutting and separating film, carry out the electrode section 300 reeled by electrode winder 100 by the unit winding of regulation, above-mentioned electrode winder 100 comprises: winder 110, with the electrode section 300 of scroll state winding from the supply of electrode constituting portion, powder sucks unit 120, for suck and externally discharge the winding process of battery winding and by cutting part 200 at electrode section 300 cutting and separating film time the ceramic powder kicked up and other foreign matters.
Technical characteristic of the present invention is, form powder and suck unit, prevent ceramic powder in cutting action from dispersing and drop in device, above-mentioned powder sucks unit for sucking process in rolled electrode portion and the ceramic coating powder dispersed during cutting and separating film in the process in rolled electrode portion and other foreign matters.
Above-mentioned electrode winder 100 comprises winder 110 and powder sucks unit 120, and can position along the outer surface of above-mentioned powder suction unit 120 centered by above-mentioned powder suction unit 120.
The axle that above-mentioned powder sucks the swivel plate 410 that unit 120 is arranged by the top being arranged at support panel 400 is formed, above-mentioned powder sucks unit 120 and rotates along with swivel plate 410 and rotate, the exterior face setting of unit 120 is sucked for sucking the inlet hole 121 of the ceramic powder of periphery at above-mentioned powder, the inside sucking unit 120 at above-mentioned powder arranges the passage portion 122 be connected with inlet hole 121, arranges the suction line 123 for connecting outside suction apparatus in passage portion 122.
And, the upper end sucking unit 120 at above-mentioned powder arranges winding guide portion 124, above-mentioned winding guide portion 124 can be inserted for winder 110 and rotate, along with swivel plate 410 rotates, above-mentioned winding guide portion 124 makes winder 110 move, above-mentioned powder sucks unit 120 and comprises winding fixed cell 125, when winder 110 rotates, and above-mentioned winding fixed cell 125 fixing wound guide portion 124.
Further, the outer surface sucking unit 120 at above-mentioned powder arranges electrode guiding piece 126, and along with winder 110 moves, the mode that electrode section 300 can contact with the surface not sucking unit 120 with powder moves.
Above-mentioned swivel plate 410 arranges the winder gateway 411 that winder 110 is come in and gone out, and above-mentioned winder 110 is by being come in and gone out by above-mentioned winder gateway 411 and being formed with the structure that the mode of the winding guide portion 124 of the upper end setting being inserted in powder suction unit 120 rotates.
Further, above-mentioned powder sucks the shift position of inlet hole 121 along electrode section 300 of unit 120, the surface of above-mentioned powder suction unit 120 is formed by a plurality of holes along direction of principal axis, arranges above-mentioned electrode guiding piece 126 in the side of this some holes.
When above-mentioned electrode guiding piece 126 moves after electrode section 300 is reeled by winder 110, the electrode section 300 that diffusion barrier is not yet cut moves and is positioned at powder and sucks unit 120, and now for the unit in support electrode portion 300.
Above-mentioned winding fixed cell 125 is for can move up and down while fixing wound guide portion 124, winder 110 is rotated, carry out the winding of electrode section 300 thus, the fixing of winding guide portion 124 can be removed, by the unit that the rotation of swivel plate 410 makes winding guide portion 124 in rotary moving, above-mentioned winding fixed cell 125 is made up of winding fixed part 125a and the motor 125b for making winding fixed part 125a work.
Above-mentioned cutting part 200 is move to the direction of electrode winder 100, and makes cutter work carry out the diffusion barrier in cutting electrode portion 300, completes the unit of the length of electrode section 300 thus.
As mentioned above, above-mentioned electrode section 300, as the general designation of stacked positive electrode, diffusion barrier and negative electrode, by terminating winding in the mode of cutting and separating film, terminates the winding of battery winding (jelly-roll).
The action of the electrode application substance removal device in the electrode cutting process of the secondary cell reel system of the present invention formed by this structure is described as follows.
In the secondary battery, supply anode, negative electrode and their diffusion barrier (seperate) from each device to electrode constituting portion, in electrode constituting portion, make these three junctions with the order of anode, diffusion barrier and negative electrode and assemble, form electrode section 300 thus, and supply to winder 110.
Now, to anode, negative electrode that the supply of electrode constituting portion is cut by the length of specifying, only there is diffusion barrier with the supply of not cut state.That is, diffusion barrier is cut in winding process.
In more detail, electrode section 300 is stuck in winder 110, and be wound along with the rotation of winder 110, the length of specifying if be wound into, the guide portion 124 that then reels, while rotate, moves to the second place, thus, as shown in Figure 3, electrode section 300 from electrode constituting portion along with winding guide portion 124 move together.
Further, current with winder 110 from the state of the electrode section 300 that reeled to second place movement before winder 110 under the state being positioned at winder gateway 411 along with the movement of swivel plate 411, move to the primary importance as winding position.
Afterwards, as shown in Figure 4, while derive winder 110 from above-mentioned winder gateway 411, to insert and fixed electrode portion 300, winder 110 can rotate to suck with above-mentioned powder the mode combined in the winding guide portion 124 on the top of unit 120 thus.
Further, utilize winding fixed cell 125 to fix the position that above-mentioned powder sucks the winding guide portion 124 on unit 120 top, make above-mentioned winder 110 to combine with winding guide portion 124 and stably to rotate.
Now, as shown in Figure 4, the second shift end in winder 110 is cut with the electrode section 300 of mode as above along with winding guide portion 124 together movement.
More accurately, the diffusion barrier in cutting electrode portion 300.
As mentioned above, if electrode section 300 is cut, the winder 110 being then positioned at primary importance rotates, and rolled electrode portion 300 in the manner, if winding process terminates, then above-mentioned winding fixed cell 125 removes the fixing of winding guide portion 124, makes winding guide portion 124 rotate along with swivel plate 410 and rotate, makes winder 110 move thus.
Afterwards, as mentioned above, winder 110 moves to the second place, and the winder 110 being positioned at the second place moves to the 3rd position.
When moving from the second place to the 3rd position, winder 110 rotates and moves, and the cut but part of the electrode section 300 be not yet wound is wound completely, thus completes complete battery winding.
As shown in Figure 5, if move to the 3rd position, then when support portion 500 support cells is rolled up, above-mentioned winder 110 departs from while enter in winder gateway 411 from battery winding, and the battery winding of having been discharged to device outside by support portion 500.
Afterwards, repeatedly carry out process as above, carried out battery winding.
As shown in Figure 2, in inlet hole 121, suction is applied by the suction line 123 be connected with outside suction apparatus, the ceramic powder making the foreign matter that produces in the winding process of battery winding and disperse when diffusion barrier by cutting part 200 cutting electrode portion 300 sucks in inlet hole 121, the internal path portion 122 sucking unit 120 by above-mentioned powder externally suction apparatus transmission discharging.
That is, along with diffusion barrier is cut, the external coated material of diffusion barrier, be attached to positive electrode, the application substance of negative electrode and scattering foreign matter, and suck the inside in inlet hole 121 in the manner.
Like this, because the cut surface of multiple inlet hole 121 along electrode section 300 is formed, thus, when cutting by cutting part 200, the suction applied by the inside from inlet hole 121 and be inhaled in inlet hole 121, prevents ceramic powder from dropping on the inside of device thus.
Claims (5)
1. the foreign matter removal device in the battery winding winding process of secondary cell reel system,
Above-mentioned secondary cell reel system comprises:
Electrode winder (100), makes battery winding for the electrode section (300) be made up of diffusion barrier and the positive electrode be cut by the length of regulation, negative electrode by the length winding of regulation and discharges;
Cutting part (200), in the electrode section (300) reeled by electrode winder (100) by the unit cutting and separating film specified;
It is characterized in that: above-mentioned electrode winder (100) is provided with the winder (110) for rolled electrode portion (300), the adjacent position that the diffusion barrier of electrode section (300) is cut the position that portion (200) cuts after the winding process of winder (100) terminates is provided with powder and sucks unit (120), the surface of above-mentioned powder suction unit (120) is provided with inlet hole (121), above-mentioned inlet hole (121) is for sucking and externally discharging the foreign matter produced in by the ceramic powder kicked up during cutting part (200) cutting electrode portion (300) and the winding process at battery winding, the inside sucking unit (120) at above-mentioned powder is provided with the passage portion (122) be connected with inlet hole (121), passage portion (122) is provided with the suction line (123) for connecting outside suction apparatus.
2. the foreign matter removal device in the battery winding winding process of secondary cell reel system,
Above-mentioned secondary cell reel system comprises:
Electrode winder (100), for making battery winding by the length rolled electrode portion (300) of regulation and discharge;
Cutting part (200), at electrode section (300) the cutting and separating film reeled by electrode winder (100), comes to form battery winding by the length of regulation;
It is characterized in that: in above-mentioned electrode winder (100), winder (110) sucks centered by unit (120) by powder and arranges, above-mentioned winder (110) is with the electrode section (300) of scroll state winding from the supply of electrode constituting portion, and powder sucks unit (120) and sucks and externally discharge the ceramic powder kicked up when diffusion barrier by cutting part (200) cutting electrode portion (300) and the foreign matter produced when battery winding is wound in winder (110);
Above-mentioned powder sucks unit (120) and is made up of the axle being arranged at swivel plate (410), above-mentioned powder sucks unit (120) and rotates along with swivel plate (410) and rotate, move the position of winder (110), at the exterior face of above-mentioned powder suction unit (120), the inlet hole (121) for the ceramic powder and foreign matter sucking periphery is set, the inside sucking unit (120) at above-mentioned powder is provided with the passage portion (122) be connected with inlet hole (121), and passage portion (122) is provided with the suction line (123) for connecting outside suction apparatus.
3. the foreign matter removal device in the battery winding winding process of secondary cell reel system according to claim 2, it is characterized in that: the outer surface sucking unit (120) at above-mentioned powder is provided with electrode guiding piece (126), along with winder (110) is mobile, the mode that electrode section (300) can contact with the surface not sucking unit (120) with powder moves.
4. the foreign matter removal device in the battery winding winding process of secondary cell reel system according to claim 2, it is characterized in that: above-mentioned powder sucks the shift position of inlet hole (121) along electrode section (300) of unit (120), the surface of above-mentioned powder suction unit (120) is formed by a plurality of holes in the mode of row along direction of principal axis.
5. the foreign matter removal device in the battery winding winding process of secondary cell reel system according to claim 2, is characterized in that:
The top sucking unit (120) at above-mentioned powder is provided with winding guide portion (124), above-mentioned winding guide portion (124) can supply winder (110) insert and rotate, along with swivel plate (410) rotates, above-mentioned winding guide portion (124) makes winder (110) mobile, above-mentioned powder sucks unit (120) and comprises winding fixed cell (125), when winder (110) rotates, above-mentioned winding fixed cell (125) fixing wound guide portion (124), above-mentioned swivel plate (410) is provided with the winder gateway (411) that winder (110) is come in and gone out, above-mentioned winder (110) is by being come in and gone out by above-mentioned winder gateway (411) and being formed with the structure that the mode of the winding guide portion (124) of the upper end being inserted in powder suction unit (120) setting rotates,
Above-mentioned winding fixed cell (125) can move up and down while fixing wound guide portion (124), winder (110) is rotated, carry out the winding of electrode section (300) thus, the fixing of winding guide portion (124) can be removed, make winding guide portion (124) in rotary moving by the rotation of swivel plate (410).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212718.7A CN105080924A (en) | 2014-05-20 | 2014-05-20 | Foreign matter removal device in battery winding process of secondary battery winding system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410212718.7A CN105080924A (en) | 2014-05-20 | 2014-05-20 | Foreign matter removal device in battery winding process of secondary battery winding system |
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| CN105080924A true CN105080924A (en) | 2015-11-25 |
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| CN201410212718.7A Pending CN105080924A (en) | 2014-05-20 | 2014-05-20 | Foreign matter removal device in battery winding process of secondary battery winding system |
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| CN107706464A (en) * | 2017-08-21 | 2018-02-16 | 科爱慕株式会社 | The one-piece type up- coiler of subsidiary lbg |
| EP3736896A4 (en) * | 2018-09-19 | 2021-06-16 | Lg Chem, Ltd. | Winding apparatus for producing electrode assembly |
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| CN107706464A (en) * | 2017-08-21 | 2018-02-16 | 科爱慕株式会社 | The one-piece type up- coiler of subsidiary lbg |
| EP3736896A4 (en) * | 2018-09-19 | 2021-06-16 | Lg Chem, Ltd. | Winding apparatus for producing electrode assembly |
| US11916182B2 (en) | 2018-09-19 | 2024-02-27 | Lg Energy Solution, Ltd. | Winding device for manufacturing electrode assembly |
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Application publication date: 20151125 |