CN105406101B - Rolling equipment and milling method for secondary cell - Google Patents
Rolling equipment and milling method for secondary cell Download PDFInfo
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- CN105406101B CN105406101B CN201510353437.8A CN201510353437A CN105406101B CN 105406101 B CN105406101 B CN 105406101B CN 201510353437 A CN201510353437 A CN 201510353437A CN 105406101 B CN105406101 B CN 105406101B
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- electrode plate
- cutter
- unit
- partition
- roller
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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
- H01M10/04—Construction or manufacture in general
- H01M10/0404—Machines for assembling batteries
- H01M10/0409—Machines for assembling batteries for cells with wound electrodes
-
- 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
- H01M10/04—Construction or manufacture in general
- H01M10/0468—Compression means for stacks of electrodes and 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
- H01M10/04—Construction or manufacture in general
- H01M10/0431—Cells with wound or folded electrodes
-
- 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
-
- 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
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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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0435—Rolling or calendering
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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
- H01M2220/00—Batteries for particular applications
- H01M2220/30—Batteries in portable systems, e.g. mobile phone, laptop
-
- 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
Abstract
Provide the rolling equipment and milling method for secondary cell.Rolling equipment includes: electrode plate roller, is configured as unwinding electrode plate around electrode plate roller rolled electrode plate and from electrode plate roller；Partition roller is configured as unwinding partition around partition roller coiled separator and from partition roller；Adhere to roller, is configured as electrode plate and partition being attached to each other；Mandrel unit, the electrode plate and partition supplied from attachment roller are wound around mandrel unit；And cutter unit, it is arranged between electrode plate roller and mandrel unit, to cut the electrode plate for being supplied to mandrel unit from electrode plate roller by slit cutting method using linear movement.
Description
Cross reference to related applications
This applies for the South Korea patent application 10-2014- for requiring September in 2014 to be delivered to Korean Intellectual Property Office on the 4th
0118023 equity, the open reference entirety that passes through are incorporated herein.
Technical field
One or more exemplary embodiments are related to device and method, specifically, being related to the rolling for secondary cell
Equipment and milling method.
Background technique
The compact and light of such as cellular phone, laptop computer and camcorder is developed and has produced recently
The electric/electronic of type.Such portable electric/electronic equipment is equipped with battery pack, to be used in external power supply not
Available place.Such battery pack includes at least one battery for exporting the voltage of a certain level, thus allows to include battery
The electric/electronic of group operates a period of time.
It has included rechargeable battery (secondary cell) in nearest battery pack due to economically.It is secondary
The example of battery includes nickel-cadmium (Ni-Cd) battery, nickel metal hydride (Ni-MH) battery and such as lithium (Li) battery and lithium
The lithium secondary battery of ion (Li-ion) battery.
Particularly, lithium secondary battery has the operating voltage of 3.6V, this is the work electricity of Ni-Cd battery or Ni-MH battery
Three times of pressure, and there is high per unit weight energy density.Therefore, the use of lithium secondary battery has increased sharply.In general,
Secondary lithium batteries lithium-containing oxides uses carbon as negative electrode active material as positive electrode active substance.In general, according to electrolysis
Matter type, secondary cell can be divided into liquid electrolyte type and polyelectrolyte type.The example of lithium secondary battery includes making
Lithium ion battery with liquid electrolyte and the lighium polymer secondary battery using polymer dielectric.Lithium secondary battery can be by
It is formed to have various shape, such as cylindrical, prismatic and pouch-shaped.
In general, lithium secondary battery include: by winding first electrode plate and second electrode plate and be disposed there between every
Plate and the electrode assembly formed, partition prevent the short circuit between first electrode plate and second electrode plate and only lithium ion are allowed to wear
It crosses；Lithium secondary battery shell for accommodate electrod component；And it is filled in lithium secondary battery shell to allow lithium ion stream
Dynamic electrolyte.
First electrode plate and second electrode plate are can be by with active material coated substrate, drying and rolling substrate and by base
Plate is cut to predetermine sizes and the positive electrode plate and negative electrode plate that are formed.The first electrode plate and second electrode formed as described above
Plate is rolled together with partition, to form electrode assembly.At this point, first electrode lug plate and second electrode lug plate are attached to
First electrode plate and second electrode plate, to extend outwardly from electrode assembly, and therefore first electrode plate and second electrode plate
Pole is exposed to outside.For example, passing through the first electrode plate that will be supplied from feed unit and the second electricity by using rolling equipment
The end of pole plate and partition is inserted into the insertion groove of mandrel, live spindle is to roll first electrode plate and second around mandrel
Electrode plate and partition can form electrode assembly.Hereafter, electrode assembly can be inserted into lithium secondary battery shell, and lithium
Secondary cell shell can be closed by cap assemblies and be provided as final products.
Summary of the invention
One or more exemplary embodiments include the rolling equipment and milling method for secondary cell.
Another aspect will propose partially in the description that follows, will be partly from description it is clear that can lead to
The practice to the embodiment of proposition is crossed to know.
According to one or more exemplary embodiments, the rolling equipment for secondary cell includes: electrode plate roller, is configured
To unwind electrode plate around electrode plate roller rolled electrode plate and from electrode plate roller；Partition roller is configured as around partition roller coiled separator
And partition is unwound from partition roller；Adhere to roller, is configured as electrode plate and partition being attached to each other；Mandrel unit, from attachment roller
The electrode plate and partition of supply are wound around mandrel unit；And cutter unit, it is arranged between electrode plate roller and mandrel unit,
To be supplied to the electricity of mandrel unit from electrode plate roller by slit cutting (slit cutting) method cutting using linear movement
Pole plate.
Cutter unit may include: linear movement unit, be configured as linear movement；And cutter, it is rotationally coupled
To linear movement unit, so as to when linear movement unit can linear movement when cutting electrode plate while rotating.
Cutter unit, which may further include, is connected to the linear movement unit so that the linear movement unit is linear
Mobile linear drive unit.
At least one of two sides of cutter can be taper.
Cutter may include: cutter on first, be rotationally coupled to linear movement unit, to work as linear movement
Unit can linear movement when cutting electrode plate while rotating first surface；With the first lower cutter, facing on first
The position of cutter is rotationally coupled to linear movement unit, so as to the second surface of cutting electrode plate, the second surface and
The first surface of electrode plate is different.
First lower cutter contacted with the second surface of electrode plate a part of can be flat.
Cutter and the first lower cutter can be staggered on first.
At least part of cutter and the first lower cutter can overlap each other on first.
When electrode plate cutter under cutter and first close on first, cutter and the first lower cutter can on first
To be rotated towards electrode plate.
Cutter unit may further include supporting element, and supporting element may include through hole, and electrode plate runs through across this
Hole.
Cutter unit may further include: the guide gear unit on supporting element is arranged in；Be fixed to cutter simultaneously
It is connected to the rotation gear unit of guide gear unit, wherein rotation gear unit can when linear movement unit can move
To be moved on guide gear unit while rotating, to rotate cutter.
Cutter may include: the rotation for being connected to rotation gear unit and being rotatably inserted into linear movement unit
Axis；And be connected to rotary shaft so as to the blade that rotates together of rotation gear unit.
Cutter may further include the cutter holder for securing the blade to rotary shaft.
Cutter may further include the pressing component towards electrode plate by pushing broach.
Cutter unit may include: linear movement unit, be configured as linear movement；Cutter is rotationally coupled to
Linear movement unit, so as to the first surface of cutting electrode plate while rotating when linear movement unit linear movement；With
Linear cutter faces cutter, and so as to the second surface of cutting electrode plate, the first surface of the second surface and electrode plate is not
Together.
According to one or more exemplary embodiments, a kind of milling method for secondary cell includes: from first electrode
Plate roller unwinds first electrode plate and unwinds first partition from first partition roller；First electrode plate is pressed by using the first attachment roller
First partition is attached to first electrode plate with first partition；First electrode plate, first partition are wound by using mandrel unit
It is attached to first electrode plate；And if mandrel unit stops, first electrode plate is cut by slit cutting method.
First electrode plate and first partition can be wound into fruit jelly roll by mandrel unit.
Milling method, which may further include, to be passed through: by from second electrode plate roller unwind second electrode plate and from second every
Second electrode plate and second partition are simultaneously supplied to mandrel unit by plate roller unwinding second partition, wind second electrode around mandrel unit
Plate and second partition.
First electrode plate, first partition, second electrode plate and second partition can be sequentially stacked.
Milling method, which may further include, cuts second electrode plate by slit cutting method when mandrel unit stops.
Detailed description of the invention
From to the description of exemplary embodiment, these and or other aspects will be apparent and be easier to reference to the accompanying drawing
In understanding, attached drawing:
Fig. 1 is to show the schematic diagram of the rolling equipment for secondary cell according to an exemplary embodiment；
Fig. 2 is the schematic diagram of cutter unit shown in Fig. 1 for showing according to an exemplary embodiment；
Fig. 3 is the cross-sectional view intercepted along the line III-III of Fig. 2；
Fig. 4 is to show the schematic diagram of the electrode assembly rolled with mandrel unit shown in FIG. 1；
Fig. 5 is the schematic diagram of cutter unit shown in Fig. 1 for showing according to another exemplary embodiment；With
Fig. 6 is the cross-sectional view intercepted along the line VI-VI of Fig. 5.
Specific embodiment
It will be detailed with reference to that its exemplary embodiment is shown in the attached drawings, wherein throughout identical appended drawing reference
Refer to identical element.In this respect, the present embodiment can have different forms, should not be construed as limited to mention herein
Description out.Therefore, the various aspects of this description are explained solely by reference to figure description embodiment below.As used herein, term
"and/or" includes any and all combinations of one or more associated listed items.It is all when before being placed on a column element
If permutation element is modified in the statement of at least one of " ... ", rather than modify the individual component in the column.In description below
In, technical term is only used for explaining exemplary embodiment, rather than for purposes of limitation.Unless otherwise noted, singular
Term may include plural form.The meaning of " include " and or " include " specifies element, step, process, operates and/or set
It is standby, but other elements, step, process, operation and/or equipment is not precluded.It will be understood that although term first and second is herein
In be used to describe various elements, but these elements should not be limited by these terms.Term is only used for distinguishing an element
With other elements.
Fig. 1 is to show the schematic diagram of the rolling equipment 10 for secondary cell according to an exemplary embodiment.Fig. 2
It is to show the schematic diagram of the first cutter unit 100a shown in Fig. 1.Fig. 3 is the section view intercepted along the line III-III of Fig. 2
Figure.Fig. 4 is to show the schematic diagram of the electrode assembly 1 rolled with mandrel unit 600 shown in FIG. 1.
Referring to figs. 1 to Fig. 4, the rolling equipment 10 for secondary cell may include: electrode plate roller 200 and 300, for around
The rolled electrode of electrode plate roller 200 and 300 plate 2 and 4 simultaneously unwinds electrode plate 2 and 4 from electrode plate roller 200 and 300；And partition roller
400 and 500, for unwinding partition 3 around the coiled separator of partition roller 400 and 500 3 and from partition roller 400 and 500.
Electrode plate roller 200 and 300 can include: first electrode plate roller 200, for around the winding of first electrode plate roller 200 first
Electrode plate 2 simultaneously unwinds first electrode plate 2 from first electrode plate roller 200；And second electrode plate roller 300, for around second electrode
Plate roller 300 winds second electrode plate 4 and unwinds second electrode plate 4 from second electrode plate roller 300.
Partition roller 400 and 500 may include: first partition roller 400, for winding first partition around first partition roller 400
3a simultaneously unwinds first partition 3a from first partition roller 400；And second partition roller 500, for around the winding of second partition roller 500 the
Two partition 3b simultaneously unwind second partition 3b from second partition roller 500.
Rolling equipment 10 may include for collect and adhere to from electrode plate roller 200 and 300 unwind electrode plate 2 and 4 with
And the attachment roller 700 and 800 of the partition 3 unwound from partition roller 400 and 500.Attachment roller 700 and 800 can be provided in pairs, each packet
It includes for pressing two rollers facing with each other with adhesive electrodes plate 2 and 4 and partition 3.
For example, attachment roller 700 and 800 can include: for collecting first electrode plate 2 and first partition 3a and by first electrode
The first attachment roller 700 that plate 2 and first partition 3a are attached together；And for collecting second electrode plate 4 and second partition 3b
And the second attachment roller 800 for being attached together second electrode plate 4 and second partition 3b.
In addition, rolling equipment 10 may include being arranged on from first electrode plate 2, first partition 3a, second electrode plate 4 and
Tension on the path of at least one selected in two partition 3b maintains roller 900, for maintain from first electrode plate 2, first every
At least one the above-mentioned tension selected in plate 3a, second electrode plate 4 and second partition 3b.It can provide multiple tension and maintain roller
900.That is, at least one tension maintains roller 900 to may be disposed at from first electrode plate 2, first partition 3a, second electrode
On the path of at least one selected in plate 4 and second partition 3b.
Rolling equipment 10 may include mandrel unit 600, for passing through winding first electrode plate 2, first partition 3a, the second electricity
Pole plate 4 and second partition 3b form electrode assembly 1.Mandrel unit 600 can form the electrode assembly 1 of fruit jelly roll.
In addition, rolling equipment 10 may include cutter unit 100, for supplying when electrode plate 2 and 4 from electrode plate roller 200 and 300
By slit cutting method cutting electrode plate 2 and 4 when being given to mandrel 600.One or more cutter units 100 can be provided.In detail
Carefully, cutter unit 100 may include the first cutter unit being arranged between first electrode plate roller 200 and mandrel unit 600
100a, for cutting first electrode plate 2 when first electrode plate 2 is fed into mandrel unit 600 from first electrode plate roller 200.
In addition, cutter unit 100 may include the second cutter unit being arranged between second electrode plate roller 300 and mandrel unit 600
100b, for cutting second electrode plate 4 when second electrode plate 4 is fed into mandrel unit 600 from second electrode plate roller 300.
First cutter unit 100a and the second cutter unit 100b can have identical structure or similar structure.Below
In description, in order to describe simplicity, the first cutter unit 100a will mainly be described in detail.
In detail, the first cutter unit 100a may include the first linear moving cell 110a.In addition, the first cutter unit
100a may include the first cutter 120a being rotatably installed on the first linear moving cell 110a, for working as First Line
First electrode plate 2 is cut while rotating when property moving cell 110a linear movement.First cutter 120a may include setting
Set cutter on the first of the first surface 2a for being used to cut first electrode plate 2 above the first surface 2a of first electrode plate 2
120a-1.In addition, the first cutter 120a may include below the second surface 2b that first electrode plate 2 is arranged in for cutting first
The lower cutter 120a-2 of the first of the second surface 2b of electrode plate 2.
At least one selected in the lower cutter 120a-2 of cutter 120a-1 and first from first and first electrode
A part that plate 2 contacts can be taper.For example, on first cutter 120a-1 a part contacted with first electrode plate 2
Can be taper, and the first lower cutter 120a-2 contacted with first electrode plate 2 a part of can be flat.With this
On the contrary, on first cutter 120a-1 contacted with first electrode plate 2 it is a part of can be flat, the first lower cutter
The a part of 120a-2 contacted with first electrode plate 2 can be taper.In addition, cutter 120a-1 and the first incision on first
Cutter 120a-2 can be taper with two parts of the contact of first electrode plate 2.However, for the ease of illustrating, it will be
On first a part of cutter 120a-1 contacted with first electrode plate 2 be taper and the first lower cutter 120a-2 with
A part that first electrode plate 2 contacts is flat under hypothesis and introduces following description.
As described above, at least one of the two sides of cutter 120a-1 can be taper on first.In detail, on first
The edge of cutter 120a-1 contacted with first electrode plate 2 can be inclined.
The lower cutter 120a-2 of cutter 120a-1 and first can be staggered on first.In detail, it cuts on first
The lower cutter 120a-2 of device 120a-1 and first can be arranged along the length direction of first electrode plate 2 in different location.This
In the case of, the surface of cutter 120a-1 can separate certain length with the surface of the first lower cutter 120a-2 on first.
At least part of the lower cutter 120a-2 of cutter 120a-1 and first can overlap each other on first.For example,
When the lower cutter 120a-2 of cutter 120a-1 and first has circular shape on first, on first in cutter 120a-1
The distance between center of the heart and the first lower cutter 120a-2 can less than first on cutter 120a-1 radius and first
The sum of the radius of lower cutter 120a-2.
In addition, the first cutter unit 100a may include being connected to the first linear moving cell 110a for linear movement
The first linear drive unit 130a of first linear moving cell 110a.First linear drive unit 130a may include being connected
To the motor and gear assembly of the first linear moving cell 110a.In a further exemplary embodiment, the first linear drive unit
130a may include the cylinder for being connected to the first linear moving cell 110a.It for clarity, will be in the first Linear Driving
Unit 130a include cylinder hypothesis under introduce following description.
First cutter unit 100a may include that the first supporting element 140a, the first through hole 141a is formed through first
Supporting element 140a allows first electrode plate 2 to pass through the first through hole 141a.First supporting element 140a can be fixed to outside
Structure.
First cutter unit 100a may include: the first guide gear unit being arranged on the first supporting element 140a
150a；First rotation gear unit 160a is fixed to the lower cutter 120a-2 of cutter 120a-1 or first on first and quilt
It is connected to the first guide gear unit 150a, thus when the first linear moving cell 110a is mobile along the first guide gear list
First 150a makes the lower cutter 120a-2 rotation of cutter 120a-1 or first on first while rotation.
First guide gear unit 150a may include rack gear, and the first rotation gear unit 160a may include pinion gear.
However, the rotation of the first guide gear unit 150a and first gear unit 160a is without being limited thereto.That is, the first guide gear
The rotation of unit 150a and first gear unit 160a can be made of any gear combination, as long as the first guide gear unit 150a
The linear movement of the first linear moving cell 110a can be converted into rotary motion with the first rotation gear unit 160a.
First guide gear unit 150a may include: that the movement routine of the cutter 120a-1 along first is arranged on
On one supporting element 140a first on guide gear unit 150a-1；And the movement routine quilt along the first lower cutter 120a-2
Guide gear unit 150a-2 first on first supporting element 140a Xia is set.
In addition, the first rotation gear unit 160a may include: to be configured as the guide gear unit 150a-1 on first
Gear unit 160a-1 is rotated on the first of upper movement；And it is configured as moving on guide gear unit 150a-2 under first
The first backspin rotating disk unit 160a-2.In this case, the first cutter 120a may include being connected to the first rotation
Gear unit 160a is simultaneously rotatably inserted into the first rotary shaft 121a-1 and 121a- in the first linear moving cell 110a
2.In addition, the first cutter 120a may include being connected to the first rotary shaft 121a-1 and 121a-2 and rotating gear list with first
The first blade 122a-1 and 122a-2 that first 160a rotates together.
First cutter 120a may include by the first blade 122a-1 and 122a-2 be fixed to the first rotary shaft 121a-1 and
The first cutter holder 123a-1 and 123a-2 of 121a-2.In addition, the first cutter 120a may include pushing the first blade
122a-1 and 122a-2 is pressed against the first pressing component 124a-1 and 124a-2 of first electrode plate 2.First pressing component 124a-1
It may include such as elastomeric element of compressed spring, rubber or silicone resin with 124a-2.
In detail, cutter 120a-1 may include: to be connected to rotation gear unit 160a-1 on first on first
First rotary shaft (rotary shaft on first) 121a-1；And it is connected to rotary shaft 121a-1 on first and is configured to and first
The first blade (the first cutter) 122a-1 that upper rotation gear unit 160a-1 rotates together.Rotary shaft 121a-1 can on first
To be rotationally coupled to first by the way that the bearing on first between rotary shaft 121a-1 and the first supporting element 140a is arranged in
Support member 140a.
In addition, on first cutter 120a-1 may include on at least side for be arranged on the first cutter 122a-1 simultaneously
Receive the first cutter holder (cutter holder on first) 123a-1 of rotary shaft 121a-1 on first.Cutter on first
120a-1 may include the first pressing component being arranged on first between rotary shaft 121a-1 and the first cutter 122a-1
(pressing component on first) 124a-1, to push the first cutter 122a-1 to be pressed against the first surface 2a of first electrode plate 2.
First lower cutter 120a-2 can include: be connected to the first rotary shaft of the first backspin rotating disk unit 160a-2
(the first Shaft) 121a-2；And it is connected to the first Shaft 121a-2 and is configured to and the first backspin rotating disk
The first blade (the first bottom knife) 122a-2 that unit 160a-2 rotates together.The thickness of first bottom knife 122a-2 can be with
The thickness of one cutter 122a-1 is different.In detail, the thickness of the first bottom knife 122a-2 can be greater than the first cutter 122a-
1 thickness.
In addition, the first lower cutter 120a-2 may include on at least side for be arranged on the first bottom knife 122a-2 simultaneously
Receive the first cutter holder (the first lower cutter holder) 123a-2 of the first Shaft 121a-2.First lower cutter
120a-2 may include the first pressing component being arranged between the first Shaft 121a-2 and the first bottom knife 122a-2
(the first lower pressing component) 124a-2, to push the first bottom knife 122a-2 to be pressed against the second surface 2b of first electrode plate 2.
It may include that the second linear movement unit (does not show similar to the first cutter unit 100a, the second cutter unit 100b
Out), the second cutter (not shown), the second linear drive unit (not shown), the second supporting element (not shown), the second guiding tooth
Take turns unit (not shown) and the second rotation gear unit (not shown).Due to the second linear movement unit, the second cutter, second
Linear drive unit, the second supporting element, the second guide gear unit and the second rotation gear unit and the first linear moving cell
110a, the first cutter 120a, the first linear drive unit 130a, the first supporting element 140a, the first guide gear unit 150a
Similar or identical with the first rotation gear unit 160a, detailed description will not be repeated again.
Rolling equipment 10 can be used to manufacture as described below for electrode assembly 1.It is possible, firstly, to rotating around first electrode plate roller
200, first partition roller 400, second electrode plate roller 300 and second partition roller 500 wind first electrode plate 2, first partition 3a, the
Two electrode plates 4 and second partition 3b.
After first electrode plate roller 200 is prepared as described above to second partition roller 500, first electrode plate 2 and
One partition 3a can be unwound and be fixed to mandrel unit 600 by the first attachment roller 700.In addition, second electrode plate 4 and
Two partition 3b can be unwound and be fixed to mandrel unit 600 by the second attachment roller 800.At this point, first electrode plate and
One partition 3a can be attached to each other when across the first attachment roller 700.In addition, second electrode plate 4 and second partition 3b
It can be attached to each other when across the second attachment roller 800.
It is fixed to mandrel as described above in first electrode plate 2, first partition 3a, second electrode plate 4 and second partition 3b
After unit 600, mandrel unit 600 rotates, to form the electrode assembly 1 of fruit jelly roll.At this point, as described above, first is attached
Roller 700 first electrode plate 2 and first partition 3a can be attached together, second attachment roller 800 can be by second electrode plate 4
It is attached together with second partition 3b.
In above process, tension maintains roller 900 that can maintain evenly first electrode plate 2, first partition 3a, the second electricity
The tension of one or more of pole plate 4 and second partition 3b.
If electrode assembly 1 is formed with certain size, mandrel unit 600 with the rotation of mandrel unit 600
Rotation can temporarily cease.At this point, the first electricity can be respectively cut in the first cutter unit 100a and the second cutter unit 100b
Pole plate 2 and second electrode plate 4.
In detail, if stopped across the first electrode plate 2 of the first through hole 141a of the first supporting element 140a, first
Linear drive unit 130a can be operable to the linear moving cell 110a of linear movement first.
At this point, the lower cutter of cutter 120a-1 and first on be installed on the first linear moving cell 110a first
120a-2 can be linearly moved together with the first linear moving cell 110a.At this point, the first linear moving cell 110a can be
Linear movement in the width direction of first electrode plate 2.In this case, it is connected on first of rotary shaft 121a-1 on first
Rotating gear unit 160a-1 can linear movement, rotation under being connected to first on guide gear unit 150a-1 on first
The first backspin rotating disk unit 160a-2 of axis 121a-2 can under first linear movement on guide gear unit 150a-2.
Gear unit 160a-1 and first backspin rotating disk unit 160a-2 guide gear list on first are rotated on first
While movement on the lower guide gear unit 150a-2 of first 150a-1 and first, gear unit 160a-1 and first is rotated on first
Backspin rotating disk unit 160a-2 can rotate.Then, it is connected on rotate gear unit 160a-1 on first first and revolves
Shaft 121a-1 can rotate, and the first Shaft 121a-2 for being connected to the first backspin rotating disk unit 160a-2 can revolve
Turn.In addition, rotary shaft 121a-1 can be such that the first cutter 122a-1 rotates on first, the first Shaft 121a-2 can make
First bottom knife 122a-2 rotation.Especially since rotating gear unit 160a-1 and the first backspin rotating disk unit on first
160a-2 and the first linear moving cell 110a is linearly moved together by interlocking structure, and speed sync is possible.Therefore,
One cutter 122a-1 and the first bottom knife 122a-2 can be mobile with identical angular speed and linear velocity.
First cutter 122a-1 and the first bottom knife 122a-2 can rotate in opposite direction.For example, if first
Cutter 122a-1 is rotated clockwise, then the first bottom knife 122a-2 can rotate counterclockwise.Alternatively, if the first upper slitter
Piece 122a-1 rotates counterclockwise, then the first bottom knife 122a-2 can be rotated clockwise.In particular, when the first linear moving cell
When 110a is mobile, the first cutter 122a-1 and the first bottom knife 122a-2 can be in first electrode plates 2 close to the first cutter
It is rotated when 122a-1 and the first bottom knife 122a-2 towards first electrode plate 2.First cutter 122a-1 and the first bottom knife
The first surface 2a and second surface 2b of first electrode plate 2 can be respectively cut in 122a-2.
In this case, the lower pressing component 124a-2 of pressing component 124a-1 and first can use constant force court on first
The first cutter 122a-1 and the first bottom knife 122a-2 are pressed respectively to first electrode plate 2.At this point, pressing component on first
124a-1 can press the first cutter 122a-1 towards the first bottom knife 122a-2, and the first lower pressing component 124a-2 can court
The first bottom knife 122a-2 is pressed to the first cutter 122a-1.Therefore, in the first cutter 122a-1 and the first bottom knife
While 122a-2 cuts first electrode plate 2, the first cutter 122a-1 and the first bottom knife 122a-2 can be pressed with constant force
Press first electrode plate 2.
While first electrode plate 2 is cut as described above by the first cutter unit 100a, the second cutter unit 100b can
To cut second electrode plate 4 in a similar manner.At this point, operation and the behaviour of the first cutter unit 100a of the second cutter unit 100b
Make similar or identical, therefore its detailed description will be omitted.
While first electrode plate 2 and second electrode plate 4 are cut as described above, first partition 3a and second partition 3b
It can be cut with other cutter unit.In this case, first partition 3a and second partition 3b can be by common
Cutting method cutting.
Hereafter, mandrel unit 600 can be rotated again, fully to manufacture electrode assembly 1.
In electrode assembly 1, first electrode plate 2, first partition 3a, second electrode plate 4 and second partition 3b can be suitable
Stack to sequence.In this case, first electrode plate 2 can be further provided on another surface of second partition 3b.?
That is first electrode plate 2, first partition 3a, second electrode plate 4 and second partition 3b can be stacked alternately, therefore electricity
The available guarantee of the stability of pole component 1.
According to the rolling equipment 10 and milling method for secondary cell, since first electrode plate 2 and second electrode plate 4 divide
It can not be damaged by the first cutter 120a and the second cutter cuts, first electrode plate 2 and second electrode plate 4.
In addition, according to rolling equipment 10 and milling method, since first electrode plate 2 and second electrode plate 4 are smoothed cutting,
First electrode plate 2 and second electrode plate 4 can not be separated, or can not shape on first electrode plate 2 and second electrode plate 4
At burr.
In addition, according to rolling equipment 10 and milling method, due to when first electrode plate 2 and second electrode plate 4 are cut
Prevent the generation of pollutant, the available guarantee of the stability of electrode assembly 1.
Fig. 5 is to show the schematic diagram of the first cutter unit 100c according to another exemplary embodiment.Fig. 6 is along Fig. 5
Line VI-VI interception cross-sectional view.In the following description, appended drawing reference identical with above used appended drawing reference refers to
For identical element.
With reference to Fig. 5 and Fig. 6, cutter unit (not shown) may include the first cutter unit 100c and the second cutter unit
(not shown).First cutter unit 100c can cut first electrode plate 2, and the second cutter unit can cut second electrode plate 4.
First cutter unit 100c and the second cutter unit can have identical structure or similar structure.Alternatively,
One cutter unit 100c can be configured as described below, and the second cutter unit can be cut with first described referring to figs. 1 to Fig. 4
It is similar or identical to cut unit 100a.However, it is single will mainly to describe the cutting of the first cutter unit 100c and second in order to describe simplicity
Member has the case where identical structure or similar structure.In addition, in order to describe that the first cutter unit will mainly briefly be described in detail
100c。
First cutter unit 100c may include the first linear moving cell 110c, the first cutter 120c, the first linear drive
Moving cell 130c, the first supporting element 140c, the rotation of the first guide gear unit 150c and first gear unit 160c.First Line
Property moving cell 110c, the first cutter 120c, the first linear drive unit 130c, the first supporting element 140c, the first guiding tooth
Take turns the linear moving cell 110a of the rotation gear unit 160c and first of unit 150c and first, cutter 120a-1 on first, the
One linear drive unit 130a, the first supporting element 140a, gear list is rotated on first on guide gear unit 150a-1 and first
First 160a-1 is similar or identical, therefore its detailed description will not be repeated again.For example, the first through hole 141c can be formed through
First supporting element 140c.
First cutter 120c can include: be rotationally coupled to the first rotary shaft 121c of the first supporting element 140c；With
And it is connected to the first blade 122c of the first rotary shaft 121c.In addition, the first cutter 120c can include: the first cutter branch
Frame 123c, the first rotary shaft 121c are inserted into the first cutter holder 123c so that the first blade 122c is fixed to the first rotation
Shaft 121c；It is arranged on the first pressing that the first blade 122c is pressed between the first blade 122c and the first rotary shaft 121c
Component 124c.
First rotary shaft 121c, the first blade 122c, the first cutter holder 123c and the first pressing component 124c and
Rotary shaft 121a-1 on one, the first cutter 122a-1, pressing component 124a- on cutter holder 123a-1 and first on first
1 is similar or identical, therefore its detailed description will not be repeated again.
First cutter unit 100c may include the first linear cutter 170c in face of the first cutter 120c.First is linear
Cutter 170c can be fixed to the first supporting element 140c.Cleavable the with first electrode plate 2 of first linear cutter 170c
The second surface 2b of one surface 2a opposite first electrode plate 2.When the first cutter 120c rotation, the first linear cutter
The second surface 2b of the cleavable first electrode plate 2 of 170c.
The a part of first linear cutter 170c contacted with the second surface 2b of first electrode plate 2 can be flat
's.First linear cutter 170c can extend in the width direction of first electrode plate 2, the length of the first linear cutter 170c
Degree can be greater than the width of first electrode plate 2.
In addition, the thickness of the first linear cutter 170c can be different with the thickness of the first blade 122c.In detail, first
The thickness of linear cutter 170c can be greater than the thickness of the first blade 122c.Therefore, when the first electricity of the first blade 122c cutting
When pole plate 2, the first linear cutter 170c can support first electrode plate 2.
First cutter unit 100c can be by following operation.If rolling equipment 10 starts to operate, as described above, the first electricity
Pole plate 2, first partition 3a, second electrode plate 4 and second partition 3b can be wound around mandrel unit 600.
At this point, after electrode assembly 1 is formed with certain size around mandrel unit 600, the behaviour of mandrel unit 600
Work can suspend, and the first cutter unit 100c and the second cutter unit can be operable to cutting first electrode plate 2 and the second electricity
Pole plate 4.Since the operation of the second cutter is similar or identical with the operation of the first cutter unit 100c, to the second cutter unit
Detailed description will be omitted.
If the first linear drive unit 130c is operated, the first linear moving cell 110c can be with linear movement.So
Afterwards, the first rotary shaft 121c, the first rotation gear unit 160c and the first blade 122c can be according to the first linear moving cells
The movement of 110c and linear movement.Particularly, the first rotation gear unit 160c can be online in the first guide gear unit 150c
Property it is mobile while rotate.
If the first rotation gear unit 160c rotates as described above, the first rotary shaft 121c and the first blade 122c can also
It is rotated.At this point, the first blade 122c can cut the first surface of first electrode plate 2 while rotating as described above
2a.In addition, since the first surface of first electrode plate 2 is pressed as the first blade 122c is mobile, the of first electrode plate 2
Two surface 2b can be cut by the first linear cutter 170c.Particularly, due to the first blade 122c and the first linear cutter
170c be it is staggered, the first surface 2a and second surface 2b of first electrode plate 2 can be respectively by the first blade 122c and first
Linear cutter 170c cutting.
When the first blade 122c is linearly moved while rotating as described above, the first pressing component 124c can be pressed
The first blade 122c is pressed, uniform power is allowed to be applied to the first surface 2a of first electrode plate 2 from the first blade 122c.Cause
This, the first blade 122c can cut the first surface 2a of first electrode plate 2 with constant force.
In above process, the second cutter unit can cut second electrode plate 4.Due to the second cutter unit operation with
The operation of first cutter unit 100c is similar or identical, and detailed description will be omitted.
When first electrode plate 2 and second electrode plate 4 are cut or after being cut, mandrel unit 600 can be revolved again
Turn, fully to manufacture electrode assembly 1.
According to the rolling equipment 10 and milling method for secondary cell, since first electrode plate 2 and second electrode plate 4 divide
It can not be damaged by the first cutter 120c and the second cutter cuts, first electrode plate 2 and second electrode plate 4.
In addition, according to rolling equipment 10 and milling method, since first electrode plate 2 and second electrode plate 4 are smoothed cutting,
First electrode plate 2 and second electrode plate 4 can not be separated, or can not shape on first electrode plate 2 and second electrode plate 4
At burr.
In addition, according to rolling equipment 10 and milling method, due to when first electrode plate 2 and second electrode plate 4 are cut
Prevent the generation of pollutant, the available guarantee of the stability of electrode assembly 1.
As described above, electrode plate or partition can be precisely cut according to one or more the above exemplary embodiments.
It should be understood that the exemplary embodiment being described herein should be regarded as merely descriptive, rather than
For the purpose of limitation.Other should be usually considered to be useful for the description of the features or aspect in each exemplary embodiment
Other similar features or aspect in exemplary embodiment.
Although describing one or more exemplary embodiments by reference to figure, it will be appreciated by the skilled addressee that
Can do not depart from as following claims limit spirit and scope in the case where carry out form and details herein
Various changes.
Claims (19)
1. a kind of rolling equipment for secondary cell, the rolling equipment include:
Electrode plate roller is configured as unwinding the electrode plate around the electrode plate roller rolled electrode plate and from the electrode plate roller；
Partition roller is configured as unwinding the partition around the partition roller coiled separator and from the partition roller；
Adhere to roller, is configured as the electrode plate and the partition being attached to each other；
Mandrel unit, the electrode plate and the partition supplied from the attachment roller are wound around the mandrel unit；With
Cutter unit is arranged between the electrode plate roller and the mandrel unit, to be cut using linear movement by slit
Method cuts the electrode plate that the mandrel unit is supplied to from the electrode plate roller,
Wherein the cutter unit includes:
Linear movement unit, is configured as linear movement；With
Cutter is rotationally coupled to the linear movement unit, so as to when the linear movement unit linear movement
The electrode plate is cut while rotation.
2. rolling equipment according to claim 1, wherein the cutter unit further comprises being connected to the linear fortune
Moving cell is so that the linearly moving linear drive unit of linear movement unit.
3. rolling equipment according to claim 1, wherein at least one of two sides of the cutter can be taper.
4. rolling equipment according to claim 1, wherein the cutter includes:
Cutter on first is rotationally coupled to the linear movement unit, linearly to move when the linear movement unit
The first surface of the electrode plate is cut when dynamic while rotating；With
First lower cutter is being rotationally coupled to the linear movement unit in face of the position of cutter on described first,
To cut the second surface of the electrode plate, the second surface is different with the first surface of the electrode plate.
5. rolling equipment according to claim 4, wherein described the with the electrode plate of the described first lower cutter
A part of two surfaces contact is flat.
6. rolling equipment according to claim 4, wherein cutter and the first lower cutter are to hand on described first
Wrong.
7. rolling equipment according to claim 4, wherein cutter and described first descends cutter extremely on described first
Few a part overlaps each other.
8. rolling equipment according to claim 4, wherein when the electrode plate is close to cutter on described first and described
When the first lower cutter, cutter and the first lower cutter are rotated towards the electrode plate on described first.
9. rolling equipment according to claim 1, wherein the cutter unit further comprises supporting element, and the branch
Support member includes through hole, and the electrode plate passes through the through hole.
10. rolling equipment according to claim 9, wherein the cutter unit further comprises:
Guide gear unit on the supporting element is set；With
Fixed to the cutter and it is connected to the rotation gear unit of the guide gear unit, wherein when the linear movement
When unit is mobile, the rotation gear unit moves on the guide gear unit while rotating, to make described cut
Cutter rotation.
11. rolling equipment according to claim 10, wherein the cutter includes:
The rotary shaft for being connected to the rotation gear unit and being rotatably inserted into the linear movement unit；With
Be connected to the rotary shaft so as to the blade that rotates together of rotation gear unit.
12. rolling equipment according to claim 11, wherein the cutter further comprises being fixed to the blade
The cutter holder of the rotary shaft.
13. rolling equipment according to claim 11, wherein the cutter further comprise towards the electrode plate by
Press the pressing component of the blade.
14. rolling equipment according to claim 1, wherein the cutter is when the linear movement unit linear movement
The first surface of the electrode plate is cut while rotating；And
The cutter unit further comprises:
Linear cutter faces the cutter, to cut the second surface of the electrode plate, the second surface and the electricity
The first surface of pole plate is different.
15. a kind of milling method for secondary cell, the milling method include:
First electrode plate is unwound from first electrode plate roller and unwinds first partition from first partition roller；
The first electrode plate and the first partition are pressed by using the first attachment roller, the first partition is attached to institute
State first electrode plate；
The first electrode plate is wound by using mandrel unit, the first partition is attached to the first electrode plate；With
It is logical using the cutter unit of according to claim 1-14 described in any item rolling equipments if the mandrel unit stops
It crosses slit cutting method and cuts the first electrode plate.
16. milling method according to claim 15, wherein the mandrel unit is by the first electrode plate and described
One partition is wound into fruit jelly roll.
17. milling method according to claim 15, further comprises: by unwinding second electrode from second electrode plate roller
It plate and is unwound from second partition roller and second partition and the second electrode plate and the second partition is supplied to the mandrel list
Member winds the second electrode plate and the second partition around the mandrel unit.
18. milling method according to claim 17, wherein the first electrode plate, the first partition, described second
Electrode plate and the second partition are sequentially stacked.
19. milling method according to claim 17 further comprises being cut when the mandrel unit stops by slit
Segmentation method cuts the second electrode plate.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2014-0118023 | 2014-09-04 | ||
| KR1020140118023A KR102273773B1 (en) | 2014-09-04 | 2014-09-04 | Rolling device for secondary battery and rolling method for the same |
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| Publication Number | Publication Date |
|---|---|
| CN105406101A CN105406101A (en) | 2016-03-16 |
| CN105406101B true CN105406101B (en) | 2019-09-27 |
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| CN201510353437.8A Active CN105406101B (en) | 2014-09-04 | 2015-06-24 | Rolling equipment and milling method for secondary cell |
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|---|---|
| KR (1) | KR102273773B1 (en) |
| CN (1) | CN105406101B (en) |
| BR (1) | BR102015020208B1 (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108539242B (en) * | 2017-03-03 | 2021-11-30 | 株式会社Pole | Apparatus for forming edge of lead of secondary battery |
| JP7094013B2 (en) * | 2018-11-28 | 2022-07-01 | 甲南設計工業株式会社 | Resin sheet cutting machine |
| KR20210071588A (en) * | 2019-12-06 | 2021-06-16 | 주식회사 엘지에너지솔루션 | Electrode assembly manufacturing device, electrode assembly manufactured from thereof and rechargeable battery |
| KR20210143583A (en) * | 2020-05-20 | 2021-11-29 | 주식회사 엘지에너지솔루션 | Electrode sheet Cutting Device and Electrode sheet Cutting method having upper cutter and lower cutter |
| JP2022018027A (en) * | 2020-07-14 | 2022-01-26 | 株式会社京都製作所 | Electrode cutting device and manufacturing device of laminated cell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101095252A (en) * | 2005-01-25 | 2007-12-26 | 石川岛播磨重工业株式会社 | Facility for forming battery electrode plate |
| CN101667656A (en) * | 2008-09-01 | 2010-03-10 | 株式会社进宇工程 | Apparatus for winding battery roll of secondary battery |
| CN103662947A (en) * | 2012-09-21 | 2014-03-26 | Ckd株式会社 | Cutting device and winding device |
| JP2014075340A (en) * | 2012-09-12 | 2014-04-24 | Tokyo Kikai Seisakusho Ltd | Device and method for forming electrode sheet |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012115914A (en) * | 2010-11-29 | 2012-06-21 | Hitachi Cable Ltd | Slit machining apparatus for metal foil |
| JP5580357B2 (en) * | 2012-03-14 | 2014-08-27 | Ｃｋｄ株式会社 | Winding device |
-
2014
- 2014-09-04 KR KR1020140118023A patent/KR102273773B1/en active IP Right Grant
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- 2015-06-24 CN CN201510353437.8A patent/CN105406101B/en active Active
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101095252A (en) * | 2005-01-25 | 2007-12-26 | 石川岛播磨重工业株式会社 | Facility for forming battery electrode plate |
| CN101667656A (en) * | 2008-09-01 | 2010-03-10 | 株式会社进宇工程 | Apparatus for winding battery roll of secondary battery |
| JP2014075340A (en) * | 2012-09-12 | 2014-04-24 | Tokyo Kikai Seisakusho Ltd | Device and method for forming electrode sheet |
| CN103662947A (en) * | 2012-09-21 | 2014-03-26 | Ckd株式会社 | Cutting device and winding device |
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| Publication number | Publication date |
|---|---|
| BR102015020208B1 (en) | 2022-01-25 |
| CN105406101A (en) | 2016-03-16 |
| KR102273773B1 (en) | 2021-07-06 |
| KR20160028900A (en) | 2016-03-14 |
| BR102015020208A2 (en) | 2016-06-21 |
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