CN203282824U - Device for continuously supplementing lithium powder to double faces of negative electrode piece of lithium ion battery - Google Patents
Device for continuously supplementing lithium powder to double faces of negative electrode piece of lithium ion battery Download PDFInfo
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- CN203282824U CN203282824U CN2013201349720U CN201320134972U CN203282824U CN 203282824 U CN203282824 U CN 203282824U CN 2013201349720 U CN2013201349720 U CN 2013201349720U CN 201320134972 U CN201320134972 U CN 201320134972U CN 203282824 U CN203282824 U CN 203282824U
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Abstract
The utility mode belongs to the technical field of production equipment of lithium ion batteries, and particularly relates to a device for continuously supplementing lithium powder to double faces of a negative electrode piece of a lithium ion battery. The device for continuously supplementing lithium powder to the double faces of the negative electrode piece of the lithium ion battery comprises a unwinding mechanism, a first lithium-supplementing system, a protective film system, a first rolling system, a tension adjusting overturning mechanism, a second lithium-supplementing system, a second rolling system and a winding mechanism, wherein the first lithium-supplementing system and the second lithium-supplementing system respectively comprise a feeding system, a silk screen electrode and a transfer printing electrode, each silk screen electrode and each transfer printing electrode are oppositely arranged, each silk screen electrode and each transfer printing electrode are respectively in electric connection with a high-voltage direct-current power supply, and a baffle system is arranged at the bottom of each silk screen electrode. Compared with the prior art, the device for continuously supplementing lithium powder to the double faces of the negative electrode piece of the lithium ion battery scatters lithium powder on the upper surface and the lower surface of the negative electrode piece evenly, quantitatively and accurately. Besides, lithium powder is not extruded in the entire process, and therefore damage to soft powder like the lithium powder is effectively avoided.
Description
Technical field
The utility model belongs to lithium ion battery production equipment technical field, relates in particular to a kind of device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder.
Background technology
Lithium ion battery, due to the advantage with high voltage, high-energy-density and long circulation life, has become one of the widest secondary cell of range of application.But along with portable electric appts is microminiaturized and the development of long standby, and electric bicycle, electric automobile etc. are high-power, the enabling of high-energy equipment, and people have proposed more and more higher requirement to the energy density of the lithium ion battery as accumulation power supply.
For negative plate, all can consume the part lithium due to the formation of solid electrolyte film (SEI film) in the initial charge process of battery, cause therefrom the loss of anode material of lithium, thereby reduced the capacity of battery, cause the reduction of efficiency first.This shows particularly evidently in take alloy material (as silicon alloy and ashbury metal etc.) as the negative plate of active material.
In order to reduce the reduction of the battery capacity of bringing due to the irreversible capacity of battery in the first charge-discharge process, more existing patent literatures some solutions.For example publication number is that the Chinese patent application of CN1290209C is mentioned lithium metal, negative material and on-aqueous liquid are mixed to form slurry, slurry is coated on collector, then dry slurries, although the method can improve efficiency first, but because the lithium metal reactivity is higher, whole operating environment need to be carried out in anhydrous dry environment, cause complex procedures.The on-aqueous liquid of selecting in addition can not react with metallic lithium powder in mixed process, this type of on-aqueous liquid is mostly inflammable and explosive liquid, such as the oxolane of mentioning in this patent application, and toluene and varsol etc.And follow-up coating, cold pressing and winding process all must carry out under dry environment, harsh to environmental requirement, the negative plate cost of manufacture is higher.
Application number is that the Japanese patent application of JP1996027910 adopts metal lithium sheet is covered the negative plate surface for another example, then reels and makes battery, and the method for then pouring into electrolyte prepares lithium ion battery., although the method also can play the effect of mending lithium, yet the amount of the lithium that negative plate can absorb is far smaller than the lithium that metal lithium sheet provides, therefore can cause the inhomogeneous of embedding lithium, and cause the distortion of pole piece, and lithium also easily occur analysing in follow-up circulation.
In addition, application number is that the Japanese patent application of JP2005038720 is mentioned and adopted the method for vacuum evaporation to become layer of metal lithium layer in the negative plate surface evaporation, although the Thickness Ratio metal lithium sheet of the lithium layer of evaporation is thin, yet the more difficult control of the thickness of lithium metal layer in this process, and whole process must be under vacuum environment, evaporation efficiency is also lower, and the transfer processing of follow-up pole piece is also more complicated, and cost is higher.
In view of this, necessaryly provide a kind of device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder, this device has utilized the principle of filter screen vibration powder in conjunction with electrostatic effect, can be with lithium metal accurately, quantitatively and be evenly dispersed in the surface of negative plate, and through the lithium powder that roll operation will be filled, be compacted to the pole piece surface, thereby the anticathode sheet plays the lithium effect of mending; And adopt the two-sided lithium of mending continuously that this device can the anticathode sheet, whole benefit lithium process operation is simple, cost is low, be suitable for volume production.
Need to prove, the technology that also has in recent years the electrostatic effect utilized to carry out powder coating occurs, patent documentation 1(Japanese Patent Publication 64-9955 communique for example) disclose and a kind ofly to spongiform roller surface, supplied with powder, and rotation is dropped powder in the silk screen electrode, and powder drops and realizes the method for evenly supplying with by the hole of silk screen electrode; Patent documentation 2(Japanese Patent Publication 61-116578 communique for another example) disclose to silk screen electrode powder body, and silk screen has been carried out up-down vibration, realized the method that powder is supplied with.Also as, patent documentation 3(publication number is the Chinese patent application of CN 102348511 A) disclose to silk screen electrode powder body, and with brush with its paving even and the extruding powder is dropped a kind of powder coating process.But there are the following problems for above-mentioned technology: at first, powder is difficult to weight feed.For example, patent documentation 1 adopts the occasion of roller coat cloth, the uniformity of powder amount is decided by the uniformity that hopper supplies to the powder amount on roller, and the powder on roller, part is absorbed by spongiform roller, a part, in the at random rebound of spongiform roller curved surface, is difficult to realize the powder weight feed by roller.In addition, the problem that the same existence of patent documentation 2 can't the weight feed powder, be spread across the first skewness of powder on the silk screen electrode by hopper, causes the powder of shaking off inhomogeneous.
Secondly, there is the action of contact squeeze in powder supply process, for example, and the powder on the roller of patent documentation 1 and the extruding of silk screen, the extruding of the brush of patent documentation 3 to powder and silk screen.This for the soft powder such as lithium powder, very easily destroys its structure and easily adheres to contact surfaces, and causing can't weight feed and operating process difficulty.
The utility model content
The purpose of this utility model is for the deficiencies in the prior art, and provide a kind of device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder, adopt this device can be with lithium metal accurately, quantitatively and be evenly dispersed in the surface of negative plate, and through the lithium powder that roll operation will be filled, be compacted to the negative plate surface, thereby the anticathode sheet plays the lithium effect of mending; And this device can the anticathode sheet the two-sided lithium of mending continuously, with overcome benefit lithium technology embedding lithium of the prior art inhomogeneous, can not be exactly quantitatively roller easily is stained with in embedding lithium, roll-in simultaneously, harsh to environmental requirement, cost of manufacture is high not enough and two-sided deficiency of mending lithium that can not the anticathode sheet.
in order to achieve the above object, the utility model adopts following technical scheme: a kind of device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder, comprise the unreeling structure that sets gradually, first mends the lithium system, the diaphragm system, the first roll-in system, the tension adjustment switching mechanism, second mends the lithium system, second roller pressing system and rolling-up mechanism, described the first benefit lithium system and described second is mended the lithium system and is included feed system, silk screen electrode and transfer printing electrode, described silk screen electrode and described transfer printing electrode are staggered relatively, and described silk screen electrode and described transfer printing electrode are electrically connected to high-voltage DC power supply respectively, described silk screen electrode bottom is provided with baffle system, described device also comprises the trailer system for the traction negative plate.
as a kind of improvement of the present utility model, described feed system comprises elevating hopper, hopper and Powder Recovery hopper, described hopper is arranged at the below of described elevating hopper, and be provided with the funnel-form blanking channel between described elevating hopper and described hopper, described Powder Recovery hopper is arranged at the below of described hopper, described elevating hopper bottom is provided with the elevating hopper filter screen, described elevating hopper top is provided with the elevating hopper sensor, described elevating hopper below also is provided with the elevating hopper vibrator, the top of described hopper is provided with hopper vibrator and hopper sensor, described hopper bottom is provided with the hopper filter screen.
As a kind of improvement of the present utility model, described elevating hopper filter screen is fixed in described elevating hopper by press box, and described hopper filter screen is fixed in described hopper by press box.
, as a kind of improvement of the present utility model, be respectively arranged with the hole that aperture equates on described elevating hopper filter screen and described hopper filter screen.
As a kind of improvement of the present utility model, the bottom of described elevating hopper and the bottom of described hopper all are equipped with buffer gear.
As a kind of improvement of the present utility model, the aperture of the aperture of described elevating hopper filter screen and described hopper filter screen is 50 ~ 150um.
As a kind of improvement of the present utility model, the upper surface of described transfer printing electrode is provided with poly (methyl methacrylate) plate, and the lower surface of described transfer printing electrode is provided with the acetal resin plate.
As a kind of improvement of the present utility model, described baffle system comprises two groups of telescopic baffles, sensor and dust exhaust apparatuses.
As a kind of improvement of the present utility model; this device also comprises programmable logic controller (PLC), and described unreeling structure, described feed system, described silk screen electrode, described transfer printing electrode, described baffle system, described the first roll-in system, described second roller pressing system, described diaphragm system and the rolling-up mechanism of being connected all are connected with described programmable logic controller (PLC).
As a kind of improvement of the present utility model, described trailer system comprises the carry-over pinch rolls that several intervals arrange.
With respect to prior art, the utility model is mended lithium system, the first roll-in system, tension adjustment switching mechanism, the second acting in conjunction of mending lithium system, second roller pressing system and rolling-up mechanism by unreeling structure, first, makes the lithium powder can be dispersed in evenly, quantitatively, accurately two surfaces up and down of negative plate.Concrete, the lithium powder shakes from feed system, passing the silk screen electrode completes for the first time and is uniformly distributed, the electrostatic effect that provides at dropping process mesohigh dc source makes the lithium powder charged, complete secondary and be uniformly distributed thereby static repels mutually, then, through the roll-in of the first roll-in system and second roller pressing system, make the lithium powder be compacted to the surface of negative plate, in order to avoid come off, thereby realize the two-sided lithium of mending continuously of anticathode sheet.And owing to having introduced the diaphragm system before the first roll-in system, therefore, between layers bonding of the negative plate that when it can also prevent rolling, adsorption has a lithium powder.In addition, the electrostatic effect that high-voltage DC power supply provides, can also control the orientation absorption of lithium powder, and avoiding dust to kick up affects operating environment.Adopt this device to mend in the whole process of lithium and can not push the lithium powder, thus the destruction of effectively avoiding the soft powder to this class of lithium powder to cause.
after adopting device of the present utility model to complete benefit lithium and roll operation, negative plate, positive plate and barrier film make battery core through operations such as coiling or laminations again, and pour into electrolyte in battery core, can make metallic lithium powder diffuse into negative plate inside through electrochemistry, for negative plate provides reactive metal lithium powder, namely mend lithium, thereby for circulating battery provides the lithium source, promote the efficiency first of battery, battery capacity and cycle performance, and add the lithium source can also remove moisture in electrolyte, suppress the generation of HF acid, change the electrode potential of electrode material, make positive pole work under better suited operating potential, thereby the structure of protection positive electrode is not damaged.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model and useful technique effect thereof are elaborated.
Fig. 1 is the structural representation of the utility model to the device of the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder.
Fig. 2 is the structural representation of feed system in the utility model.
Wherein: the 1-unreeling structure, 2-first mends lithium system, 3-the first roll-in system; 4-tension adjustment switching mechanism, 5-second mends lithium system, 6-second roller pressing system; the 7-rolling-up mechanism, 8-diaphragm system, 9-feed system; 10-silk screen electrode; 11-transfer printing electrode, 13-baffle system, 16-carry-over pinch rolls; the 90-elevating hopper; the 91-hopper, 92-Powder Recovery hopper, 93-funnel-form blanking channel; 94-elevating hopper filter screen; 95-elevating hopper sensor, 96-elevating hopper vibrator, 97-hopper vibrator; 98-hopper sensor, 99-hopper filter screen.
The specific embodiment
as shown in Figure 1, a kind of device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder that the utility model provides, comprise the unreeling structure 1 that sets gradually, first mends lithium system 2, be used for preventing the negative plate bonding diaphragm system 8 between layers after the roll-in of lithium powder, the first roll-in system 3, the tension adjustment switching mechanism 4 that is used for adjustment of tonicity and the benefit lithium face of negative plate is overturn, second mends lithium system 5, second roller pressing system 6 and rolling-up mechanism 7, the first benefit lithium system 2 and second is mended lithium system 5 and is included for the feed system 9 of placing lithium powder and powder, silk screen electrode 10 and transfer printing electrode 11, silk screen electrode 10 and transfer printing electrode 11 are oppositely arranged, and lay respectively at the above and below of negative plate, and silk screen electrode 10 and transfer printing electrode 11 are electrically connected to high-voltage DC power supply respectively, silk screen electrode 10 bottoms are provided with for realizing intermittently mending the baffle system 13 of lithium function, this device also comprises the trailer system for the traction negative plate.Wherein, the first roll-in system 3 and second roller pressing system 6 are to mend negative plate after lithium for roll-in, realize that the lithium powder is not stained with roller.
Wherein, the first roll-in system 3 and second roller pressing system 6 are the pressure roller of surface through specially treated, and the pressure roller inner ring is high hardness alloy steel, outer self lubricity, low-frictional force, high rigidity and the high-abrasive material of adopting.The barrier film film volume of diaphragm system 8 adopts low-frictional force, and the material of low cementability, as PETG or nylon.
wherein, as shown in Figure 2, feed system 9 comprises elevating hopper 90, hopper 91 and Powder Recovery hopper 92, hopper 91 is arranged at the below of elevating hopper 90, and be provided with funnel-form blanking channel 93 between elevating hopper 90 and hopper 91, be used for improving the uniformity of blanking, Powder Recovery hopper 92 is arranged at the below of hopper 91, elevating hopper 90 bottoms are provided with elevating hopper filter screen 94, elevating hopper 90 tops are provided with elevating hopper sensor 95, elevating hopper 90 belows also are provided with elevating hopper vibrator 96, the top of hopper 91 is provided with hopper vibrator 97 and hopper sensor 98, hopper 91 bottoms are provided with hopper filter screen 99.
Wherein, elevating hopper sensor 95 and hopper sensor 98 are the precise laser sensor, are used for the variation of monitoring material level.Elevating hopper vibrator 96 and hopper sensor 98 are pneumatic vibrator, and pneumatic vibrator is by changing air pressure and the adjustable joint vibration frequency of throughput and amplitude, and the vibration frequency of pneumatic vibrator is 20Hz-200Hz.
Elevating hopper filter screen 94 is fixed in elevating hopper 90 by press box, and hopper filter screen 99 is fixed in hopper 91 by press box, can realize installing flexibly and dismounting.
Be respectively arranged with a plurality of holes that aperture equates on elevating hopper filter screen 94 and hopper filter screen 99.
The bottom of the bottom of elevating hopper 90 and hopper 91 all is equipped with buffer gear, adopts four jiaos of symmetrical buffering location and installation in the bottom of elevating hopper 90 and hopper 91.
The aperture of the aperture of elevating hopper filter screen 94 and hopper filter screen 99 is 50 ~ 150um, is preferably 50-100um, thereby both can guarantee the lithium powder particles smoothly by filter screen, and indium addition that excessive velocities causes is uncontrollable to avoid again the lithium powder to drop.The aperture of silk screen electrode 10 is 50 ~ 150um.
The upper surface of transfer printing electrode 11 is provided with poly (methyl methacrylate) plate, and its lower surface is provided with the acetal resin plate.The effect transfer printing electrode 11 own materials that play insulation are chosen as the scale copper of 0.5mm, require surface oxidation treatment, and are bright and clean smooth.And silk screen electrode 10 adopts metal frame to pin, and fastened by screw is fixed, and is easy to installing/dismounting.Silk screen electrode 10 and transfer printing electrode 11 be arranged in parallel, and the distance both is that 5-15mm is adjustable.
As shown in Figure 3, baffle system 13 comprises two groups of telescopic baffles, sensor and dust exhaust apparatuses., by the stretching out, return and the alternation of two groups of telescopic baffles of telescopic baffle,, by covering negative plate Copper Foil district, realize intermittently mending the lithium operation.
The utility model also comprises programmable logic controller (PLC); unreeling structure 1, feed system 9, silk screen electrode 10, transfer printing electrode 11, baffle system 13, the first roll-in system 3 are connected with the second roller pressing system, diaphragm system 8 is connected and all with programmable logic controller (PLC), is connected with rolling-up mechanism; control with the automation that realizes evenly, quantitatively, accurately mends lithium, reduce the impact of manual operation.
Trailer system comprises the carry-over pinch rolls 16 that several intervals arrange.
Concrete, the negative plate film is provided in unreeling structure 1, starts unreeling structure 1, rolling-up mechanism 7, carry-over pinch rolls 16 and tension adjustment switching mechanism 4, and negative plate passes between silk screen electrode 10 and transfer printing electrode 11 through the traction of carry-over pinch rolls 16.Logical high voltage direct current between the first silk screen electrode 10 of mending lithium system 2 and transfer printing electrode 11, open first this moment and mend the feed system 9 of lithium system 2, make the lithium powder vibrate and electrostatic interaction under even, the quantitative one side that is adsorbed onto negative plate.because negative plate comprises the Qu Hefei that the films district's (being generally bright and clean Copper Foil) of filming, while mending lithium, only need to mend lithium to the district of filming, need not to mend lithium to the non-district of filming, therefore, when the sensor sensing in baffle system 13 is regional to Copper Foil, one group of telescopic baffle namely extend out to directly over the Copper Foil zone and covers the Copper Foil zone fully, telescopic baffle is the non-district of filming along with negative plate synchronously enters, the first elevating hopper vibrator 96 and hopper vibrator 97 of mending the feed system 9 of lithium system 2 stops simultaneously, the lithium powder that drops on a small quantity is positioned at the telescopic baffle top, after the telescopic baffle zone is fully by the non-district of filming, elevating hopper vibrator 96 and hopper vibrator 97 are opened in advance and are mended the lithium continuation, telescopic baffle is retracted, get back to the below of dust exhaust apparatus, dust exhaust apparatus is started working, recycle the lithium powder that falls within the telescopic baffle top.Another group telescopic baffle hockets and blocks, thereby realizes intermittently mending the lithium function.
The pole piece of having mended the lithium powder advanced the first roll-in system 3, and layer protecting film is introduced on the surface in the first roll-in system 3 before roll-in.The pole piece that single face is handled is through tension adjustment switching mechanism 4 and turn to another side, lead to high voltage direct current between the second silk screen electrode 10 of mending lithium system 5 and transfer printing electrode 11, open first this moment and mend the feed system 9 of lithium system 5, carry out according to the method described above same benefit lithium and roll-in, enter finally rolling-up mechanism 7 rollings.In whole benefit lithium process, contactless property extruding action, but adopt filter screen vibration powder in conjunction with the high-pressure electrostatic effect, thus realized that the lithium powder makes an addition to two surfaces up and down of negative plate evenly, quantitatively, accurately, this is very necessary for soft dry powder such as lithium powder.
One of them key point of the utility model is to control feed system and mends the uniformity of lithium amount, concrete, initial lithium powder is placed in elevating hopper 90, through 96 vibrations of elevating hopper vibrator, a plurality of funnel-form blanking channels 93 that distribute side by side by elevating hopper filter screen 94 and bottom thereof successively, be supplemented in hopper 91, when hopper vibrator 97 was started working, the lithium powder added to through the negative plate in feed system 9 zones surperficial through hopper filter screen 99 evenly, quantitatively.The unnecessary powder of overflowing falls in the Powder Recovery hopper 92 of bottom.When the lithium powder position variable quantity in hopper 91 surpasses designated value, hopper sensor 98 provides signal, the instruction that the PLC control system namely provides 96 work of elevating hopper vibrator starts vibration charging, until material level recovers setting value, keep constant purpose thereby reach hopper 91 material levels, and then control the uniformity of mending the lithium amount.When elevating hopper 90 material levels changed over setting value, elevating hopper sensor 95 provided signal equally, and the PLC control system namely provides reinforced instruction.So realize vibration feeder and keep the constant function of lithium powder amount, and then, by controlling both oscillator frequency and amplitude, translational speed, filter screen mesh size, can complete the quantitative interpolation of lithium powder.
Another key point of the utility model is to control the uniformity of mending lithium.Wherein, lithium powder in elevating hopper 90 makes an addition in hopper 91 comparatively uniformly through equally distributed a plurality of funnel-form blanking channels 93, lithium powder in hopper 91 passes through effect of vibration, open the hopper filter screen 99 in even hole trickles down through being positioned at hopper 91 bottoms, forming the lithium powder is uniformly distributed for the first time, the lithium powder lotus identical charges in high-voltage electrostatic field that falls, mutually repel to form again being uniformly distributed, and then evenly make an addition to the surface of negative plate.In addition, the electric current that the utility model mesohigh dc source provides is 2mA, and low current can guarantee the security that operates.
The voltage that high-voltage DC power supply provides is 500V-10kV, preferred 2-8KV, the elevating hopper vibrator 96 that is installed on elevating hopper 90 is 20Hz-200Hz with the vibration frequency that is installed on the hopper vibrator 97 of hopper 91, be preferably 50Hz-150Hz,, by the controlled dither motor of intensity, realize the controllability of the amount that the lithium powder drops.
Upper surface and the supplementary lithium powder of lower surface to negative plate can provide for the battery that uses this negative plate the lithium source; thereby promote the cycle performance of efficiency first, battery capacity and the battery of battery; and add the lithium source can also remove moisture in electrolyte; suppress the generation of HF acid; change the electrode potential of electrode material; make positive pole work under better suited operating potential, thereby the structure of protection positive electrode is not damaged, and improves the service life cycle of battery.
In addition, whole preparation process operation is simple, cost is low, and meets the two-sided lithium of mending continuously/intermittently, especially, when the employing programmable logic controller (PLC), realizes automated production, is that the method is particularly suitable for volume production, and improving production efficiency, reduce production costs.
It should be noted that, the operating process that supplements the lithium powder should be placed in dry airtight space to be carried out, the operator should dress the Fencing protection helmet, specialty protective garment, gloves etc., mend the professional fire-extinguishing apparatus that the lithium operation should be equipped with the graphite dry powder extinguisher, discarded object is unified to be processed, and carries out comprehensive Safe Training, guarantee the person, life, property safety.
Need to prove, more than just for example simple, to the utility model without any restriction.Therefore, in the situation that it does not break away from the distortion that the purpose of this utility model carries out and improves all belongs in interest field of the present utility model.For example, the utility model is not limited to the benefit lithium operation for lithium ion pole piece, is equally applicable to the operation of other dry powder coatings, that is, the utility model belongs to a kind of contactless, quantitative, uniform dry powder coating method.
For example, silk screen electrode 10 can adopt other except screen pack to have the form of screen net structure in invention, its objective is and evenly spills material.
For example, the mode of vibration of vibrator in the present invention, installation site is not limited to them, and purpose is can realize vibration frequency and amplitude adjustable, guarantees simultaneously evenly vibration blanking.
For example, the shape of elevating hopper 90 and hopper 91 in the present invention, the operation principle of sensor, all without any restriction, its objective is elevating hopper 90 to the even feeding of hopper 91, and hopper 91 material levels keep stable, realize mending the quantitative of lithium.
For example, the distance of silk screen electrode 10 and transfer printing electrode 11 in the present invention, the translational speed of hopper and oscillation intensity are all an example, and it is adjusted accordingly and still belongs to the scope of protection of the invention.
For example, the poly (methyl methacrylate) plate that in present embodiment, adopt on transfer printing electrode 11 upper stratas, the acetal resin plate that lower floor adopts, its objective is the insulation protection effect, other insulating materials are applicable too.
Claims (10)
1. device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder, it is characterized in that: comprise the unreeling structure that sets gradually, first mends the lithium system, the diaphragm system, the first roll-in system, the tension adjustment switching mechanism, second mends the lithium system, second roller pressing system and rolling-up mechanism, described the first benefit lithium system and described second is mended the lithium system and is included feed system, silk screen electrode and transfer printing electrode, described silk screen electrode and described transfer printing electrode are staggered relatively, and described silk screen electrode and described transfer printing electrode are electrically connected to high-voltage DC power supply respectively, described silk screen electrode bottom is provided with baffle system, described device also comprises the trailer system for the traction negative plate.
2. the device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder according to claim 1, it is characterized in that: described feed system comprises elevating hopper, hopper and Powder Recovery hopper, described hopper is arranged at the below of described elevating hopper, and be provided with the funnel-form blanking channel between described elevating hopper and described hopper, described Powder Recovery hopper is arranged at the below of described hopper, described elevating hopper bottom is provided with the elevating hopper filter screen, described elevating hopper top is provided with the elevating hopper sensor, described elevating hopper below also is provided with the elevating hopper vibrator, the top of described hopper is provided with hopper vibrator and hopper sensor, described hopper bottom is provided with the hopper filter screen.
3. the device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder according to claim 2, it is characterized in that: described elevating hopper filter screen is fixed in described elevating hopper by press box, and described hopper filter screen is fixed in described hopper by press box.
4. the device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder according to claim 2, is characterized in that: be respectively arranged with the hole that aperture equates on described elevating hopper filter screen and described hopper filter screen.
5. the device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder according to claim 2, it is characterized in that: the bottom of described elevating hopper and the bottom of described hopper all are equipped with buffer gear.
6. the device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder according to claim 4, it is characterized in that: the aperture of the aperture of described elevating hopper filter screen and described hopper filter screen is 50 ~ 150um.
7. the device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder according to claim 1, it is characterized in that: the upper surface of described transfer printing electrode is provided with poly (methyl methacrylate) plate, and the lower surface of described transfer printing electrode is provided with the acetal resin plate.
8. the device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder according to claim 1, it is characterized in that: described baffle system comprises two groups of telescopic baffles, sensor and dust exhaust apparatuses.
9. the device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder according to claim 1; it is characterized in that: also comprise programmable logic controller (PLC), described unreeling structure, described feed system, described silk screen electrode, described transfer printing electrode, described baffle system, described the first roll-in system, described second roller pressing system, described diaphragm system and the rolling-up mechanism of being connected all are connected with described programmable logic controller (PLC).
10. the device to the two-sided continuous supplementation lithium of anode plate for lithium ionic cell powder according to claim 1 is characterized in that: described trailer system comprises the carry-over pinch rolls that several intervals arrange.
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Cited By (9)
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| CN104916814A (en) * | 2015-06-26 | 2015-09-16 | 宁德时代新能源科技有限公司 | Processing system and method for lithium powder of lithium ion battery pole piece |
| CN105226238A (en) * | 2015-10-13 | 2016-01-06 | 宁德新能源科技有限公司 | Pole piece lithium powder rolling device and method |
| CN107123785A (en) * | 2016-02-25 | 2017-09-01 | 宁德时代新能源科技股份有限公司 | Lithium system is mended to pole piece |
| CN107591517A (en) * | 2017-09-13 | 2018-01-16 | 东莞市沃泰通新能源有限公司 | A kind of device and method that lithium is continuously mended to anode plate for lithium ionic cell |
| CN109860751A (en) * | 2017-11-30 | 2019-06-07 | 银隆新能源股份有限公司 | Winding device for battery reparation |
| CN110476275A (en) * | 2017-04-03 | 2019-11-19 | 株式会社Lg化学 | Prelithiation equipment, the method and negative electrode unit for producing negative electrode unit |
| CN110756404A (en) * | 2019-11-07 | 2020-02-07 | 深圳市赢合科技股份有限公司 | Device and method for manufacturing coating layer on base material |
| CN111554883A (en) * | 2020-05-12 | 2020-08-18 | 郜明文 | Pre-lithiation method for preparing electrode membrane based on dry method |
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2013
- 2013-03-25 CN CN2013201349720U patent/CN203282824U/en not_active Expired - Lifetime
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| CN104916814A (en) * | 2015-06-26 | 2015-09-16 | 宁德时代新能源科技有限公司 | Processing system and method for lithium powder of lithium ion battery pole piece |
| CN105226238A (en) * | 2015-10-13 | 2016-01-06 | 宁德新能源科技有限公司 | Pole piece lithium powder rolling device and method |
| CN105226238B (en) * | 2015-10-13 | 2019-10-08 | 宁德新能源科技有限公司 | Pole piece lithium powder rolling device and method |
| CN107123785A (en) * | 2016-02-25 | 2017-09-01 | 宁德时代新能源科技股份有限公司 | Lithium system is mended to pole piece |
| CN110476275A (en) * | 2017-04-03 | 2019-11-19 | 株式会社Lg化学 | Prelithiation equipment, the method and negative electrode unit for producing negative electrode unit |
| CN110476275B (en) * | 2017-04-03 | 2022-12-02 | 株式会社Lg新能源 | Prelithiation apparatus, method of producing negative electrode unit, and negative electrode unit |
| CN107591517A (en) * | 2017-09-13 | 2018-01-16 | 东莞市沃泰通新能源有限公司 | A kind of device and method that lithium is continuously mended to anode plate for lithium ionic cell |
| CN109860751A (en) * | 2017-11-30 | 2019-06-07 | 银隆新能源股份有限公司 | Winding device for battery reparation |
| CN109860751B (en) * | 2017-11-30 | 2023-11-10 | 银隆新能源股份有限公司 | Winding device for battery repair |
| CN110756404A (en) * | 2019-11-07 | 2020-02-07 | 深圳市赢合科技股份有限公司 | Device and method for manufacturing coating layer on base material |
| CN111554883A (en) * | 2020-05-12 | 2020-08-18 | 郜明文 | Pre-lithiation method for preparing electrode membrane based on dry method |
| CN114100907A (en) * | 2021-11-25 | 2022-03-01 | 江苏国邦检测技术有限公司 | Graphite alkene lithium-ion battery pole piece processingequipment |
| CN114100907B (en) * | 2021-11-25 | 2022-07-19 | 江苏国邦检测技术有限公司 | Graphite alkene lithium-ion battery pole piece processingequipment |
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