CN203415654U - Cathode pole piece treatment device for lithium ion battery - Google Patents
Cathode pole piece treatment device for lithium ion battery Download PDFInfo
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- CN203415654U CN203415654U CN201320547863.1U CN201320547863U CN203415654U CN 203415654 U CN203415654 U CN 203415654U CN 201320547863 U CN201320547863 U CN 201320547863U CN 203415654 U CN203415654 U CN 203415654U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a cathode pole piece treatment device for a lithium ion battery. The device comprises a rolling mechanism, a heating mechanism, a vacuumizing mechanism and a metal lithium treatment mechanism, wherein the rolling mechanism comprises a press roller and a back roller and is used for rolling a cathode pole piece to be treated; the surface of the cathode pole piece is a cathode diaphragm containing a cathode active material; the heating mechanism comprises a heating chamber; the heating chamber seals and accommodates the rolling mechanism and is used for heating the cathode pole piece; the vacuumizing mechanism is in sealed communication with the heating chamber of the heating mechanism and is used for vacuumizing the heating chamber of the hating mechanism; the metal lithium treatment mechanism is positioned in the heating chamber and at the upstream part of a rolling pair consisting of the press roller and the back roller of the rolling mechanism, comprises a metal lithium spray head which faces to the surface of the cathode diaphragm of the cathode pole piece to be treated, and is used for spraying liquid lithium onto the surface of the cathode diaphragm of the cathode pole piece so as to enrich lithium for the cathode pole piece before rolling the cathode pole piece by the press roller and the back roller of the rolling mechanism. Therefore, the requirement on the lithium enrichment uniformity and quantity can be improved, the cost is low, the process is simple, and industrial batch production is easy to realize.
Description
Technical field
The utility model relates to lithium ion battery field, relates in particular to a kind of lithium ion battery negative electrode processing unit.
Background technology
Since Sony corporation of Japan realizes commercialization for lithium ion battery material, along with the application of lithium ion battery constantly expands, as overlength service time of miniature portable electronic product and lithium ion battery etc., to the proposition of the energy density of lithium ion battery more and more higher requirement.For existing carbon negative pole material, in initial charge process, not only can consume a part from the lithium ion in positive electrode because forming solid electrolyte film (SEI film), but also deviate from because of irreversible in negative material of a part of lithium ion battery, make coulomb efficiency first of lithium-ion electric core can not reach 100%, for example coulomb efficiency first of graphite material is in 90% left and right, other negative material is as silicium cathode material, its first coulomb efficiency between 65%-85%.If therefore the lithium ion in the positive electrode of negative material loss can be offset and just can be increased substantially the energy density of lithium ion battery.
A coulomb a kind of method of efficiency first that improves lithium ion battery is to go in a part of lithium metal being joined to negative pole before preparation battery core prerequisite, and certain methods is employed and has made some progress for this reason.The Chinese patent CN102779975A announcing on November 14th, 2012 discloses a kind of method of supplementing lithium powder to anode plate for lithium ionic cell, in this patent, by mechanical oscillation and to the alive device of lithium powder, realize rich lithium, because the precision problem of the device of mechanical oscillation lithium powder itself, is relatively difficult to ensure card uniformity.Rich lithium amount is very monitoring also, uses the device in the method simultaneously, and can need increases the device that extra collection lithium powder disperses, and efficiency is low.
Because more difficult under current technical conditions, make continuous thin metal lithium bands, simultaneously because the mechanical performance of lithium metal is poor, is also difficult to realize thin lithium metal and invests on pole piece, if adopt the device of vacuum evaporation that lithium metal is invested on pole piece, the very low difficulty of vacuum evaporation equipment production efficiency meets large requirement of producing, the control precision that the equipment requirement of evaporation is very high simultaneously and more serious to the waste of lithium metal.
Utility model content
In view of the problem existing in background technology, the purpose of this utility model is to provide a kind of lithium ion battery negative electrode processing unit, and it can improve the uniformity of the rich lithium of cathode pole piece.
Another object of the present utility model is to provide a kind of lithium ion battery negative electrode processing unit, and it can meet the different rich lithium amount requirement of cathode pole piece.
Another object of the present utility model is to provide a kind of lithium ion battery negative electrode processing unit, and its cost is low, technique simply and easily realizes industrialized mass production.
To achieve these goals, the utility model provides a kind of lithium ion battery negative electrode processing unit, and it comprises: roller press mechanism, comprises pressure roller and back flow roll, for the pending cathode pole piece of roll-in, the surface of cathode pole piece is the cathode membrane that contains negative active core-shell material; Heating arrangements, comprises heating chamber, and heating chamber seals accommodating roller press mechanism, for heating cathode pole piece; Vacuum device, sealing is communicated in the heating chamber of heating arrangements, for the heating chamber to heating arrangements, vacuumizes; And lithium metal processing mechanism, be positioned at heating chamber and be positioned at the pressure roller of roller press mechanism and the right upstream of roll-in that back flow roll forms, comprise lithium metal shower nozzle, surface towards the cathode membrane of pending cathode pole piece, for liquid lithium being sprayed on to this surface of the cathode membrane of cathode pole piece, with anticathode pole piece before the pressure roller in roller press mechanism and back flow roll roll-in cathode pole piece, carry out rich lithium.
The beneficial effects of the utility model are as follows:
Employing due to heating chamber and vacuum extractor, realization vacuumizes environment, under this environment, lithium metal is melted, can avoid moisture and airborne oxidizing gas to react with lithium metal, the lithium metal melting is overlying in the cathode membrane of the cathode pole piece toasting in the heating chamber vacuumizing through colding pressing by the ejection of lithium metal shower nozzle again, because lithium metal is melting state, so be easy to drop in cathode membrane through shower nozzle ejection, improve thus the uniformity of the rich lithium of cathode pole piece;
Can select the shape of shower nozzle, the lithium spouting velocity of shower nozzle and the tape running speed of cathode pole piece according to the requirement of technique, meet different rich lithium demands;
The lithium using is for lithium metal ingot, with low cost;
Technique is simple, easily realizes industrialized mass production.
Accompanying drawing explanation
Fig. 1 is according to the schematic diagram of lithium ion battery negative electrode processing unit of the present utility model;
Fig. 2 is according to the schematic diagram of lithium metal shower nozzle one embodiment of the present utility model;
Fig. 3 is according to the schematic diagram of lithium metal shower nozzle one embodiment of the present utility model;
Fig. 4 is according to the schematic diagram of lithium metal shower nozzle one embodiment of the present utility model.
Wherein, description of reference numerals is as follows:
Embodiment
Describe in detail with reference to the accompanying drawings according to lithium ion battery negative electrode processing unit of the present utility model.
With reference to Fig. 1, according to lithium ion battery negative electrode processing unit of the present utility model, comprise: roller press mechanism 1, comprise pressure roller 11 and back flow roll 12, for the pending cathode pole piece P of roll-in, the surface of cathode pole piece P is the cathode membrane that contains negative active core-shell material; Heating arrangements 2, comprises heating chamber 21, and the accommodating roller press mechanism 1 of heating chamber 21 sealing, for heating cathode pole piece P; Vacuum device 3, sealing is communicated in the heating chamber 21 of heating arrangements 2, for the heating chamber 21 to heating arrangements 2, vacuumizes; And lithium metal processing mechanism 4, be positioned at heating chamber 21 and be positioned at the pressure roller 11 of roller press mechanism 1 and the right upstream of roll-in that back flow roll 12 forms, comprise lithium metal shower nozzle 41, surface towards the cathode membrane of pending cathode pole piece P, for liquid lithium being sprayed on to this surface of the cathode membrane of cathode pole piece, with anticathode pole piece P before the pressure roller 11 in roller press mechanism 1 and back flow roll 12 roll-in cathode pole piece P, carry out rich lithium.
First lithium ion battery negative electrode processing unit of the present utility model is sprayed on liquid lithium on cathode pole piece P by lithium metal shower nozzle 41, then by roller press mechanism 1, the cathode pole piece P that is coated with liquid lithium is carried out to roll-in, to realize the rich lithium process of cathode pole piece P.The heating chamber 21 vacuumizing can toast and the moisture of the cathode membrane of cathode pole piece P is removed by anticathode pole piece P, avoid moisture to react with lithium metal, lithium metal matter is soft simultaneously, be overlying on after cathode membrane, through roll-in, be easy to realization bonding with the cathode membrane of cathode pole piece P, the rich lithium of cathode membrane making is like this even, and technique is simple.In addition, due to the accommodating roller press mechanism 1 of heating chamber 21 sealing, pressure roller 11 and the back flow roll 12 of roller press mechanism 1 in the time of heating chamber 21 heating cathode pole piece P, have also been heated, while making the cathode pole piece P after pressure roller 11 and the rich lithium of back flow roll 12 roll-ins, cathode pole piece P(after pressure roller 11 and back flow roll 12 and rich lithium especially and the liquid lithium of spraying) between the temperature difference at place, roll-in contact site reduce, can reduce between them temperature gradient and the thermal stress of formation when roll-in contact.
In an embodiment of pressure roller 11 and back flow roll 12, one of pressure roller 11 and back flow roll 12 can be drive roll, and another in pressure roller 11 and back flow roll 12 can be driven voller.
In an embodiment of roller press mechanism 1, with reference to Fig. 1, roller press mechanism 1 also can comprise: unreel spool 13, be wound with pending cathode pole piece P on it; Unreel live-roller 14, for guiding and carrying from unreeling pending cathode pole piece P that spool 13 emits and carry out roll-in to pressure roller 11 and back flow roll 12; Rolling live-roller 15, for guiding and carry the cathode pole piece P after roll-in; And rolling spool 16, cathode pole piece P after roll-in and that rolling live-roller 15 is carried is carried out to rolling.By the adjusting of unwinding and rewinding speed, can realize the control of rich lithium amount.In one embodiment, with reference to Fig. 1, unreel live-roller 14 for a plurality of.In Fig. 1, rolling live-roller 15 is depicted as up-down rollers pair, certainly its roller for the side of taking off only; When adopt up-down rollers to time, rolling live-roller 15 not only can be realized rolling and transmit, and can realize the roll-in again after pressure roller 11 and back flow roll 12 anticathode pole piece P roll-ins.
In another embodiment of roller press mechanism 1, with reference to Fig. 1, roller press mechanism 1 also can comprise: unwinding tension dancer rools 17, is arranged at and unreels spool 13 and unreel between live-roller 14, for regulating from unreeling pending cathode pole piece P that spool 13 emits in the evenness of course of conveying.In one embodiment, roller press mechanism 1 also can comprise: winding tension dancer rools 18, is arranged at a side of the cathode pole piece P after roll-in, for regulating cathode pole piece P after roll-in in the evenness of course of conveying.In one embodiment, roller press mechanism 1 also can comprise: sense mechanism 19 is controlled in rolling correction, be arranged on rolling live-roller 15 sides and communicate by letter with the controlling organization (not shown) of rolling spool 16, sensing is carried out in the position of the cathode pole piece P carrying and the position signalling sensing is sent to the described controlling organization of rolling spool 16, so that the described controlling organization of rolling spool 16 is adjusted rolling spool 16(, regulate moving axially of rolling spool 16) carry out rolling correction.In one embodiment, rolling correction is controlled sense mechanism 19 and be can be infrared acquisition optical transmitting set.Described communication can connect or radio communication connects to realize by wire communication.
In an embodiment of heating arrangements 2, with reference to Fig. 1, heating arrangements 2 also can comprise: heating chamber vacuum sensor 22, is arranged in heating chamber 21, with the vacuum degree in sensing heating chamber 21; And heating chamber temperature sensor 23, be arranged in heating chamber 21, with the temperature in sensing heating chamber 21.
In an embodiment of vacuum device 3, with reference to Fig. 1, vacuum device 3 can comprise: vacuumize mechanical pump 31, the heating chamber 21 of heating arrangements 2 is vacuumized; The first pipeline 32, one end sealing is communicated in and vacuumizes mechanical pump 31 and other end sealing is communicated in the heating chamber 21 of heating arrangements 2; Vacuumize molecular pump 33, be arranged on the first pipeline 32 and vacuumize between mechanical pump 31 and with vacuumize mechanical pump 31 and be connected by second pipe 34, when the vacuum degree of the heating chamber 21 of heating arrangements 2 reaches set point, open, the heating chamber 21 of heating arrangements 2 is vacuumized; And unidirectional valve 35, be arranged on second pipe 34, to control the unlatching that vacuumizes molecular pump 33.
In an embodiment of lithium metal processing mechanism 4, with reference to Fig. 1, lithium metal processing mechanism 4 also can comprise: lithium metal heating container 42, accommodating and heating of metal lithium; And liquid lithium transfer conduit 43, one end connection metal lithium heating container 42 and one end connection metal lithium shower nozzle 41, to transfer to lithium metal shower nozzle 41 by the liquid lithium in lithium metal heating container 42.Liquid lithium after heating is easy to through 41 ejections of lithium metal shower nozzle, the lithium of ejection becomes after cooling solid-state, drop in the cathode membrane of tape transport at the uniform velocity, then by roller press mechanism 1, carry out cold roll-in (cold roll-in is herein with respect to liquid lithium residing hot environment in lithium metal heating container 42), be more conducive to the bonding of lithium metal and cathode membrane.
According in an embodiment of lithium ion battery negative electrode processing unit of the present utility model, lithium metal is lithium metal ingot.Lithium metal ingot is with low cost, only need to be by lithium metal melting in processing procedure, and technique is very simple, therefore very easily realizes industrialized mass production.
In an embodiment of lithium metal heating container 42, lithium metal heating container 42 can be resistance heating or infrared heating chamber.
In an embodiment of lithium metal processing mechanism 4, with reference to Fig. 1, lithium metal processing mechanism 4 also can comprise: liquid lithium discharging control valve 44, is arranged in liquid lithium transfer conduit 43, to control the transmission of liquid lithium.
In one embodiment, the hole that is shaped as shower nozzle of lithium metal shower nozzle 41 is along the direct of travel (being from left to right in Fig. 2) and direction (among Fig. 2 be the vertical direction of paper) upper distribute vertical with direct of travel of cathode pole piece P, with reference to Fig. 2, now the lithium of ejection is graininess.In one embodiment, the hole of shower nozzle is along the direction single arrangement vertical with the direct of travel (being from left to right in Fig. 3) of cathode pole piece P, and with reference to Fig. 3, now the lithium of ejection is wire.In one embodiment, the hole of shower nozzle comprises along the direction single aligned apertures vertical with the direct of travel of cathode pole piece P (in Fig. 4 for from left to right) and along the rectangular opening of the vertical direction of the direct of travel with cathode pole piece P (in Fig. 4 for from left to right), with reference to Fig. 4, the lithium that now cathode pole piece P forms is nettedly (to be staggered row's lithium of single row of holes in control chart 4 and single rectangular opening and to cold pressing and form afterwards, as for staggered row's lithium, can adopt and controlled baffle plate is set carries out lithium metal shower nozzle 41 is interior, certainly be not limited to this, those skilled in the art can adopt any suitable technology to realize).By the setting of difform lithium metal shower nozzle 41, can be according to the rich lithium requirement of the difference of cathode pole piece P, select the tape running speed of the shape of different lithium metal shower nozzles 41, the lithium spouting velocity of shower nozzle and cathode pole piece P, thereby reach the rich lithium amount of the difference requirement of cathode pole piece P.Here remark additionally, Fig. 2 to Fig. 4 is the plane graph of outwards seeing from shower nozzle 41 inside.
In an embodiment of lithium metal processing mechanism 4, with reference to Fig. 1, lithium metal processing mechanism 4 also can comprise: lithium metal liquid level sensor 45, is arranged in lithium metal heating container 42, with the liquid level of the lithium metal in sensing lithium metal heating container 42; And lithium metal temperature sensor 46, be arranged in lithium metal heating container 42, with the temperature of the lithium metal in sensing lithium metal heating container 42.
Below simply introduce according to the operation of lithium ion battery negative electrode processing unit of the present utility model.With reference to Fig. 2, with the hole that is shaped as shower nozzle of lithium metal shower nozzle 41, along the direct of travel of cathode pole piece P, be distributed as example with in the direction vertical with direct of travel, the lithium now being sprayed by shower nozzle is graininess.
With reference to Fig. 1, the cathode pole piece P of lithium to be mended is positioned over and unreels spool 13, pass successively unwinding tension dancer rools 17, unreel live-roller 13, pressure roller 11 is controlled sense mechanism 19, winding tension dancer rools 18, rolling live-roller 15 and rolling spool 16 with back flow roll 12, rolling correction.Cathode pole piece P after as above fixing, open heating chamber 21 start heating with anticathode pole piece P, toast, Baking out is sent to signal to vacuumize mechanical pump 31 to heating chamber temperature sensor 23 after predefined temperature, vacuumizing the first pipeline 32 that mechanical pump 31 starts by being attached thereto vacuumizes heating chamber 21, vacuum values reach vacuumize molecular pump 33 open require after unidirectional valve 35 with vacuumize molecular pump 33 and open simultaneously heating chamber 21 is vacuumized, when when the vacuum degree in the heating chamber 21 that heating chamber vacuum sensor 22 senses reaches set point, the baking of cathode pole piece P has reached requirement, opening metal lithium heating container 42 infrared heating lithium metals, lithium metal temperature sensor 46 reaches after predefined temperature requirement, lithium metal is by lithium metal heating container 42, liquid lithium transfer conduit 43, liquid lithium discharging control valve 44 and 41 ejections of lithium metal shower nozzle, now roller press mechanism 1 is started working, granular lithium metal is overlying on the cathode membrane of the cathode pole piece P of tape transport, through pressure roller 11 and back flow roll 12 roll-ins, realize the rich lithium of cathode membrane.
Claims (10)
1. a lithium ion battery negative electrode processing unit, is characterized in that, comprising:
Roller press mechanism (1), comprises pressure roller (11) and back flow roll (12), and for the pending cathode pole piece of roll-in (P), the surface of cathode pole piece (P) is the cathode membrane that contains negative active core-shell material;
Heating arrangements (2), comprises heating chamber (21), and heating chamber (21) seals accommodating roller press mechanism (1), for heating cathode pole piece (P);
Vacuum device (3), sealing is communicated in the heating chamber (21) of heating arrangements (2), for the heating chamber of heating arrangements (2) (21) is vacuumized; And
Lithium metal processing mechanism (4), be positioned at heating chamber (21) and be positioned at the pressure roller (11) of roller press mechanism (1) and the right upstream of roll-in that back flow roll (12) forms, comprise lithium metal shower nozzle (41), surface towards the cathode membrane of pending cathode pole piece (P), for liquid lithium being sprayed on to this surface of the cathode membrane of cathode pole piece (P), with the pressure roller in roller press mechanism (1) (11) and the front anticathode pole piece of back flow roll (12) roll-in cathode pole piece (P) (P), carry out rich lithium.
2. lithium ion battery negative electrode processing unit according to claim 1, is characterized in that, roller press mechanism (1) also comprises:
Unreel spool (13), on it, be wound with pending cathode pole piece (P);
Unreel live-roller (14), for guiding and carrying from unreeling pending cathode pole piece (P) to the pressure roller (11) and back flow roll (12) that spool (13) emits and carry out roll-in;
Rolling live-roller (15), for guiding and carry the cathode pole piece (P) after roll-in; And
Rolling spool (16), carries out rolling by cathode pole piece (P) after roll-in and that rolling live-roller (15) is carried.
3. lithium ion battery negative electrode processing unit according to claim 2, is characterized in that, roller press mechanism (1) also comprises:
Unwinding tension dancer rools (17), is arranged at and unreels spool (13) and unreel between live-roller (14), for regulating from unreeling pending cathode pole piece (P) that spool (13) emits in the evenness of course of conveying;
Winding tension dancer rools (18), is arranged at a side of the cathode pole piece (P) after roll-in, for regulating cathode pole piece (P) after roll-in in the evenness of course of conveying.
4. lithium ion battery negative electrode processing unit according to claim 2, is characterized in that, roller press mechanism (1) also comprises:
Rolling correction sense mechanism (19), be arranged on rolling live-roller (15) side and communicate by letter with the controlling organization of rolling spool (16), sensing is carried out in the position of the cathode pole piece (P) of carrying and the signal sensing is sent to the controlling organization of rolling spool (16), so that adjusting rolling spool (16), the controlling organization of rolling spool (16) carries out rolling correction.
5. lithium ion battery negative electrode processing unit according to claim 1, is characterized in that, heating arrangements (2) also comprises:
Heating chamber vacuum sensor (22), is arranged in heating chamber (21), with the vacuum degree in sensing heating chamber (21); And
Heating chamber temperature sensor (23), is arranged in heating chamber (21), with the temperature in sensing heating chamber (21).
6. lithium ion battery negative electrode processing unit according to claim 1, is characterized in that, vacuum device (3) comprising:
Vacuumize mechanical pump (31), the heating chamber of heating arrangements (2) (21) is vacuumized;
The first pipeline (32), one end sealing is communicated in and vacuumizes mechanical pump (31) and other end sealing is communicated in the heating chamber (21) of heating arrangements (2);
Vacuumize molecular pump (33), be arranged on the first pipeline (32) and vacuumize between mechanical pump (31) and with vacuumize mechanical pump (31) and be connected by second pipe (34), when the vacuum degree of the heating chamber (21) of heating arrangements (2) reaches set point, open, the heating chamber of heating arrangements (2) (21) is vacuumized; And
Unidirectional valve (35), is arranged on second pipe (34) upper, to control the unlatching that vacuumizes molecular pump (33).
7. lithium ion battery negative electrode processing unit according to claim 1, is characterized in that, lithium metal processing mechanism (4) also comprises:
Lithium metal heating container (42), accommodating and heating of metal lithium; And
Liquid lithium transfer conduit (43), one end connection metal lithium heating container (42) and one end connection metal lithium shower nozzle (41), to transfer to lithium metal shower nozzle (41) by the liquid lithium in lithium metal heating container (42).
8. lithium ion battery negative electrode processing unit according to claim 6, is characterized in that, lithium metal processing mechanism (4) also comprises:
Liquid lithium discharging control valve (44), is arranged at liquid lithium transfer conduit (43) upper, to control the transmission of liquid lithium.
9. lithium ion battery negative electrode processing unit according to claim 1, it is characterized in that, the hole that is shaped as shower nozzle of lithium metal shower nozzle (41) along the direct of travel of cathode pole piece (P) distribute with in the direction vertical with direct of travel, the hole of shower nozzle is along the direction single arrangement vertical with the direct of travel of cathode pole piece (P), or the hole of shower nozzle comprises along the direction single aligned apertures vertical with the direct of travel of cathode pole piece (P) and along the rectangular opening of the direction vertical with the direct of travel of cathode pole piece (P).
10. lithium ion battery negative electrode processing unit according to claim 6, is characterized in that, lithium metal processing mechanism (4) also comprises:
Lithium metal liquid level sensor (45), is arranged in lithium metal heating container (42), with the liquid level of the lithium metal in sensing lithium metal heating container (42); And
Lithium metal temperature sensor (46), is arranged in lithium metal heating chamber (21), with the temperature of the lithium metal in sensing lithium metal heating container (42).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547863.1U CN203415654U (en) | 2013-09-04 | 2013-09-04 | Cathode pole piece treatment device for lithium ion battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320547863.1U CN203415654U (en) | 2013-09-04 | 2013-09-04 | Cathode pole piece treatment device for lithium ion battery |
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| Publication Number | Publication Date |
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| CN203415654U true CN203415654U (en) | 2014-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320547863.1U Expired - Lifetime CN203415654U (en) | 2013-09-04 | 2013-09-04 | Cathode pole piece treatment device for lithium ion battery |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104001720A (en) * | 2014-06-12 | 2014-08-27 | 宁德新能源科技有限公司 | Roll-in device |
| CN105449165A (en) * | 2014-06-05 | 2016-03-30 | 宁德新能源科技有限公司 | Lithium ion battery lithium-rich electrode piece and preparation method thereof |
| CN110444737A (en) * | 2019-09-12 | 2019-11-12 | 溧阳聚阳智能科技有限公司 | Mend lithium device and production line for manufacturing battery |
| WO2020108503A1 (en) * | 2018-11-27 | 2020-06-04 | 北京卫蓝新能源科技有限公司 | System for preparing electrode having high cycle efficiency, method for preparing electrode having high cycle efficiency, and application thereof |
| CN112086623A (en) * | 2020-09-04 | 2020-12-15 | 捷威动力工业嘉兴有限公司 | Device for preparing three-dimensional lithium metal cathode |
| CN113540406A (en) * | 2021-06-28 | 2021-10-22 | 万向一二三股份公司 | Lithium film for lithium supplement of negative electrode and preparation device, preparation method and application thereof |
-
2013
- 2013-09-04 CN CN201320547863.1U patent/CN203415654U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105449165A (en) * | 2014-06-05 | 2016-03-30 | 宁德新能源科技有限公司 | Lithium ion battery lithium-rich electrode piece and preparation method thereof |
| CN105449165B (en) * | 2014-06-05 | 2018-01-02 | 宁德新能源科技有限公司 | - rich pole piece of lithium ion battery and preparation method thereof |
| CN104001720A (en) * | 2014-06-12 | 2014-08-27 | 宁德新能源科技有限公司 | Roll-in device |
| CN104001720B (en) * | 2014-06-12 | 2016-04-06 | 宁德新能源科技有限公司 | rolling device |
| WO2020108503A1 (en) * | 2018-11-27 | 2020-06-04 | 北京卫蓝新能源科技有限公司 | System for preparing electrode having high cycle efficiency, method for preparing electrode having high cycle efficiency, and application thereof |
| CN110444737A (en) * | 2019-09-12 | 2019-11-12 | 溧阳聚阳智能科技有限公司 | Mend lithium device and production line for manufacturing battery |
| CN112086623A (en) * | 2020-09-04 | 2020-12-15 | 捷威动力工业嘉兴有限公司 | Device for preparing three-dimensional lithium metal cathode |
| CN113540406A (en) * | 2021-06-28 | 2021-10-22 | 万向一二三股份公司 | Lithium film for lithium supplement of negative electrode and preparation device, preparation method and application thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140129 |