CN105202882A - Pole piece drying device - Google Patents
Pole piece drying device Download PDFInfo
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- CN105202882A CN105202882A CN201410261853.0A CN201410261853A CN105202882A CN 105202882 A CN105202882 A CN 105202882A CN 201410261853 A CN201410261853 A CN 201410261853A CN 105202882 A CN105202882 A CN 105202882A
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- pole piece
- microwave
- dried
- drying device
- metal cabinet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The invention provides a pole piece drying device which comprises an unreeling mechanism providing, conveying and grounding pole pieces to be dried, a reeling mechanism used for reeling and grounding the dried pole pieces and a microwave baking mechanism arranged between the unreeling mechanism and the reeling mechanism. The microwave baking mechanism comprises a metal box which is grounded and provided with an inlet and an outlet opposite to the inlet, an inner insulation layer attached to the inner wall of the metal box in a covering mode, a microwave generator arranged outside the metal box, a microwave conducting pipe, a microwave absorbing assembly, an air outlet, a hot air pipe, an air inlet and a water removing device. The microwave generator and the metal box are connected through the microwave conducting pipe, and the microwave conducting pipe guides microwaves generated by the microwave generator into the metal box to bake the pole pieces to be dried. The microwave absorbing assembly is arranged at an outlet of the metal box or close to the outlet. The air outlet is formed in one side wall of the metal box. One end of the hot air pipe is connected with the air outlet. The air inlet is formed in one side wall of the metal box and connected with the other end of the hot air pipe. The water removing device is arranged on the hot air pipe and located on the upstream of the air inlet.
Description
Technical field
The present invention relates to a kind of pole piece treating apparatus, particularly relate to a kind of pole piece drying device.
Background technology
Since Sony corporation of Japan realizes commercialization to lithium ion battery material, lithium ion battery because its quality is light, voltage is high, volume is little, memory-less effect, specific energy are high, have extended cycle life, the plurality of advantages such as environmental friendliness, and apply in portable type electronic product fields such as Portable power source, mobile phone, portable computer, camera and video cameras rapidly, and occupy critical positions at energy field.
Along with the application of lithium ion battery and the continuous expansion of use amount, more and more higher requirement is proposed for lithium-ion battery system and production process.The system material that conventional lithium ion battery is used adopts hydrophobic material, carries out baking dewater after winding to naked battery core, and operation is be interrupted, production efficiency is low.If but baking dewatering process there will be again a lot of limiting factors before adopting winding, as the inconsistent of the bounce-back of pole piece between each layer of coiled strip and moisture can be caused in coiled strip bake process, difference is very large, and the internal layer fold simultaneously caused due to the bounce-back of pole piece is also inevitable.Although if adopt uncoiling conventional heating to dewater and can avoid the problems referred to above, Chinese patent application publication No. as announced on May 18th, 2011 be CN102059214A patent document discloses a kind of coating drying technology and device thereof, its mode adopting vacuum uncoiling to toast dewaters, but moisture out slowly and also production efficiency low, especially for new system material as the material by bonding polypropylene agent (PA) system.
Therefore need to develop a kind of quick heating water-eliminating method out of moisture that can allow while uncoiling.Microwave baking can make hydrone self-heating and by pole piece to external diffusion, thus reach the object that quick baking dewaters.Water and electrode material, as graphite, are all excellent absorption microwave materials, but the metal collector in pole piece can produce local current in microwave (electromagnetic wave of high frequency); The generation of high-frequency discharge may be caused in addition because there is burr, thus limit the application of microwave in baking pole piece dewaters.
Summary of the invention
In view of Problems existing in background technology, the object of the present invention is to provide a kind of pole piece drying device, it can toast pole piece fast, efficiently, evenly and safely and dewater.
To achieve these goals, the invention provides a kind of pole piece drying device, pole piece comprises collector and is arranged on the active material layer containing active material on the surface of collector, described pole piece drying device comprises: unreeling structure, provides and carries pole piece to be dried and make the collector ground connection of pole piece to be dried; Rolling-up mechanism, carries out rolling by dried pole piece and makes the collector ground connection of dried pole piece; And microwave baking mechanism, be arranged between unreeling structure and rolling-up mechanism.Wherein, microwave baking mechanism comprises: metal cabinet, ground connection and have entrance that relative confession pole piece to be dried enters and for the outlet out of dried pole piece; Inner insulating layer, is covered in the inwall of metal cabinet; Microwave generator, is arranged at metal cabinet outside, produces microwave; Micro waveguide wave duct, connects microwave generator and metal cabinet, and it is inner that the microwave produced by microwave generator imports metal cabinet, to toast pole piece to be dried, to obtain dried pole piece; Microwave absorption assembly, is arranged on the outlet of metal cabinet or close outlet, absorbs unnecessary microwave; Gas outlet, is arranged at a sidewall of metal cabinet; Heating pipe, connection gas outlet, one end; Air inlet, is arranged at a sidewall of metal cabinet, connects the other end of heating pipe; And dehydrater, to be arranged on heating pipe and to be positioned at the upstream of air inlet, absorbing the moisture of gas in heating pipe.
Beneficial effect of the present invention is as follows:
Pole piece drying device of the present invention adopts the mode of microwave baking can make moisture from pole piece inside rapidly to external diffusion, the mode of simultaneously uncoiling drying can efficiently, quantitative, uniformly drying is carried out to pole piece, and this device can prevent the generation of high-frequency discharge, thus the object that heating using microwave pole piece dewaters can be realized safely, simple, with low cost, relatively low to environmental requirement, the energy-conserving and environment-protective of this apparatus structure in addition, easily realize industrialized mass production.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment according to pole piece drying device of the present invention;
Fig. 2 is the structural representation of another embodiment according to pole piece drying device of the present invention;
Fig. 3 is a simplification view of the pole piece drying device in Fig. 2, and the microwave absorption assembly that the Way out from unreeling structure to metal cabinet is observed and metal cabinet are wherein only shown;
Fig. 4 is the simplification view that the rightabout in Fig. 3 is seen, the metal cabinet that rolling-up mechanism is observed to the Way out of metal cabinet is wherein only shown.
Wherein, description of reference numerals is as follows:
1 unreeling structure 312 exports
11 unreel spool 32 inner insulating layer
12 unreel grounding shaft 33 microwave generator
13 unreel the axis of guide 34 micro waveguide wave duct
2 rolling-up mechanism 35 microwave absorption assemblies
21 collection reel 36 gas outlets
22 rolling grounding shaft 37 heating pipes
The 23 rolling axis of guide 38 air inlets
3 microwave baking mechanism 39 dehydraters
31 metal cabinet P pole pieces
311 entrances
Detailed description of the invention
Describe in detail with reference to the accompanying drawings according to pole piece drying device of the present invention.
Referring to figs. 1 through Fig. 2, pole piece P comprises collector and is arranged on the active material layer containing active material on the surface of collector, pole piece drying device according to the present invention comprises: unreeling structure 1, provides and carries pole piece P to be dried and make the collector ground connection of pole piece P to be dried; Rolling-up mechanism 2, carries out rolling by dried pole piece P and makes the collector ground connection of dried pole piece P; And microwave baking mechanism 3, be arranged between unreeling structure 1 and rolling-up mechanism 2.Microwave baking mechanism 3 comprises: metal cabinet 31, ground connection and have entrance 311 that relative confession pole piece P to be dried enters and for dried pole piece P outlet 312 out; Inner insulating layer 32, is covered in the inwall of metal cabinet 31; Microwave generator 33, is arranged at metal cabinet 31 outside, produces microwave; Micro waveguide wave duct 34, connects microwave generator 33 and metal cabinet 31, and it is inner that the microwave produced by microwave generator 33 imports metal cabinet 31, to toast pole piece P to be dried, to obtain dried pole piece P; Microwave absorption assembly 35, is arranged on the outlet 312 of metal cabinet 31 or close outlet 312, absorbs unnecessary microwave; Gas outlet 36, is arranged at a sidewall of metal cabinet 31; Heating pipe 37, connection gas outlet, one end 36; Air inlet 38, is arranged at a sidewall of metal cabinet 31, connects the other end of heating pipe 37; And dehydrater 39, to be arranged on heating pipe 37 and to be positioned at the upstream of air inlet 38, absorbing the moisture of gas in heating pipe 37.
Here it should be noted that, pole piece P to be dried refers to the pole piece containing moisture, the pole piece namely containing moisture in active material layer.Here moisture can be Free water, also can be the crystallization water.Under the condition of microwave baking, moisture absorption microwave in pole piece P, thus occur vibrate and produce a large amount of heat, the active material on pole piece P is absorption portion microwave also, make the moisture vaporization in pole piece P, the moisture therefore in pole piece P under thermal gradient by pole piece P to outer rapid diffusion.In addition, the mode of common baking generally only can remove the Free water in pole piece, but the mode of microwave baking can also remove the crystallization water in pole piece.On the other hand, because pole piece can not bear very high temperature (mainly because binding agent wherein at very high temperatures can ageing failure), therefore in pole piece drying device according to the present invention, the temperature in metal cabinet 31 can be 60 DEG C ~ 140 DEG C, is preferably 70 DEG C ~ 100 DEG C.
Wherein, microwave is hedged off from the outer world by metal cabinet 31, and inner insulating layer 32 is gas-insulated by metal cabinet 31 and box house, thus, avoids sparking problem.
Unreeling structure 1, rolling-up mechanism 2 and metal cabinet 31 be ground connection all, under ensure that metal cabinet 31 and the collector of pole piece P are in same potential state, avoids the sparking problem caused because voltage difference produces local current.
Microwave absorption assembly 35 for absorbing unnecessary microwave, unnecessary microwave such as microwave reflection and unloaded microwave.Microwave absorption assembly 35 be arranged on the outlet 312 of metal cabinet 31 or be near the reason of outlet 312, microwave absorption assembly 35 produces certain heat while absorbing unnecessary microwave, thus guarantee fund can be beneficial to belong to temperature in casing 31, thus farthest pole piece P toasted and dewater.
The gas of metal cabinet 31 inside can be carried out circulating-heating, dewater by pole piece drying device of the present invention.Described gas by the path in upstream to downstream is: metal cabinet 31 inside-gas outlet 36-heating pipe 37-dehydrater 39-air inlet 38-metal cabinet 31 is inner, particularly, with reference to Fig. 1, microwave generator 33 produces microwave, metal cabinet 31 is imported inner by micro waveguide wave duct 34, act on the pole piece P of tape transport (being in unwinding winding process), moisture vaporization in pole piece P, rapidly from pole piece P to the outside rapid diffusion of pole piece P, unnecessary microwave reflection and unloaded microwave are absorbed by microwave absorption assembly 35, cause unnecessary sparking to produce certain heat to prevent unnecessary microwave simultaneously, ensure the temperature of pole piece bake process, dehydrater 39 is arranged at the upstream of air inlet 38, the gas being about to get back to through air inlet 38 metal cabinet 31 inside is dewatered, ensure the dry mass of the pole piece P of metal cabinet 31 inside, avoid the sparking problem that unnecessary moisture remnants cause the existence of conductive ion in air to cause simultaneously.
Pole piece drying device of the present invention adopts the mode of microwave baking can make moisture from pole piece inside rapidly to external diffusion, the mode of simultaneously uncoiling can efficiently, quantitative, uniformly drying is carried out to pole piece, and structure is simple, with low cost, relatively low to environmental requirement, energy-conserving and environment-protective, easily realize industrialized mass production.
In an embodiment of pole piece drying device according to the present invention, with reference to Fig. 1, gas outlet 36 and air inlet 38 are arranged on the relative sidewall of two of metal cabinet 31, but in reality, be not limited thereto, as long as the gas path that the gas of metal cabinet 31 inside can be carried out circulating-heating, dewaters can be ensured.
In an embodiment of unreeling structure 1, with reference to Fig. 1, unreeling structure 1 can comprise: unreel spool 11, it is wound with pole piece P to be dried; And unreel grounding shaft 12, be positioned at the downstream that unreels spool 11 and make the collector ground connection of pole piece P to be dried.Particularly, along the direct of travel (namely from unreeling structure 1 to the direction of rolling-up mechanism 2) of pole piece P for upstream is to downstream.
In another embodiment of unreeling structure 1, with reference to Fig. 1, unreeling structure 1 also can comprise: unreel the axis of guide 13, is positioned at the downstream unreeling spool 11, for carrying out guiding and carrying to microwave baking mechanism 3 by from the pole piece P to be dried unreeling spool 11 releasing.
It should be noted that, in FIG, adopt the grounding shaft 12 that unreels of metal material to have good contact with pole piece P, when unreeling grounding shaft 12 ground connection, the collector of pole piece P is also equivalent to ground connection.Certainly be not limited thereto, also can save and unreel grounding shaft 12, and directly will unreel spool 11 or unreel the axis of guide 13 ground connection.The roll shaft of the metal material namely contacted with pole piece P all can adopt grounding, to make the collector ground connection of pole piece P.
In an embodiment of rolling-up mechanism 2, with reference to Fig. 1, rolling-up mechanism 2 can comprise: collection reel 21, and the dried pole piece P of conveying is carried out rolling; And rolling grounding shaft 22, be positioned at the upstream of collection reel 21 and make the collector ground connection of dried pole piece P.Particularly, the direct of travel along pole piece P is that upstream is to downstream.It should be noted that, in FIG, adopt the rolling grounding shaft 22 of metal material to have good contact with pole piece P, when rolling grounding shaft 22 ground connection, the collector of pole piece P is also equivalent to ground connection.Certainly be not limited thereto, also can save rolling grounding shaft 22, and directly by collection reel 21 or the rolling axis of guide 23 ground connection.
In another embodiment of rolling-up mechanism 2, with reference to Fig. 1, rolling-up mechanism 2 also can comprise: the rolling axis of guide 23, is positioned at the upstream of collection reel 21, for being carried out guiding and carrying to collection reel 21 by the dried pole piece P after microwave baking mechanism 3.
It should be noted that, in FIG, adopt the rolling grounding shaft 22 of metal material to have good contact with pole piece P, when rolling grounding shaft 22 ground connection, the collector of pole piece P is also equivalent to ground connection.Certainly be not limited thereto, also can save rolling grounding shaft 22, and directly by collection reel 21 or the rolling axis of guide 23 ground connection.
In an embodiment of pole piece drying device according to the present invention, the inner insulating layer 32 of microwave baking mechanism 3 can adopt Teflon (Teflon) material.
In an embodiment of microwave absorption assembly 35, microwave absorption assembly 35 can be the material absorbing microwave.
In an embodiment of microwave absorption assembly 35, microwave absorption assembly 35 can be tubulose.In one embodiment, can be can through microwave and the tubular structure of the solvent of built-in absorption microwave for microwave absorption assembly 35.In another embodiment, microwave absorption assembly 35 can be inner ceramic hollow tubular construction of filling recirculated water.Certainly be not limited thereto, microwave absorption assembly 35 also can be tabular.
In an embodiment of pole piece drying device according to the present invention, as shown in Figure 1, heating pipe 37 can be arranged in microwave absorption assembly 35, thus can space be saved, and simultaneously can gas in heat hot tracheae 37, ensure the gas temperature in heating pipe 37, and then make the temperature in metal cabinet 31 be unlikely to very low.
In an embodiment of microwave absorption assembly 35, with reference to Fig. 2 to Fig. 4, microwave absorption assembly 35 is tabular, and is contained in metal cabinet 31, and has the opening 351 passed through for pole piece P.
In an embodiment of pole piece drying device according to the present invention, the metal cabinet 31 of microwave baking mechanism 3, gas outlet 36, heating pipe 37, air inlet 38 and dehydrater 39 outside are the metal material of inner surface through smooth treatment.Thus, can prevent from sparking and microwave leakage operationally occur.
In an embodiment of pole piece drying device according to the present invention, the entrance 311 of microwave baking mechanism 3 and outlet 312 are all provided with the structure of anti-microwave leakage.
In an embodiment of pole piece drying device according to the present invention, in the metal cabinet 31 of microwave baking mechanism 3, pole piece P is unsettled and by the air supporting in microwave baking mechanism 3, or pole piece P is supported by insulating supporting axle.Thus, ensure that pole piece P is in formation state.
In an embodiment of gas outlet 36, see figures.1.and.2, gas outlet 36 can near outlet 312.
In an embodiment of air inlet 38, see figures.1.and.2, air inlet 38 can near entrance 311.
In an embodiment of dehydrater 39, dehydrater 39 can adopt the mode of vacuumizing to dewater; In another embodiment, dewater by the mode such as molecular sieve, inorganic deicer.
Employing vacuumizes mode and dewaters and make structure of the present invention simpler.
Claims (10)
1. a pole piece drying device, pole piece (P) comprises collector and is arranged on the active material layer containing active material on the surface of collector, and described pole piece drying device comprises:
Unreeling structure (1), provides and carries pole piece (P) to be dried and make the collector ground connection of pole piece (P) to be dried;
Rolling-up mechanism (2), carries out rolling by dried pole piece (P) and makes the collector ground connection of dried pole piece (P); And
Microwave baking mechanism (3), is arranged between unreeling structure (1) and rolling-up mechanism (2);
It is characterized in that, microwave baking mechanism (3) comprising:
Metal cabinet (31), ground connection and there is entrance (311) that relative confession pole piece to be dried (P) enters and for dried pole piece (P) outlet out (312);
Inner insulating layer (32), is covered in the inwall of metal cabinet (31);
Microwave generator (33), is arranged at metal cabinet (31) outside, produces microwave;
Micro waveguide wave duct (34), connect microwave generator (33) and metal cabinet (31), it is inner that the microwave produced by microwave generator (33) imports metal cabinet (31), to toast pole piece (P) to be dried, to obtain dried pole piece (P);
Microwave absorption assembly (35), is arranged on the outlet (312) of metal cabinet (31) or close outlet (312), absorbs unnecessary microwave;
Gas outlet (36), is arranged at a sidewall of metal cabinet (31);
Heating pipe (37), connection gas outlet, one end (36);
Air inlet (38), is arranged at a sidewall of metal cabinet (31), connects the other end of heating pipe (37); And
Dehydrater (39), is arranged at heating pipe (37) and goes up and be positioned at the upstream of air inlet (38), absorbs the moisture of gas in heating pipe (37).
2. pole piece drying device according to claim 1, is characterized in that, unreeling structure (1) comprising:
Unreel spool (11), it is wound with pole piece (P) to be dried;
Unreel grounding shaft (12), be positioned at the downstream that unreels spool (11) and make the collector ground connection of pole piece (P) to be dried; And
Unreel the axis of guide (13), be positioned at the downstream unreeling spool (11), for carrying out guiding and carrying to microwave baking mechanism (3) by from the pole piece (P) to be dried unreeling spool (11) releasing.
3. pole piece drying device according to claim 1, is characterized in that, rolling-up mechanism (2) comprising:
Collection reel (21), carries out rolling by the dried pole piece (P) of conveying;
Rolling grounding shaft (22), is positioned at the upstream of collection reel (21) and makes the collector ground connection of dried pole piece (P); And
The rolling axis of guide (23), is positioned at the upstream of collection reel (21), for being carried out guiding and carrying to collection reel (21) by the dried pole piece (P) after microwave baking mechanism (3).
4. pole piece drying device according to claim 1, is characterized in that, the temperature in metal cabinet (31) is 60 DEG C ~ 140 DEG C, is preferably 70 DEG C ~ 100 DEG C.
5. pole piece drying device according to claim 1, is characterized in that, the inner insulating layer (32) of microwave baking mechanism (3) adopts Teflon material.
6. pole piece drying device according to claim 1, is characterized in that, microwave absorption assembly (35) is tubulose or tabular.
7. pole piece drying device according to claim 6, is characterized in that, microwave absorption assembly (35) is can through microwave and the tubular structure of the solvent of built-in absorption microwave; Preferably, microwave absorption assembly (35) is inner ceramic hollow tubular construction of filling recirculated water.
8. pole piece drying device according to claim 1, is characterized in that, heating pipe (37) is arranged in microwave absorption assembly (35).
9. pole piece drying device according to claim 6, is characterized in that, microwave absorption assembly (35) is tabular, and is contained in metal cabinet (31), and has the opening (351) passed through for pole piece (P).
10. pole piece drying device according to claim 1, it is characterized in that, in the metal cabinet (31) of microwave baking mechanism (3), pole piece (P) is for unsettled and by the air supporting in microwave baking mechanism (3), or pole piece (P) is supported by insulating supporting axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261853.0A CN105202882B (en) | 2014-06-13 | 2014-06-13 | pole piece drying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410261853.0A CN105202882B (en) | 2014-06-13 | 2014-06-13 | pole piece drying device |
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| CN105202882A true CN105202882A (en) | 2015-12-30 |
| CN105202882B CN105202882B (en) | 2017-06-13 |
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| CN201410261853.0A Active CN105202882B (en) | 2014-06-13 | 2014-06-13 | pole piece drying device |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946539A (en) * | 2017-11-09 | 2018-04-20 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | It is coated with drying equipment |
| CN109682189A (en) * | 2018-12-27 | 2019-04-26 | 北京卫蓝新能源科技有限公司 | A kind of pole piece infrared drying apparatus |
| CN110400905A (en) * | 2019-06-14 | 2019-11-01 | 江西力能新能源科技有限公司 | A kind of pole piece containing solid electrolyte and preparation method thereof and application |
| CN110586556A (en) * | 2019-07-26 | 2019-12-20 | 新乡市阳光电源制造有限公司 | Metal foil cleaning equipment and method for lithium battery |
| CN110953865A (en) * | 2018-09-26 | 2020-04-03 | 北京卫蓝新能源科技有限公司 | Diaphragm drying device and method thereof |
| CN113357878A (en) * | 2021-05-31 | 2021-09-07 | 浙江超恒动力科技有限公司 | Battery cell dewatering method |
| CN115325807A (en) * | 2022-07-29 | 2022-11-11 | 广东利元亨智能装备股份有限公司 | Pole piece drying device |
| CN115837345A (en) * | 2022-11-29 | 2023-03-24 | 湖北亿纬动力有限公司 | Drying device and pole piece drying system |
| CN116213218A (en) * | 2023-01-31 | 2023-06-06 | 广东利元亨智能装备股份有限公司 | Pole piece fixing device, pole piece drying equipment and pole piece drying method |
| WO2023151147A1 (en) * | 2022-02-08 | 2023-08-17 | 宁德时代新能源科技股份有限公司 | Drying apparatus and electrode sheet drying device |
| WO2024060084A1 (en) * | 2022-09-21 | 2024-03-28 | 宁德时代新能源科技股份有限公司 | Material transportation carrier, carrying apparatus, drying system, and control method |
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| EP0071123B1 (en) * | 1981-07-31 | 1985-10-02 | Agfa-Gevaert AG | Microwave device for warming and/or drying flat materials passing through the device |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946539A (en) * | 2017-11-09 | 2018-04-20 | 广东顺德工业设计研究院(广东顺德创新设计研究院) | It is coated with drying equipment |
| CN110953865A (en) * | 2018-09-26 | 2020-04-03 | 北京卫蓝新能源科技有限公司 | Diaphragm drying device and method thereof |
| CN109682189A (en) * | 2018-12-27 | 2019-04-26 | 北京卫蓝新能源科技有限公司 | A kind of pole piece infrared drying apparatus |
| CN110400905A (en) * | 2019-06-14 | 2019-11-01 | 江西力能新能源科技有限公司 | A kind of pole piece containing solid electrolyte and preparation method thereof and application |
| CN110586556A (en) * | 2019-07-26 | 2019-12-20 | 新乡市阳光电源制造有限公司 | Metal foil cleaning equipment and method for lithium battery |
| CN113357878A (en) * | 2021-05-31 | 2021-09-07 | 浙江超恒动力科技有限公司 | Battery cell dewatering method |
| CN113357878B (en) * | 2021-05-31 | 2022-05-24 | 浙江超恒动力科技有限公司 | Battery cell dewatering method |
| WO2023151147A1 (en) * | 2022-02-08 | 2023-08-17 | 宁德时代新能源科技股份有限公司 | Drying apparatus and electrode sheet drying device |
| CN115325807A (en) * | 2022-07-29 | 2022-11-11 | 广东利元亨智能装备股份有限公司 | Pole piece drying device |
| WO2024060084A1 (en) * | 2022-09-21 | 2024-03-28 | 宁德时代新能源科技股份有限公司 | Material transportation carrier, carrying apparatus, drying system, and control method |
| CN115837345A (en) * | 2022-11-29 | 2023-03-24 | 湖北亿纬动力有限公司 | Drying device and pole piece drying system |
| CN116213218A (en) * | 2023-01-31 | 2023-06-06 | 广东利元亨智能装备股份有限公司 | Pole piece fixing device, pole piece drying equipment and pole piece drying method |
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| CN105202882B (en) | 2017-06-13 |
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