WO2023015814A1 - Battery electrode processing device and method - Google Patents

Battery electrode processing device and method Download PDF

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WO2023015814A1
WO2023015814A1 PCT/CN2021/140428 CN2021140428W WO2023015814A1 WO 2023015814 A1 WO2023015814 A1 WO 2023015814A1 CN 2021140428 W CN2021140428 W CN 2021140428W WO 2023015814 A1 WO2023015814 A1 WO 2023015814A1
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battery electrode
processing device
rolling
electrode processing
slurry
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PCT/CN2021/140428
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French (fr)
Chinese (zh)
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卢成壮
张瑞云
杨冠军
黄华
王菊
程健
白发琪
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中国华能集团清洁能源技术研究院有限公司
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Publication of WO2023015814A1 publication Critical patent/WO2023015814A1/en

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8875—Methods for shaping the electrode into free-standing bodies, like sheets, films or grids, e.g. moulding, hot-pressing, casting without support, extrusion without support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/86—Inert electrodes with catalytic activity, e.g. for fuel cells
    • H01M4/88—Processes of manufacture
    • H01M4/8878—Treatment steps after deposition of the catalytic active composition or after shaping of the electrode being free-standing body
    • H01M4/8896—Pressing, rolling, calendering
    • 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
    • Y02E60/30—Hydrogen technology
    • Y02E60/50—Fuel cells

Definitions

  • the present application relates to the technical field of battery processing, in particular to a battery electrode processing device and method.
  • Molten carbonate fuel cell is a high-temperature fuel cell power generation device. It has the advantages of high power generation efficiency, wide fuel source, no need for precious metals as catalysts, and can be combined with gas turbines to generate power. It is a technology with development potential.
  • Molten carbonate fuel cells are mainly composed of bipolar plates, electrodes, diaphragms (electrolytes), etc.
  • the bipolar plates are mainly composed of 316L stainless steel flow field plates and collector plates, the diaphragm is mainly composed of LiAlO 2 , and the electrodes are mainly Composed of porous nickel or nickel-chromium, nickel-aluminum, etc.
  • nickel electrodes are mainly prepared by casting, which can realize the preparation of electrodes with different areas.
  • the technical problem to be solved in this application is to overcome the defects in the prior art that the electrode thickness is not uniform and affect the assembly, so as to provide a battery electrode processing device and method with consistent and flat electrode thickness and high assembly efficiency.
  • a battery electrode processing device including:
  • the conveying mechanism is arranged sequentially through the storage mechanism, the heating mechanism and the rolling mechanism, so as to output the slurry output by the storage mechanism to the next process after being heated and rolled.
  • the rolling mechanism includes two sets of rolling structures correspondingly arranged up and down, and a slurry delivery space is formed between the two sets of rolling structures.
  • the rolling structure is a plurality of rolls distributed side by side, and the upper and lower sets of rolls are arranged in one-to-one correspondence.
  • the number of the rolls in each group is greater than 6.
  • a scraper provided at the outlet of the storage mechanism is also included.
  • a ventilation mechanism corresponding to the heating mechanism is also included.
  • the ventilation mechanism includes a vent and an exhaust fan arranged near the vent.
  • both the heating mechanism and the ventilation mechanism are arranged in a casing, the transmission mechanism is arranged through the casing, and the heating mechanism and the ventilation mechanism are respectively arranged on opposite sides of the transmission mechanism.
  • a battery electrode processing method comprising:
  • the heated slurry is rolled and sent to the next process.
  • the heating temperature is 60-65° C.
  • the humidity is 35-40%
  • the viscosity of the slurry is 2000-2500 cP.
  • the electrode slurry is heated and rolled in sequence before being transported to the next process.
  • the rolling mechanism applies a rolling force to the heated and dried electrode blank, so that the electrode blank in the thickness direction A certain plastic deformation is generated to achieve the consistency of size, and the electrode blank has high flatness, which can be effectively matched with other components, reducing the waste of resources.
  • the upper and lower sets of rolling structures apply rolling force to the heated electrode blank at the same time, the force is more uniform, and the consistency of thickness is further improved.
  • the battery electrode processing device provided in this application and the setting of the outlet scraper of the storage mechanism can control the initial thickness of the electrode blank to a certain extent.
  • the battery electrode processing device provided in this application, and the ventilation mechanism provided corresponding to the heating mechanism, ensure the temperature and humidity of the electrode blank during processing, and improve the yield.
  • FIG. 1 is a schematic diagram of a battery electrode processing device provided in the present application.
  • a specific embodiment of the battery electrode processing device shown in Figure 1 is used for the processing of molten carbonate fuel cell electrodes, the electrode slurry is mainly nickel and binder, nickel is carbonyl nickel powder, and the binder is Sodium carboxymethyl cellulose solution, the viscosity of the electrode slurry is 2000-2500cP, including a storage mechanism 1, a heating mechanism 2, a rolling mechanism 3 arranged in sequence along the conveying direction of the slurry 8, and sequentially passing through the storage mechanism 1 , The transmission mechanism that the heating mechanism 2 and the rolling mechanism 3 are provided with.
  • the storage mechanism 1 , the heating mechanism 2 , the rolling mechanism 3 and the transmission mechanism are all arranged on a frame body 4 .
  • the transmission mechanism includes the first roller 5 and the second roller 6 arranged at both ends of the frame body 4 and the film belt 7 arranged on the first roller 5 and the second roller 6.
  • the first roller 5 and the second roller 6 rotate to drive the film
  • the belt 7 moves to output the slurry output by the storage mechanism 1 to the next process after being heated and rolled.
  • the material storage mechanism 1 is a material storage box, which stores electrode slurry 8 inside, and a scraper 9 is provided at the outlet, and the scraper 9 is arranged vertically close to the outlet to control the thickness of the electrode blank.
  • a housing 10 is arranged between the storage mechanism 1 and the rolling mechanism 3.
  • the length of the housing 10 is 8m.
  • a pair of openings are oppositely arranged at the bottom of the housing 10, and the film belt 7 passes through the pair of openings in turn.
  • the bottom of film band 7 is provided with heating mechanism 2, and heating mechanism 2 can be heating wire etc.; 12.
  • Multiple exhaust fans 12 are provided at equal intervals.
  • a rolling mechanism 3 is provided at the exit of the housing 10, and the rolling mechanism 3 includes two sets of rolling structures correspondingly arranged up and down, and a delivery space for the slurry 8 is formed between the two sets of rolling structures, that is, a film belt 7 and slurry 8 are conveyed from the conveying space.
  • the rolling structure is a plurality of side-by-side distributed rolls, the number of the rolls in each group is greater than 6, and the upper and lower sets of rolls are arranged in one-to-one correspondence.
  • the rolling mechanism 3 is used to apply a rolling force to the slurry output by the heating mechanism 2, and the rolled electrode blank enters the next process after being cut.
  • the device of this embodiment can also be used for casting solid oxide electrode materials.
  • the rolling mechanism 3 can also be provided with only one set above the film belt 7, and can also be a press plate driven by an air cylinder.
  • a battery electrode processing method comprising:
  • the electrode slurry 8 Inject the electrode slurry 8 into the material storage box, coat the film belt 7 with silicone oil, rotate the first roller 5 and the second roller 6, drive the film belt 7 to move, the electrode slurry 8 flows out from the outlet of the material storage box, and passes through the scraper 9 Control its initial thickness; then enter the casing 10, control the heating temperature in the casing 10 to be 60-65°C, and the humidity to be 35-40%.
  • the inside of the electrode blank contains less moisture, and the remainder is binder and Nickel, and has a certain degree of ductility; the dried electrode blank enters the rolling mechanism 3 composed of multiple rolls, and the rolls apply a uniform rolling force to it; the rolled electrode blank enters the next process after being cut middle.

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  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

The present application relates to the technical field of battery processing, in particular to a battery electrode processing device and method. The battery electrode processing device comprises a storage mechanism, a heating mechanism and a rolling mechanism which are sequentially arranged in a slurry conveying direction, wherein the rolling mechanism is used for applying a rolling force to slurry output by the heating mechanism; and a conveying mechanism which sequentially penetrates through the storage mechanism, the heating mechanism and the rolling mechanism, such that the slurry output by the storage mechanism is heated and rolled, and is then output for the next procedure. According to the battery electrode processing device and method provided by the present application, the electrodes are consistent in thickness and are smooth, and the assembly effectiveness is high.

Description

一种电池电极加工装置和方法A battery electrode processing device and method
交叉引用cross reference
本申请要求在2021年8月10日提交中国专利局、申请号为202110916706.2、发明名称为“一种电池电极加工装置和方法”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。This application claims the priority of the Chinese patent application with the application number 202110916706.2 and the invention title "A battery electrode processing device and method" submitted to the China Patent Office on August 10, 2021, the entire contents of which are incorporated by reference in this application middle.
技术领域technical field
本申请涉及电池加工技术领域，具体涉及一种电池电极加工装置和方法。The present application relates to the technical field of battery processing, in particular to a battery electrode processing device and method.
背景技术Background technique
熔融碳酸盐燃料电池是一种高温燃料电池发电装置，具有发电效率高、燃料来源广、不需要贵金属作为催化剂、可与燃气轮机结合发电等优点，是一种具有发展潜力的技术。熔融碳酸盐燃料电池主要由双极板、电极、隔膜(电解质)等组成，其中双极板主要是由316L不锈钢的流场板和集流板组成，隔膜主要是由LiAlO 2组成，电极主要由多孔镍或镍-铬、镍-铝等组成。目前镍电极主要采用流延的方法进行制备，可以实现制备不同面积的电极，而在电极浆料流延的过程中，由于浆料具有一定的粘度和流动性，在干燥的过程中会发生厚度方向的不一致，这会导致燃料电池在装配过程中，电极与其他部件如隔膜、集流板的匹配不佳，进而影响电堆平整性和高度一致性，而且尺寸不一致的电极无法使用，会造成一定的资源浪费。 Molten carbonate fuel cell is a high-temperature fuel cell power generation device. It has the advantages of high power generation efficiency, wide fuel source, no need for precious metals as catalysts, and can be combined with gas turbines to generate power. It is a technology with development potential. Molten carbonate fuel cells are mainly composed of bipolar plates, electrodes, diaphragms (electrolytes), etc. The bipolar plates are mainly composed of 316L stainless steel flow field plates and collector plates, the diaphragm is mainly composed of LiAlO 2 , and the electrodes are mainly Composed of porous nickel or nickel-chromium, nickel-aluminum, etc. At present, nickel electrodes are mainly prepared by casting, which can realize the preparation of electrodes with different areas. In the process of casting electrode slurry, due to the certain viscosity and fluidity of the slurry, thickness will occur during the drying process. Inconsistent directions, which will lead to poor matching between electrodes and other components such as diaphragms and current collectors during the assembly process of fuel cells, which will affect the flatness and high consistency of the stack, and electrodes with inconsistent sizes cannot be used, which will cause A certain waste of resources.
发明内容Contents of the invention
因此，本申请要解决的技术问题在于克服现有技术中的电极厚度不一，影响装配的缺陷，从而提供一种电极厚度一致且平整，装配有效性高的电池电极 加工装置和方法。Therefore, the technical problem to be solved in this application is to overcome the defects in the prior art that the electrode thickness is not uniform and affect the assembly, so as to provide a battery electrode processing device and method with consistent and flat electrode thickness and high assembly efficiency.
为了解决上述技术问题，本申请提供了一种电池电极加工装置，包括：In order to solve the above technical problems, the present application provides a battery electrode processing device, including:
沿浆料输送方向依次设置的储料机构、加热机构和轧制机构，所述轧制机构用于对经所述加热机构输出的浆料施加轧制力；A storage mechanism, a heating mechanism and a rolling mechanism arranged in sequence along the slurry conveying direction, the rolling mechanism is used to apply a rolling force to the slurry output by the heating mechanism;
传送机构，依次贯穿所述储料机构、加热机构和轧制机构设置，以将所述储料机构输出的浆料经加热和轧制后输出至下一工序。The conveying mechanism is arranged sequentially through the storage mechanism, the heating mechanism and the rolling mechanism, so as to output the slurry output by the storage mechanism to the next process after being heated and rolled.
可选地，所述轧制机构包括上下对应设置的两组轧制结构，两组所述轧制结构之间形成浆料的输送空间。Optionally, the rolling mechanism includes two sets of rolling structures correspondingly arranged up and down, and a slurry delivery space is formed between the two sets of rolling structures.
可选地，所述轧制结构为多个并排分布的轧辊，且上下两组轧辊一一对应设置。Optionally, the rolling structure is a plurality of rolls distributed side by side, and the upper and lower sets of rolls are arranged in one-to-one correspondence.
可选地，每组所述轧辊的数量大于6个。Optionally, the number of the rolls in each group is greater than 6.
可选地，还包括设于所述储料机构出口的刮刀。Optionally, a scraper provided at the outlet of the storage mechanism is also included.
可选地，还包括与所述加热机构对应设置的通风机构。Optionally, a ventilation mechanism corresponding to the heating mechanism is also included.
可选地，所述通风机构包括通风口和靠近所述通风口设置的排气扇。Optionally, the ventilation mechanism includes a vent and an exhaust fan arranged near the vent.
可选地，所述加热机构和通风机构均设置在一壳体中，所述传送机构贯穿所述壳体设置，且所述加热机构和通风机构分设在所述传送机构相对的两侧。Optionally, both the heating mechanism and the ventilation mechanism are arranged in a casing, the transmission mechanism is arranged through the casing, and the heating mechanism and the ventilation mechanism are respectively arranged on opposite sides of the transmission mechanism.
还提供了一种电池电极加工方法，包括：Also provided is a battery electrode processing method, comprising:
对加热后的浆料进行轧制后输送至下一工序。The heated slurry is rolled and sent to the next process.
可选地，加热温度为60-65℃，湿度为35-40％，浆料的粘度为2000-2500cP。Optionally, the heating temperature is 60-65° C., the humidity is 35-40%, and the viscosity of the slurry is 2000-2500 cP.
本申请技术方案，具有如下优点：The technical solution of the present application has the following advantages:
1.本申请提供的电池电极加工装置，电极浆料依次经加热和轧制后再输送至下一工序，轧制机构对加热干燥后的电极坯料施加轧制力，从而使得电极坯 料在厚度方向产生一定的塑形变形，实现尺寸的一致性，电极坯料平整性较高，进而可以与其他部件进行有效匹配，减少了资源浪费。1. In the battery electrode processing device provided by this application, the electrode slurry is heated and rolled in sequence before being transported to the next process. The rolling mechanism applies a rolling force to the heated and dried electrode blank, so that the electrode blank in the thickness direction A certain plastic deformation is generated to achieve the consistency of size, and the electrode blank has high flatness, which can be effectively matched with other components, reducing the waste of resources.
2.本申请提供的电池电极加工装置，上下两组轧制结构同时对加热后的电极坯料施加轧制力，施力更加均匀，进一步提高了厚度的一致性。2. In the battery electrode processing device provided by this application, the upper and lower sets of rolling structures apply rolling force to the heated electrode blank at the same time, the force is more uniform, and the consistency of thickness is further improved.
3.本申请提供的电池电极加工装置，储料机构出口刮刀的设置，可以对电极坯料的初始厚度进行一定的控制。3. The battery electrode processing device provided in this application and the setting of the outlet scraper of the storage mechanism can control the initial thickness of the electrode blank to a certain extent.
4.本申请提供的电池电极加工装置，与加热机构对应设置的通风机构，保证了电极坯料在加工过程中的温度和湿度，提高了成品率。4. The battery electrode processing device provided in this application, and the ventilation mechanism provided corresponding to the heating mechanism, ensure the temperature and humidity of the electrode blank during processing, and improve the yield.
附图说明Description of drawings
为了更清楚地说明本申请具体实施方式或现有技术中的技术方案，下面将对具体实施方式或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图是本申请的一些实施方式，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the accompanying drawings that need to be used in the description of the specific embodiments or prior art. Obviously, the accompanying drawings in the following description The drawings are some implementations of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.
图1为本申请提供的电池电极加工装置的示意图。FIG. 1 is a schematic diagram of a battery electrode processing device provided in the present application.
附图标记说明：Explanation of reference signs:
1、储料机构；2、加热机构；3、轧制机构；4、架体；5、第一滚轮；6、第二滚轮；7、膜带；8、浆料；9、刮刀；10、壳体；11、通风口；12、排气扇。1. Material storage mechanism; 2. Heating mechanism; 3. Rolling mechanism; 4. Frame body; 5. First roller; 6. Second roller; 7. Film belt; 8. Slurry; 9. Squeegee; 10. Shell; 11, air vent; 12, exhaust fan.
具体实施方式Detailed ways
下面将结合附图对本申请的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请一部分实施例，而不是全部的实施例。基于本申请中的实 施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。The technical solutions of the present application will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some of the embodiments of the present application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
此外，下面所描述的本申请不同实施方式中所涉及的技术特征只要彼此之间未构成冲突就可以相互结合。In addition, the technical features involved in the different embodiments of the present application described below may be combined as long as they do not constitute a conflict with each other.
如图1所示的电池电极加工装置的一种具体实施方式，用于熔融碳酸盐燃料电池电极的加工，电极浆料主要为镍和粘结剂，镍为羰基镍粉，粘结剂为羧甲基纤维素钠溶液，电极浆料粘度为2000-2500cP，包括沿浆料8输送方向依次设置的储料机构1、加热机构2、轧制机构3，以及依次贯穿所述储料机构1、加热机构2和轧制机构3设置的传送机构。储料机构1、加热机构2、轧制机构3和传送机构均设于一架体4上。A specific embodiment of the battery electrode processing device shown in Figure 1 is used for the processing of molten carbonate fuel cell electrodes, the electrode slurry is mainly nickel and binder, nickel is carbonyl nickel powder, and the binder is Sodium carboxymethyl cellulose solution, the viscosity of the electrode slurry is 2000-2500cP, including a storage mechanism 1, a heating mechanism 2, a rolling mechanism 3 arranged in sequence along the conveying direction of the slurry 8, and sequentially passing through the storage mechanism 1 , The transmission mechanism that the heating mechanism 2 and the rolling mechanism 3 are provided with. The storage mechanism 1 , the heating mechanism 2 , the rolling mechanism 3 and the transmission mechanism are all arranged on a frame body 4 .
传送机构包括设于架体4两端的第一滚轮5、第二滚轮6和设于第一滚轮5及第二滚轮6上的膜带7，第一滚轮5和第二滚轮6转动，带动膜带7运动，以将所述储料机构1输出的浆料经加热和轧制后输出至下一工序。The transmission mechanism includes the first roller 5 and the second roller 6 arranged at both ends of the frame body 4 and the film belt 7 arranged on the first roller 5 and the second roller 6. The first roller 5 and the second roller 6 rotate to drive the film The belt 7 moves to output the slurry output by the storage mechanism 1 to the next process after being heated and rolled.
储料机构1为储料箱，内部储存有电极浆料8，出口设有刮刀9，刮刀9竖向靠近出口设置，以控制电极坯料的厚度。The material storage mechanism 1 is a material storage box, which stores electrode slurry 8 inside, and a scraper 9 is provided at the outlet, and the scraper 9 is arranged vertically close to the outlet to control the thickness of the electrode blank.
在储料机构1和轧制机构3之间设有一壳体10，壳体10长度为8m，壳体10的底部相向设有一对开口，膜带7依次穿过一对开口。膜带7的下方设有加热机构2，加热机构2可以为加热丝等；膜带7的上方设有通风机构，所述通风机构包括通风口11和靠近所述通风口11设置的排气扇12，排气扇12等间距间隔设有多个。A housing 10 is arranged between the storage mechanism 1 and the rolling mechanism 3. The length of the housing 10 is 8m. A pair of openings are oppositely arranged at the bottom of the housing 10, and the film belt 7 passes through the pair of openings in turn. The bottom of film band 7 is provided with heating mechanism 2, and heating mechanism 2 can be heating wire etc.; 12. Multiple exhaust fans 12 are provided at equal intervals.
在壳体10的出口设有轧制机构3，所述轧制机构3包括上下对应设置的两组轧制结构，两组所述轧制结构之间形成浆料8的输送空间，即膜带7和浆料8从输送空间中传送。具体的，所述轧制结构为多个并排分布的轧辊，每组所述轧辊的数量大于6个，且上下两组轧辊一一对应设置。所述轧制机构3用于 对经所述加热机构2输出的浆料施加轧制力，轧制后的电极坯料经裁剪后进入下一工序。A rolling mechanism 3 is provided at the exit of the housing 10, and the rolling mechanism 3 includes two sets of rolling structures correspondingly arranged up and down, and a delivery space for the slurry 8 is formed between the two sets of rolling structures, that is, a film belt 7 and slurry 8 are conveyed from the conveying space. Specifically, the rolling structure is a plurality of side-by-side distributed rolls, the number of the rolls in each group is greater than 6, and the upper and lower sets of rolls are arranged in one-to-one correspondence. The rolling mechanism 3 is used to apply a rolling force to the slurry output by the heating mechanism 2, and the rolled electrode blank enters the next process after being cut.
本实施例的装置还可以用于固体氧化物电极材料的流延。The device of this embodiment can also be used for casting solid oxide electrode materials.
作为替代的实施方式，轧制机构3还可以仅在膜带7上方设置一组，还可以为气缸驱动的压板。As an alternative embodiment, the rolling mechanism 3 can also be provided with only one set above the film belt 7, and can also be a press plate driven by an air cylinder.
一种电池电极加工方法，包括：A battery electrode processing method, comprising:
向储料箱中注入电极浆料8，膜带7上涂覆硅油，第一滚轮5和第二滚轮6转动，带动膜带7运动，电极浆料8从储料箱出口流出，经刮刀9控制其初始厚度；然后进入壳体10中，控制壳体10内的加热温度为60-65℃，湿度为35-40％，此时电极坯料内部含有较少的水分，剩余为粘结剂和镍，并具有一定的延展性；经过干燥的电极坯料进入由多条轧辊组成的轧制机构3中，轧辊对其施加均匀的轧制力；轧制后的电极坯料经裁剪后进入下一工序中。Inject the electrode slurry 8 into the material storage box, coat the film belt 7 with silicone oil, rotate the first roller 5 and the second roller 6, drive the film belt 7 to move, the electrode slurry 8 flows out from the outlet of the material storage box, and passes through the scraper 9 Control its initial thickness; then enter the casing 10, control the heating temperature in the casing 10 to be 60-65°C, and the humidity to be 35-40%. At this time, the inside of the electrode blank contains less moisture, and the remainder is binder and Nickel, and has a certain degree of ductility; the dried electrode blank enters the rolling mechanism 3 composed of multiple rolls, and the rolls apply a uniform rolling force to it; the rolled electrode blank enters the next process after being cut middle.
显然，上述实施例仅仅是为清楚地说明所作的举例，而并非对实施方式的限定。对于所属领域的普通技术人员来说，在上述说明的基础上还可以做出其它不同形式的变化或变动。这里无需也无法对所有的实施方式予以穷举。而由此所引伸出的显而易见的变化或变动仍处于本申请创造的保护范围之中。Apparently, the above-mentioned embodiments are only examples for clear description, rather than limiting the implementation. For those of ordinary skill in the art, other changes or changes in different forms can be made on the basis of the above description. It is not necessary and impossible to exhaustively list all the implementation manners here. However, the obvious changes or changes derived therefrom are still within the protection scope of the invention of the present application.

Claims (10)

  1. 一种电池电极加工装置，其特征在于，包括：A battery electrode processing device, characterized by comprising:
    沿浆料输送方向依次设置的储料机构(1)、加热机构(2)和轧制机构(3)，所述轧制机构(3)用于对经所述加热机构(2)输出的浆料(8)施加轧制力；A material storage mechanism (1), a heating mechanism (2) and a rolling mechanism (3) are arranged in sequence along the slurry conveying direction, and the rolling mechanism (3) is used for processing the slurry outputted by the heating mechanism (2). Material (8) exerts rolling force;
    传送机构，依次贯穿所述储料机构(1)、加热机构(2)和轧制机构(3)设置，以将所述储料机构(1)输出的浆料(8)经加热和轧制后输出至下一工序。A conveying mechanism is arranged sequentially through the storage mechanism (1), the heating mechanism (2) and the rolling mechanism (3), so that the slurry (8) output by the storage mechanism (1) is heated and rolled output to the next process.
  2. 根据权利要求1所述的电池电极加工装置，其特征在于，所述轧制机构(3)包括上下对应设置的两组轧制结构，两组所述轧制结构之间形成浆料(8)的输送空间。The battery electrode processing device according to claim 1, characterized in that the rolling mechanism (3) includes two sets of rolling structures correspondingly arranged up and down, and the slurry (8) is formed between the two sets of rolling structures delivery space.
  3. 根据权利要求2所述的电池电极加工装置，其特征在于，所述轧制结构为多个并排分布的轧辊，且上下两组轧辊一一对应设置。The battery electrode processing device according to claim 2, wherein the rolling structure is a plurality of rolls distributed side by side, and the upper and lower sets of rolls are arranged in one-to-one correspondence.
  4. 根据权利要求3所述的电池电极加工装置，其特征在于，每组所述轧辊的数量大于6个。The battery electrode processing device according to claim 3, wherein the number of said rollers in each group is greater than 6.
  5. 根据权利要求1-4任一项所述的电池电极加工装置，其特征在于，还包括设于所述储料机构(1)出口的刮刀(9)。The battery electrode processing device according to any one of claims 1-4, characterized in that it further comprises a scraper (9) arranged at the outlet of the storage mechanism (1).
  6. 根据权利要求1-5任一项所述的电池电极加工装置，其特征在于，还包括与所述加热机构(2)对应设置的通风机构。The battery electrode processing device according to any one of claims 1-5, further comprising a ventilation mechanism corresponding to the heating mechanism (2).
  7. 根据权利要求6所述的电池电极加工装置，其特征在于，所述通风机构包括通风口(11)和靠近所述通风口(11)设置的排气扇(12)。The battery electrode processing device according to claim 6, characterized in that the ventilation mechanism comprises a ventilation opening (11) and an exhaust fan (12) arranged close to the ventilation opening (11).
  8. 根据权利要求6所述的电池电极加工装置，其特征在于，所述加热机构(2)和通风机构均设置在一壳体(10)中，所述传送机构贯穿所述壳体(10) 设置，且所述加热机构(2)和通风机构分设在所述传送机构相对的两侧。The battery electrode processing device according to claim 6, characterized in that, both the heating mechanism (2) and the ventilation mechanism are arranged in a casing (10), and the transmission mechanism is arranged through the casing (10) , and the heating mechanism (2) and the ventilation mechanism are respectively arranged on opposite sides of the transmission mechanism.
  9. 一种电池电极加工方法，其特征在于，包括：A battery electrode processing method, characterized by comprising:
    对加热后的浆料进行轧制后输送至下一工序。The heated slurry is rolled and sent to the next process.
  10. 根据权利要求9所述的电池电极加工方法，其特征在于，加热温度为60-65℃，湿度为35-40％，浆料的粘度为2000-2500cP。The battery electrode processing method according to claim 9, characterized in that the heating temperature is 60-65° C., the humidity is 35-40%, and the viscosity of the slurry is 2000-2500 cP.
PCT/CN2021/140428 2021-08-10 2021-12-22 Battery electrode processing device and method WO2023015814A1 (en)

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