Dry production device for pole piece
By designing a pole-sheet dry production device, the orderly arrangement of components such as feed conveying components, surface density detection and rolling mechanisms, the problem of low processing efficiency of pole-sheets in the prior art is solved, and efficient preparation and high-quality production of composite pole-sheets are achieved.
Patent Information
- Application Number
- CN202422153887.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-03
- Publication Date
- 2025-08-12
- Estimated Expiration
- 2034-09-03
AI Technical Summary
The existing ultra-sheet dry processing process lacks reasonable large-scale processing components, resulting in low processing efficiency and difficult to meet the efficient preparation of composite ultra-sheets.
A pole-sheet dry production device is designed, including a first feeding conveying component, a surface density detection mechanism, a rolling mechanism and a laser thickness measurement mechanism. Through the orderly arrangement and coordinated work of these components, efficient processing of the pole-sheet is achieved.
The production and processing efficiency of composite electrode sheets is improved, and the high quality and efficient preparation of electrode sheets are ensured.
Smart Images
Figure CN223218311U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of battery production, and particularly relates to a dry-process production device for pole pieces. Background Art
[0002] With the development of battery technology, battery products are increasingly focusing on their safety and charge-discharge performance. In the production and processing of batteries, the production process of battery pole pieces requires key control. The processing quality of pole pieces will have a significant impact on the safety and charge-discharge performance of the battery. At the same time, in the existing dry processing process, pole pieces are usually processed by scattered processing components. As a result, the existing dry processing process does not reasonably and scale up the pole piece processing components, which seriously affects the processing efficiency of the pole pieces and cannot meet the requirements for the efficient preparation of composite pole pieces. Utility Model Content
[0003] The purpose of this utility model is to address the deficiencies of the existing technology and provide a dry process production device for pole pieces, which has strong controllability, can meet the preparation requirements of composite material pole pieces, and effectively improve the production and processing efficiency of composite material pole pieces.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A dry process production device for pole pieces, comprising:
[0006] The first feeding conveying assembly includes a first roller conveying module and a second roller conveying module which are arranged opposite to each other along the pole piece conveying direction;
[0007] The first surface density detection mechanism is used to detect the surface density of both sides of the pole piece;
[0008] The first rolling mechanism comprises a clockwise rolling roller and a counterclockwise rolling roller which are arranged opposite to each other;
[0009] The first laser thickness measuring mechanism is used to detect the overall thickness of the pole piece;
[0010] The second feeding conveying assembly includes a third roller conveying module and a fourth roller conveying module which are arranged opposite to each other along the pole piece conveying direction;
[0011] The first feeding and conveying assembly, the first surface density detection mechanism, the first rolling mechanism, the first laser thickness measuring mechanism and the second feeding and conveying assembly are sequentially arranged along the pole piece conveying direction.
[0012] As an improvement to the dry process production device for the pole piece of the present invention, the second feeding and conveying assembly, the second surface density detection mechanism, the second rolling mechanism and the second laser thickness measuring mechanism are sequentially arranged along the pole piece conveying direction.
[0013] As an improvement to the dry process production device of the pole piece of the present invention, the second laser thickness measuring mechanism, the pole tab extending mechanism, the third rolling mechanism and the third laser thickness measuring mechanism are sequentially arranged along the pole piece conveying direction.
[0014] As an improvement to the dry-process production device for pole pieces of the present invention, a first heat-drying mechanism is provided between the first surface density detection mechanism and the first rolling mechanism.
[0015] As an improvement to the dry-process production device for pole pieces of the present invention, a second heat-baking mechanism is provided between the second surface density detection mechanism and the second rolling mechanism.
[0016] As an improvement to the dry-process production device for the pole piece of the present invention, a third heat-baking mechanism is provided between the second laser thickness measuring mechanism and the pole tab extending mechanism.
[0017] As an improvement to the dry process production device for pole pieces of the present invention, the first feeding and conveying assembly is arranged between the first heating mechanism and the first surface density detection mechanism.
[0018] As an improvement to the dry-process production device for pole pieces of the present invention, the pole tab extension mechanism includes a first tension control roller and a second tension control roller that are arranged opposite to each other.
[0019] As an improvement to the dry production device of the electrode of the utility model, it also includes a unwinding mechanism and a rewinding mechanism. The unwinding mechanism, the first feeding and conveying assembly, the first surface density detection mechanism, the first rolling mechanism, the first laser thickness measuring mechanism, the second feeding and conveying assembly and the rewinding mechanism are arranged in sequence along the electrode conveying direction.
[0020] As an improvement to the dry process production device of the electrode of the present invention, the first roller conveying module, the second roller conveying module, the third roller conveying module and the fourth roller conveying module respectively have a feeding unit and at least two parallel conveying transfer rollers with opposite directions.
[0021] The beneficial effects of the present invention are: the present invention includes a first feeding and conveying assembly, a first surface density detection mechanism, a first rolling mechanism, a first laser thickness measuring mechanism and a second feeding and conveying assembly which are arranged in sequence along the transmission direction of the electrode piece. The first feeding and conveying assembly includes a first roller conveying module and a second roller conveying module which are relatively arranged along the transmission direction of the electrode piece. The first surface density detection mechanism is used to detect the surface density on both sides of the electrode piece. The first rolling mechanism includes a clockwise roller and a counterclockwise roller which are relatively arranged. The clockwise roller and the counterclockwise roller can relatively crush the surface of the electrode piece to ensure that the electrode piece has a higher compaction density. The first laser thickness measuring mechanism is used to detect the overall thickness of the electrode piece. The second feeding and conveying assembly includes a third roller conveying module and a fourth roller conveying module which are relatively arranged along the transmission direction of the electrode piece. Through the construction of the above components and the efficient transmission of the first roller conveying module, the second roller conveying module, the third roller conveying module and the fourth roller conveying module, it can meet the preparation of composite material electrodes and effectively improve the production and processing efficiency of composite material electrodes. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural diagram of the present utility model.
[0023] Figure 2 This is a structural diagram of the first roller transmission module of the present invention.
[0024] Figure 3 This is a schematic structural diagram of the first heat drying mechanism of the present invention.
[0025] Figure 4 It is a structural schematic diagram of the tab extension mechanism of the present invention.
[0026] Among them: 1. unwinding mechanism; 2. first heating mechanism; 3. first steel roller; 4. first surface density detection mechanism; 5. first heat drying mechanism; 6. first rolling mechanism; 7. first laser thickness measuring mechanism; 8. second surface density detection mechanism; 9. second heat drying mechanism; 10. second rolling mechanism; 11. second laser thickness measuring mechanism; 12. third heat drying mechanism; 13. second steel roller; 14. tab extension mechanism; 15. third rolling mechanism; 16. third laser thickness measuring mechanism; 17. winding mechanism; 111. first rotating roller transmission module; 112. second rotating roller transmission module; 113. third rotating roller transmission module; 114. fourth rotating roller transmission module; 115. feeding unit; 116. transmission transfer roller; 141. first tension control roller; 142. second tension control roller. DETAILED DESCRIPTION
[0027] If certain words are used in the specification and claims to refer to specific components, those skilled in the art should understand that manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in name as a way to distinguish components, but rather use differences in the functions of the components as the criteria for distinction. For example, the term "including" mentioned throughout the specification and claims is an open-ended term and should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve technical problems within a certain error range and basically achieve technical effects.
[0028] In this utility model, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, it can mean fixed connection, detachable connection, or integral connection; it can mean mechanical connection, direct connection, indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0029] Existing methods for coating composite materials on electrode sheets generally use traditional wet coating technology. However, the inventors have discovered that traditional wet electrode preparation technology has low production and processing efficiency. Composite electrode sheet processing generally requires additional secondary processing, resulting in a low level of integration of processing equipment. Therefore, it is necessary to provide a new electrode sheet production device.
[0030] The following is combined with Figures 1 to 4 The present invention is further described in detail with reference to the following specific embodiments, but is not intended to limit the present invention.
[0031] A dry process production device for pole pieces, see Figure 1 , including a first feeding and conveying assembly, a first surface density detection mechanism 4, a first rolling mechanism 6, a first laser thickness measuring mechanism 7 and a second feeding and conveying assembly arranged in sequence along the electrode conveying direction, wherein the first feeding and conveying assembly includes a first roller conveying module 111 and a second roller conveying module 112 arranged oppositely along the electrode conveying direction, the first surface density detection mechanism 4 is used to detect the surface density of both sides of the electrode, the first rolling mechanism 6 includes a clockwise roller and a counterclockwise roller arranged oppositely, the first laser thickness measuring mechanism 7 is used to detect the overall thickness of the electrode, and the second feeding and conveying assembly includes a third roller conveying module 113 and a fourth roller conveying module 114 arranged oppositely along the electrode conveying direction.
[0032] By constructing the above components, the first feeding and conveying components and the second feeding and conveying components can meet the coating processing of the composite material pole pieces and effectively improve the production and processing efficiency of the composite material pole pieces.
[0033] For example, when producing lithium-ion batteries, the composite electrode material of the lithium-ion battery can be lithium nickel cobalt manganate + lithium iron phosphate, lithium cobaltate + lithium iron phosphate, lithium manganate + lithium iron phosphate, lithium nickel cobalt manganate + lithium manganate, lithium titanate + lithium iron phosphate, lithium nickel cobalt manganate + lithium iron manganese phosphate, lithium cobaltate + lithium iron manganese phosphate, lithium manganate + lithium iron manganese phosphate, lithium nickel cobalt manganate + lithium manganese phosphate, lithium titanate + lithium iron manganese phosphate; when producing sodium-ion batteries, the composite electrode material of the sodium-ion battery can be a sodium ion layered oxide + polyanion system, a sodium ion layered oxide + Prussian blue system, or a Prussian blue body + polyanion system.
[0034] During the production of lithium-ion batteries, the first roller conveying module 111 and the second roller conveying module 112 can convey at least one of lithium nickel cobalt manganese oxide, lithium cobalt oxide, lithium manganese oxide, and lithium titanate, and the third roller conveying module 113 and the fourth roller conveying module 114 can convey one of lithium iron phosphate and lithium manganese iron phosphate.
[0035] During the production of sodium ion batteries, the first roller conveying module 111 and the second roller conveying module 112 can convey at least one of sodium ion layered oxides, Prussian blue, and Prussian white, and the third roller conveying module 113 and the fourth roller conveying module 114 can convey at least one of phosphates, fluorinated phosphates, sulfates, silicates, borates, and pyrophosphates in the polyanion system.
[0036] Preferably, see Figure 2 The first roller conveying module 111, the second roller conveying module 112, the third roller conveying module 113 and the fourth roller conveying module 114 respectively have a feeding unit 115 and at least two parallel conveying transfer rollers 116 with opposite directions. The feeding unit 115 can be arranged between two adjacent conveying transfer rollers 116.
[0037] After the first layer of coating on the electrode is roller-coated, the first surface density detection mechanism 4 detects the weight of the coating layer online in real time to prevent the coating from being too heavy or too light, so as to facilitate real-time monitoring and adjustment.
[0038] In addition, the device also includes an unwinding mechanism 1, a first heating mechanism 2, a first steel roller 3, a first heat-drying mechanism 5, a second surface density detection mechanism 8, a second heat-drying mechanism 9, a second rolling mechanism 10, a second laser thickness measurement mechanism 11, a third heat-drying mechanism 12, a second steel roller 13, a tab extension mechanism 14, a third rolling mechanism 15, a third laser thickness measurement mechanism 16, and a winding mechanism 17. A PLC controller can be provided in the device to connect the various mechanisms to effectively control their normal operation.
[0039] Preferably, the first feeding conveying assembly is arranged between the first heating mechanism 2 and the first surface density detection mechanism 4. The first heating mechanism 2 can be a PTC heater, which can effectively remove moisture from the surface of the electrode. In addition, in order to effectively remove moisture in each step of the electrode and realize dry preparation of the electrode, in the design of the device, the first heat drying mechanism 5 is arranged between the first surface density detection mechanism 4 and the first rolling mechanism 6, the second heat drying mechanism 9 is arranged between the second surface density detection mechanism 8 and the second rolling mechanism 10, and the third heat drying mechanism 12 is arranged between the second laser thickness measurement mechanism 11 and the tab extension mechanism 14. Among them, the structures of each heat drying mechanism can be exactly the same, see Figure 3 The hot drying mechanism is mainly composed of a hot oven and an electromagnetic heating roller arranged in the hot oven.
[0040] Preferably, the second feeding conveying assembly, the second surface density detection mechanism 8, the second heat drying mechanism 9, the second rolling mechanism 10 and the second laser thickness measuring mechanism 11 are arranged in sequence along the electrode conveying direction. After the second layer of coating of the electrode is completed by roller coating, the second surface density detection mechanism 8 detects the weight of the second layer of coating online in real time to avoid the coating being too heavy or too light, so as to facilitate real-time monitoring and adjustment. The first surface density detection mechanism 4 and the second surface density detection mechanism 8 can be an X-ray surface density detection mechanism or a β-ray surface density detection mechanism, respectively. The second rolling mechanism 10 includes a clockwise roller and a counterclockwise roller arranged opposite to each other.
[0041] Preferably, the second laser thickness measuring mechanism 11, the third heat baking mechanism 12, the second steel roller 13, the tab extension mechanism 14, the third rolling mechanism 15 and the third laser thickness measuring mechanism 16 are sequentially arranged along the pole piece conveying direction. Figure 4 The tab extension mechanism 14 includes a first tension control roller 141 and a second tension control roller 142 that are arranged opposite to each other. The tab can pass through the first tension control roller 141 and the second tension control roller 142 of the tab extension mechanism 14 so that the tab can be extended by the relative stretching of the first tension control roller 141 and the second tension control roller 142.
[0042] The third rolling mechanism 15 includes a clockwise roller and a counterclockwise roller that are arranged opposite to each other.
[0043] The first laser thickness measuring mechanism 7 , the second laser thickness measuring mechanism 11 and the third laser thickness measuring mechanism 16 can all detect the electrode thickness of each process online to avoid the electrode being too thick or too thin, so as to facilitate real-time monitoring and adjustment.
[0044] Preferably, the unwinding mechanism 1, the first feeding and conveying assembly, the first surface density detection mechanism 4, the first rolling mechanism 6, the first laser thickness measuring mechanism 7, the second feeding and conveying assembly and the winding mechanism 17 are arranged in sequence along the electrode sheet transmission direction, and the substrate passes through the unwinding mechanism 1, the first heating mechanism 2, the first steel roller 3, the first feeding and conveying assembly, the first surface density detection mechanism 4, the first hot drying mechanism 5, the first rolling mechanism 6, the first laser thickness measuring mechanism 7, the second feeding and conveying assembly, the second surface density detection mechanism 8, the second hot drying mechanism 9, the second rolling mechanism 10, the second laser thickness measuring mechanism 11, the third hot drying mechanism 12, the second steel roller 13, the pole ear extension mechanism 14, the third rolling mechanism 15, the third laser thickness measuring mechanism 16 and the winding mechanism 17 in sequence, so as to be efficiently processed into a composite material electrode sheet.
[0045] Obviously, the device of the present invention has a high degree of integration, perfect process, high production efficiency and strong versatility, which ensures that the electrode of the composite material has a high production and processing quality.
[0046] Based on the disclosure and teachings of the above description, those skilled in the art will be able to make changes and modifications to the above embodiments. Therefore, the utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions, or modifications made by those skilled in the art based on the present utility model fall within the scope of protection of the present utility model. In addition, although certain specific terms are used in this description, these terms are for convenience only and do not constitute any limitation on the present utility model.
Claims
1. A dry process production device for electrode, characterized in that: include: A first feeding conveying assembly comprises a first roller conveying module (111) and a second roller conveying module (112) arranged opposite to each other along a pole piece conveying direction; A first surface density detection mechanism (4) is used to detect the surface density of both sides of the pole piece; A first rolling mechanism (6) includes a clockwise rolling roller and a counterclockwise rolling roller that are arranged opposite to each other; A first laser thickness measuring mechanism (7) is used to detect the overall thickness of the pole piece; The second feeding conveying assembly comprises a third roller conveying module (113) and a fourth roller conveying module (114) which are arranged opposite to each other along the pole piece conveying direction; The first feeding and conveying assembly, the first surface density detection mechanism (4), the first rolling mechanism (6), the first laser thickness measurement mechanism (7) and the second feeding and conveying assembly are arranged in sequence along the pole piece conveying direction.
2. The dry process production device for electrode pieces according to claim 1, characterized in that: The second feeding and conveying assembly, the second surface density detection mechanism (8), the second rolling mechanism (10) and the second laser thickness measurement mechanism (11) are arranged in sequence along the pole piece conveying direction.
3. The dry process production device for electrode pieces according to claim 2, characterized in that: The second laser thickness measuring mechanism (11), the pole tab extending mechanism (14), the third rolling mechanism (15) and the third laser thickness measuring mechanism (16) are arranged in sequence along the pole piece conveying direction.
4. The dry process production device for electrode pieces according to claim 1, characterized in that: A first heat drying mechanism (5) is provided between the first surface density detection mechanism (4) and the first rolling mechanism (6).
5. The dry process production device for electrode pieces according to claim 2, characterized in that: A second heat drying mechanism (9) is provided between the second surface density detection mechanism (8) and the second rolling mechanism (10).
6. The dry process production device for electrode pieces according to claim 3, characterized in that: A third heat-baking mechanism (13) is provided between the second laser thickness measuring mechanism (11) and the tab extending mechanism (14).
7. The dry process production device for electrode pieces according to claim 1 or 4, characterized in that: The first feeding conveying assembly is arranged between the first heating mechanism (2) and the first surface density detection mechanism (4).
8. The dry process production device for electrode pieces according to claim 3 or 6, characterized in that: The tab extension mechanism (14) comprises a first tension control roller (141) and a second tension control roller (142) which are arranged opposite to each other.
9. The dry process production device for electrode pieces according to any one of claims 1 to 6, characterized in that: The invention also includes an unwinding mechanism (1) and a rewinding mechanism (17), wherein the unwinding mechanism (1), the first feeding and conveying assembly, the first surface density detection mechanism (4), the first rolling mechanism (6), the first laser thickness measuring mechanism (7), the second feeding and conveying assembly and the rewinding mechanism (17) are arranged in sequence along the pole piece conveying direction.
10. The dry process production device for electrode pieces according to any one of claims 1 to 6, characterized in that: The first roller conveying module (111), the second roller conveying module (112), the third roller conveying module (113) and the fourth roller conveying module (114) respectively have a feeding unit (115) and at least two parallel conveying transfer rollers (116) with opposite directions.