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CN113881362A - A kind of low surface energy adhesive tape for lithium ion battery - Google Patents

A kind of low surface energy adhesive tape for lithium ion battery Download PDF

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Publication number
CN113881362A
CN113881362A CN202111287724.5A CN202111287724A CN113881362A CN 113881362 A CN113881362 A CN 113881362A CN 202111287724 A CN202111287724 A CN 202111287724A CN 113881362 A CN113881362 A CN 113881362A
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Prior art keywords
tape
gluing
adhesive tape
roller
room
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Chinese (zh)
Inventor
汪峰
万中梁
梁龙
李奎
李俊生
方超超
夏金明
芮鹏程
宋世杰
张东星
乐海霞
朱润雨
李鑫
刘杰
刘伟
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Wuhu Huishi New Material Technology Co ltd
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Wuhu Huishi New Material Technology Co ltd
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Priority to CN202111287724.5A priority Critical patent/CN113881362A/en
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    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/22—Plastics; Metallised plastics
    • C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0813—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for supplying liquid or other fluent material to the roller
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0817—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line characterised by means for removing partially liquid or other fluent material from the roller, e.g. scrapers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B05C1/0826—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line the work being a web or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C13/00—Means for manipulating or holding work, e.g. for separate articles
    • B05C13/02—Means for manipulating or holding work, e.g. for separate articles for particular articles
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J175/00—Adhesives based on polyureas or polyurethanes; Adhesives based on derivatives of such polymers
    • C09J175/04—Polyurethanes
    • C09J175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/50—Adhesives in the form of films or foils characterised by a primer layer between the carrier and the adhesive
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2463/00—Presence of epoxy resin
    • C09J2463/003—Presence of epoxy resin in the primer coating
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2467/00—Presence of polyester
    • C09J2467/006—Presence of polyester in the substrate
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J2475/00—Presence of polyurethane

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cell Separators (AREA)

Abstract

The invention discloses a low surface energy adhesive tape for a lithium ion battery, wherein a tape base tape is provided with a soft coating and an acrylate composite layer, the soft coating is formed by gluing the tape base tape, the acrylate composite layer is formed by gluing the soft coating, and the soft coating is positioned between the tape base tape and the acrylate composite layer. The treatment process comprises the following steps: unwinding the adhesive tape base tape by an adhesive tape base tape unwinding roller, and purifying the adhesive tape base tape in a purifying chamber; the adhesive tape base band coming out of the purifying chamber enters a gluing chamber to carry out gluing operation of the soft coating, and then is heated by an intermediate heating treatment chamber; and the adhesive tape base band after heating treatment enters a gluing chamber to carry out gluing operation of the acrylate composite layer, the adhesive tape after gluing enters a tail heating treatment chamber to carry out heating treatment again, and the adhesive tape coming out of the tail heating treatment chamber is subjected to adhesive tape winding operation through an adhesive tape winding roller. High cleanliness and relatively low surface energy, and improves the performance of the adhesive tape product.

Description

一种锂离子电池用低表面能胶带A kind of low surface energy adhesive tape for lithium ion battery

技术领域technical field

本发明涉及锂离子电池技术领域，尤其是涉及一种锂离子电池用低表面能胶带。The invention relates to the technical field of lithium ion batteries, in particular to a low surface energy adhesive tape for lithium ion batteries.

背景技术Background technique

目前锂离子电池用胶带主要用于电池电芯生产工序中，主要作用在锂电池生产过程中起固定和绝缘；锂离子电池用胶带对胶带洁净度要求相对传统胶带高，现有胶带难以达到要求；并且胶带的粘结层多为单层的丙烯酸酯层，由于丙烯酸酯材料本身特性，表面能降低具有一定限度，表面能很难进一步的降低，影响胶带性能。At present, tapes for lithium-ion batteries are mainly used in the production process of battery cells, and the main function is to fix and insulate in the production process of lithium-ion batteries. The tapes for lithium-ion batteries have higher requirements on the cleanliness of the tapes than traditional tapes, and the existing tapes are difficult to meet the requirements. ; And the adhesive layer of the tape is mostly a single-layer acrylate layer. Due to the characteristics of the acrylate material, the surface energy reduction has a certain limit, and it is difficult to further reduce the surface energy, which affects the performance of the tape.

发明内容SUMMARY OF THE INVENTION

针对现有技术不足，本发明所要解决的技术问题是提供一种锂离子电池用低表面能胶带，以达到洁净度高以及表面能相对较低的目的。In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a low surface energy adhesive tape for lithium ion batteries, so as to achieve the goals of high cleanliness and relatively low surface energy.

为了解决上述技术问题，本发明所采用的技术方案为：In order to solve the above-mentioned technical problems, the technical scheme adopted in the present invention is:

一种锂离子电池用低表面能胶带，包括胶带基带，所述胶带基带上设有软性涂层以及丙烯酸酯复合层，所述软性涂层先在胶带基带上胶成型，丙烯酸酯复合层再涂胶在软性涂层上成型，软性涂层位于胶带基带和丙烯酸酯复合层之间。A low-surface-energy adhesive tape for lithium ion batteries, comprising an adhesive tape base tape, the adhesive tape base tape is provided with a soft coating and an acrylate composite layer, the soft coating is first formed by gluing on the adhesive tape base tape, and the acrylate composite layer is formed. Re-coating is formed on the soft coating, which is located between the tape base tape and the acrylate composite layer.

所述软性涂层为柔性环氧树脂。The soft coating is a flexible epoxy resin.

所述丙烯酸酯复合层为丙烯酸酯单体和聚氨酯丙烯酸酯的混合涂层。The acrylate composite layer is a mixed coating of acrylate monomer and urethane acrylate.

一种所述锂离子电池用低表面能胶带的处理工艺，包括以下步骤：A process for treating the low surface energy adhesive tape for the lithium ion battery, comprising the following steps:

1)通过胶带基带放卷辊进行胶带基带放卷操作，胶带基带进入净化室净化处理；1) Carry out the tape base tape unwinding operation through the tape base tape unwinding roller, and the tape base tape enters the clean room for purification treatment;

2)从净化室出来的胶带基带进入上胶室进行软性涂层的上胶操作，再通过中间加热处理室进行加热处理；2) The tape base tape coming out of the clean room enters the gluing room to carry out the gluing operation of the soft coating, and then heats it through the intermediate heating treatment room;

3)加热处理后的胶带基带进入涂胶室进行丙烯酸酯复合层的涂胶操作，涂胶后的胶带进入尾部加热处理室内再次进行加热处理，从尾部加热处理室出来的胶带通过胶带收卷辊进行胶带收卷操作。3) The adhesive tape base tape after heat treatment enters the gluing room for the gluing operation of the acrylate composite layer, the glued tape enters the rear heating treatment room for heat treatment again, and the tape coming out of the rear heating treatment room passes through the tape winding roller Carry out the tape rewinding operation.

所述净化室、上胶室、中间加热处理室、涂胶室以及尾部加热处理室为依次对胶带处理的整体处理箱体结构，整体处理箱体结构的一侧设有一侧基板，胶带基带放卷辊设在一侧基板上，整体处理箱体结构的另一侧设有另一侧基板，胶带收卷辊设在另一侧基板上，并在整体处理箱体结构的顶部设有一组吊环。The clean room, the gluing room, the middle heating treatment room, the glue coating room and the rear heating treatment room are the overall processing box structure for sequentially processing the tape. One side of the overall processing box structure is provided with a side substrate, and the tape base tape The winding roller is arranged on one side of the substrate, the other side of the overall processing box structure is arranged with the other side substrate, the tape winding roller is arranged on the other side substrate, and a set of lifting rings is arranged on the top of the overall processing box structure .

所述净化室的顶部设有净化风机，净化风机和净化室之间过滤板，过滤板可抽拉的设置在净化室的顶部。The top of the purification room is provided with a purification fan, a filter plate between the purification fan and the purification chamber, and the filter plate can be drawn and arranged on the top of the purification chamber.

所述上胶室内设有用于对胶带基带下表面进行上胶的上胶辊，上胶室内在上胶辊的下方设有用于向上胶辊底部外缘喷胶的胶液喷头，在胶液喷头的下方设有胶液收集槽，上胶辊的上缘与胶带基带下表面接触进行上胶。The gluing chamber is provided with a gluing roller for gluing the lower surface of the tape base belt, and a glue liquid nozzle for spraying glue on the bottom outer edge of the upper rubber roller is arranged under the gluing chamber in the gluing chamber. There is a glue liquid collection tank below the glue roller, and the upper edge of the glue roller is in contact with the lower surface of the tape base tape for gluing.

所述涂胶室内设有用于在胶带软性涂层上涂胶的一对涂胶辊，一对涂胶辊前后间隔并排设置，一对涂胶辊的下方设有辊刷和涂胶槽，辊刷位于一对涂胶辊的底部之间，辊辊的下部位于涂胶槽的胶液中，辊刷的上部侧边缘与对应侧涂胶辊的辊面接触。The gluing chamber is provided with a pair of gluing rollers for gluing on the soft coating of the tape. The roller brush is located between the bottoms of a pair of glue rollers, the lower part of the roller is located in the glue solution of the glue tank, and the upper side edge of the roller brush is in contact with the roller surface of the corresponding side glue roller.

所述涂胶室内在一对涂胶辊的上方设有胶带定位板，胶带从胶带定位板和一对涂胶辊之间通过，胶带定位板通过吊架悬空设在涂胶室内，胶带定位板和吊架之间通过弹性连接结构相连，胶带定位板为下表面光滑的平板结构。In the gluing chamber, a tape positioning plate is arranged above a pair of gluing rollers. The adhesive tape passes between the adhesive tape positioning plate and the pair of gluing rollers. The tape positioning plate is suspended in the gluing chamber through a hanger. It is connected with the hanger through an elastic connection structure, and the tape positioning plate is a flat plate structure with a smooth lower surface.

本发明与现有技术相比，具有以下优点：Compared with the prior art, the present invention has the following advantages:

该锂离子电池用低表面能胶带在涂胶处理前展开通过净化室净化处理，通过前后两次连续涂胶处理，在中间形成软性涂层，改变传统胶带结构，洁净度高以及表面能相对较低，提升了胶带产品性能。The low surface energy tape for lithium ion battery is unfolded and purified in a clean room before the gluing treatment. After two consecutive gluing treatments, a soft coating is formed in the middle, which changes the structure of the traditional tape, with high cleanliness and relatively high surface energy. lower, which improves the performance of tape products.

附图说明Description of drawings

下面对本说明书各幅附图所表达的内容及图中的标记作简要说明：Below is a brief description of the content expressed in each of the drawings in this specification and the symbols in the drawings:

图1为本发明处理装置示意图。FIG. 1 is a schematic diagram of the processing device of the present invention.

图中：In the picture:

1.胶带基带放卷辊、2.净化室、3.风机、4.过滤板、5.上胶辊、6.胶液喷头、7.胶液收集槽、8.中间加热处理室、9.吊架、10.胶带定位板、11.涂胶辊、12.涂胶槽、13.辊刷、14.尾部加热处理室、15.胶带收卷辊、16.升降结构。1. Tape base tape unwinding roller, 2. Clean room, 3. Fan, 4. Filter plate, 5. Coating roller, 6. Glue nozzle, 7. Glue collection tank, 8. Intermediate heating treatment room, 9. Hanger, 10. Tape positioning plate, 11. Coating roller, 12. Coating tank, 13. Roller brush, 14. Tail heating treatment room, 15. Tape winding roller, 16. Lifting structure.

具体实施方式Detailed ways

下面对照附图，通过对实施例的描述，对本发明的具体实施方式作进一步详细的说明。The specific embodiments of the present invention will be described in further detail below through the description of the embodiments with reference to the accompanying drawings.

如图1所示，该锂离子电池用低表面能胶带，包括胶带基带，胶带基带为PET胶带基膜，胶带基带上设有软性涂层以及丙烯酸酯复合层，软性涂层先在胶带基带上胶成型，丙烯酸酯复合层再涂胶在软性涂层上成型，软性涂层位于胶带基带和丙烯酸酯复合层之间。As shown in Figure 1, the low surface energy tape for lithium ion battery includes a tape base tape, the tape base tape is a PET tape base film, and the tape base tape is provided with a soft coating and an acrylate composite layer, and the soft coating is first on the tape. The base tape is glued and formed, the acrylate composite layer is then glued and formed on the soft coating, and the soft coating is located between the tape base tape and the acrylic composite layer.

软性涂层为柔性环氧树脂；丙烯酸酯复合层为丙烯酸酯单体和聚氨酯丙烯酸酯的混合涂层，即丙烯酸酯单体和聚氨酯丙烯酸酯混合形成混合涂胶液，将混合涂胶液涂至到胶带软性涂层上形成丙烯酸酯复合层；最终在胶带表面上形成粘结层，粘结层中极性基团相对较少，以及通过表面胶层软性处理，从而实现表面能相对较低，提高了胶带的性能。The soft coating is flexible epoxy resin; the acrylate composite layer is a mixed coating of acrylate monomer and urethane acrylate, that is, acrylate monomer and urethane acrylate are mixed to form a mixed glue solution, and the mixed glue solution is applied. To form an acrylate composite layer on the soft coating of the tape; finally, a bonding layer is formed on the surface of the tape, with relatively few polar groups in the bonding layer, and through the soft treatment of the surface adhesive layer, the surface energy is relatively low. lower, improving the performance of the tape.

锂离子电池用低表面能胶带的性能对应下面的处理工艺非常重要，通过对应的设备以及工艺实现自动连续化处理，同时实现表面能相对较低。The performance of low surface energy tapes for lithium-ion batteries is very important for the following processing processes. Automatic continuous processing is achieved through corresponding equipment and processes, and the surface energy is relatively low.

本发明中锂离子电池用低表面能胶带的处理工艺，包括以下步骤：The processing technology of low surface energy adhesive tape for lithium ion battery in the present invention comprises the following steps:

通过胶带基带放卷辊1进行胶带基带放卷操作，胶带基带进入净化室2净化处理；The tape base tape unwinding operation is carried out through the tape base tape unwinding roller 1, and the tape base tape enters the clean room 2 for purification treatment;

从净化室出来的胶带基带进入上胶室进行软性涂层的上胶操作，再通过中间加热处理室进行加热处理；The tape base tape coming out of the clean room enters the gluing room for the gluing operation of the soft coating, and then passes through the intermediate heating treatment room for heating treatment;

加热处理后的胶带基带进入涂胶室进行丙烯酸酯复合层的涂胶操作，涂胶后的胶带进入尾部加热处理室内再次进行加热处理，从尾部加热处理室出来的胶带通过胶带收卷辊进行胶带收卷操作。The heat-treated tape base tape enters the gluing room for gluing operation of the acrylate composite layer, the glued tape enters the rear heating treatment room for heat treatment again, and the tape coming out of the rear heating treatment room passes through the tape rewinding roller. rewinding operation.

其中，in,

净化室2、上胶室、中间加热处理室8、涂胶室以及尾部加热处理室14为依次对胶带处理的整体处理箱体结构，整体结构便于转运和安装。The clean room 2, the gluing room, the middle heating treatment room 8, the glue coating room and the rear heating treatment room 14 are the overall processing box structure for sequentially processing the tape, and the overall structure is convenient for transportation and installation.

整体处理箱体结构的一侧设有一侧基板，胶带基带放卷辊1设在一侧基板上，整体处理箱体结构的另一侧设有另一侧基板，胶带收卷辊15设在另一侧基板上，并在整体处理箱体结构的顶部设有一组吊环；胶带基带放卷辊、净化室、上胶室、中间加热处理室、涂胶室、尾部加热处理室以及胶带收卷辊沿线性布置，自动连续化处理稳定可靠。One side of the overall processing box structure is provided with one side substrate, the tape base tape unwinding roller 1 is arranged on one side substrate, the other side of the overall processing box structure is provided with the other side substrate, and the tape winding roller 15 is arranged on the other side. There is a set of lifting rings on one side of the substrate and the top of the overall processing box structure; tape base tape unwinding roller, clean room, gluing room, middle heating treatment room, glue coating room, tail heating treatment room and tape winding roller Along the linear arrangement, automatic continuous processing is stable and reliable.

净化室2的顶部设有净化风机3，净化风机和净化室之间过滤板4，过滤板可抽拉的设置在净化室的顶部，过滤板更换操作简便，除尘效果好。The top of the clean room 2 is provided with a purification fan 3, and a filter plate 4 between the purification fan and the clean room. The filter plate can be pulled out on the top of the clean room. The filter plate replacement operation is simple and the dust removal effect is good.

上胶室内设有用于对胶带基带下表面进行上胶的上胶辊5，上胶室内在上胶辊的下方设有用于向上胶辊底部外缘喷胶的胶液喷头6，在胶液喷头的下方设有胶液收集槽7，上胶辊的上缘与胶带基带下表面接触进行上胶；通过胶液喷头将软性涂层的胶液喷至上胶辊的下部辊面上，上胶辊旋转将胶液涂至胶带基带的下表面上，胶液喷头便于控制涂胶量，涂胶量太大不利于后续涂胶操作。The gluing chamber is provided with a gluing roller 5 for gluing the lower surface of the tape base belt. The gluing chamber is provided with a glue liquid nozzle 6 for spraying glue on the outer edge of the bottom of the upper rubber roller under the gluing chamber. There is a glue liquid collecting tank 7 below, and the upper edge of the glue roller is in contact with the lower surface of the tape base belt for gluing; the glue of the soft coating is sprayed onto the lower surface of the glue roller through the glue spray nozzle, and the glue is applied. The roller rotates to apply the glue to the lower surface of the tape base tape. The glue nozzle is easy to control the amount of glue applied. Too much glue is not conducive to the subsequent gluing operation.

涂胶室内设有用于在胶带软性涂层上涂胶的一对涂胶辊11，一对涂胶辊前后间隔并排设置，一对涂胶辊的下方设有辊刷13和涂胶槽12，辊刷位于一对涂胶辊的底部之间，辊辊的下部位于涂胶槽的胶液中，辊刷的上部侧边缘与对应侧涂胶辊的辊面接触；本发明中丙烯酸酯复合层涂胶需要保障具有较大涂胶量，采用该结构相对传统结构效果更好。The gluing chamber is provided with a pair of gluing rollers 11 for gluing on the soft coating of the tape. , the roller brush is located between the bottoms of a pair of glue rollers, the lower part of the roller roller is located in the glue solution of the glue coating tank, and the upper side edge of the roller brush is in contact with the roller surface of the corresponding side glue roller; The layer coating needs to ensure a large amount of glue, and the use of this structure is better than the traditional structure.

涂胶室内在一对涂胶辊的上方设有胶带定位板10，胶带从胶带定位板和一对涂胶辊之间通过，胶带定位板通过吊架9悬空设在涂胶室内，胶带定位板和吊架之间通过弹性连接结构相连，胶带定位板为下表面光滑的平板结构，通过胶带定位板的设置可提高涂胶的一致性，并能适用不同型号的胶带处理。In the gluing chamber, a tape positioning plate 10 is arranged above a pair of gluing rollers. The adhesive tape passes between the adhesive tape positioning plate and the pair of gluing rollers. The tape positioning plate is suspended in the gluing chamber through a hanger 9. It is connected with the hanger through an elastic connection structure. The tape positioning plate is a flat plate structure with a smooth lower surface. The setting of the tape positioning plate can improve the consistency of gluing and can be applied to different types of tapes.

尾部加热处理室14的长度大于中间加热处理室8的长度，并且尾部加热处理室内的温度高于中间加热处理室内的温度，胶带收卷辊通过升降结构16设在整体结构外部，升降结构可采用链条升降结构或气缸升降结构，便于胶带圈下圈操作。The length of the rear heating treatment chamber 14 is greater than the length of the middle heating treatment chamber 8, and the temperature in the rear heating treatment chamber is higher than that in the middle heating treatment chamber. The chain lifting structure or the cylinder lifting structure is convenient for the operation of the lower ring of the tape ring.

本发明锂离子电池用低表面能胶带在涂胶处理前展开通过净化室净化处理，通过前后两次连续涂胶处理，在中间形成软性涂层，改变传统胶带结构，洁净度高以及表面能相对较低，提升了胶带产品性能。The low surface energy adhesive tape for lithium ion battery of the present invention is unfolded before the gluing treatment and passed through purification treatment in a clean room, and through two consecutive gluing treatments before and after, a soft coating is formed in the middle, which changes the structure of the traditional adhesive tape, and has high cleanliness and surface energy. Relatively low, which improves the performance of tape products.

上述仅为对本发明较佳的实施例说明，上述技术特征可以任意组合形成多个本发明的实施例方案。The above description is only for the description of the preferred embodiments of the present invention, and the above technical features can be combined arbitrarily to form a plurality of embodiments of the present invention.

上面结合附图对本发明进行了示例性描述，显然本发明具体实现并不受上述方式的限制，只要采用了本发明的构思和技术方案进行的各种非实质性的改进，或未经改进将本发明的构思和技术方案直接应用于其它场合的，均在本发明的保护范围之内。The present invention has been exemplarily described above in conjunction with the accompanying drawings. Obviously, the specific implementation of the present invention is not limited by the above manner, as long as various insubstantial improvements made by the concept and technical solutions of the present invention are adopted, or the If the concept and technical solutions of the present invention are directly applied to other occasions, they all fall within the protection scope of the present invention.

Claims (9)

1.一种锂离子电池用低表面能胶带，包括胶带基带，其特征在于：所述胶带基带上设有软性涂层以及丙烯酸酯复合层，所述软性涂层先在胶带基带上胶成型，丙烯酸酯复合层再涂胶在软性涂层上成型，软性涂层位于胶带基带和丙烯酸酯复合层之间。1. a low surface energy adhesive tape for a lithium ion battery, comprising an adhesive tape base band, characterized in that: the adhesive tape base band is provided with a soft coating and an acrylate composite layer, and the soft coating is first glued on the adhesive tape base tape Forming, the acrylic composite layer is then glued and formed on the soft coating, and the soft coating is located between the tape base tape and the acrylic composite layer. 2.如权利要求1所述锂离子电池用低表面能胶带，其特征在于：所述软性涂层为柔性环氧树脂。2 . The low surface energy adhesive tape for lithium ion batteries according to claim 1 , wherein the soft coating is a flexible epoxy resin. 3 . 3.如权利要求1所述锂离子电池用低表面能胶带，其特征在于：所述丙烯酸酯复合层为丙烯酸酯单体和聚氨酯丙烯酸酯的混合涂层。3 . The low surface energy tape for lithium ion batteries according to claim 1 , wherein the acrylate composite layer is a mixed coating of acrylate monomer and urethane acrylate. 4 . 4.一种如权利要求1所述锂离子电池用低表面能胶带的处理工艺，其特征在于：所述处理工艺包括以下步骤：4. a processing technique of low surface energy adhesive tape for lithium ion battery as claimed in claim 1, is characterized in that: described processing technique comprises the following steps: 1)通过胶带基带放卷辊进行胶带基带放卷操作，胶带基带进入净化室净化处理；1) Carry out the tape base tape unwinding operation through the tape base tape unwinding roller, and the tape base tape enters the clean room for purification treatment; 2)从净化室出来的胶带基带进入上胶室进行软性涂层的上胶操作，再通过中间加热处理室进行加热处理；2) The tape base tape coming out of the clean room enters the gluing room to carry out the gluing operation of the soft coating, and then heats it through the intermediate heating treatment room; 3)加热处理后的胶带基带进入涂胶室进行丙烯酸酯复合层的涂胶操作，涂胶后的胶带进入尾部加热处理室内再次进行加热处理，从尾部加热处理室出来的胶带通过胶带收卷辊进行胶带收卷操作。3) The adhesive tape base tape after heat treatment enters the gluing room for the gluing operation of the acrylate composite layer, the glued tape enters the rear heating treatment room for heat treatment again, and the tape coming out of the rear heating treatment room passes through the tape winding roller Carry out the tape rewinding operation. 5.如权利要求4所述处理工艺，其特征在于：所述净化室、上胶室、中间加热处理室、涂胶室以及尾部加热处理室为依次对胶带处理的整体处理箱体结构，整体处理箱体结构的一侧设有一侧基板，胶带基带放卷辊设在一侧基板上，整体处理箱体结构的另一侧设有另一侧基板，胶带收卷辊设在另一侧基板上，并在整体处理箱体结构的顶部设有一组吊环。5. The process according to claim 4, wherein the clean room, the gluing room, the middle heating treatment room, the gluing room and the rear heating treatment room are the overall processing box structure for sequentially processing the tape, and the overall One side of the processing box structure is provided with one side substrate, the tape base tape unwinding roller is provided on one side substrate, the other side of the overall processing box structure is provided with the other side substrate, and the tape rewinding roller is provided on the other side substrate and a set of lifting rings are arranged on the top of the overall processing box structure. 6.如权利要求4所述处理工艺，其特征在于：所述净化室的顶部设有净化风机，净化风机和净化室之间过滤板，过滤板可抽拉的设置在净化室的顶部。6 . The process according to claim 4 , wherein a purification fan is arranged on the top of the clean room, and a filter plate between the purification fan and the clean room is provided on the top of the clean room in a drawable manner. 7 . 7.如权利要求4所述处理工艺，其特征在于：所述上胶室内设有用于对胶带基带下表面进行上胶的上胶辊，上胶室内在上胶辊的下方设有用于向上胶辊底部外缘喷胶的胶液喷头，在胶液喷头的下方设有胶液收集槽，上胶辊的上缘与胶带基带下表面接触进行上胶。7. The process according to claim 4, wherein the gluing chamber is provided with a gluing roller for gluing the lower surface of the tape base tape, and the gluing chamber is provided with a gluing roller below the gluing roller for gluing. A glue liquid nozzle for spraying glue on the outer edge of the bottom of the roller is provided with a glue liquid collecting groove under the glue liquid nozzle, and the upper edge of the glue roller is in contact with the lower surface of the tape base tape for gluing. 8.如权利要求4所述处理工艺，其特征在于：所述涂胶室内设有用于在胶带软性涂层上涂胶的一对涂胶辊，一对涂胶辊前后间隔并排设置，一对涂胶辊的下方设有辊刷和涂胶槽，辊刷位于一对涂胶辊的底部之间，辊辊的下部位于涂胶槽的胶液中，辊刷的上部侧边缘与对应侧涂胶辊的辊面接触。8. The process according to claim 4, characterized in that: the gluing chamber is provided with a pair of gluing rollers for gluing on the soft coating of the tape, a pair of gluing rollers are arranged side by side at intervals, and a pair of gluing rollers are arranged side by side. There are roller brushes and gluing grooves under the gluing rollers. The roller brushes are located between the bottoms of the pair of gluing rollers. The lower part of the rollers is located in the glue liquid of the gluing grooves. The roller surface of the glue roller is in contact. 9.如权利要求8所述处理工艺，其特征在于：所述涂胶室内在一对涂胶辊的上方设有胶带定位板，胶带从胶带定位板和一对涂胶辊之间通过，胶带定位板通过吊架悬空设在涂胶室内，胶带定位板和吊架之间通过弹性连接结构相连，胶带定位板为下表面光滑的平板结构。9. The process according to claim 8, characterized in that: in the gluing chamber, an adhesive tape positioning plate is arranged above a pair of gluing rollers, and the adhesive tape passes between the adhesive tape positioning plate and a pair of gluing rollers, and the adhesive tape passes between the adhesive tape positioning plate and the pair of gluing rollers. The positioning plate is suspended in the gluing chamber through the hanger, the tape positioning plate and the hanger are connected by an elastic connection structure, and the tape positioning plate is a flat plate structure with a smooth lower surface.
CN202111287724.5A 2021-11-02 2021-11-02 A kind of low surface energy adhesive tape for lithium ion battery Pending CN113881362A (en)

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