Battery pole roll packaging unit

Abstract

A battery pole roll packaging unit comprises a pole roll set and a vacuumized aluminum foil bag arranged on the pole roll set in a sleeving mode, and the pole roll set comprises a rolling shaft, an electrode roll material arranged on the rolling shaft in a rolling mode and a protection assembly arranged on the electrode roll material in a sleeving mode. The electrode coiled material is wound on the reel, the coiled material is wrapped by the protection assembly, and then the coiled material and the protection assembly are put into the aluminum foil bag together to be vacuumized and heat-sealed to form a closed vacuum environment, so that oxidation, crystallization and other reactions caused by direct contact between the electrode coiled material and external gas are avoided, and the stable quality of the coiled material is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of battery pole roll packaging units. BACKGROUND

[0002] With the global popularity and development of electric vehicles, the manufacture of batteries often faces the situation of cross-border transportation of raw materials and materials. As an important component of battery cells, the quality and performance of battery pole rolls directly affect the energy density, charge and discharge rate and cycle life of batteries.

[0003] Therefore, it is a market demand to provide a battery pole roll packaging unit that can prevent oxidation, crystallization and other reactions of battery pole rolls during transportation, facilitate handling, and is suitable for land, sea and air transportation. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to provide a battery pole roll packaging unit.

[0005] To solve the above technical problems, the utility model adopts the technical scheme: a battery pole roll packaging unit, comprising a pole roll group, a vacuumized aluminum foil bag sleeved on the pole roll group, the pole roll group comprising a reel, an electrode roll material wound on the reel, and a protection assembly sleeved on the electrode roll material.

[0006] In some embodiments, the protection assembly comprises a PVC film layer sleeved on the electrode roll material, two baffles respectively sleeved on the reel and located at both ends of the electrode roll material, a plastic cylinder sleeved on the PVC film, and two suction plastic discs respectively sleeved and clamped on the reel and then sleeved on the end of the plastic cylinder. Each side of the baffle is embedded in the end of the plastic cylinder or abuts against the edge of the end of the plastic cylinder.

[0007] In some embodiments, the reel has a boss in the middle for winding the electrode roll material, and the electrode roll material is wound layer by layer on the boss. Two baffles are respectively arranged at the front and rear ends of the boss, and the ends of the boss respectively protrude from the electrode roll material, so that the ends of the electrode roll material form a non-contact gap with the corresponding baffle.

[0008] In some embodiments, the non-contact gap has a width of 3-7 cm.

[0009] In some embodiments, the PVC film layer is positioned by adhesive tape winding.

[0010] In some embodiments, the surface of the suction plastic disc is provided with a tolerance line groove that can adapt to a variety of diameters of the reel.

[0011] In some embodiments, the total length of the reel shaft is 1.4-1.5m, the shaft length of the boss is 0.96-1.14m, and the width of the electrode roll material is 0.9-1m.

[0012] The scope of the present application is not limited to the technical solutions formed by the specific combinations of the above technical features, and should also cover other technical solutions formed by any combination of the above technical features or their equivalent features. For example, the technical solutions formed by the mutual replacement of the above features and the technical features disclosed in the present application (but not limited to) having similar functions.

[0013] Due to the use of the above technical solutions, the present application has the following advantages compared with the prior art: the battery electrode roll packaging unit has the following advantages:

[0014] 1. After winding the electrode roll material on the reel and wrapping the protective assembly outside the roll, they are put into an aluminum foil bag to form a sealed vacuum environment by vacuumizing and heat sealing, which eliminates air and humidity and avoids oxidation and crystallization caused by direct contact of the electrode roll material with external gas, thereby ensuring stable quality of the roll material.

[0015] 2. The protective assembly enables the electrode roll material to have certain resistance to external impact.

[0016] 3. The reel also wrapped in the aluminum foil bag has its two ends extending from the two sides of the electrode roll material, so that the two ends of the reel can be clamped, lifted and transported during transportation, without affecting the electrode roll material. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic view of the electrode roll group;

[0018] Figure 2 is an exploded schematic view of the electrode roll group structure;

[0019] Figure 3 is a schematic view of the electrode roll material and reel structure;

[0020] 1. Reel; 11. Boss; 2. Electrode roll material; 3. PVC film layer; 4. Baffle; 5. Plastic cylinder; 6. Plastic soft disc. DETAILED DESCRIPTION

[0021] The battery electrode roll packaging unit comprises an electrode roll group as shown in Figures 1-2 and an aluminum foil bag (not shown) wrapped around the electrode roll group.

[0022] As shown in Figure 2 , the electrode roll group comprises a reel 1, an electrode roll material 2 wound on the reel 1, and a protective assembly wrapped around the electrode roll material 2.

[0023] As shown inFigure 1 、 2 As shown in the figure, the middle of the reel 1 has a boss for winding the electrode roll 2, and the electrode roll 2 is wound on the boss 11.

[0024] The protection assembly includes a PVC film layer 3 wrapped on the outermost surface of the electrode roll 2, two baffles 4 respectively sleeved on the reel 1 and located at both ends of the electrode roll 2, a plastic cylinder 5 sleeved on the PVC film 3 and the two end baffles 4, and two suction plastic soft discs 6 respectively sleeved and clamped on the reel 1 and sleeved on the corresponding end of the plastic cylinder 5.

[0025] The PVC film layer 3 positions the electrode roll 2 and prevents it from spreading by winding with adhesive tape.

[0026] In this embodiment, the total length of the reel 1 is 1.5 m, the length of the boss is 1.1 m, and the width of the electrode roll 2 is 1 m. The length of the boss 11 is longer than the width of the electrode roll 2, so that the two ends of the boss 11 respectively protrude from the electrode roll 2, and the two baffles 4 are respectively located at the two ends of the boss in the axial direction, so that a gap of about 5 cm is formed between the baffles 4 and the electrode roll 2, avoiding direct contact between the baffles 4 and the edges of the electrode roll 2, and ensuring the quality of the roll.

[0027] In this embodiment, the suction plastic soft disc 6 is provided with a radial extending tolerance line groove on the surface, which can adapt to reels 1 of various diameters and can be clamped on the reel 1.

[0028] After the installation of the electrode roll group is completed, an aluminum foil bag is sleeved on the outside, and the aluminum foil bag is subjected to vacuumizing and heat sealing treatment. When packaging, the outermost two ends of the electrode roll group are protected by the suction plastic soft disc 6 and the hard plastic cylinder 5, which can prevent the electrode roll from being squeezed and collided due to the compression of the vacuumizing space.

[0029] The packaging method of the battery pole roll packaging unit includes the following steps:

[0030] Step S1, winding the electrode roll on the boss of the reel;

[0031] Step S2, wrapping a layer of PVC film on the outermost surface of the electrode roll, and winding with adhesive tape to prevent loosening;

[0032] Step S3, sleeving baffles on the reel and at both ends of the electrode roll, and the two baffles are respectively located at the two ends of the boss in the axial direction;

[0033] Step S4, sleeving a plastic cylinder on the PVC film and the two end baffles;

[0034] Step S5, sleeving and clamping the suction plastic soft disc on the reel and at both ends of the plastic cylinder, and completing the assembly of the electrode roll group;

[0035] Step S6, putting the assembled pole roll group into an aluminum foil bag, sealing the opening of the aluminum foil bag and vacuumizing the aluminum foil bag to form a battery pole roll packaging unit.

[0036] The above examples are only for illustrating the technical concept and characteristics of the present application, and the purpose is to enable those skilled in the art to understand the content of the present application and to implement it, and cannot limit the protection scope of the present application. Any equivalent changes or modifications made in accordance with the spirit and essence of the present application shall be covered within the protection scope of the present application.

Claims

1. A battery pole wrap packaging unit, characterized by: The application relates to an electrode roll set, a vacuumized aluminum foil bag sleeved on the electrode roll set, the electrode roll set comprising a reel (1), an electrode roll (2) wound on the reel (1), a protection assembly sleeved on the electrode roll (2), the protection assembly comprising a PVC film layer (3) sleeved on the electrode roll (2), two baffle plates (4) respectively sleeved on the reel (1) and located at two ends of the electrode roll (2), a plastic cylinder (5) sleeved on the PVC film (3), two plastic suction soft discs (6) respectively sleeved and clamped on the reel (1) and then sleeved on end portions of the plastic cylinder (5), and the baffle plate (4) on each side is embedded in an end portion of the plastic cylinder (5) or abuts against an edge portion of the end portion of the plastic cylinder (5).

2. The battery pole wrap packaging unit of claim 1, wherein: The reel (1) has a boss (11) in the middle for winding the electrode roll (2), the electrode roll (2) is wound on the boss layer by layer, the two baffle plates (4) are respectively arranged at the front and back ends of the boss, and the two ends of the boss respectively extend out of the electrode roll (2), so that the two ends of the electrode roll (2) and the corresponding baffle plates (4) form anti-touch gaps.

3. The battery pole wrap packaging unit of claim 2, wherein: The anti-touch gap has a width of 3-7 cm.

4. The battery pole wrap packaging unit of claim 1, wherein: The PVC film layer (3) is positioned by being wound with adhesive tape.

5. The battery pole wrap packaging unit of claim 1, wherein: The surface of the plastic suction soft disc (6) is provided with a tolerance line groove capable of adapting to various diameter reals.

6. The battery pole wrap packaging unit of claim 2, wherein: The total length of the reel (1) is 1.4-1.5 m, the length of the boss is 0.96-1.14 m, and the width of the electrode roll (2) is 0.9-1 m.

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