CN213110234U

CN213110234U - Pole piece material box for lithium ion battery

Info

Publication number: CN213110234U
Application number: CN202021678940.3U
Authority: CN
Inventors: 何玉杰; 侯宇明; 刘昀; 胡新华; 罗朝晖; 岳耀立; 许少辉; 曹俊义; 何伟
Original assignee: Tianjin EV Energies Co Ltd
Current assignee: Tianjin EV Energies Co Ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-05-04
Anticipated expiration: 2030-08-11

Abstract

The utility model provides a pole piece material box for a lithium ion battery, a material box body and a bottom plate, wherein the material box body is of a cylindrical structure with a convex cross section, the bottom plate is arranged at the bottom in the material box body, the material box body comprises a first plate, a second plate, a third plate, a fourth plate and a connecting plate, the sides of the first plate, the second plate, the third plate and the fourth plate are sequentially connected to form a cavity, the connecting plate is fixedly connected to the bottom of the cavity to form the material box body, the middle part of the connecting plate is provided with a positioning hole, the middle part of the first plate is of a convex structure to form a position avoiding groove matched with a battery pole piece, the top of the first plate is provided with two first stand columns, the top of the third plate is provided with, two third stand columns symmetrical to the two first stand columns, two second stand columns arranged at the top of the second plate, and two fourth stand columns symmetrical to the two second stand columns arranged at the top of the fourth plate. The utility model discloses get rid of the manual pole piece action of touching of operation personnel, the pole piece that avoids personnel's operation to arouse is bad, the battery short circuit is bad.

Description

Pole piece material box for lithium ion battery

Technical Field

The utility model belongs to lamination type lithium ion battery field especially relates to a pole piece magazine for lithium ion battery.

Background

After a pole roll of the laminated lithium ion battery is subjected to die cutting by a hardware die cutting machine, a single pole piece is collected into a discharging material box of the die cutting machine, the discharging material box is full of materials and then is alarmed to shut down, and an operator manually takes out the single pole piece from the die cutting material box and puts the single pole piece into a baking plastic box. And (4) placing the baked material box into a vacuum box for high-temperature baking after the material box is full of materials. After the pole pieces are baked in vacuum at high temperature, the operator manually takes the pole piece baking material box out and puts the pole piece baking material box into a material loading material box of the lamination machine. And taking the pole pieces from the feeding material box by the manipulator of the laminating machine to perform laminating operation. The processing and the transferring from the die cutting and the blanking to the lamination feeding are completed through the actions. At present, three material boxes are used in the operation process from die cutting, blanking and baking to lamination feeding, wherein the three material boxes comprise a die cutting blanking material box, a baking material box and a lamination feeding material box. The design of the three material boxes has defects, and the phenomenon that the four corners of the pole piece collide with the inner wall of the material box to cause the damage of the pole piece exists in the using process. At present, the operation process from die cutting, blanking, baking to lamination feeding relates to two manual operations of operators, wherein the operators take out the pole pieces from a die cutting blanking material box and put the pole pieces into a baking material box, and take out the pole pieces from the baking material box and put the pole pieces into a lamination feeding material box.

Disclosure of Invention

In view of this, the utility model aims at providing a pole piece magazine for lithium ion battery accomplishes the transportation purpose of pole piece through the magazine circulation, gets rid of the manual touching pole piece action of operation personnel, avoids the pole piece that personnel's operation arouses bad, the battery short circuit is bad.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a pole piece material box for a lithium ion battery comprises a material box body and a bottom plate, wherein the material box body is of a cylindrical structure with a convex cross section, the bottom plate is arranged at the bottom in the material box body, the material box body comprises a first plate, a second plate, a third plate, a fourth plate and a connecting plate, the first plate, the second plate, the third plate and the fourth plate are sequentially connected to form a cavity, the connecting plate is fixedly connected to the bottom of the cavity to form the material box body, a positioning hole is formed in the middle of the connecting plate, a convex structure is arranged in the middle of the first plate to form a position avoiding groove matched with a battery pole piece, two first stand columns are arranged at the top of the first plate, and the middle line of the third plate is used as a, two third stand columns symmetrical to the two first stand columns, two second stand columns arranged on the top of the second plate, and two fourth stand columns symmetrical to the two second stand columns and based on the central line of the material box body and arranged on the top of the fourth plate.

Furthermore, a first bent plate is welded on the tops of two first stand columns respectively, a second bent plate is welded on the tops of two second stand columns respectively, a third bent plate is welded on the tops of two third stand columns respectively, and a first bent plate is welded on the tops of two fourth stand columns respectively.

Furthermore, the first bent plate, the second bent plate, the third bent plate and the fourth bent plate have the same structure, the welding positions are bent outwards relative to the material box body, and the bending angle of the first bent plate is 25-35 degrees.

Furthermore, four corners of the material box body adopt a bending process, the material box body is of a bent angle structure, and the bent angle is thinned to the thickness of 1.5mm-2.0 mm.

Furthermore, the corner parts of the four corners of the material box body are provided with a plurality of corner through holes, and the four sides of the material box body are respectively provided with a plurality of observation holes.

Further, one side of the material box body is provided with a two-dimensional code used for identifying the number.

Furthermore, the outline of the bottom plate is matched with the outline of the material box body, one side of the bottom plate is provided with a positioning column, and the positioning column is provided with a detection hole.

Furthermore, the four corners of bottom plate is equipped with an mosaic block respectively, and the material of mosaic block is the teflon, and every mosaic block all is through screw fixed connection to bottom plate, and the screw tip is the counter bore design.

Further, the lower surface of bottom plate is equipped with magnet.

Furthermore, two of the material box bodies are respectively provided with a handle.

Compared with the prior art, a lithium ion battery pole piece magazine have following advantage:

(1) a lithium ion battery uses pole piece magazine, can satisfy cross cutting unloading, toast and three kinds of functions of lamination material loading simultaneously.

(2) A pole piece magazine for lithium ion battery, can avoid the staff to touch the pole piece, lead to the condition of the bad or battery short circuit of pole piece to appear.

(3) A pole piece magazine for lithium ion battery, carry out bending design to the bight in magazine four corners, avoid unloading transportation in-process pole piece and magazine to collide with.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic view of a lithium ion battery pole piece magazine according to an embodiment of the present invention;

fig. 2 is a top view of a lithium ion battery electrode sheet material box according to an embodiment of the present invention;

fig. 3 is a schematic view of a bottom plate according to an embodiment of the present invention.

Description of reference numerals:

1. a magazine body; 11. a first board; 111. a first upright post; 112. a first bending plate; 12. a second plate; 13. a third plate; 14. a fourth panel; 15. a connecting plate; 151. positioning holes; 16. a position avoiding groove; 17. A corner through hole; 18. an observation hole; 19. a handle; 2. a base plate; 21. embedding blocks; 22. a detection hole; 23. and a magnet.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

A pole piece material box for a lithium ion battery comprises a material box body 1 and a bottom plate 2, wherein the material box body 1 is of a cylindrical structure with a convex cross section, the length of the material box body 1 is 168mm, the width of the material box body 1 is 94mm, and the height of the material box body is 230mm, the bottom plate 2 is arranged at the bottom in the material box body 1, the material box body 1 comprises a first plate 11, a second plate 12, a third plate 13, a fourth plate 14 and a connecting plate 15, the side edges of the first plate 11, the second plate 12, the third plate 13 and the fourth plate 14 are sequentially connected to form a cavity, the connecting plate 15 is fixedly connected to the bottom of the cavity to form the material box body 1, a positioning hole 151 is formed in the middle of the connecting plate 15, the material box body 1 is placed on a base for die cutting blanking, the positioning hole 151 can play a positioning function to improve the stability between the material box body 1 and the base, a convex structure is arranged in the middle of the first plate 11, the top of the third plate 13 is provided with two third columns which are symmetrical to the two first columns 111 by taking the central line of the material box body 1 as a reference, the top of the second plate 12 is provided with two second columns, and the top of the fourth plate 14 is provided with two fourth columns which are symmetrical to the two second columns by taking the central line of the material box body 1 as a reference.

A bent plate 112 is welded at the top of two first upright posts 111 respectively, a bent plate two is welded at the top of two second upright posts respectively, a bent plate three is welded at the top of two third upright posts respectively, and a bent plate 112 is welded at the top of two fourth upright posts respectively.

The first bent plate 112, the second bent plate, the third bent plate and the fourth bent plate are identical in structure, welding positions are bent outwards relative to the material box body 1, the outward bending is to enable batteries to enter the material box body 1, the bending angle of the first bent plate 112 is 25-35 degrees, and a better solution effect can be achieved within the angle range again.

Four corners of the material box body 1 are bent by adopting a bending process, the material box body is of a bent angle structure, the bent angle is thinned, the thinned thickness is 1.5mm-2.0mm, for example, the thickness of the material box body 1 is 3mm, the thinned thickness is 1.5mm, the thickness of the bent angle of the material box body 1 is 1.5mm, and the bent angle of the material box body 1 is easier to bend under the thickness.

The bent angle department in 1 four corners of magazine body all is equipped with a plurality of bight through-holes 17, and 1 four sides of magazine body are equipped with a plurality of observation holes 18 respectively, and the setting of angle through-hole and observation hole 18 is whether have the side or bight of the inside pole piece of convenient staff real-time check magazine to fall the material, hit piece, burr and cross cutting bad scheduling problem.

1 one side of magazine body is equipped with the two-dimensional code that is used for the identification number, binds the batch number of magazine code and pole piece through the two-dimensional code, and during the lamination, the lamination machine automatic reading magazine two-dimensional code, the faster information of location pole piece of being convenient for.

The profile of bottom plate 2 agrees with the profile of magazine body 1 mutually, and 2 one sides of bottom plate are equipped with the reference column, and the reference column is equipped with inspection hole 22, and the pole piece can cover inspection hole 22 when placing on bottom plate 2, utilizes optical fiber detection can detect the existence of pole piece this moment, if do not detect the pole piece through inspection hole 22, then can make the lamination machine lack the material and report to the police.

The four corners of bottom plate 2 are equipped with an mosaic block 21 respectively, and mosaic block 21's material is teflon, and teflon has good insulating effect, can avoid bottom plate 2 and magazine body 1's inner wall contact friction to produce the metal fillings simultaneously, and teflon's mosaic block 21's thickness is 4mm-8mm, and every mosaic block 21 all is through screw fixed connection to bottom plate 2, and the screw tip is the counter bore design.

The lower surface of bottom plate 2 is equipped with magnet 23, and magnet 23 is used for strengthening the stability of being connected before cross cutting machine unloading, lamination machine material loading jacking device and bottom plate 2.

Two magazine bodies 1 are equipped with a handle 19 respectively, and the staff of being convenient for carries magazine body 1, and positive magazine and negative pole magazine are distinguished respectively to magazine body 1 simultaneously, because the outward appearance of positive magazine and negative pole magazine is similar, then can set up the handle 19 of different shapes or colour at positive magazine and negative pole magazine for distinguish positive magazine and negative pole magazine.

A pole piece material box for a lithium ion battery has the working principle that battery pole pieces are placed in a material box body 1, and then the battery pole pieces are ejected and loaded one by one through die cutting and blanking.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a pole piece magazine for lithium ion battery which characterized in that: the material box comprises a material box body and a bottom plate, wherein the material box body is of a cylindrical structure with a convex cross section, the bottom plate is arranged at the bottom in the material box body, the material box body comprises a first plate, a second plate, a third plate, a fourth plate and a connecting plate, the first plate, the second plate, the third plate and the fourth plate are sequentially connected to form a cavity, the connecting plate is fixedly connected to the bottom of the cavity to form the material box body, a positioning hole is formed in the middle of the connecting plate, a protruding structure is formed in the middle of the first plate to form a position avoiding groove matched with a battery pole piece, two first stand columns are arranged at the top of the first plate, the top of the third plate is provided with two third stand columns which are symmetrical to the two first stand columns by taking the central line of the material box body as the reference, two second stand columns are arranged at the top of the second plate by taking the central line of the material box body.

2. The pole piece material box for the lithium ion battery according to claim 1, characterized in that: a bent plate is welded respectively at two stand top, and a bent plate is welded respectively at two stand top No. two, and a bent plate is welded respectively at two stand top No. three, and a bent plate is welded respectively at two stand top No. four.

3. The pole piece material box for the lithium ion battery according to claim 2, characterized in that: the first bent plate, the second bent plate, the third bent plate and the fourth bent plate are identical in structure, the welding positions are outwards bent relative to the material box body, and the bending angle of the first bent plate is 25-35 degrees.

4. The pole piece material box for the lithium ion battery according to claim 1, characterized in that: the four corners of the material box body adopt a bending process and are of a bent corner structure, and the bent corners are thinned to be 1.5-2.0 mm thick.

5. The pole piece material box for the lithium ion battery according to claim 4, wherein: the bent corners of the four corners of the material box body are provided with a plurality of corner through holes, and the four sides of the material box body are respectively provided with a plurality of observation holes.

6. The pole piece material box for the lithium ion battery according to claim 1, characterized in that: and one side of the material box body is provided with a two-dimensional code for identifying the number.

7. The pole piece material box for the lithium ion battery according to claim 1, characterized in that: the outline of the bottom plate is matched with the outline of the material box body, one side of the bottom plate is provided with a positioning column, and the positioning column is provided with a detection hole.

8. The pole piece material box for the lithium ion battery according to claim 1, characterized in that: the four corners of bottom plate is equipped with an mosaic block respectively, and the material of mosaic block is the teflon, and every mosaic block all is through screw fixed connection to bottom plate, and the screw tip is the counter bore design.

9. The pole piece material box for the lithium ion battery according to claim 1, characterized in that: the lower surface of the bottom plate is provided with a magnet.

10. The pole piece material box for the lithium ion battery according to claim 1, characterized in that: two of the material box bodies are respectively provided with a handle.