CN215008333U

CN215008333U - Battery core lamination device

Info

Publication number: CN215008333U
Application number: CN202121330256.0U
Authority: CN
Inventors: 何林; 刘巨粮
Original assignee: SHENZHEN LIGHTSTAR LASER TECHNOLOGY CO LTD
Current assignee: SHENZHEN LIGHTSTAR LASER TECHNOLOGY CO LTD
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-12-03
Anticipated expiration: 2031-06-15

Abstract

The embodiment of the utility model discloses electric core lamination device, including lamination platform and diaphragm assembly, lamination bench side sets up diaphragm assembly, diaphragm assembly is used for introducing the lamination platform with the diaphragm, the lamination bench is divided into a plurality of pole pieces according to the position of dividing the tangent line and is placed the district, the pole piece place the district in the lamination bench is two rows of multiseriate distributions, so that the pole piece in the lamination bench is two rows of multiseriate distributions. The utility model provides a pair of electricity core lamination device is through dividing a plurality of pole pieces that are two rows of multiseriate distributions according to the position of dividing the tangent line in the lamination bench and place the district, so that the pole piece in the lamination bench is two rows of multiseriate distributions, realizes the lamination technology that a plurality of pole pieces piled up simultaneously in same lamination bench, has improved lamination efficiency, once covers the tectorial membrane technology of many pole pieces through the diaphragm assembly, improves tectorial membrane efficiency, effectively shortens production cycle, has saved the time cost.

Description

Battery core lamination device

Technical Field

The utility model relates to a lithium cell lamination technical field especially relates to an electricity core lamination device.

Background

The lithium battery lamination technology is a lithium battery manufacturing technology which uses a diaphragm to isolate a positive electrode plate and a negative electrode plate (a positive electrode plate and a negative electrode plate), and sequentially laminates the electrode plates and the diaphragm to form a battery core. The basic principle and the working process are as follows: the coiled diaphragm is pulled out by the diaphragm assembly, the diaphragm is folded into a Z shape by the reciprocating motion of the lamination table or the diaphragm assembly, and meanwhile, the positive and negative plates are alternately placed between the diaphragms by a manipulator or other transfer devices and are separated by the diaphragm. And repeating the process for many times to finally form the lithium battery laminated body with a certain thickness.

The existing lamination device adopts a single-sheet pole piece lamination mode, only one pole piece is placed on the lamination platform for lamination through a mechanical arm or other transfer devices at a time, a plurality of pole pieces cannot be placed on the same lamination platform at the same time, and the plurality of pole pieces cannot be laminated at the same time, so that the lamination efficiency is low, and the production period is long.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that an electricity core lamination device is provided and is carried out the lamination simultaneously at same lamination platform in order to realize a plurality of pole pieces, improves lamination efficiency.

In order to solve the technical problem, the purpose of the utility model is realized through following technical scheme: the utility model provides a battery core lamination device includes lamination platform and diaphragm assembly, lamination bench side sets up diaphragm assembly, diaphragm assembly is used for introducing the diaphragm lamination platform, the lamination bench is divided into a plurality of pole pieces according to the position of dividing the tangent line and is placed the district, the pole piece place the district in the lamination bench is two rows of multiseriate distributions to make the pole piece in the lamination bench is two rows of multiseriate distributions.

The further technical scheme is as follows: the battery core lamination device further comprises a splitting mechanism used for cutting the diaphragm according to the splitting line.

The further technical scheme is as follows: the battery cell lamination device further comprises a manipulator, and the manipulator is arranged at a preset position and used for carrying the pole pieces.

The further technical scheme is as follows: the size of the pole piece placing area is larger than that of the pole piece.

The utility model has the advantages of: the utility model provides a pair of electricity core lamination device is through dividing a plurality of pole pieces that are two rows of multiseriate distributions according to the position of dividing the tangent line in the lamination bench and place the district, so that the pole piece in the lamination bench is two rows of multiseriate distributions, realizes the lamination technology that a plurality of pole pieces piled up simultaneously in same lamination bench, has improved lamination efficiency, once covers the tectorial membrane technology of a plurality of pole pieces through the diaphragm assembly, improves tectorial membrane efficiency, effectively shortens production cycle, has saved the time cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

Fig. 1 is a front view of a cell lamination device according to an embodiment of the present invention;

fig. 2 is a top view of a cell lamination device provided by an embodiment of the present invention without a diaphragm assembly.

The labels in the figures illustrate: 40. a lamination table; 401. dividing a tangent line; 402. a pole piece placement area; 50. a diaphragm assembly; 10. a first pole piece; 20. a second pole piece; 30. a diaphragm.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that the terms "comprises" and/or "comprising," when used in this specification and the appended claims, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

Please refer to fig. 1 to 2, fig. 1 is a front view of a battery cell lamination device provided in an embodiment of the present invention, the battery cell lamination device includes a lamination table 40 and a diaphragm assembly 50, the diaphragm assembly 50 is disposed above the lamination table 40, the diaphragm assembly 50 is used to introduce the diaphragm 30 into the lamination table 40, the lamination table 40 is divided into a plurality of pole piece placement areas 402 according to the position of a parting line 401, and the pole piece placement areas 402 are distributed in two rows and multiple columns on the lamination table 40, so that the pole pieces are distributed in two rows and multiple columns on the lamination table 40.

Wherein, the dividing line 401 includes a longitudinal dividing line and a transverse dividing line, which are respectively arranged along the longitudinal direction and the transverse direction of the lamination table 40. The polarity of the pole pieces is positive and negative, so that the pole pieces can be divided into a first pole piece 10 and a second pole piece 20, the polarity of the first pole piece 10 is opposite to that of the second pole piece 20, the rows refer to transverse rows arranged along the transverse direction of the lamination table 40, and the rows refer to longitudinal rows arranged along the longitudinal direction of the lamination table 40. The battery core lamination device is divided into a plurality of pole pieces which are distributed in two rows and multiple columns according to the position of a tangent line 401 on the lamination table 40 to be arranged in an area 402, so that the pole pieces are distributed in two rows and multiple columns on the lamination table 40, the lamination process that the pole pieces are simultaneously stacked on the same lamination table 40 is realized, the lamination efficiency is improved, the membrane covering process for covering the pole pieces at one time through the membrane assembly 50 is adopted, the membrane covering efficiency is improved, the production period is effectively shortened, and the time cost is saved.

With continued reference to fig. 1 and 2, this embodiment provides an example in which a plurality of pole pieces are stacked simultaneously on the same lamination stage 40, the lamination stage 40 is disposed at the lowermost position, and the separator 30, the first pole piece 10, the separator 30, and the second pole piece 20 … … are stacked in sequence on the lamination stage 40 until the lamination number reaches a set value, and the lamination operation is completed. The adjacent pole pieces above and below the diaphragm 30 have opposite polarities, that is, the pole pieces are arranged and combined by a positive pole piece, a negative pole piece, a positive pole piece and a negative pole piece … … (or a negative pole piece, a positive pole piece, a negative pole piece and a positive pole piece … …).

The pole piece placement areas 402 are distributed in two rows and multiple columns on the lamination table 40, that is, the same row includes multiple pole piece placement areas 402, wherein the pole piece placement areas 402 in the same row are aligned. Of course, in some embodiments, the pole piece placement areas may be arranged in two rows and a single row on the lamination table, i.e. the tangent line 401 has only a transverse tangent line, and the number of the pole piece placement areas 402 is two, and they are arranged side by side along the longitudinal direction of the lamination table 40.

Preferably, the size of the pole piece placement area 402 is larger than that of the pole piece, so that the adjacent pole pieces are arranged at intervals, and the subsequent slitting operation is facilitated.

Specifically, the battery cell lamination device further comprises a slitting mechanism for slitting the diaphragm according to the slitting line so as to obtain a plurality of battery cell lamination bodies. Preferably, the battery cell lamination device further comprises a manipulator, and the manipulator is arranged at a preset position and used for simultaneously carrying a plurality of pole pieces. The number of the mechanical arms can be multiple, so that a plurality of pole pieces can be conveyed at the same time for lamination operation.

When the lamination device works, the diaphragm assembly introduces the diaphragm above the lamination table and covers the diaphragm on the lamination table; grabbing a plurality of pole pieces and placing the pole pieces according to a pole piece placing area on the lamination table; the diaphragm assembly introduces a diaphragm above the lamination table, covers the diaphragm on the pole piece in the pole piece placement area, and records the lamination times; judging whether the lamination frequency reaches a set value, continuously stacking the pole pieces and covering the diaphragm, wherein the polarity of the placed pole pieces is opposite to that of the pole pieces in the last lamination of the pole piece placing area; if the lamination times reach a set value, the cell stacking is finished; and cutting the diaphragm according to the cutting line to obtain a plurality of battery cell laminated bodies.

The stacking machine comprises a plurality of pole pieces placing areas, a manipulator, a stacking machine and a stacking machine, wherein each pole piece placing area corresponds to each pole piece placing area, only one pole piece can be placed at one time, the number of the grabbed pole pieces is a preset value, the preset value is any limited natural number which is more than or equal to 2, so that the multiple pole pieces can be stacked on the same stacking table at the same time, the stacking efficiency is improved, the grabbing, carrying and stacking of the multiple pole pieces are carried out at the same time through the manipulator, and the stacking time is shortened.

To sum up, the utility model provides a pair of electric core lamination device is through dividing a plurality of pole pieces that are two rows of multiseriate distributions according to the position of dividing the tangent line in the lamination bench and place the district to make the pole piece in the lamination bench is two rows of multiseriate distributions, realizes the lamination technology that a plurality of pole pieces piled up in same lamination bench simultaneously, has improved lamination efficiency, once covers the tectorial membrane technology of a plurality of pole pieces through diaphragm assembly, improves tectorial membrane efficiency, effectively shortens production cycle, has saved the time cost.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope of the present invention, and these modifications or replacements should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. The utility model provides an electricity core lamination device, its characterized in that, includes lamination platform and diaphragm assembly, lamination bench side sets up diaphragm assembly, diaphragm assembly is used for introducing the lamination platform with the diaphragm, the lamination bench is divided into a plurality of pole pieces according to the position of dividing the tangent line and is placed the district, the pole piece place the district in lamination bench is two rows of multiseriate distributions to make the pole piece in lamination bench is two rows of multiseriate distributions.

2. The cell lamination device according to claim 1, further comprising a slitting mechanism for slitting the separator according to the slitting line.

3. The cell lamination device of claim 1, further comprising a manipulator disposed at a predetermined location for carrying the pole pieces.

4. The cell lamination device of claim 1, wherein the size of the pole piece placement area is larger than the size of the pole piece.