Battery cell manual lamination tool

By designing a tooling for manual cell stacking, and using an integrally molded bakelite board with rounded corners, the problems of high internal resistance, polarization, and poor heat dissipation of traditional wound cells are solved, thereby improving the stability and safety of the battery's internal structure. This tooling is suitable for high-energy-density and high-safety pouch batteries.

CN223884429UActive Publication Date: 2026-02-06XIAMEN XINSHUNENG ELECTRIC POWER TECH CO LTD
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Patent Information

Application Number
CN202520299115.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-02-06
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Traditional wound cells suffer from high internal resistance, polarization issues, poor heat dissipation, uneven battery thickness, and the risk of thermal runaway. Furthermore, the stacking process makes it difficult to achieve precise alignment of the positive and negative tabs and the separator, resulting in insufficient battery performance and safety.

Method used

Design a tooling for manual stacking of battery cells. It is made of bakelite board in one piece, with rounded corners and manual adhesive application positions to ensure precise alignment of the positive electrode tab, negative electrode tab and separator, avoiding misalignment and short circuit. The dual-outlet design of the electrode tab is adopted to improve production efficiency and safety.

Benefits of technology

It improves the stability and safety of the internal structure of the battery cell, increases the energy density and production efficiency of the battery, and reduces the risk of internal short circuits and fires, making it suitable for the development of high-energy-density and high-safety pouch batteries.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a manual battery cell lamination tool, and relates to the technical field of battery cell processing tools. Comprising a tool body, round corners and manual rubberizing positions, the four corners of the tool body are provided with the round corners for avoiding lamination dislocation, and the two ends of a bottom plate of the tool body are provided with the manual rubberizing positions. The positioning device is suitable for all positive and negative bidirectional laminated cells, can accurately position the positive pole lug, the negative pole lug and the diaphragm, ensures the alignment degree and good coating condition of the positive pole piece, the negative pole piece and the diaphragm, and avoids short circuit, fire and the like in the cells caused by dislocation and the like.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of electric core processing frock, specifically relates to a kind of electric core manual lamination frock. BACKGROUND

[0002] Current traditional winding electric core internal resistance is higher and polarization problem is big, because winding process positive and negative pole has only single lug, part of voltage will be consumed in battery internal polarization process, leading to the charge-discharge rate performance of battery is poorer;Poor heat dissipation effect: winding process is not easy to operate the thermal isolation measure between electric core, improper handling easily leads to local overheating, and then causes heat runaway;Battery thickness is difficult to control: because the internal structure of electric core manufactured by winding process is not uniform, the thickness of lug, separator end and both sides of electric core is prone to be uneven.

[0003] Current soft package battery develops towards high specific energy, high safety, high life diversification, the utility model discloses a kind of lamination frock for solving the existing lamination problem.The frock is applicable to large electric core sample and small batch trial production. INVENTION CONTENTS

[0004] In view of the deficiencies existing in the prior art, the utility model aims at providing a kind of electric core manual lamination frock, it is applicable to all positive, negative two-way laminated electric core, can accurately position positive lug, negative lug, separator, and ensure positive pole piece, negative pole piece, separator alignment and good coating condition, avoid the internal short circuit of electric core, fire etc. caused by misplacement etc.

[0005] In order to realize the above-mentioned purpose, the utility model is realized through the following technical scheme: a kind of electric core manual lamination frock, including frock body, round angle and manual adhesive position, the four corners of frock body are provided with the round angle to avoid lamination misplacement, and the bottom plate both ends of frock body are provided with manual adhesive position.

[0006] As preferred, the body is integrally formed with bakelite board.

[0007] As preferred, the manual adhesive position adopts concave structure.

[0008] As preferred, the other two sides of the bottom of the frock body are provided with lug double-out position 4.

[0009] As preferred, the manual adhesive position is provided with multiple.

[0010] The utility model has the following beneficial effects:

[0011] 1, frock structure is integrally formed with bakelite board, which reduces the outer frame of lamination frock and the overall volume of frock;

[0012] 2. The tooling is composed of four rounded corners, which can prevent misalignment of stacked pieces, make the size and structure easy to control, and prevent deformation.

[0013] 3. Leave blank spaces at both ends of the tooling base plate for manually applying fixing tape after stacking the battery cells.

[0014] The stacked structure makes full use of corner space, resulting in approximately 5% higher energy density. In terms of deformation and expansion forces, the stacked structure offers more stable dimensional stability and better heat dissipation without bending. This tooling is customizable, easy to use, and cost-effective, while also significantly improving production efficiency. Therefore, for the lithium battery industry, the stacking process is more suitable for the long-term development of pouch batteries and represents an important trend in the future development of pouch batteries. Attached Figure Description

[0015] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments;

[0016] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0018] Reference Figure 1 The specific embodiment adopts the following technical solution: a tooling for manual stacking of battery cells, including a tooling body 1, rounded corners 2 and manual adhesive application positions 3. The four corners of the tooling body 1 are provided with rounded corners 2 to avoid misalignment of the stacked cells, and the two ends of the bottom plate of the tooling body 1 are provided with manual adhesive application positions 3.

[0019] It is worth noting that the main body 1 is integrally molded from bakelite board.

[0020] It is worth noting that the manual adhesive application position 3 has a concave structure.

[0021] It is worth noting that the tooling body 1 has dual-outlet pole tabs 4 on the other two sides of its bottom.

[0022] In addition, there are multiple manual adhesive application positions 3.

[0023] This specific implementation method is applicable to all bidirectional stacked battery cells, and can accurately position the positive and negative electrode tabs and separator, as well as ensure the alignment and good coverage of the positive and negative electrode plates and separator, avoiding internal short circuits and fires caused by misalignment. During model changes or small-batch trial production, manual stacking is often used to manufacture battery cells.

[0024] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A cell hand stacking tool, characterized by, Including tooling body (1), fillet (2) and manual rubber position (3), the four corners of tooling body (1) are provided with fillet (2) to avoid lamination misplacement, and the bottom plate of tooling body (1) is provided with manual rubber position (3) at both ends.

2. The cell manual lamination jig of claim 1, wherein, The body (1) is integrally formed by bakelite plate.

3. The cell manual lamination jig of claim 1, wherein, The manual rubber position (3) adopts concave structure.

4. The cell manual lamination tooling of claim 1, wherein, The tooling body (1) is additionally provided with tab double-out position (4) on the other two sides of the bottom.

5. The cell manual lamination tooling of claim 1, wherein, The manual rubber position (3) is provided with multiple.