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Polymer battery packaging structure

A packaging structure, polymer technology, applied in secondary batteries, circuits, electrical components, etc., can solve the problems of space limitation of the volume-to-capacity ratio of cells, difficult to achieve, and no solutions have been found, so as to improve battery capacity. Volume ratio, the effect of realizing the volume of the cell

Inactive Publication Date: 2009-04-08
HUIZHOU DESAY BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

See Figures 6 and 7. Due to the design of the mobile phone, there is no rigid regulation on the output terminal of the battery used in the mobile phone. The output position of the battery often appears on the parallel or vertical plane of the length or width of the cell. If the above-mentioned special cell is used Packaging method, in order to realize the head output in the width direction of the cell or the side output in the length direction of the cell, it is necessary to manufacture two specifications of the cell that lead out the tabs at the head of the cell and the tabs at the side of the cell. It will increase the packaging cost of the battery
[0007] The above solutions are not easy to realize in automated or semi-automated production. At present, the manufacturing process of batteries is generally mature, and the room for improving the volume-to-capacity ratio of the batteries is limited by the existing packaging technology. The lithium battery industry has been committed to research on how to reduce The thickness of the battery package is small to increase the capacity of the battery, but a better solution has not been found

Method used

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  • Polymer battery packaging structure
  • Polymer battery packaging structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] see Figures 8 to 13 , a packaging structure of a polymer battery, including a battery cell unit, a battery cell protection unit, a battery head part and a battery tail part, wherein the battery cell unit is fixed in the battery cell protection unit, the battery head assembly and the battery cell The unit is electrically connected, the battery head assembly and the battery tail assembly are partially connected and fixed with the cell protection unit, and the cell protection unit forms the shape of the battery with the battery head assembly and the battery tail assembly.

[0045] The cell protection unit is made of a sheet made of metal or plastic, or metal and plastic material from 0.02MM to 0.30MM to form a box-shaped body 40. The box-shaped body can be made of one sheet-shaped body or two Or more than two box-shaped bodies are butted to form.

[0046]The cell unit is packaged in the box-shaped body of the cell protection unit by means of a sheet-like viscous filling ...

Embodiment 2

[0052] see Figures 14 to 18 , this embodiment is similar to the battery packaging structure of Embodiment 1. The battery head part is also composed of the battery head shape parts and the safety protection circuit board. The battery head shape parts are in the form of plastic clad steel or bonding form and the safety protection circuit The boards are connected, and the safety protection circuit board is connected to the battery core for circuit conduction.

[0053] The battery tail part is composed of plate-shaped battery tail shape parts, and the protective unit box-shaped body processed by a sheet made of metal or plastic, or metal and plastic materials, and the connection between the battery head part and the battery tail part or plastic deformation. A zigzag body 401 is provided at the two ends of the cell protection unit sheet connected to the head and tail of the cell, and corresponding card slots 201 are provided on the battery head part and the battery tail part. Whe...

Embodiment 3

[0055] see Figure 19 The difference between this embodiment and Embodiment 1 is that the battery head part and the battery tail part form a zigzag frame body 5 through the connecting piece, and the battery cell unit is arranged in the frame body, and the thickness is 0.02MM to 0.30MM The metal sheet, or the box-shaped cell protection unit with openings at both ends made by mating the metal sheet and the plastic sheet is connected outside the frame body. The cell protection unit is connected to the frame body formed by the battery head part and the battery tail part through metal elastic deformation.

[0056] After the box-shaped body of the cell protection unit is installed and matched with the frame body, stamping deformation positions 402 are formed on both ends of the box-shaped body. The stamping deformation positions press together the battery head part and the battery tail part to form an integrated packaging structure.

[0057] Of course, it is also possible to punch ...

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Abstract

The invention relates to the technical field of lithium battery encapsulation, in particular to the encapsulation of a polymer soft battery cell. The encapsulating structure of a polymer battery comprises a battery cell unit, a battery cell protective unit, a battery head part and a battery tail part; wherein, the battery cell unit is fixed inside the battery cell protective unit, the battery head part is conducted and connected with the battery cell unit by a circuit, the battery head part and the battery tail part are respectively and partly connected and fixed with the battery cell protective unit, and the battery cell protective unit forms the shape of the battery together with the battery head part and the battery tail part. Based on ensuring the safety of the battery encapsulation, the encapsulating structure realizes the maximization of the volume of the battery cell in the battery encapsulation, and effectively increases the volume ratio of cell capacity. The encapsulating structure has simplified technique and low cost. The encapsulating structure is also beneficial to the automatic production of battery and leads the selection of the battery cell to be diversified when the battery is designed.

Description

technical field [0001] The invention relates to the technical field of lithium battery packaging, in particular to the improvement of the packaging structure of polymer soft batteries. Background technique [0002] With the development of lithium-ion battery technology, its cost-effectiveness has been continuously improved, making lithium-ion batteries widely used in all walks of life. In the past one or two years, with the rapid development of communication technology, higher requirements have been put forward for the capacity, charge and discharge performance of lithium batteries, and the packaging of battery cells. Both large capacity and small size are required. In response to the above requirements, various battery manufacturers have adopted various methods, but the main thing is how to load as many batteries as possible with the same battery volume. This aspect of the battery is improved, that is, the packaging structure of the battery is improved. [0003] Lithium-i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/38H01M10/40
CPCY02E60/122Y02E60/10Y02P70/50
Inventor 林斌曾令文
Owner HUIZHOU DESAY BATTERY
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