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A kind of widening structure of flexible packaging lithium-ion battery and its manufacturing method

A production method, lithium ion technology, applied in the direction of structural parts, electrolyte storage battery manufacturing, circuits, etc., can solve problems such as poor fixation, no better improvement of battery cell fixing methods, and hot melt adhesive can not be effectively filled, etc., to achieve improvement Effect of Width Consistency

Active Publication Date: 2016-06-22
DONGGUAN AMPEREX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, with the development of process production to automation, the amount of automatic glue injection will be constant, which leads to the hot melt glue not being able to effectively fill the gap between the narrow cell and the plastic frame, and the phenomenon that the two are not firmly fixed reappears
As for the B-Pack, there is no better way to improve the fixing method of the battery in the Pack at present in the industry.

Method used

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  • A kind of widening structure of flexible packaging lithium-ion battery and its manufacturing method
  • A kind of widening structure of flexible packaging lithium-ion battery and its manufacturing method
  • A kind of widening structure of flexible packaging lithium-ion battery and its manufacturing method

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the examples and the accompanying drawings, but the implementation of the present invention is not limited thereto.

[0028] like Figure 2~6 As shown, a flexible packaged lithium-ion battery cell widening structure, including the cell main body side 1 and the packaging fold 2 located on both sides of the battery main body side 1, between the battery main body side 1 and the packaging fold 2 A widened area 4 is provided, and a filler 3 is arranged in the widened area 4, one side of the filler 3 is bonded to the side 1 of the main body of the battery cell, and one side of the filler 3 is bonded to the package fold 2 or One side of the filler 3 is bonded to the side 1 of the main body of the battery cell, and the other side of the filler 3 is bonded to the package fold 2 .

[0029] Preferably, the filler 3 includes at least one of double-sided adhesive tape, crepe adhesive tape and DuPont...

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Abstract

The invention belongs to the technical field of lithium-ion batteries, and particularly refers to a soft-packed lithium-ion cell widening structure and a manufacturing method thereof, including the side of the cell main body and packaging folds located on both sides of the cell main body, and the cell main body side There is a widened area between the edge and the package fold, and a filler is arranged in the widened area, one side of the filler is bonded to the side of the battery body, one side of the filler is bonded to the package fold, or One side of the filler is bonded to the side of the main body of the cell, and the other side of the filler is bonded to the folded edge of the package. The widening area set by this structure can widen the narrow cell, effectively improve the consistency of the cell width, and ensure that the cell is fixed in the battery. Setting a widening area between the edge and the folded edge of the cell package to widen the cell can be used as a remedial measure to improve the consistency of the cell width.

Description

technical field [0001] The invention belongs to the technical field of lithium-ion batteries, in particular to a soft-packed lithium-ion battery core widening structure and a manufacturing method thereof. Background technique [0002] As an environmentally friendly secondary battery, lithium-ion batteries have been widely used in portable devices such as mobile phones, cameras, and notebook computers. [0003] Flexible packaging lithium-ion cells are usually wound structures. Due to the fluctuations in the thickness of the positive electrode sheet, negative electrode sheet, and separator, as well as the difference in winding tension, the width consistency of the wound cells is poor. When the cells are assembled ( Pack), the cells with small width are difficult to be well fixed in the Pack, which will lead to potential poor electrical contact and safety problems. [0004] At present, there are two main processing methods for Pack: one is to pack the battery cells into a plas...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/14H01M10/058
CPCY02E60/10Y02P70/50
Inventor 史册
Owner DONGGUAN AMPEREX TECH
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