Button polymer lithium ion battery and circular waved edge pressing method thereof

A lithium-ion battery and polymer technology, applied in secondary batteries, secondary battery manufacturing, non-aqueous electrolyte batteries, etc., can solve the problems of poor circular appearance and poor edge removal effect, and achieve regular battery shape and reasonable design. Effect

Active Publication Date: 2019-09-03
GUANG DONG VDL NEW ENERGY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the disadvantages of irregular bending at the edge sealing position

Method used

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  • Button polymer lithium ion battery and circular waved edge pressing method thereof
  • Button polymer lithium ion battery and circular waved edge pressing method thereof
  • Button polymer lithium ion battery and circular waved edge pressing method thereof

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Embodiment Construction

[0034] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0035] refer to Figure 1-10 , the present embodiment proposes a button-type polymer lithium-ion battery, including a positive pole tab 1, a negative pole tab 2, an aluminum-plastic box air bag 3, a ring seal 4 and an air bag seal 5, and the ring seal 4 is arranged on the positive pole tab 1, the air bag seal 5 is set on the top side of the annular seal 4, the aluminum-plastic box air bag 3 is set on the top side of the air bag seal 5, and the negative electrode tab 2 is set on the outside of the aluminum-plastic box air bag 3;

[0036] This embodiment also proposes a circular wave-shaped crimping method for a button-type polymer lithium-ion battery, comprising the f...

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Abstract

The invention relates to a button polymer lithium ion battery and a circular waved edge pressing method thereof. The edge pressing method includes cold pressing or hot pressing. The cold pressing doesnot require heating, and other methods are the same as hot pressing. The hot pressing comprises the following steps of: S1, preparing molds: preparing a upper mold and a lower mold of which the sidesclose to each other are configured in waved shapes; S2, loading a heating mechanism: preparing heating elements and loading the heating elements on the upper mold and the lower mold; S3, die cutting:die cutting the button polymer lithium ion battery; and S4, hot pressing: putting the button polymer lithium ion battery die cut in the S3 in the lower mold having the heating mechanism described inthe S2. The method is reasonable in design, can press the circular sealing edge of the die cut button polymer lithium ion battery into waved shapes staggered up and down, can conveniently presses thesealing edge from a plane into a regular wave, and makes the battery appearance regular.

Description

technical field [0001] The invention relates to the technical field of button battery production, in particular to a button-type polymer lithium-ion battery and a circular wave-shaped pressing method thereof. Background technique [0002] A button battery, also known as a button battery, refers to a battery that looks like a small button. Generally speaking, it has a larger diameter and a thinner thickness (compared to cylindrical batteries such as AA batteries on the market). Button batteries are divided into batteries from the shape, and the corresponding battery classifications include cylindrical batteries, square batteries, and special-shaped batteries. A folded edge will be formed between the positive and negative electrodes of the button battery. Since the round edge of the poly button polymer lithium-ion battery that has been punched and trimmed is a process of continuously increasing diameter, the edge will be removed without special treatment. After the edge is re...

Claims

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Application Information

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IPC IPC(8): H01M10/0525H01M10/058H01M10/04
CPCH01M10/0427H01M10/0525H01M10/058Y02E60/10Y02P70/50
Inventor 邓亚西
Owner GUANG DONG VDL NEW ENERGY CO LTD
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