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Ceramic insulating sheet, button cell and packaging method of button cell

A technology of ceramic insulation and button batteries, which is applied in battery pack components, secondary battery manufacturing, cylindrical case batteries/batteries, etc., can solve the problems of complex soldering feet of new button batteries, and achieve the protection of lithium ion permeability and Electron barrier effect

Pending Publication Date: 2021-04-02
惠州市恒泰德能电池有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

According to the needs of different circuit boards, the forms of soldering pins are often various. At the same time, the soldering pins of new button batteries are more complicated.

Method used

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  • Ceramic insulating sheet, button cell and packaging method of button cell
  • Ceramic insulating sheet, button cell and packaging method of button cell
  • Ceramic insulating sheet, button cell and packaging method of button cell

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A ceramic insulating sheet 1, characterized in that it includes a first metallization layer 11, a first transition layer 12, a ceramic insulation layer 13, a second transition layer 14, and a second metallization layer 15 arranged in sequence;

[0044] The horizontal cross-sectional shape of the ceramic insulating sheet is circular ring.

[0045] In the present invention, the ceramic insulating sheet is divided into a metallized layer, a ceramic insulating layer, and a metallized layer from the outside to the inside according to the size. There is no obvious physical boundary between the metallized area and the ceramic area, and there are no defects such as cracks. The metallized area It has the characteristics of metal, has certain strength, conductivity, and weldability, and the ceramic area has electrical insulation wires. The first transition layer and the second transition layer are transition regions produced by the metallization process.

[0046] The ceramic ins...

Embodiment 2

[0049] This embodiment provides a ceramic insulating sheet 1 with the same structure as that of Embodiment 1, the difference is that the horizontal cross-sectional shape of the ceramic insulating sheet is a rectangular ring.

Embodiment 3

[0051] This embodiment provides a ceramic insulating sheet 1 with the same structure as that of Embodiment 1, the difference is that the horizontal cross-sectional shape of the ceramic insulating sheet is an elliptical ring.

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Abstract

The invention provides a button battery with a novel structure. The button battery comprises a packaging structure, wherein the packaging structure comprises a negative electrode shell, ceramic insulation sheets, a positive electrode metal sheet and a positive electrode lug, the positive electrode metal sheet is arranged above the negative electrode shell, two sides of the positive electrode metalsheet are connected with the ceramic insulation sheets, and one end of each ceramic insulation sheet is connected with the negative electrode shell; and a positive tab is connected below the positivemetal sheet. The battery also comprises a roll core, a negative tab and a negative plate, the negative plate is arranged at the lower part in the negative shell, and the negative tab is connected with the upper part of the negative plate; the upper part of the roll core is connected with a positive tab, and the lower part of the roll core is connected with a negative tab. According to the buttonbattery, a novel packaging structure is adopted to replace a traditional packaging mode, the button cell with the novel structure is sealed by welding the ceramic material and the metal shell, and thebutton cell manufactured by the mode is reliable in sealing, high in yield, good in reliability, small in packaging deformation and high in volume utilization rate, and the capacity and the specificenergy density can be improved.

Description

technical field [0001] The invention belongs to the technical field of battery materials and battery preparation, and in particular relates to a ceramic insulating sheet, a button battery and a packaging method thereof. Background technique [0002] The button batteries on all kinds of cheap electronic products that are common in daily life are mostly the traditional disposable (non-rechargeable) type, which are low in price and simple in processing technology. Today, in order to meet consumers' demands for high endurance, high safety and individualization of electronic products, major battery manufacturers have begun to gradually produce new rechargeable button batteries with higher energy density, various specifications, and various materials. Because of this, the processing difficulty and technology of the new button battery are also constantly upgrading, and the traditional processing technology has touched the pain point of upgrading the processing technology of the n...

Claims

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Application Information

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IPC IPC(8): H01M50/184H01M50/188H01M50/197H01M50/593H01M10/04
CPCH01M10/0427Y02E60/10Y02P70/50
Inventor 李泽荣李念沈立强刘志伟朱剑峰田洪卢志伟梁家辉
Owner 惠州市恒泰德能电池有限公司