A button-type rechargeable lithium-ion battery

A technology of ion battery and rechargeable lithium, which is applied in the direction of non-aqueous electrolyte battery, electrolyte battery manufacturing, non-aqueous electrolyte battery electrode, etc., and can solve the problems of battery shape, volume, battery space and volume mismatch, etc.

Active Publication Date: 2018-06-12
CHONGQING VDL ELECTRONICS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the above lithium-ion battery products are applied to thin smart wearable products, there is a problem that the shape and volume of the battery do not match the battery space and volume inside the device

Method used

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  • A button-type rechargeable lithium-ion battery
  • A button-type rechargeable lithium-ion battery
  • A button-type rechargeable lithium-ion battery

Examples

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Embodiment Construction

[0025] Combine below Figure 1-2 The preferred embodiments of the present invention are further described:

[0026] A button-type rechargeable lithium-ion battery, comprising a positive electrode cover 1 and a corresponding negative electrode case 2, the battery inner cavity is between the positive electrode cover 1 and the negative electrode case 2, and a safety device is provided on the upper part of the positive electrode cover 1. The valve 3 is provided with an electric core in the inner cavity of the battery, and the electric core includes a positive electrode sheet 4, a negative electrode sheet 5 and a diaphragm 6; on the positive electrode aluminum cover, it is formed by a mold, and the shape design in actual use can be "+ ” shape, the thickness of the safety valve is 0.02-0.05mm, and the pressure resistance is 3-5kg / cm2. Not only is the safety valve designed, but it can also play the role of marking the positive pole of the battery.

[0027] The positive electrode sh...

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Abstract

The invention discloses a button-type rechargeable lithium-ion battery, which comprises a positive electrode cover and a corresponding negative electrode case, the inner cavity of the battery is between the positive electrode cover and the negative electrode case, and a safety valve is arranged on the upper part of the positive electrode cover , an electric core is provided in the inner cavity of the battery, and the electric core includes a positive electrode sheet, a negative electrode sheet and a diaphragm. A button-type rechargeable lithium-ion battery pole piece of the present invention. The structure of the safety valve of the battery of the present invention is designed as follows: on the aluminum cover of the positive electrode, it is molded through a mold. In actual use, the shape design can be "+" shape, and the thickness of the safety valve is 0.02~0.05mm, pressure resistance is 3~5kg / cm2. Not only is the safety valve designed, but it can also play the role of marking the positive pole of the battery.

Description

technical field [0001] The invention relates to the field of lithium ion batteries, in particular to a button-type rechargeable lithium ion battery. Background technique [0002] Lithium-ion batteries are divided into the following types: square or cylindrical polymer lithium-ion batteries, cylindrical steel or aluminum lithium-ion batteries, square aluminum or steel lithium-ion batteries, etc., widely used in mobile phones, computers, Bluetooth devices, electric vehicles, backup power and other fields. [0003] Bluetooth devices include Bluetooth headsets, smart wearable products, Bluetooth speakers, etc., which have developed rapidly in recent years, especially smart wearable products, which can be carried around and connected to mobile phones through Bluetooth to realize functions such as body information, calls, fitness, and positioning. The shape of the product is usually watch-style, small in size, ultra-thin in shape, mainly square or round. When the above-mentioned...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/12H01M4/13H01M10/058H01M50/30
CPCH01M4/13H01M10/058H01M50/30Y02E60/10Y02P70/50
Inventor 朱传钦
Owner CHONGQING VDL ELECTRONICS
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