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Button type rechargeable lithium ion battery

An ion battery, charging lithium technology, applied in non-aqueous electrolyte battery, electrolyte battery manufacturing, non-aqueous electrolyte battery electrode and other directions, can solve the problem of battery shape, volume and battery space volume mismatch

Active Publication Date: 2016-05-04
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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  • Button type rechargeable lithium ion battery
  • Button type rechargeable lithium ion battery
  • Button type rechargeable lithium ion battery

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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. The button type rechargeable lithium ion battery comprises a cathode cover and an anode shell corresponding to the cathode cover; a battery cavity is between the cathode cover and the anode shell; a safety valve is arranged at the upper part of the cathode cover; a battery core is arranged in the battery cavity; and the battery core comprises a cathode sheet, an anode sheet and a diaphragm. The safety valve structure of the button type rechargeable lithium ion battery disclosed by the invention is formed on a cathode aluminium cover through a mould; the safety valve can be designed into a cross-shaped structure in practical use; the thickness of the safety valve is 0.02-0.05 mm; the voltage resistance of the safety valve is 3-5 kg / cm<2>; the safety valve is designed; and particularly, the safety valve has the battery cathode identification effect.

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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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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