Cylindrical lithium battery with protective function

A cylindrical, lithium battery technology, applied in the direction of battery, secondary battery, secondary battery repair/maintenance, etc., can solve the problems of user economic loss, high energy of lithium battery, scrapped lithium ion battery, etc., to improve the safety of use performance, reduce the cost of use, and avoid the effect of battery scrapping

Inactive Publication Date: 2014-03-26
天津蓝天特种电源科技股份公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When used in some small power reserve space, it is easy to cause the lithium-ion battery to be scrapped due to misuse
Due to the high energy and high price of lithium batteries, the batteries will be scrapped due to misuse, causing economic losses to users.

Method used

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  • Cylindrical lithium battery with protective function

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Embodiment Construction

[0012] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0013] figure 1 Shown is a schematic diagram of a cylindrical lithium battery with protection function in the present invention, including a cylindrical single lithium battery 4, a circular protective circuit board 2 with the same diameter as the cylindrical single lithium battery 4, and a circular insulating pad Sheet 3, positive battery cap 6, circular insulating gasket 7, heat shrinkable sleeve 5. Select the appropriate type of single battery according to the application occasion. The circular protection circuit board 2 is a one-sided cloth member, and the other side is a negative output terminal. The circular protection circuit board 2 is provided with at least one of a short circuit protection circuit, an overcharge protection circuit, an overdischarge protection circuit, and an overcurrent protection circuit. Reasonable short ...

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Abstract

The invention discloses a cylindrical lithium battery with a protective function and aims to improve the using safety and reduce the using cost of the lithium battery. The cylindrical lithium battery comprises a cylindrical single lithium battery, a circular protective circuit board, a circular insulating gasket, an anode battery cap and a heat-shrinkable tubing, wherein the diameter of the circular protective circuit board is the same as that of the cylindrical single lithium battery; a piece is arranged on one surface of the circular protective circuit board, and the other surface of the circular protective circuit board adopts a cathode output end; at least one of a short-circuit protection circuit, an overcharge protection circuit, an over discharge protection circuit and an overcurrent protection circuit is arranged on the circular protective circuit board; the circular protective circuit board is connected with the anode and the cathode of the cylindrical single lithium battery through a nickel strap; the circular insulating gasket is arranged between one side of the circular insulating gasket, on which the piece is arranged, and the cathode end face of the cylindrical single lithium battery; the anode battery cap is arranged on the anode end face of the cylindrical single lithium battery in a spot welding manner; the circular insulating gasket is mounted on the anode battery cap; the external of the complete battery is packaged by the heat-shrinkable tubing. According to the invention, as the protection circuits are added, the using safety is improved.

Description

technical field [0001] The invention relates to the technical field of lithium batteries, in particular to a cylindrical lithium battery with protection function. Background technique [0002] Lithium-ion batteries have the advantages of high voltage, high specific energy, many cycle times, and long storage time. They are not only widely used in portable electronic devices such as mobile phones, digital cameras and laptop computers, but also widely used in electric vehicles, electric Large and medium-sized electric equipment such as bicycles and electric tools. [0003] Due to the design of the existing single lithium-ion battery's own structure, at present, the single lithium-ion battery itself does not have a protective function, but there are overcharge, over-discharge, over-current, short-circuit, etc. protect the circuit. When used in some small power reserve space, it is easy to cause the lithium-ion battery to be scrapped due to misuse. Due to the high energy and h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/42H01M10/0525
CPCY02E60/122H01M10/425H01M2010/4271H01M2220/20Y02E60/10
Inventor 丁立姣李金峰
Owner 天津蓝天特种电源科技股份公司
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