Safety protection method and device for lithium battery and lithium battery

A safety protection device and safety protection technology, applied in the field of lithium battery safety and application safety, lithium battery safety protection field, can solve the problem of burning not spreading rapidly, and achieve the effect of improving operation safety.

Inactive Publication Date: 2015-11-11
KUNMING WUWEI S&T IND TRADE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For this reason, the present invention provides a lithium battery safety protection method, which solves how to control the combustion after the lithium battery catches fire and ruptures in the prior art, so that t

Method used

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  • Safety protection method and device for lithium battery and lithium battery
  • Safety protection method and device for lithium battery and lithium battery
  • Safety protection method and device for lithium battery and lithium battery

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0040] Without loss of generality, as figure 2 As shown, the present invention provides a lithium battery safety protection device, comprising: an airtight closed case 001; and a safety valve 002 arranged on the closed case. In this embodiment, the lithium battery or the lithium battery pack is fixed in the airtight closed casing 001 by using the fixing bracket 003 .

[0041] Preferably, in this embodiment, a mechanical seal is used to provide structural support for the airtightness of the closed casing 001. The mechanical seal has the advantages of simple structure and easy processing and realization. It should be noted that the structure of the safety valve 002 is not limited to figure 2 All the safety valves suitable for application in the present invention in the prior art fall within the protection scope of the present invention.

[0042] When in use, it is only necessary to fix the lithium battery in the fixed bracket 003, and fasten and seal the airtight closed case...

Embodiment 2

[0044] In this embodiment, on the basis of embodiment 2, the closed casing is further provided with at least one of a charging and discharging interface, a battery performance detection interface and an electrical appliance connection interface. image 3 As shown, in this embodiment, a charge and discharge interface 004, a battery performance detection interface 005, and an electrical appliance connection interface 006 are also provided at the end cap of the closed case. Since the structures of the charge and discharge interface 004, the battery performance detection interface 005 and the electrical appliance connection interface 006 are all in the prior art, the details of their structures will not be repeated here.

[0045] It should be noted that the above-mentioned interfaces can be individually configured according to actual use needs. On the basis of Embodiment 1 of the present invention, the airtight closed casing 001 is provided with charging and discharging interfaces,...

Embodiment 3

[0050] Furthermore, on the basis of the above-mentioned embodiments, this embodiment provides a lithium battery protected by the lithium battery safety protection method described above; and a lithium battery prepared by using the lithium battery safety protection device described above, A safety barrier is provided for lithium batteries in the prior art.

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PUM

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Abstract

The invention provides safety protection method and device for a lithium battery and the lithium battery, and aims at solving the technical problems of how to control combustion and prevent combustion from spreading rapidly after the lithium battery is on fire and is broken in the prior art, and how to isolate the burning lithium battery and reduce the effects to the external environment caused by explosion, so as to improve the use safety of the lithium battery. The method comprises the steps as follows: the lithium battery is arranged in an enclosed shell with the gas tightness, and a safety valve is arranged on the enclosed shell. The device comprises the enclosed shell with the gas tightness and the safety valve arranged on the enclosed shell. The lithium battery is protected by the safety protection method or further comprises the safety protection device for the lithium battery. According to the safety protection method and device for the lithium battery, the use safety of the lithium battery can be effectively improved; and the harms caused by explosion of the lithium battery are reduced.

Description

technical field [0001] The invention relates to the technical field of lithium battery safety application safety, in particular to a lithium battery safety protection method, device and lithium battery. Background technique [0002] As an emerging technology, lithium batteries have many advantages compared with traditional batteries: 1) High specific energy, that is, while releasing as much energy as possible, it has as little self-consumption as possible. Lithium element has the smallest density and the largest electronegativity, consumes the same quality of battery materials, and the energy released by lithium batteries is significantly higher than the value of similar traditional batteries. 2) Stable discharge voltage: Many electronic circuits require the battery to provide a relatively stable discharge voltage, and lithium batteries (especially primary lithium batteries) have this characteristic. The voltage of some lithium batteries can approach the level of the regula...

Claims

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Application Information

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IPC IPC(8): H01M10/0525H01M2/12H01M2/02H01M50/102H01M50/30H01M50/383H01M50/50H01M50/569
CPCH01M10/0525H01M50/116H01M50/317Y02E60/10
Inventor 施黎明尤云杨涛
Owner KUNMING WUWEI S&T IND TRADE
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