Safe soft-packing lithium ion battery and electronic cigarette

A lithium-ion battery, safety technology, used in batteries, small-sized batteries/battery packs, battery pack components, etc., can solve problems such as safety hazards, prevent electro-hydraulic leakage, avoid electro-liquid pollution, improve The effect of safety features

Inactive Publication Date: 2017-12-05
SHENZHEN EPT BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The main purpose of the present invention is to provide a safe soft pack lithium-ion bat

Method used

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  • Safe soft-packing lithium ion battery and electronic cigarette

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] see figure 1 , is a schematic structural diagram of a square safe soft-packed lithium-ion battery, which includes: a square steel case assembly 10 as the outer shell of the battery, and an aluminum-plastic film case 20 placed in the square steel case assembly as the inner shell of the battery , 30 batteries.

[0017] The cell includes a positive pole tab 31 and a negative pole tab 32 .

[0018] The square steel shell assembly 10 includes a square steel shell shell 11 , a positive terminal 12 , a negative terminal 13 , an insulating gasket 14 and a safety valve 15 . The positive tab 31 of the electronic cigarette battery is connected to the positive terminal 12 by spot welding, the negative tab 32 of the electronic cigarette battery is connected to the negative terminal 13 by spot welding, the safety valve 15 is arranged on the positive terminal 12, and the positive terminal 12 and The negative terminal 13 passes through the insulating gasket 14 .

[0019] In this emb...

Embodiment 2

[0025] An electronic cigarette includes a mouthpiece, a battery and an atomizer, wherein the battery is the safe soft-pack lithium-ion battery described in the first embodiment above. The electronic cigarette of the present invention has improved explosion-proof performance and anti-leakage performance, so the safety performance is effectively improved.

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PUM

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Abstract

The invention relates to a safe soft-packing lithium ion battery and an electronic cigarette. The safe soft-packing lithium ion battery comprises a steel shell assembly as an outer-layer housing, an aluminum-plastic film housing and a cell. The aluminum-plastic film housing is located in the steel shell assembly and serves as an inner-layer housing. The cell is disposed in the aluminum-plastic film housing and comprises a positive pole lug and a negative pole lug. The steel shell assembly comprises a housing, a positive pole terminal, a negative pole terminal and an insulation sealing pad and further comprises a safety valve. The safety valve is arranged on the positive pole terminal. The positive pole lug is connected with the positive pole terminal by spot welding. The negative pole lug is connected with the negative pole terminal by spot welding. The positive pole terminal and the negative pole terminal penetrate through the insulation sealing pad. The invention further provides the electronic cigarette includingthe above battery. Therefore, safety performance of the soft-packing lithium ion battery is improved. Potential safety hazards such as air and liquid leakage becausea soft inner-layer aluminum-plastic film is easily cutare avoided. Additionally, outside air is effectively prevented from entering the housing and contacting organic electrolyte. Electrolyte leakage caused by an abnormal condition of the internal lithium ion battery is avoided. Hence, health of customers is protected by preventing them from electrolyte pollution.

Description

technical field [0001] The invention relates to a safe soft-pack lithium ion battery and an electronic cigarette. Background technique [0002] At present, the most common e-cigarette battery is a soft-packed lithium-ion battery packaged in aluminum-plastic film. However, lithium-ion batteries are organic electrolytes. When the finished battery undergoes extreme conditions such as acupuncture, foreign object impact, overcharge and overdischarge, high temperature, contact with moisture and oxygen, a chemical reaction will occur in the shell, generating a large amount of gas and heat. When the ignition point of the organic electrolyte is reached, it will cause a fire and pose a safety hazard. In particular, even if there is no external cause to cause battery abnormality, the moisture and oxygen in the environment will slowly penetrate into the battery according to the principle of diffusion during the long-term storage of the aluminum-plastic film, which will inevitably cause...

Claims

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Application Information

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IPC IPC(8): A24F47/00H01M2/02H01M2/12H01M50/107H01M50/124H01M50/317
CPCH01M2220/30H01M50/107H01M50/124H01M50/317Y02E60/10
Inventor 王守军梁德声曹胜龙关振州
Owner SHENZHEN EPT BATTERY
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