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Water-free discharging method and device for battery

A battery and battery cathode technology, applied in the field of battery anhydrous discharge method and device, can solve the problems of explosion, no battery discharge, overheating, etc., and achieve the effect of high flexibility

Inactive Publication Date: 2021-06-01
南京万舟发机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of dissipating the waste lithium-ion batteries in batches (that is, releasing the residual power inside the waste lithium-ion batteries), the remaining power of the batteries will be released rapidly due to short circuit and fragmentation during the decomposition process, resulting in local overheating or even explosion. Therefore, waste lithium-ion batteries must be fully discharged before recycling, and waste lithium-ion batteries must be de-energized.
[0004] However, there is no safe and convenient method for discharging batteries in the prior art

Method used

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  • Water-free discharging method and device for battery
  • Water-free discharging method and device for battery
  • Water-free discharging method and device for battery

Examples

Experimental program
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Effect test

Embodiment 1

[0025] Such as figure 1 As shown, this embodiment takes a cylindrical 18650 battery as an example to specifically illustrate the method of battery anhydrous discharge.

[0026] Step 101: See figure 2 , put a conductive material between the positive and negative electrodes of the cylindrical 18650 battery, and use a dispenser to figure 2 The continuous graphite conductive paint coating on the points between the positive and negative electrodes shown covers the insulating pad and connects the positive and negative electrodes, so that the positive and negative electrodes of the cylindrical 18650 battery pass through the conductive material to form a discharge circuit. In this embodiment, a conductive material is placed under the positive terminal cover of the cylindrical 18650 battery. The conductive material is located at the junction of the negative electrode, the insulating layer and the positive electrode of the cylindrical battery. Positive and negative electrodes, and w...

Embodiment 2

[0035] Such as figure 1 As shown, the present embodiment takes the battery of a soft-packed mobile phone as an example to specifically describe the method for discharging the battery without water.

[0036] Step 101: See image 3 , put a conductive material between the positive and negative electrodes of the soft-packed mobile phone battery, and use a brush to insert a conductive material between the positive and negative contact surfaces of the insulating end cap of the soft-packed mobile phone battery, so that the positive and negative electrodes of the soft-packed mobile phone battery The negative electrode constitutes a discharge circuit through the conductive material. In this embodiment, a layer of conductive material is selected to be brushed between the positive contact surface and the negative contact surface of the insulating end cap of the soft-pack mobile phone battery. The waste of conductive materials is caused, and the pollution of the environment by battery d...

Embodiment 3

[0044] Such as figure 1 As shown, this embodiment takes a cylindrical Ni-MH battery as an example to specifically illustrate the method for battery anhydrous discharge:

[0045] Step 101: See figure 2 , put a conductive material between the positive and negative electrodes of the cylindrical Ni-MH battery, and use a glue injection machine to figure 2 The shown positive and negative electrodes are filled with a continuous conductive paint coating, which covers the insulating pad and connects the positive and negative electrodes, so that the positive and negative electrodes of the cylindrical Ni-MH battery pass through the conductive material to form a discharge circuit. In this embodiment, a conductive material is placed under the positive terminal cover of the cylindrical Ni-MH battery, and the conductive material is located at the junction of the negative electrode, the insulating layer and the positive electrode of the cylindrical Ni-MH battery. Such a setting method can ...

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Abstract

The invention relates to a water-free discharge method and device for a battery. The method comprises the following steps: pretreating a conductive coating or a conductive adhesive, brushing a continuous conductive coating layer or battery adhesive between a positive electrode and a negative electrode, forming a dry conductive coating layer or conductive adhesive layer between the positive electrode and the negative electrode, and carrying out the safe discharge of the battery until the discharge is completed. Compared with saline discharge, the method and the device have the advantages that new pollution is not generated, battery materials to be recycled are not polluted, wastewater treatment is avoided, and the method is a more environment-friendly batch discharge method for the small-size batteries.

Description

[0001] This application is a divisional application of a patent application entitled "A Method for Discharging a Battery Without Water". The filing date of the original application is June 21, 2017, and the application number is 201710474368.5. technical field [0002] The invention relates to the technical field of recycling electronic products, in particular to a battery anhydrous discharge method and device. Background technique [0003] With the widespread application of lithium-ion batteries, a large number of waste lithium-ion batteries have been produced. At present, waste lithium-ion batteries contain a large amount of toxic rare metal cobalt, but because cobalt is an important strategic metal, the waste lithium-ion batteries are currently Research on ion batteries mostly focuses on the recovery and reuse of precious metals. For example, the current ternary lithium batteries also contain precious metals such as manganese and nickel. At the same time, lithium-ion batte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H01M10/54
CPCH01M10/44H01M10/54Y02W30/84Y02E60/10
Inventor 叶成
Owner 南京万舟发机电科技有限公司