Resource separation and recycling production method for waste nickel hydrogen battery content

A technology of nickel-metal hydride battery and production method, applied in battery recycling, solid waste removal, waste collector recycling, etc., can solve problems such as high cost, secondary pollution, complicated process, etc., and achieve the effect of retaining usability

Inactive Publication Date: 2008-08-13
SOUTHEAST UNIV
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  • Summary
  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

In this patented process we have developed ways to separate different types of material used during manufacturing processes into smaller parts or products with better utilization value compared to traditional methods like crushing them down. These small pieces are then combined together again to make more useful items such as lithium ion cells (LIBs).

Problems solved by technology

Technological Problem addressed by this patented patents relates to improving the efficiency and effectiveness of redox flow cells used in electronic devices like mobile phones, laptops, tablets, smart cards, cameras, printers, sensors, and other similar products. However, current technologies require expensive precious metallic material from traditional sources like gold, silver, platinum, palladium, rhodochrome, lithia, copper, manganese, chromite, ceramics, tantalodes, tungsten, niobium, zinc, iron, magnesnium, bismuth, rhenate, aluminum, among others. Additionally, there exist concerns over future dispositions of these types of spent batteries containing different compositional ingredients. Therefore, finding ways to recover them becomes crucial because they could help reduce costs associated with landfill operations while also reducing harmful effects on our natural environments through resource conservation efforts.

Method used

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  • Resource separation and recycling production method for waste nickel hydrogen battery content

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Embodiment Construction

[0019] 1. Mechanical breaking of battery:

[0020] In order to make post-processing easier, the crushing of the battery should be done in a gentler way. In the laboratory, a hacksaw can be used to saw open the battery shell that has discharged residual power; in industry, a machine that can peel off the plastic and metal shell of the battery that has discharged residual power is used to remove the battery. The metal casing is separated from the battery core.

[0021] Existing nickel-metal hydride batteries generally use positive and negative electrode active materials to be coated on foamed nickel and perforated steel strips, and a separator is used to separate the electrode materials from direct contact. In order to facilitate the subsequent processing, the electrode sheet should be cut into pieces of 1cm to 5cm square.

[0022] 2. Separation of electrolyte from other solid contents

[0023] The electrolytic solution contained in the battery contents can be washed out by using wa...

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PUM

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Abstract

A method for resource-separating and circulating-producing the waste and old nickel-hydrogen battery component relates to a method for physically separating various components comprising casing, electrolyte, positive electrode material, negative electrode material, adhesive and negative electrode collector perforated steel ribbon in the waste and old nickel-hydrogen battery, and a plan for separating the obtained pure electrode material for recycling, and the invention provides a low-cost route for the resource and circulating production of the waste and old nickel-hydrogen battery. The physical separating route is defined in the chart. The positive plate obtained by separation can be converted to the positive electrode material which can be used for the production of the new battery with a chemical method; the negative electrode material which can be used for the production of the new battery is obtained by washing, adjusting the metal proportion, smelting, grinding and filtering to the hydrogen storage alloy thereby completing the circulating production of the nickel-hydrogen battery.

Description

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Claims

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Application Information

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Owner SOUTHEAST UNIV
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