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Method for recycling overdue waste medicine compound ferrous sulfate preparation and waste lithium foil in old lithium battery

A ferrous sulfate, lithium battery technology, applied in recycling technology, battery recycling, waste collector recycling, etc., can solve problems such as wasting resources and affecting the ecological environment, avoiding secondary pollution, improving electrochemical performance, and achieving The effect of reuse

Active Publication Date: 2018-09-18
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] To sum up, at present, there is no effective recycling and application of the expired waste drug compound ferrous sulfate preparation and the waste lithium foil in the old lithium battery, which not only seriously affects the ecological environment, but also wastes resources. Development of new application methods for ferrous sulfate preparations and waste lithium foil recycling

Method used

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  • Method for recycling overdue waste medicine compound ferrous sulfate preparation and waste lithium foil in old lithium battery
  • Method for recycling overdue waste medicine compound ferrous sulfate preparation and waste lithium foil in old lithium battery
  • Method for recycling overdue waste medicine compound ferrous sulfate preparation and waste lithium foil in old lithium battery

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Effect test

Embodiment 1

[0027] A method for recycling the compound ferrous sulfate preparation of expired waste medicine and the waste lithium foil in the old lithium battery, the specific steps are as follows:

[0028] (1) Open the recovered experimental button-type lithium-ion battery, take out the waste lithium foil and add it to deionized water, obtain the filtrate LiOH solution after filtration, and detect the amount of LiOH in the LiOH solution, figure 1 (a) Recycled experimental coin lithium-ion battery, figure 1 (b) is waste lithium foil;

[0029] (2) According to LiOH, H 3 PO 4 and FeSO 4 The molar ratio is the ratio of 3: 1: 1, in the LiOH solution of step (1), add H 3 PO 4 After the solution is stirred evenly, add the expired waste drug compound ferrous sulfate granules, and the expired waste drug compound ferrous sulfate granules are capsule preparations such as figure 1 As shown in (c), add sodium lauryl sulfate, stir evenly, and adjust the pH value to 7 with ammonia water with a v...

Embodiment 2

[0033] A method for recycling the compound ferrous sulfate preparation of expired waste medicine and the waste lithium foil in the old lithium battery, the specific steps are as follows:

[0034] (1) Open the recovered lithium-sulfur battery, take out the waste lithium foil and add it to deionized water, obtain the filtrate LiOH solution after filtration, and detect the amount of LiOH in the LiOH solution;

[0035] (2) According to LiOH, H 3 PO 4 and FeSO 4 The molar ratio is the ratio of 3: 1: 1, in the LiOH solution of step (1), add H3 PO 4 After the solution is stirred evenly, add the expired waste drug compound ferrous sulfate granule, which is a capsule preparation, wherein each expired waste drug compound ferrous sulfate granule capsule contains 50 mg of FeSO 4 ∙7H 2 0, 30 milligrams of vitamin C, remaining is a small amount of glucose, then add sodium lauryl sulfate, after stirring, be 5% ammoniacal liquor to regulate pH value to be 8, the add-on of sodium lauryl su...

Embodiment 3

[0039] A method for recycling the compound ferrous sulfate preparation of expired waste medicine and the waste lithium foil in the old lithium battery, the specific steps are as follows:

[0040] (1) Open the recovered lithium-phosphorus battery, take out the waste lithium foil and add it to deionized water, obtain the filtrate LiOH solution after filtration, and detect the amount of LiOH in the LiOH solution;

[0041] (2) According to LiOH, H 3 PO 4 and FeSO 4 The molar ratio is the ratio of 3: 1: 1, in the LiOH solution of step (1), add H 3 PO 4 After the solution is stirred evenly, add the expired waste drug compound ferrous sulfate granule, which is a capsule preparation, wherein each expired waste drug compound ferrous sulfate granule capsule contains 50 mg of FeSO 4 ∙7H 2 0, 30 milligrams of vitamin C, remaining is a small amount of glucose, then add sodium lauryl sulfate, after stirring, be 5% ammoniacal liquor to regulate pH value to be 8, the add-on of sodium lau...

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Abstract

The invention discloses a method for recycling overdue waste medicine compound ferrous sulfate preparation and waste lithium foil in an old lithium battery, and belongs to the technical field of the new energy material. The overdue waste medicine compound ferrous sulfate preparation and waste lithium foil in the old lithium battery is recycled in a LiFePO4 / C way, and then manufactured as an electrode plate by taking the LiFePO4 / C as an electrode active material, the electrode plate is assembled into a button simulate lithium ion battery under an anhydrous and oxygen-free condition, and the electrochemical performance is tested. Through the method disclosed by the invention, the waste is turned into the wealth, the process is simple, a new path and a new scheme are provided for recycling the overdue waste medicine compound ferrous sulfate preparation and the waste lithium foil, the ecological hazard on the environment by the overdue waste medicine compound ferrous sulfate preparation and the waste lithium foil is reduced, and the development of the circular economy and the sustainable policy is promoted.

Description

technical field [0001] The invention relates to a method for recycling expired waste drug compound ferrous sulfate preparation and waste lithium foil in old lithium batteries, belonging to the technical field of new energy materials. Background technique [0002] With the rapid development of my country's economic level and the continuous enhancement of people's health awareness, the types and quantities of medicines stored in the family are constantly increasing. Once the supply exceeds demand, it is easy to produce a large number of expired drugs. Improper disposal of expired medicines not only wastes resources but also negatively impacts ecosystems. Therefore, reasonable recycling and disposal of expired drugs is an objective requirement to ensure the safety of human medicine and protect the environment. Iron is an essential mineral for the human body. When the human body is deficient in iron, the amount of hemoglobin synthesized by red blood cells decreases, resulting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/54
CPCH01M10/54Y02W30/84
Inventor 侯宏英李栋栋姚远廖启书代志鹏余成义
Owner KUNMING UNIV OF SCI & TECH
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