Battery Carbon Recycling via Sulfur Reaction to Produce CS2
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Solution Overview
Problem
Existing methods for recycling batteries focus on recovering metals but neglect the effective recovery and utilization of carbon materials.
Innovation Solution
A method is developed to produce carbon disulfide (CS2) by reacting carbon from battery materials with sulfur, which can be used as a raw material for various chemical products.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of substance
If existing methods for recycling batteries are used to recover metals, then metal recovery is achieved, but carbon materials are neglected and not effectively utilized
Solution Approach 1:
The patent transforms carbon from a discarded byproduct into a valuable resource by changing its chemical form through reaction with sulfur to produce carbon disulfide (CS2). This parameter change in chemical composition enables carbon to be utilized as a raw material for various chemical products, resolving the contradiction between carbon recovery and its effective utilization.
Solution Approach 2:
The patent introduces sulfur as an intermediary substance that facilitates the conversion of carbon into carbon disulfide. This intermediary enables the transformation of carbon into a form that can be effectively utilized for producing various chemical products, thereby solving the problem of carbon utilization.
2Productivity
If carbon is reacted with sulfur to produce carbon disulfide, then carbon utilization is enhanced, but additional processing steps are required
Solution Approach 1:
The patent performs carbonization of organic matter in the battery material as a preliminary action before the main reaction with sulfur. This preliminary carbonization concentrates carbon in a readily reactable form, improving the efficiency of subsequent CS2 production while organizing the process into manageable stages.
Solution Approach 2:
The patent divides the recycling process into distinct segments: (1) carbonization of organic matter, (2) reaction of carbon with sulfur to produce CS2, and (3) utilization of CS2 as a raw material. This segmentation makes the complex process more manageable and facilitates optimization of each individual step.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Carbon is efficiently recovered and utilized, enhancing the yield of CS2, which can be used to produce materials like viscose rayon, cellophane, and carbon tetrachloride, and contributes to carbon neutrality through carbon dioxide consumption.
Implementation Method 1
causing carbon included in the battery material and sulfur to react with each other
Implementation Method 2
Carbonizing an organic matter included in the battery material by heating the battery material
Implementation Method 3
bringing sulfur vapor into contact with the battery material
Data Source
AI summary
The present disclosure relates to a method of producing a recycled material. The method of producing a recycled material includes the following (a) and (b). (a) Preparing a battery material. (b) Generating carbon disulfide by causing carbon that is included in the battery material and sulfur to react with each other.