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Batteries and Fuel Cells03:12

Batteries and Fuel Cells

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A battery is a galvanic cell that is used as a source of electrical power for specific applications. Modern batteries exist in a multitude of forms to accommodate various applications, from tiny button batteries such as those that power wristwatches to the very large batteries used to supply backup energy to municipal power grids. Some batteries are designed for single-use applications and cannot be recharged (primary cells), while others are based on conveniently reversible cell reactions that...
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Electrogravimetric Analysis: Overview01:30

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Electrogravimetric analysis measures the weight of an analyte deposited electrolytically onto a suitable working electrode. This method involves applying a potential to a pre-weighed electrode submerged in a solution, which results in the desired substance being deposited through reduction at the cathode or oxidation at the anode. The electrode's weight is recorded after deposition, and the difference in weight gives the analyte's weight in the solution.
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DC Battery01:21

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A conductor needs to be a component of a path that creates a closed loop or full circuit to have a continuous current flowing through it. A current starts to flow if an electric field is created inside an isolated conductor that is not part of a full circuit. The conductor quickly develops a net positive charge at one end and a net negative charge at the other. These charges generate an electric field opposite the direction of the applied electric field, which reduces the current. Eventually,...
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Electrodeposition01:08

Electrodeposition

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Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
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Voltammetry: Factors Affecting Measurements01:21

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A current produced due to the redox reactions of the analyte at the working and auxiliary electrodes is called a faradaic current. The reaction can be divided into two types. The current generated due to the reduction of the analyte is called cathodic current, and it carries a positive charge. In contrast, the current produced by analyte oxidation is known as an anodic current, and it has a negative charge. The applied potential at the working electrode determines the faradaic current flow, and...
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Updated: Jun 3, 2025

Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway
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A Study on the Battery Recycling Process and Risk Estimation.

Taeho Kim1, Cheolhee Yoon1, Seungho Jung1

  • 1Department of Environmental and Safety Engineering, Ajou University, Suwon 16499, Republic of Korea.

International Journal of Environmental Research and Public Health
|January 8, 2025
PubMed
Summary
This summary is machine-generated.

Recycling lithium-ion batteries is crucial for sustainability. This study identifies sulfuric acid leaching as the highest risk process, while dismantling and heat treatment pose the lowest risks for battery recycling safety.

Keywords:
RAC matrixbatterybattery recyclinghydrometallurgical processrisk assessment

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Area of Science:

  • Materials Science
  • Environmental Science
  • Chemical Engineering

Background:

  • Growing demand for secondary batteries necessitates sustainable recycling practices.
  • Conflict mineral concerns and limited reserves highlight the urgency of battery recycling research.
  • Lack of safety data and use of hazardous chemicals pose significant risks in battery recycling.

Purpose of the Study:

  • To generalize battery recycling processes from existing literature.
  • To estimate the relative risks associated with each step in battery recycling.
  • To provide foundational data for quantitative risk assessment in the battery recycling industry.

Main Methods:

  • Generalized battery recycling process based on literature review.
  • Risk Assessment Code (RAC) matrix from MIL-STD-882E for risk estimation.
  • NFPA 704 for severity assessment and WEEE report with event analysis for probability determination.

Main Results:

  • The leaching process utilizing sulfuric acid (H₂SO₄) for lithium extraction was identified as the highest risk.
  • Dismantling and heat treatment processes were found to have the lowest associated risks.
  • Calculated probability factors for each process offer data for future quantitative risk assessments.

Conclusions:

  • Understanding and quantifying risks in battery recycling is essential for safety management.
  • The study provides a framework for assessing risks in secondary battery recycling.
  • The findings are expected to serve as crucial data for advancing safe and sustainable battery recycling technologies.