Related Experiment Video
Updated: Apr 8, 2026

The Effect of Charging and Discharging Lithium Iron Phosphate-graphite Cells at Different Temperatures on Degradation
Published on: July 18, 2018
Reactivated Cathode Material from Waste Alkaline Batteries for Supercapacitor Electrodes: Interplay Study Between
Chandrashekhar S Patil1, Muhammad Noman1, Sourabh B Ghode1
1Department of Ocean System Engineering, Jeju National University, 102 Jejudaehakro, Jeju, 63243, Republic of Korea.
None:
Waste alkaline batteries (WABs) are rapidly consumed over billions of tons annually, which presents significant challenges for both the environment and public health. To tackle these challenges, recycling WABs through sustainable methods can effectively align with the principles of a circular economy. It not only addresses pressing waste management issues but also meets the growing demand for energy storage solutions. This work investigates the pyrometallurgical reactivation cathode materials of WAB (RC-WABs) at varying pyrolysis temperatures (100, 300, 600, and 1000 °C) to produce high-performance electrode materials for supercapacitors. Among these, cathode materials treated at 600 °C exhibited a highly porous structure with a specific surface area of 78.07 m2 g-1 and a pore volume of 0.983 cm3 g-1, which significantly enhanced electrochemical performance. The results indicated that this material achieved a specific capacitance of 1177.16 F g-1 at a current density of 3mA cm-2 in a 1 M KOH electrolyte and maintained an impressive ≈98% capacitance retention after 10 000 charging cycles. When integrated into a symmetric supercapacitor configuration, these materials demonstrated an energy density of 18.85 Wh kg-1 and a power density of 224.01 W kg-1. Hence, the results can provide sustainable solutions for the interconnected challenges of waste management and energy storage.
More Related Videos
11:25Identification and Quantification of Decomposition Mechanisms in Lithium-Ion Batteries; Input to Heat Flow Simulation for Modeling Thermal Runaway
Published on: March 7, 2022
12:00Evaluating the Electrochemical Properties of Supercapacitors using the Three-Electrode System
Published on: January 7, 2022
Related Concept Videos
Voltaic/Galvanic Cells
Spontaneous redox reactions occur abundantly in nature. The chemical reaction occurring in a disposable AA battery powering our remote controls is one such example of a spontaneous redox reaction. Another example is the immersion of coiled copper wire into an aqueous silver nitrate solution. The reaction shows a gradual, visually impressive color change from colorless to bright blue and the formation of a grey precipitate on the copper wire. In this experiment,...
Batteries and Fuel Cells