Biowaste Orange Peel‐Derived Mesoporous Carbon as a Cost‐Effective Anode Material with Ultra‐Stable Cyclability for Potassium‐Ion Batteries. Issue 10 (30th June 2020)

• Record Type: Journal Article
• Authors: Verma, Rakesh; Singhbabu, Yashabanta N.; Didwal, Pravin N.; Nguyen, An‐Giang; Kim, Jaekook; Park, Chan‐Jin
• Is Part Of: Batteries & supercaps. Volume 3:Issue 10(2020)
• Page Start: 1099
• Page End: 1111
• Publication Date: 2020-06-30
• Subjects: potassium-ion batteries -- 3D interconnected mesoporous carbon -- biomass -- cyclability -- full cell; Electrochemistry -- Periodicals; Electrodes -- Periodicals; Electric batteries -- Periodicals; 621.31242
• DOI: 10.1002/batt.202000068
• Languages: English
• ISSNs: 2566-6223

Abstract

Abstract: Potassium‐ion batteries (PIBs) are promising alternative to Lithium‐ion batteries (LIBs) owing to their economic merits. However, the PIBs have not met suitable anode materials comparable to graphite in LIBs. We synthesised an orange peel‐derived mesoporous carbon (OPDMC) as a potential anode material for high performance PIBs via facile one‐step carbonisation with self‐activation from waste orange peel. The OPDMC‐1000, which were carbonised at 1000 °C, exhibited impressive initial discharge/charge capacities of 408/224 mAh g −1 at 30 mA g −1 and retained the reversible capacity of 208.57 mAh g −1 over 100 cycles. Even after 2000 and 3000 cycles at specific currents of 200 and 500 mA g −1, it maintained the reversible capacities of 150.37 and 112 mAh g −1, respectively. A full cell employing the OPDMC exhibited an initial reversible discharge capacity of 185.32 mAh g −1 at 50 mA g −1 with capacity retention of 71.60 % after 50 cycles, indicating its practical applicability. Abstract : When life gives you orange peel : 3D interconnected mesoporous carbon was synthesised through a facile one‐step carbonization approach without introducing an activation agent and pores were generated via a self‐activation process. The 3D interconnected mesoporous carbon was used as a high‐performance anode material in potassium‐ion batteries (PIBs) for the first time. It exhibits long‐term cyclability (3000 cycles) and excellent rate performance.