Facile fabrication of polyacrylonitrile‐derived porous carbon beads via electron beam irradiation as anode materials for Li‐ion batteries. (31st January 2021)

• Record Type: Journal Article
• Authors: Lee, Byoung‐Min; Umirov, Nurzhan; Lee, Jang‐Yong; Lee, Jae‐Young; Choi, Beom‐Seok; Hong, Sung‐Kwon; Kim, Sung‐Soo; Choi, Jae‐Hak
• Other Names: Atabani Abdulaziz E. guestEditor.
• Is Part Of: International journal of energy research. Volume 45:Number 6(2021)
• Page Start: 9530
• Page End: 9540
• Publication Date: 2021-01-31
• Subjects: anode -- electron beam irradiation -- Li‐ion battery -- polyacrylonitrile -- stabilization; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Power resources -- Research -- Periodicals; 621.042
• DOI: 10.1002/er.6479
• Languages: English
• ISSNs: 0363-907X

Abstract

Summary: In this study, porous carbon beads (PCBs) as an anode material for Li‐ion batteries (LiBs) were prepared from polyacrylonitrile (PAN) via electron beam irradiation (EBI). Porous PAN beads (PPBs) were irradiated with electron beams, stabilized under the optimized conditions, and finally carbonized to produce PCBs. EBI was introduced to shorten the conventional thermal stabilization. The results of N2 physisorption measurement revealed that the PCBs had hierarchical pore structures. The PCB‐based anodes exhibited an initial reversible capacity of 387 mAh g −1 at 0.2 C and a high capacity retention of 83.2% after 200 cycles. Therefore, the PCBs prepared via EBI are promising anode material for LiBs. Abstract : Porous carbon beads (PCBs) were prepared from polyacrylonitrile via electron beam irradiation (EBI) and carbonization. EBI was found to be a useful tool to prepare PCBs due to their advantages such as lower energy and shorter time. The PCBs prepared via EBI showed an excellent electrochemical performance as an anode material for Li‐ion batteries.