TY - JOUR
T1 - Hollow silica-embedded dehydrogenated polyacrylonitrile fibers as anode for the next-generation lithium-ion batteries
AU - Belgibayeva, Ayaulym
AU - Kydyrbayeva, Uldana
AU - Turarova, Gulderaiym
AU - Nurpeissova, Arailym
AU - Kalybekkyzy, Sandugash
AU - Kurmanbayeva, Indira
AU - Mentbayeva, Almagul
AU - Bakenov, Zhumabay
N1 - Publisher Copyright:
© 2024 Elsevier Ltd
PY - 2025/4
Y1 - 2025/4
N2 - The current demand for higher energy density and faster charging batteries requires the development of advanced electrode materials for lithium-ion batteries (LIBs). Herein, we present synthesis of hollow silica-embedded dehydrogenated polyacrylonitrile (SiO2/DPAN/KB) fibers as a novel anode material for next-generation LIBs utilizing electrospinning with subsequent low-temperature dehydrogenation at 300 °C. The dehydrogenation process transforms PAN fibers into highly conductive carbonaceous material, further improving electrochemical performance of the anode. Electrochemical characterization reveals that compared to pristine hollow SiO2 and DPAN fibers, the SiO2/DPAN/KB fibers exhibit superior lithium storage properties, including high specific capacity, excellent cycling stability, retaining 940 mAh g−1 after 100 cycles at 0.1 A g−1, and superior specific capacity of 800 mAh g−1 after 300 cycles at a high current density of 1 A g−1. These findings highlight the potential of SiO2/DPAN/KB fibers as promising anode materials for next-generation LIBs, paving the way for the development of high-performance energy storage devices.
AB - The current demand for higher energy density and faster charging batteries requires the development of advanced electrode materials for lithium-ion batteries (LIBs). Herein, we present synthesis of hollow silica-embedded dehydrogenated polyacrylonitrile (SiO2/DPAN/KB) fibers as a novel anode material for next-generation LIBs utilizing electrospinning with subsequent low-temperature dehydrogenation at 300 °C. The dehydrogenation process transforms PAN fibers into highly conductive carbonaceous material, further improving electrochemical performance of the anode. Electrochemical characterization reveals that compared to pristine hollow SiO2 and DPAN fibers, the SiO2/DPAN/KB fibers exhibit superior lithium storage properties, including high specific capacity, excellent cycling stability, retaining 940 mAh g−1 after 100 cycles at 0.1 A g−1, and superior specific capacity of 800 mAh g−1 after 300 cycles at a high current density of 1 A g−1. These findings highlight the potential of SiO2/DPAN/KB fibers as promising anode materials for next-generation LIBs, paving the way for the development of high-performance energy storage devices.
KW - Anode
KW - Dehydrogenated polyacrylonitrile
KW - Electrospinning
KW - Hollow structure
KW - Silica
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UR - http://www.scopus.com/inward/citedby.url?scp=85211076291&partnerID=8YFLogxK
U2 - 10.1016/j.materresbull.2024.113248
DO - 10.1016/j.materresbull.2024.113248
M3 - Article
AN - SCOPUS:85211076291
SN - 0025-5408
VL - 184
JO - Materials Research Bulletin
JF - Materials Research Bulletin
M1 - 113248
ER -
