TY - JOUR
T1 - Biomass-derived SiOx/C nanocomposite anode synthesis by induction heating for lithium ion battery
AU - Tunc, Ipek
AU - Karahan, Billur Deniz
AU - Keles, Ozgul
N1 - Publisher Copyright:
© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2024.
PY - 2024/10
Y1 - 2024/10
N2 - Graphite is the main anode active material used in commercial lithium ion batteries and it is currently included in the European Union’s Critical Raw Materials list. Due to increased demand in the battery market, a global graphite shortage is expected within the next five years. Therefore, an alternative anode active material is needed to substitute graphite. Motivated by this need, this paper proposes a green synthesis method for producing SiOx/C nanocomposite anode active material from an organic waste, namely rice husk, via a single-step induction heating process. In this study, for the first time in the open literature, rice husk is pyrolyzed under a controlled atmosphere with fast heating (> 50 °C/min) to be used as an alternative to graphite for lithium ion batteries. Fast heating is employed to preserve the maximum amount of carbon in the structure with minimal agglomeration. Four samples (800-Ar, 750-Ar, 700-Ar, 700-Ar-H) are fabricated to study the effect of pyrolysis conditions (temperature and atmosphere) on the formation of rice husk-derived amorphous SiOx/C nanocomposite anodes, also referred to as biochar. Their electrochemical performances are then tested. Biochar produced at 700 °C under the argon atmosphere (700-Ar) delivers the highest specific capacities of 1366, 800, and 275 mAh/g in the 1st, 5th, and 200th cycles. This is attributed to the reduction of silica to SiOx and high amount of carbon, which creates conductive pathways in the structure while buffering volumetric expansion during cycling. Graphical abstract: (Figure presented.)
AB - Graphite is the main anode active material used in commercial lithium ion batteries and it is currently included in the European Union’s Critical Raw Materials list. Due to increased demand in the battery market, a global graphite shortage is expected within the next five years. Therefore, an alternative anode active material is needed to substitute graphite. Motivated by this need, this paper proposes a green synthesis method for producing SiOx/C nanocomposite anode active material from an organic waste, namely rice husk, via a single-step induction heating process. In this study, for the first time in the open literature, rice husk is pyrolyzed under a controlled atmosphere with fast heating (> 50 °C/min) to be used as an alternative to graphite for lithium ion batteries. Fast heating is employed to preserve the maximum amount of carbon in the structure with minimal agglomeration. Four samples (800-Ar, 750-Ar, 700-Ar, 700-Ar-H) are fabricated to study the effect of pyrolysis conditions (temperature and atmosphere) on the formation of rice husk-derived amorphous SiOx/C nanocomposite anodes, also referred to as biochar. Their electrochemical performances are then tested. Biochar produced at 700 °C under the argon atmosphere (700-Ar) delivers the highest specific capacities of 1366, 800, and 275 mAh/g in the 1st, 5th, and 200th cycles. This is attributed to the reduction of silica to SiOx and high amount of carbon, which creates conductive pathways in the structure while buffering volumetric expansion during cycling. Graphical abstract: (Figure presented.)
KW - Energy storage
KW - Induction heating
KW - Lithium ion batteries
KW - Rice husk
KW - SiO/C anodes
UR - http://www.scopus.com/inward/record.url?scp=85203005329&partnerID=8YFLogxK
U2 - 10.1007/s00339-024-07841-9
DO - 10.1007/s00339-024-07841-9
M3 - Article
AN - SCOPUS:85203005329
SN - 0947-8396
VL - 130
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 10
M1 - 677
ER -