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- Title
Simplified Synthesis of Biomass‐Derived Si/C Composites as Stable Anode Materials for Lithium‐Ion Batteries.
- Authors
Majeed, Muhammad K.; Saleem, Adil; Wang, Chunsheng; Song, Chunhua; Yang, Jian
- Abstract
Synthesis of silicon/carbon (Si/C) composites from biomass resources could enable the effective utilization of agricultural products in the battery industry with economical as well as environmental benefits. Herein, a simplified process was developed to synthesize Si/C from biomass, by using a low‐cost agricultural byproduct "rice husk (RH)" as a model. This process includes the calcination of RH for SiO2/C and the reduction of SiO2/C by Al in molten salts at a moderate temperature. This process does not need the removal of carbon before thermal reduction of SiO2, which is thought to be necessary to avoid the formation of SiC at elevated temperatures. Thus, carbon derived from biomass can be directly used for Si/C composites for anode materials. The resultant Si/C shows a high reversible capacity of 1309 mAh g−1 and long cycle life (300 cycles). This research advocates a new and simplified strategy for the synthesis of RH‐based biomass‐derived Si/C, which is beneficial for low‐cost, environmentally friendly, and green energy storage applications.
- Subjects
LITHIUM-ion batteries; CLEAN energy; ANODES; RICE hulls; HIGH temperatures; ELECTROCHEMICAL electrodes; CALCINATION (Heat treatment)
- Publication
Chemistry - A European Journal, 2020, Vol 26, Issue 46, p10544
- ISSN
0947-6539
- Publication type
Article
- DOI
10.1002/chem.202000953