In-situ fabrication of Si/FeSi2@C NPs with volume control effect by fluidized bed chemical vapor deposition as anode materials
Source abstract
Abstract
Silicon (Si) has been proven to be the most potential anode material for the next-generation lithium-ion batteries (LIBs) because of its superior theoretical capacity (∼4200 mAh g −1 ). However, the huge volume changes, unstable solid-state interphase (SEI) layers, and large internal stresses upon the lithiation process severely limit the practical application for commercial LIBs anodes. Herein, we fabricate the carbon-coated Si/FeSi 2 nanoparticles (Si/FeSi 2 @C NPs) with volume control effect by fluidized bed chemical vapor deposition (FBCVD) method to solve the above-mentioned problems. These 15 min-Si/FeSi 2 @C NPs and 30 min-Si/FeSi 2 @C NPs show excellent Li + storage capacity in the first cycle (2705.9/3039.1 mAh g -1 and 2645.9/2984.2 mAh g -1) with high Initial Coulombic Efficiency (ICE) of ∼89.0% and 88.7%. In-situ TEM characterization demonstrates that the carbon coating layer and inert FeSi 2 phase enable a small volume variation, only ∼37.8%, revealing the effective volume expansion control effect, and generating thin SEI layers. Besides, the perfect structure of Si/FeSi 2 @C NPs makes this material a great improvement in rate performance.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Advancements in Battery Materials · Extraction and Separation Processes · Advanced Battery Materials and Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
Show source-provided references
1. High-performance lithium battery anodes using silicon nanowires10.1038/nnano.2007.411 ↗
2. Solution-grown silicon nanowires for lithium-ion battery anodes10.1021/nn901409q ↗
3. First principles study of lithium insertion in bulk silicon10.1088/0953-8984/22/41/415501 ↗
4. Recent progress and perspectives on silicon anode: synthesis and prelithiation for LIBs energy storage10.1016/j.jechem.2021.04.013 ↗
5. Crystallinity of silicon nanoparticles: direct influence on the electrochemical performance of lithium ion battery anodes10.1002/celc.202001108 ↗
6. Silicon anodes for high‐performance storage devices: structural design, material compounding, advances in electrolytes and binders10.1002/cnma.201900708 ↗
7. Recent progress of structural designs of silicon for performance-enhanced lithium-ion batteries10.1016/j.cej.2020.125380 ↗
8. Designing nanostructured Si anodes for high energy lithium ion batteries10.1016/j.nantod.2012.08.004 ↗
9. In situ synthesis of multilayer carbon matrix decorated with copper particles: enhancing the performance of Si as anode for Li-ion batteries10.1021/acsnano.8b08088 ↗
10. Structured silicon anode with superior conductivity and high tap density for full lithium-Ion batteries10.1002/anie.201903709 ↗
11. Alternative layered-structure SiCu composite anodes for high-capacity lithium-ion batteries10.1021/acsaem.1c03195 ↗
12. Structural and electrochemical characterization of Fe–Si/C composite anodes for Li-ion batteries synthesized by mechanical alloying10.1016/j.electacta.2004.07.003 ↗
13. A plasma strategy for high-quality Si/C composite anode: from tailoring the current collector to preparing the active materials10.1016/j.electacta.2020.136222 ↗
14. A review of recent developments in Si/C composite materials for Li-ion batteries10.1016/j.ensm.2020.10.026 ↗
15. Mussel-pearl-inspired design of Si/C composite for ultrastable lithium storage anodes10.1016/j.jallcom.2021.159717 ↗
16. Stress-relieving defects enable ultra-stable silicon anode for Li-ion storage10.1016/j.nanoen.2020.104568 ↗
17. Group IVA element (Si, Ge, Sn)-based alloying/dealloying anodes as negative electrodes for full-cell lithium-ion batteries10.1002/smll.201702000 ↗
18. Effect of dual local structures of amorphous Fe–Si films on the performance of anode of lithium-ion batteries10.1016/j.matchemphys.2020.122666 ↗
19. Mechanochemical synthesis of Fe–Si-based anode materials for high-energy lithium ion full-cells10.1021/acsaem.9b01926 ↗
20. Lithium ion battery anodes using Si-Fe based nanocomposite structures10.1016/j.nanoen.2016.05.007 ↗
21. Amorphous silicon-carbon nanospheres synthesized by chemical vapor deposition using cheap methyltrichlorosilane as improved anode materials for Li-ion batteries10.1039/c3nr00635b ↗
22. Green synthesis and stable li-storage performance of FeSi2/Si@C nanocomposite for lithium-ion batteries10.1021/am300952b ↗
23. A magnesiothermic route to multicomponent nanocomposites of FeSi2@Si@graphene and FeSi2@Si with promising anode performance10.1016/j.electacta.2014.05.121 ↗
24. Si/FeSi2 nanoparticles prepared by thermal plasma with stress‐releasing effect for Li‐ion storage10.1002/cnma.202100039 ↗
25. Advanced silicon nanostructures derived from natural silicate minerals for energy storage and conversion10.1016/j.gee.2021.04.001 ↗
26. Polarized Raman spectra of β-FeSi2 epitaxial film grown by molecular beam epitaxy10.1063/1.5042801 ↗
27. Lithiation behavior of coaxial hollow nanocables of carbon-silicon composite
28. Highly conducting fibrous carbon-coated silicon alloy anode for lithium ion batteries10.1016/j.apsusc.2018.05.165 ↗
29. One-step synthesis of spherical Si/C composites with onion-like buffer structure as high-performance anodes for lithium-ion batteries10.1016/j.ensm.2019.07.045 ↗
30. In situ fabrication of dual coating structured SiO/1D-C/a-C composite as high-performance lithium ion battery anode by fluidized bed chemical vapor deposition10.1016/j.carbon.2020.06.053 ↗
31. Fluidized bed chemical vapor deposition of pyrolytic carbon – I. Effect of deposition conditions on microstructure10.1016/j.carbon.2008.10.023 ↗
32. Double-buffer silicon-carbon anode material by a dynamic self-assembly process for lithium-ion batteries10.1016/j.electacta.2021.139041 ↗
33. One-pot solution synthesis of carbon-coated silicon nanoparticles as an anode material for lithium-ion batteries10.1039/C9CC07255A ↗
34. Electrochemically induced fractures in crystalline silicon anodes10.1016/j.jpowsour.2019.03.105 ↗
35. Electrochemical analysis of silicon nanoparticle lithiation – effect of crystallinity and carbon coating quantity10.1016/j.jpowsour.2019.226769 ↗
36. Enhancing delithiation reversibility of Li15Si4 alloy of silicon nanoparticles-carbon/graphite anode materials for stable-cycling lithium ion batteries by restricting the silicon particle size10.1021/acsami.9b13750 ↗
37. In situ electrochemistry of rechargeable battery materials: status report and perspectives10.1002/adma.201606922 ↗
38. In situ transmission electron microsopy of oxide shell-induced pore formation in (De)lithiated silicon nanowires10.1021/acsenergylett.8b01904 ↗
39. In situ TEM observations of sn-containing silicon nanowires undergoing reversible pore formation due to fast lithiation/delithiation kinetics10.1021/acs.jpcc.5b06386 ↗
40. In situ transmission electron microscopy observations of rechargeable lithium ion batteries10.1016/j.nanoen.2018.11.087 ↗
41. Multiscale buffering engineering in silicon-carbon anode for ultrastable Li-ion storage10.1021/acsnano.9b03355 ↗
42. Building a cycle-stable Fe-Si alloy/carbon nanocomposite anode for Li-Ion batteries through a covalent-bonding method10.1021/acsami.0c08456 ↗
43. Si@Si3N4@C composite with egg-like structure as high-performance anode material for lithium ion batteries10.1016/j.ensm.2019.06.031 ↗