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Title: SWNT Anchored with Carboxylated Polythiophene “Links” on High-Capacity Li-Ion Battery Anode Materials

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.8b00693· OSTI ID:1460700
 [1];  [1];  [2];  [3];  [1]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [4]; ORCiD logo [6]
  1. Georgia Inst. of Technology, Atlanta, GA (United States). Dept. of Chemical and Biomolecular Engineering
  2. Korea Advanced Inst. of Science and Technology (KAIST), Daejeon (Korea, Republic of). Dept. of Chemical and Biomolecular Engineering
  3. Georgia Inst. of Technology, Atlanta, GA (United States). Dept. of Chemistry and Biochemistry
  4. Stony Brook Univ., NY (United States). Dept. of Chemistry. Dept. of Materials Science and Chemical Engineering; Brookhaven National Lab. (BNL), Upton, NY (United States). Energy Sciences Directorate
  5. Stony Brook Univ., NY (United States). Dept. of Chemistry. Dept. of Materials Science and Chemical Engineering
  6. Georgia Inst. of Technology, Atlanta, GA (United States). Dept. of Chemical and Biomolecular Engineering. Dept. of Chemistry and Biochemistry. Dept. of Materials Science and Engineering

In this paper, conjugated polymers possessing polar functionalities were shown to effectively anchor single-walled carbon nanotubes (SWNTs) to the surface of high-capacity anode materials and enable the formation of electrical networks. Specifically, poly[3-(potassium-4-butanoate) thiophene] (PPBT) served as a bridge between SWNT networks and various anode materials, including monodispersed Fe3O4 spheres (sFe3O4) and silicon nanoparticles (Si NPs). The PPBT π-conjugated backbone and carboxylate (COO-) substituted alkyl side chains, respectively, attracted the SWNT π-electron surface and chemically interacted with active material surface hydroxyl (-OH) species to form a carboxylate bond. Beneficially, this architecture effectively captured cracked/pulverized particles that typically form as a result of repeated active material volume changes that occur during charging and discharging. Thus and finally, changes in electrode thickness were suppressed substantially, stable SEI layers were formed, electrode resistance was reduced, and enhanced electrode kinetics was observed. Together, these factors led to excellent electrochemical performance.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., NY (United States); Georgia Institute of Technology, Atlanta, GA (United States); Energy Frontier Research Centers (EFRC) (United States). Center for Mesoscale Transport Properties (m2M)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704; SC0012673
OSTI ID:
1460700
Report Number(s):
BNL-207836-2018-JAAM
Journal Information:
Journal of the American Chemical Society, Vol. 140, Issue 17; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 64 works
Citation information provided by
Web of Science

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Cited By (7)

Scalable Synthesis of an Artificial Polydopamine Solid‐Electrolyte‐Interface‐Assisted 3D rGO/Fe 3 O 4 @PDA Hydrogel for a Highly Stable Anode with Enhanced Lithium‐Ion‐Storage Properties journal January 2019
In situ fabrication of hierarchical iron oxide spheres@N-doped 3D porous graphene aerogel for superior lithium storage journal January 2020
Tube-in-tube tin dioxide superstructures with enhanced lithium storage performance journal January 2019
Sandwich-Type Si@C/rGO Composite Stabilized by Polyetherimide-Derived Interface with Efficient Lithium Storage and High Rate Performance journal January 2019
Cobalt-promoted fabrication of 3D carbon with a nanotube-sheet mutual support structure: scalable preparation of a high-performance anode material for Li-ion batteries journal November 2019
Polythiophene Grafted onto Single‐Wall Carbon Nanotubes through Oligo(ethylene oxide) Linkages for Supercapacitor Devices with Enhanced Electrochemical Performance journal August 2019
Polypyrrole modified hierarchical porous CoS2@RGO aerogel electrode for ultrafast sodium storage journal December 2019

Figures / Tables (3)


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