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Title: High capacity Li-ion battery anodes: Impact of crystallite size, surface chemistry and PEG-coating

Abstract

Battery electrodes are complex mesoscale systems comprised of an active material, conductive agent, current collector, and polymeric binder. Previous work showed that introduction of poly [3-(potassium-4-butanoate) thiophene] (PPBT) as a binder component coupled with a polyethylene glycol (PEG) surface coating on magnetite (Fe3O4) nanoparticles enhanced electron and ion transport in the high capacity anode system. Here, the impact of Fe3O4 crystallite size (10 nm vs. 20 nm) and surface chemistry were explored to evaluate their effects on interfacial interactions within the composite PEG/PPBT based electrodes and resultant battery performance. The Fe3O4 synthesis methods inevitably lead to differences in surface chemistry. For instance, the Fe3O4 particles synthesized using ammonium hydroxide appeared more dispersed, and afforded improved rate capability performance. Notably, chemical interactions between the active nanoparticles and PPBT binder were only seen with particles synthesized using triethylamine. Capacity retention and cycling performance were unaffected. Thus, this study provides fundamental insights into the significant impact of active material synthesis on the design and fabrication of composite battery electrodes.

Authors:
 [1];  [1];  [2];  [1];  [3];  [4];  [4];  [4];  [5];  [6];  [5];  [7]
  1. Georgia Inst. of Technology, Atlanta, GA (United States). Dept. of Chemical and Biomolecular Engineering
  2. Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering
  3. Stony Brook Univ., NY (United States). Dept. of Chemistry
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Energy Sciences Directorate
  5. Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering and Dept. of Chemistry
  6. Stony Brook Univ., NY (United States). Dept. of Materials Science and Engineering and Dept. of Chemistry; Brookhaven National Lab. (BNL), Upton, NY (United States). Energy Sciences Directorate
  7. Georgia Inst. of Technology, Atlanta, GA (United States). Dept. of Chemical and Biomolecular Engineering and Dept. of Chemistry and Biochemistry and Dept. Materials Science and Engineering
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II); Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS); Energy Frontier Research Centers (EFRC) (United States). Center for Mesoscale Transport Properties (m2M)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF); Georgia Inst. of Technology, Atlanta, GA (United States)
OSTI Identifier:
1431445
Alternate Identifier(s):
OSTI ID: 1576866
Report Number(s):
BNL-203442-2018-JAAM
Journal ID: ISSN 0013-4686
Grant/Contract Number:  
SC0012704; SC0012673; AC02-06CH11357; 1109408
Resource Type:
Accepted Manuscript
Journal Name:
Electrochimica Acta
Additional Journal Information:
Journal Volume: 260; Journal Issue: C; Journal ID: ISSN 0013-4686
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Fe3O4; Magnetite; Poly[3-(potassium-4-butanoate) thiophene]; Poly(thiophene); Binders

Citation Formats

Minnici, Krysten, Kwon, Yo Han, Huie, Matthew M., de Simon, Mark V., Zhang, Bingjie, Bock, David C., Wang, Jiajun, Wang, Jun, Takeuchi, Kenneth J., Takeuchi, Esther S., Marschilok, Amy C., and Reichmanis, Elsa. High capacity Li-ion battery anodes: Impact of crystallite size, surface chemistry and PEG-coating. United States: N. p., 2017. Web. doi:10.1016/j.electacta.2017.12.010.
Minnici, Krysten, Kwon, Yo Han, Huie, Matthew M., de Simon, Mark V., Zhang, Bingjie, Bock, David C., Wang, Jiajun, Wang, Jun, Takeuchi, Kenneth J., Takeuchi, Esther S., Marschilok, Amy C., & Reichmanis, Elsa. High capacity Li-ion battery anodes: Impact of crystallite size, surface chemistry and PEG-coating. United States. doi:10.1016/j.electacta.2017.12.010.
Minnici, Krysten, Kwon, Yo Han, Huie, Matthew M., de Simon, Mark V., Zhang, Bingjie, Bock, David C., Wang, Jiajun, Wang, Jun, Takeuchi, Kenneth J., Takeuchi, Esther S., Marschilok, Amy C., and Reichmanis, Elsa. Wed . "High capacity Li-ion battery anodes: Impact of crystallite size, surface chemistry and PEG-coating". United States. doi:10.1016/j.electacta.2017.12.010. https://www.osti.gov/servlets/purl/1431445.
@article{osti_1431445,
title = {High capacity Li-ion battery anodes: Impact of crystallite size, surface chemistry and PEG-coating},
author = {Minnici, Krysten and Kwon, Yo Han and Huie, Matthew M. and de Simon, Mark V. and Zhang, Bingjie and Bock, David C. and Wang, Jiajun and Wang, Jun and Takeuchi, Kenneth J. and Takeuchi, Esther S. and Marschilok, Amy C. and Reichmanis, Elsa},
abstractNote = {Battery electrodes are complex mesoscale systems comprised of an active material, conductive agent, current collector, and polymeric binder. Previous work showed that introduction of poly [3-(potassium-4-butanoate) thiophene] (PPBT) as a binder component coupled with a polyethylene glycol (PEG) surface coating on magnetite (Fe3O4) nanoparticles enhanced electron and ion transport in the high capacity anode system. Here, the impact of Fe3O4 crystallite size (10 nm vs. 20 nm) and surface chemistry were explored to evaluate their effects on interfacial interactions within the composite PEG/PPBT based electrodes and resultant battery performance. The Fe3O4 synthesis methods inevitably lead to differences in surface chemistry. For instance, the Fe3O4 particles synthesized using ammonium hydroxide appeared more dispersed, and afforded improved rate capability performance. Notably, chemical interactions between the active nanoparticles and PPBT binder were only seen with particles synthesized using triethylamine. Capacity retention and cycling performance were unaffected. Thus, this study provides fundamental insights into the significant impact of active material synthesis on the design and fabrication of composite battery electrodes.},
doi = {10.1016/j.electacta.2017.12.010},
journal = {Electrochimica Acta},
number = C,
volume = 260,
place = {United States},
year = {2017},
month = {12}
}

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