skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electrochemical Stability of Carbon Fibers Compared to Metal Foils as Current Collectors for Lithium-Ion Batteries

Abstract

The electrochemical behaviors of highly conductive, fully-graphitic, semi-graphitic and non-graphitic carbon fibers were studied as the cathode current collectors of lithium batteries in standard electrolyte (alkyl carbonate/LiPF6) solutions and compared to bare aluminum (Al). All of these current collectors demonstrate a stable electrochemical behavior within the potential range of 2.5 to 5 V, due to passivation by surface films. Carbon fibers have comparable electrochemical stability of Al and may be used in place Al foil. While the carbon fibers do not contribute any irreversible or extra capacity when they are cycled below 4.5 V, for fully-graphitic and semi-graphitic fibers PF6 intercalation and deintercalation into the carbon fiber may occur when they are cycled at high potentials >4.5 V.

Authors:
 [1];  [1];  [1];  [1]
  1. ORNL
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Shared Research Equipment Collaborative Research Center
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1050313
DOE Contract Number:  
DE-AC05-00OR22725
Resource Type:
Journal Article
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 159; Journal Issue: 10; Journal ID: ISSN 0013-4651
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; 36 MATERIALS SCIENCE; ALUMINIUM; CAPACITY; CARBON FIBERS; CATHODES; ELECTROLYTES; FIBERS; LITHIUM; PASSIVATION; STABILITY; LITHIUM IONS; ELECTRIC BATTERIES; Electrochemical stability; cathode current collector; Carbon fibers; Aluminium; Titanium; Lithium battery

Citation Formats

Martha, Surendra K, Dudney, Nancy J, Kiggans, Jim, and Nanda, Jagjit. Electrochemical Stability of Carbon Fibers Compared to Metal Foils as Current Collectors for Lithium-Ion Batteries. United States: N. p., 2012. Web. doi:10.1149/2.041210jes.
Martha, Surendra K, Dudney, Nancy J, Kiggans, Jim, & Nanda, Jagjit. Electrochemical Stability of Carbon Fibers Compared to Metal Foils as Current Collectors for Lithium-Ion Batteries. United States. https://doi.org/10.1149/2.041210jes
Martha, Surendra K, Dudney, Nancy J, Kiggans, Jim, and Nanda, Jagjit. 2012. "Electrochemical Stability of Carbon Fibers Compared to Metal Foils as Current Collectors for Lithium-Ion Batteries". United States. https://doi.org/10.1149/2.041210jes.
@article{osti_1050313,
title = {Electrochemical Stability of Carbon Fibers Compared to Metal Foils as Current Collectors for Lithium-Ion Batteries},
author = {Martha, Surendra K and Dudney, Nancy J and Kiggans, Jim and Nanda, Jagjit},
abstractNote = {The electrochemical behaviors of highly conductive, fully-graphitic, semi-graphitic and non-graphitic carbon fibers were studied as the cathode current collectors of lithium batteries in standard electrolyte (alkyl carbonate/LiPF6) solutions and compared to bare aluminum (Al). All of these current collectors demonstrate a stable electrochemical behavior within the potential range of 2.5 to 5 V, due to passivation by surface films. Carbon fibers have comparable electrochemical stability of Al and may be used in place Al foil. While the carbon fibers do not contribute any irreversible or extra capacity when they are cycled below 4.5 V, for fully-graphitic and semi-graphitic fibers PF6 intercalation and deintercalation into the carbon fiber may occur when they are cycled at high potentials >4.5 V.},
doi = {10.1149/2.041210jes},
url = {https://www.osti.gov/biblio/1050313}, journal = {Journal of the Electrochemical Society},
issn = {0013-4651},
number = 10,
volume = 159,
place = {United States},
year = {Sun Jan 01 00:00:00 EST 2012},
month = {Sun Jan 01 00:00:00 EST 2012}
}