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Title: A rapid method for the determination of lithium transference numbers

Abstract

Lithium ion-conducting polymer electrolytes are of increasing interest for use in lithium-polymer batteries. Lithium transference numbers, the net fraction of current carried by lithium in a cell, are key figures of merit for potential lithium battery electrolytes. The authors describe the Electrophoretic NMR (ENMR) method for the determination of lithium ion transference numbers (T{sub Li}). The work presented is a proof-of-concept of the application of the ENMR method to lithium ion transference measurements for several different lithium salts in gelled electrolytes. The NMR method allows accurate determination of T{sub Li} values, as indicated by the similarity of T{sub Li} in the gelled electrolytes to those in aqueous electrolyte solutions at low salt concentration. Based on calculated tradeoffs of various experimental parameters, they also discuss some conclusions concerning the range of applicability of the method to other electrolytes with lower lithium mobility.

Authors:
; ; ; ;  [1]
  1. Los Alamos National Lab., NM (United States). Electronics Materials and Device Research Group
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Assistant Secretary for Energy Efficiency and Renewable Energy, Washington, DC (United States)
OSTI Identifier:
474866
Report Number(s):
LA-UR-97-735; CONF-961040-25
ON: DE97004999; TRN: AHC29711%%36
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Conference
Resource Relation:
Conference: 190. meeting of the Electrochemical Society and technical exhibition, San Antonio, TX (United States), 6-11 Oct 1996; Other Information: PBD: [1997]
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; METAL-NONMETAL BATTERIES; LITHIUM COMPOUNDS; ELECTROPHORESIS; NUCLEAR MAGNETIC RESONANCE; ELECTROLYTES; CHARGE TRANSPORT; ELECTRICAL PROPERTIES

Citation Formats

Zawodzinski, Jr, T A, Dai, H, Sanderson, S, Davey, J, and Uribe, F. A rapid method for the determination of lithium transference numbers. United States: N. p., 1997. Web.
Zawodzinski, Jr, T A, Dai, H, Sanderson, S, Davey, J, & Uribe, F. A rapid method for the determination of lithium transference numbers. United States.
Zawodzinski, Jr, T A, Dai, H, Sanderson, S, Davey, J, and Uribe, F. 1997. "A rapid method for the determination of lithium transference numbers". United States. https://www.osti.gov/servlets/purl/474866.
@article{osti_474866,
title = {A rapid method for the determination of lithium transference numbers},
author = {Zawodzinski, Jr, T A and Dai, H and Sanderson, S and Davey, J and Uribe, F},
abstractNote = {Lithium ion-conducting polymer electrolytes are of increasing interest for use in lithium-polymer batteries. Lithium transference numbers, the net fraction of current carried by lithium in a cell, are key figures of merit for potential lithium battery electrolytes. The authors describe the Electrophoretic NMR (ENMR) method for the determination of lithium ion transference numbers (T{sub Li}). The work presented is a proof-of-concept of the application of the ENMR method to lithium ion transference measurements for several different lithium salts in gelled electrolytes. The NMR method allows accurate determination of T{sub Li} values, as indicated by the similarity of T{sub Li} in the gelled electrolytes to those in aqueous electrolyte solutions at low salt concentration. Based on calculated tradeoffs of various experimental parameters, they also discuss some conclusions concerning the range of applicability of the method to other electrolytes with lower lithium mobility.},
doi = {},
url = {https://www.osti.gov/biblio/474866}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu May 01 00:00:00 EDT 1997},
month = {Thu May 01 00:00:00 EDT 1997}
}

Conference:
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