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In Situ Characterization of Interfacial and Bulk Properties of Lithium Polymer Batteries Using 4-Probe DC Techniques

Published online by Cambridge University Press:  25 February 2011

Meilin Liu ,
Steven J. Visco  and
Lutgard C. De Jonghe
Meilin Liu
Affiliation:
School of Materials Science and Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332–0245.
Steven J. Visco
Affiliation:
University of California, Lawrence Berkeley Laboratory, Materials Science Division, Berkeley, CA 94720.
Lutgard C. De Jonghe
Affiliation:
University of California, Lawrence Berkeley Laboratory, Materials Science Division, Berkeley, CA 94720.
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Abstract

The use of transient and steady-state 4-probe techniques for the evaluation of the limitations to performance in solid-state electrochemical devices is described. The application of sequential, bipolar square-wave current pulses to a solid polymer cell with two internal reference electrodes allows separation of the polarization behavior of the various components of the cell, and indicates the rate limiting processes in the cell. Careful design of the experimental cell and appropriate selection of current pulse width allows evaluation of fundamental kinetic and transport properties, as well as activation parameters. Steady state constant-current measurements using 4-probe cells allows in situ observation of interface stability and/or polarization as a function of time as the cell is cycling.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 293: Symposium U – Solid State Ionics III , 1992 , 107
Copyright
Copyright © Materials Research Society 1993

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References

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