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Title: An investigation of the impedance rise and power fade in high-power, Li-ion cells.

Abstract

Two different cell chemistries, Gen 1 and Gen 2, were subjected to accelerated aging experiments. In Gen 1 calendar life experiments, useful cell life was strongly affected by temperature and time. Higher temperature accelerated cell performance degradation. The rates of impedance increase and power fade followed simple laws based on a power of time and Arrhenius kinetics. The data have been modeled using these two concepts, and the calculated data agree well with the experimental values. The Gen 1 calendar life increase and power fade data follow (time){sup 1/2} kinetics. This may be due to solid electrolyte interface (SEI) layer growth. From the cycle life experiments, the impedance increase data follow (time){sup 1/2} kinetics also, there is an apparent change in overall power fade mechanism, from 3% to 6% {Delta}SOC. Here, the power of time changes to a value less than 0.5 indicating that the power fade mechanism is due to factors more complex than just SEI layer growth. The Gen 2 calendar and cycle life experiments show the effect of cell chemistry on kinetics. The calendar life impedance data follow either ''linear'' or (time){sup 1/2} plus linear kinetics, depending on time and temperature.

Authors:
; ; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab., IL (US)
Sponsoring Org.:
US Department of Energy (US)
OSTI Identifier:
803902
Report Number(s):
ANL/CMT/CP-106667
TRN: US200301%%584
DOE Contract Number:  
W-31-109-ENG-38
Resource Type:
Conference
Resource Relation:
Conference: EVS 19: 19th International Battery, Hybrid and Fuel Cell Electric Vehicle Symposium, Busan (KR), 10/19/2002--10/23/2002; Other Information: PBD: 18 Jul 2002
Country of Publication:
United States
Language:
English
Subject:
30 DIRECT ENERGY CONVERSION; AGING; CHEMISTRY; FUEL CELLS; IMPEDANCE; KINETICS; PERFORMANCE; SOLID ELECTROLYTES

Citation Formats

Bloom, I, Jones, S A, Battaglia, V S, Polzin, E G, Henriksen, G L, Motloch, C G, Christophersen, J P, Belt, J R, Ho, C D, Wright, R B, Jungst, R G, Case, H L, and Doughty, D H. An investigation of the impedance rise and power fade in high-power, Li-ion cells.. United States: N. p., 2002. Web.
Bloom, I, Jones, S A, Battaglia, V S, Polzin, E G, Henriksen, G L, Motloch, C G, Christophersen, J P, Belt, J R, Ho, C D, Wright, R B, Jungst, R G, Case, H L, & Doughty, D H. An investigation of the impedance rise and power fade in high-power, Li-ion cells.. United States.
Bloom, I, Jones, S A, Battaglia, V S, Polzin, E G, Henriksen, G L, Motloch, C G, Christophersen, J P, Belt, J R, Ho, C D, Wright, R B, Jungst, R G, Case, H L, and Doughty, D H. Thu . "An investigation of the impedance rise and power fade in high-power, Li-ion cells.". United States. https://www.osti.gov/servlets/purl/803902.
@article{osti_803902,
title = {An investigation of the impedance rise and power fade in high-power, Li-ion cells.},
author = {Bloom, I and Jones, S A and Battaglia, V S and Polzin, E G and Henriksen, G L and Motloch, C G and Christophersen, J P and Belt, J R and Ho, C D and Wright, R B and Jungst, R G and Case, H L and Doughty, D H},
abstractNote = {Two different cell chemistries, Gen 1 and Gen 2, were subjected to accelerated aging experiments. In Gen 1 calendar life experiments, useful cell life was strongly affected by temperature and time. Higher temperature accelerated cell performance degradation. The rates of impedance increase and power fade followed simple laws based on a power of time and Arrhenius kinetics. The data have been modeled using these two concepts, and the calculated data agree well with the experimental values. The Gen 1 calendar life increase and power fade data follow (time){sup 1/2} kinetics. This may be due to solid electrolyte interface (SEI) layer growth. From the cycle life experiments, the impedance increase data follow (time){sup 1/2} kinetics also, there is an apparent change in overall power fade mechanism, from 3% to 6% {Delta}SOC. Here, the power of time changes to a value less than 0.5 indicating that the power fade mechanism is due to factors more complex than just SEI layer growth. The Gen 2 calendar and cycle life experiments show the effect of cell chemistry on kinetics. The calendar life impedance data follow either ''linear'' or (time){sup 1/2} plus linear kinetics, depending on time and temperature.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2002},
month = {7}
}

Conference:
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