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Fast and accurate measurement of entropy profiles of commercial lithium-ion cells

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Fast and accurate measurement of entropy profiles of commercial lithium-ion cells. / Osswald, Patrick J. ; Rosario, Manuel del; Garche, Jürgen et al.
In: Electrochimica Acta, Vol. 177, 20.09.2015, p. 270-276.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

Osswald, PJ, Rosario, MD, Garche, J, Jossen, A & Hoster, H 2015, 'Fast and accurate measurement of entropy profiles of commercial lithium-ion cells', Electrochimica Acta, vol. 177, pp. 270-276. https://doi.org/10.1016/j.electacta.2015.01.191

APA

Osswald, P. J., Rosario, M. D., Garche, J., Jossen, A., & Hoster, H. (2015). Fast and accurate measurement of entropy profiles of commercial lithium-ion cells. Electrochimica Acta, 177, 270-276. https://doi.org/10.1016/j.electacta.2015.01.191

Vancouver

Osswald PJ, Rosario MD, Garche J, Jossen A, Hoster H. Fast and accurate measurement of entropy profiles of commercial lithium-ion cells. Electrochimica Acta. 2015 Sept 20;177:270-276. Epub 2015 Feb 7. doi: 10.1016/j.electacta.2015.01.191

Author

Osswald, Patrick J. ; Rosario, Manuel del ; Garche, Jürgen et al. / Fast and accurate measurement of entropy profiles of commercial lithium-ion cells. In: Electrochimica Acta. 2015 ; Vol. 177. pp. 270-276.

Bibtex

@article{5e8f1e628ea04f32b2bd4fee1b182d36,
title = "Fast and accurate measurement of entropy profiles of commercial lithium-ion cells",
abstract = "We report on an effective approach to speed up the measurement of thermodynamic characterization curves (entropy of reaction ΔrS(x)) of rechargeable batteries, in particular commercial 18,650 lithium ion cells. We propose and demonstrate a measurement and data processing protocol that reduces the time required to record entropy profiles from time scales of weeks to time scales of hours - without loss in accuracy. For time consuming studies such as investigations on ageing of battery cells, entropy profile measurements thus become as feasible as conventional electrochemical characterisation techniques like dV/dQ or cyclic voltammetry. We demonstrate this at the examples of two ageing protocols applied to a commercial high power and a commercial high energy cell, respectively: (i) accelerated calendric aging by storing cells at 100% state of charge at 60 °C and (ii) continuous cycling with a 1 C current at 25 °C.",
keywords = "lithium ion battery, thermodynamics , entropy , 18650 cell , battery ageing",
author = "Osswald, {Patrick J.} and Rosario, {Manuel del} and J{\"u}rgen Garche and Andreas Jossen and Harry Hoster",
year = "2015",
month = sep,
day = "20",
doi = "10.1016/j.electacta.2015.01.191",
language = "English",
volume = "177",
pages = "270--276",
journal = "Electrochimica Acta",
publisher = "Elsevier Ltd",

}

RIS

TY - JOUR

T1 - Fast and accurate measurement of entropy profiles of commercial lithium-ion cells

AU - Osswald, Patrick J.

AU - Rosario, Manuel del

AU - Garche, Jürgen

AU - Jossen, Andreas

AU - Hoster, Harry

PY - 2015/9/20

Y1 - 2015/9/20

N2 - We report on an effective approach to speed up the measurement of thermodynamic characterization curves (entropy of reaction ΔrS(x)) of rechargeable batteries, in particular commercial 18,650 lithium ion cells. We propose and demonstrate a measurement and data processing protocol that reduces the time required to record entropy profiles from time scales of weeks to time scales of hours - without loss in accuracy. For time consuming studies such as investigations on ageing of battery cells, entropy profile measurements thus become as feasible as conventional electrochemical characterisation techniques like dV/dQ or cyclic voltammetry. We demonstrate this at the examples of two ageing protocols applied to a commercial high power and a commercial high energy cell, respectively: (i) accelerated calendric aging by storing cells at 100% state of charge at 60 °C and (ii) continuous cycling with a 1 C current at 25 °C.

AB - We report on an effective approach to speed up the measurement of thermodynamic characterization curves (entropy of reaction ΔrS(x)) of rechargeable batteries, in particular commercial 18,650 lithium ion cells. We propose and demonstrate a measurement and data processing protocol that reduces the time required to record entropy profiles from time scales of weeks to time scales of hours - without loss in accuracy. For time consuming studies such as investigations on ageing of battery cells, entropy profile measurements thus become as feasible as conventional electrochemical characterisation techniques like dV/dQ or cyclic voltammetry. We demonstrate this at the examples of two ageing protocols applied to a commercial high power and a commercial high energy cell, respectively: (i) accelerated calendric aging by storing cells at 100% state of charge at 60 °C and (ii) continuous cycling with a 1 C current at 25 °C.

KW - lithium ion battery

KW - thermodynamics

KW - entropy

KW - 18650 cell

KW - battery ageing

U2 - 10.1016/j.electacta.2015.01.191

DO - 10.1016/j.electacta.2015.01.191

M3 - Journal article

VL - 177

SP - 270

EP - 276

JO - Electrochimica Acta

JF - Electrochimica Acta

ER -