Magnetism vs. LiFePO4 battery's state of charge: A route to a novel sensor concept

Thomas Gallien; Heinz Krenn; Roland Fischer; Hannes Wegleiter

doi:10.1109/CPEM.2014.6898552

Magnetism vs. LiFePO4 battery's state of charge: A route to a novel sensor concept

Thomas Gallien, Heinz Krenn, Roland Fischer, Hannes Wegleiter

Research output: Conference proceeding/Chapter in Book/Report/ › Conference Paper › peer-review

Abstract

In recent years, LiFePO₄ has become a versatile cathode active material for rechargeable batteries. Unfortunately, the control of the battery's state of charge is not uniquely determined by measuring just the LiFePO₄ battery's open circuit voltage. For this reason, an alternative way of state of charge control is introduced by investigating the battery's magnetic susceptibility. This is motivated by the change of the iron atoms's magnetic state in the LiFePO₄ cathode material during charging and discharging. The magnetic susceptibility of differently oxidized LiFePO₄ samples will be investigated in order to correlate the magnetic sensitivity with the SOC in view of a new sensor concept.

Original language	German (Austria)
Title of host publication	29th Conference on Precision Electromagnetic Measurements (CPEM 2014)
Pages	648-649
Number of pages	2
DOIs	https://doi.org/10.1109/CPEM.2014.6898552
Publication status	Published - 29 Aug 2014
Externally published	Yes
Event	29th Conference on Precision Electromagnetic Measurements (CPEM 2014) - Rio de Janeiro, Brazil Duration: 24 Aug 2014 → 29 Aug 2014

Conference

Conference	29th Conference on Precision Electromagnetic Measurements (CPEM 2014)
Period	24/08/14 → 29/08/14

Access to Document

10.1109/CPEM.2014.6898552

https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6898552

Cite this

@inproceedings{e68814872db246b2aa72a2433503f3f0,

title = "Magnetism vs. LiFePO4 battery's state of charge: A route to a novel sensor concept",

abstract = "In recent years, LiFePO4 has become a versatile cathode active material for rechargeable batteries. Unfortunately, the control of the battery's state of charge is not uniquely determined by measuring just the LiFePO4 battery's open circuit voltage. For this reason, an alternative way of state of charge control is introduced by investigating the battery's magnetic susceptibility. This is motivated by the change of the iron atoms's magnetic state in the LiFePO4 cathode material during charging and discharging. The magnetic susceptibility of differently oxidized LiFePO4 samples will be investigated in order to correlate the magnetic sensitivity with the SOC in view of a new sensor concept.",

keywords = "Magnetic susceptibility, Materials, Oxidation, Batteries, Magnetic hysteresis, System-on-chip, Lithium",

author = "Thomas Gallien and Heinz Krenn and Roland Fischer and Hannes Wegleiter",

year = "2014",

month = aug,

day = "29",

doi = "10.1109/CPEM.2014.6898552",

language = "Deutsch ({\"O}sterreich)",

isbn = "978-1-4799-2478-3",

pages = "648--649",

booktitle = "29th Conference on Precision Electromagnetic Measurements (CPEM 2014)",

note = "29th Conference on Precision Electromagnetic Measurements (CPEM 2014) ; Conference date: 24-08-2014 Through 29-08-2014",

}

TY - GEN

T1 - Magnetism vs. LiFePO4 battery's state of charge: A route to a novel sensor concept

AU - Gallien, Thomas

AU - Krenn, Heinz

AU - Fischer, Roland

AU - Wegleiter, Hannes

PY - 2014/8/29

Y1 - 2014/8/29

N2 - In recent years, LiFePO4 has become a versatile cathode active material for rechargeable batteries. Unfortunately, the control of the battery's state of charge is not uniquely determined by measuring just the LiFePO4 battery's open circuit voltage. For this reason, an alternative way of state of charge control is introduced by investigating the battery's magnetic susceptibility. This is motivated by the change of the iron atoms's magnetic state in the LiFePO4 cathode material during charging and discharging. The magnetic susceptibility of differently oxidized LiFePO4 samples will be investigated in order to correlate the magnetic sensitivity with the SOC in view of a new sensor concept.

AB - In recent years, LiFePO4 has become a versatile cathode active material for rechargeable batteries. Unfortunately, the control of the battery's state of charge is not uniquely determined by measuring just the LiFePO4 battery's open circuit voltage. For this reason, an alternative way of state of charge control is introduced by investigating the battery's magnetic susceptibility. This is motivated by the change of the iron atoms's magnetic state in the LiFePO4 cathode material during charging and discharging. The magnetic susceptibility of differently oxidized LiFePO4 samples will be investigated in order to correlate the magnetic sensitivity with the SOC in view of a new sensor concept.

KW - Magnetic susceptibility

KW - Materials

KW - Oxidation

KW - Batteries

KW - Magnetic hysteresis

KW - System-on-chip

KW - Lithium

UR - https://ieeexplore.ieee.org/document/6898552/

U2 - 10.1109/CPEM.2014.6898552

DO - 10.1109/CPEM.2014.6898552

M3 - Konferenzartikel

SN - 978-1-4799-2478-3

SP - 648

EP - 649

BT - 29th Conference on Precision Electromagnetic Measurements (CPEM 2014)

T2 - 29th Conference on Precision Electromagnetic Measurements (CPEM 2014)

Y2 - 24 August 2014 through 29 August 2014

ER -

Magnetism vs. LiFePO4 battery's state of charge: A route to a novel sensor concept

Abstract

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