Impact of Micro-cycles on the Lifetime of Lithium-ion Batteries – EIS Analysis

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21230%2F24%3A00376166" target="_blank" >RIV/68407700:21230/24:00376166 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/MELECON56669.2024.10608669" target="_blank" >https://doi.org/10.1109/MELECON56669.2024.10608669</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/MELECON56669.2024.10608669" target="_blank" >10.1109/MELECON56669.2024.10608669</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Impact of Micro-cycles on the Lifetime of Lithium-ion Batteries – EIS Analysis

Popis výsledku v původním jazyce

Experimental studies of lithium-ion batteries are very often based only on deep charge and discharge cycles. However, these test profiles do not fully reflect the actual operation of the battery in an electric vehicle or in stationary applications, where the battery is not only loaded during the main charging and discharging profiles, but it is also stressed by the current throughput caused by renewable power fluctuations or by auxiliary services. These cycles, which are superimposed to the main charge and discharge processes and have a depth of discharge not exceeding 2%, are called micro-cycles. Although there are several simulation studies that attempt to capture this issue, there is still no comprehensive experimental study that has the phenomena that occur during micro-cycling. This paper presents an experimental analysis of micro-cycles, providing a detailed view of the different processes taking place in the battery during aging, by means of a detailed analysis of the results from electrochemical impedance spectroscopy (EIS). By studying the single electrochemical processes in detail, this paper explains the benefits of micro-cycling in terms of extending the lifetime of the battery.

Název v anglickém jazyce

Impact of Micro-cycles on the Lifetime of Lithium-ion Batteries – EIS Analysis

Popis výsledku anglicky

Experimental studies of lithium-ion batteries are very often based only on deep charge and discharge cycles. However, these test profiles do not fully reflect the actual operation of the battery in an electric vehicle or in stationary applications, where the battery is not only loaded during the main charging and discharging profiles, but it is also stressed by the current throughput caused by renewable power fluctuations or by auxiliary services. These cycles, which are superimposed to the main charge and discharge processes and have a depth of discharge not exceeding 2%, are called micro-cycles. Although there are several simulation studies that attempt to capture this issue, there is still no comprehensive experimental study that has the phenomena that occur during micro-cycling. This paper presents an experimental analysis of micro-cycles, providing a detailed view of the different processes taking place in the battery during aging, by means of a detailed analysis of the results from electrochemical impedance spectroscopy (EIS). By studying the single electrochemical processes in detail, this paper explains the benefits of micro-cycling in terms of extending the lifetime of the battery.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/EH22_008%2F0004617" target="_blank" >EH22_008/0004617: Konverze a skladování energie</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

2024 IEEE 22nd Mediterranean Electrotechnical Conference (MELECON)

ISBN

979-8-3503-8702-5

ISSN

2158-8481

e-ISSN

2158-8481

Počet stran výsledku

5

Strana od-do

402-406

Název nakladatele

IEEE Instrumentation & Measurement Society IEEE Portuguese Section

Místo vydání

Algarve

Místo konání akce

Porto

Datum konání akce

25. 6. 2024

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

001291230100070