Low frequency noise of electrochemical power sources

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F17%3APU123964" target="_blank" >RIV/00216305:26220/17:PU123964 - isvavai.cz</a>

Výsledek na webu

<a href="http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7985993" target="_blank" >http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7985993</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/ICNF.2017.7985993" target="_blank" >10.1109/ICNF.2017.7985993</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Low frequency noise of electrochemical power sources

Popis výsledku v původním jazyce

Terminal voltage fluctuation of lithium-sulfur cells and nickel–metal-hydride cells was measured in different time intervals since cell charging to full capacity. The power noise spectral density is of 1/f^a type with exponent a varying in the range from 1 to 1.8. The main noise sources in charge storage systems are: i) fluctuation of potential barrier on the electrode-electrolyte interface (its height and width); ii) generation-recombination processes due to the chemical redox reactions, happening in the cell during its discharge. The state of health of each cell influences the noise spectral density shape and the rate of its decline. Further study of described behaviors may lead to development of reliable method for cell quality assessment.

Název v anglickém jazyce

Low frequency noise of electrochemical power sources

Popis výsledku anglicky

Terminal voltage fluctuation of lithium-sulfur cells and nickel–metal-hydride cells was measured in different time intervals since cell charging to full capacity. The power noise spectral density is of 1/f^a type with exponent a varying in the range from 1 to 1.8. The main noise sources in charge storage systems are: i) fluctuation of potential barrier on the electrode-electrolyte interface (its height and width); ii) generation-recombination processes due to the chemical redox reactions, happening in the cell during its discharge. The state of health of each cell influences the noise spectral density shape and the rate of its decline. Further study of described behaviors may lead to development of reliable method for cell quality assessment.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/LQ1601" target="_blank" >LQ1601: CEITEC 2020</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

2017

Kód důvěrnosti údajů

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

Název statě ve sborníku

2017 International Conference on Noise and Fluctuations (ICNF)

ISBN

978-1-5090-2760-6

ISSN

—

e-ISSN

—

Počet stran výsledku

4

Strana od-do

1-4

Název nakladatele

IEEE

Místo vydání

Vilnius, Lithuania

Místo konání akce

Vilnius

Datum konání akce

20. 6. 2017

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

000426915500069