Detail publikačního výsledku

Low frequency noise of electrochemical power sources

KUPAROWITZ, T.; SEDLÁKOVÁ, V.; SEDLÁK, P.; ŠIKULA, J.

Originální název

Low frequency noise of electrochemical power sources

Anglický název

Low frequency noise of electrochemical power sources

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

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.

Anglický abstrakt

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.

Klíčová slova

Low frequency noise, 1/f noise, nickel-metal- hydride battery, lithium-sulfur battery, generation-recombination noise, battery state of health

Klíčová slova v angličtině

Low frequency noise, 1/f noise, nickel-metal- hydride battery, lithium-sulfur battery, generation-recombination noise, battery state of health

Autoři

KUPAROWITZ, T.; SEDLÁKOVÁ, V.; SEDLÁK, P.; ŠIKULA, J.

Rok RIV

2018

Vydáno

19.06.2017

Nakladatel

IEEE

Místo

Vilnius, Lithuania

ISBN

978-1-5090-2760-6

Kniha

2017 International Conference on Noise and Fluctuations (ICNF)

Strany od

1

Strany do

4

Strany počet

4

URL

http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7985993

Plný text v Digitální knihovně

http://hdl.handle.net/

BibTex

@inproceedings{BUT137504,
  author="Tomáš {Kuparowitz} and Vlasta {Sedláková} and Petr {Sedlák} and Josef {Šikula}",
  title="Low frequency noise of electrochemical power sources",
  booktitle="2017 International Conference on Noise and Fluctuations (ICNF)",
  year="2017",
  pages="1--4",
  publisher="IEEE",
  address="Vilnius, Lithuania",
  doi="10.1109/ICNF.2017.7985993",
  isbn="978-1-5090-2760-6",
  url="http://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=7985993"
}