Detail publikačního výsledku

Cycle life and degradation sources in Li-S cells

SEDLÁKOVÁ, V.; ŠIKULA, J.; SEDLÁK, P.; ČECH, O.

Originální název

Cycle life and degradation sources in Li-S cells

Anglický název

Cycle life and degradation sources in Li-S cells

Druh

Stať ve sborníku v databázi WoS či Scopus

Originální abstrakt

The degradation of Lithium-Sulphur cell structure within the charge-discharge cycling limits the lifetime of these devices. The sources of degradation are determined as (i) the change of electrode effective area, (ii) the decrease of electrolyte conductivity and (iii) the degradation of the potential barriers existing on the electrode/electrolyte interface. The mechanisms responsible for the Li-S structure degradation were indicated as the decrease of Sulphur quantity in the vicinity of carbon electrode available for the electrochemical reactions, and the thermal degradation of the electrolyte resulting from the temperature increase due to the cell cycling. Cycle life is influenced by the end-of-charge voltage (EOCV), end-of-discharge voltage (EODV) as well as by the charge-discharge current rate. The degradation of Li-S cell is accelerated by including the relaxation between the cell charge and discharge, i.e. keeping the cell in the charged state.

Anglický abstrakt

The degradation of Lithium-Sulphur cell structure within the charge-discharge cycling limits the lifetime of these devices. The sources of degradation are determined as (i) the change of electrode effective area, (ii) the decrease of electrolyte conductivity and (iii) the degradation of the potential barriers existing on the electrode/electrolyte interface. The mechanisms responsible for the Li-S structure degradation were indicated as the decrease of Sulphur quantity in the vicinity of carbon electrode available for the electrochemical reactions, and the thermal degradation of the electrolyte resulting from the temperature increase due to the cell cycling. Cycle life is influenced by the end-of-charge voltage (EOCV), end-of-discharge voltage (EODV) as well as by the charge-discharge current rate. The degradation of Li-S cell is accelerated by including the relaxation between the cell charge and discharge, i.e. keeping the cell in the charged state.

Klíčová slova

Lithium-Sulphur cell; degradation; energy storage

Klíčová slova v angličtině

Lithium-Sulphur cell; degradation; energy storage

Autoři

SEDLÁKOVÁ, V.; ŠIKULA, J.; SEDLÁK, P.; ČECH, O.

Rok RIV

2020

Vydáno

03.09.2019

Nakladatel

International Microelectronics and Packaging Society Poland Chapter

Místo

Kraków, Poland

ISBN

978-83-932464-3-4

Kniha

Technical Digest of 13th Conference „Electron Technology” ELTE and 43rd International Microelectronics and Packaging IMAPS Poland Conference

Strany od

83

Strany do

84

Strany počet

2

BibTex

@inproceedings{BUT159346,
  author="Vlasta {Sedláková} and Josef {Šikula} and Petr {Sedlák} and Ondřej {Čech}",
  title="Cycle life and degradation sources in Li-S cells",
  booktitle="Technical Digest of 13th Conference „Electron Technology” ELTE and 43rd International Microelectronics and Packaging IMAPS Poland Conference",
  year="2019",
  pages="83--84",
  publisher="International Microelectronics and Packaging Society Poland Chapter",
  address="Kraków, Poland",
  isbn="978-83-932464-3-4"
}