Publication result detail

SOURCES OF DEGRADATION IN LI-S CELLS

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

Original Title

SOURCES OF DEGRADATION IN LI-S CELLS

English Title

SOURCES OF DEGRADATION IN LI-S CELLS

Type

Paper in proceedings (conference paper)

Original Abstract

Lithium-sulfur batteries have attracted the focus of scientists for more than four decades [1-4]. This type of battery represents a promising system of high theoretical capacity, energy density, low cost and the non-toxicity of sulfur. Yet many challenges facing the Li-S technology exist, either with the materials or with the systems, such as a low utilization of sulfur, poor cycle life, high self-discharge rates and capacity fading [1], [3-5]. The degradation mechanisms in Li-S batteries, that are responsible for low sulfur utilization and capacity fading, are still unclear [3,6,7], since some mechanisms may lead to reversible or irreversible degradation [6]. Dominant sources of degradation are determined through Coulombic efficiency and energy efficiency dependences on the number of cycles and from the temperature evolution within the cell cycling.

English abstract

Lithium-sulfur batteries have attracted the focus of scientists for more than four decades [1-4]. This type of battery represents a promising system of high theoretical capacity, energy density, low cost and the non-toxicity of sulfur. Yet many challenges facing the Li-S technology exist, either with the materials or with the systems, such as a low utilization of sulfur, poor cycle life, high self-discharge rates and capacity fading [1], [3-5]. The degradation mechanisms in Li-S batteries, that are responsible for low sulfur utilization and capacity fading, are still unclear [3,6,7], since some mechanisms may lead to reversible or irreversible degradation [6]. Dominant sources of degradation are determined through Coulombic efficiency and energy efficiency dependences on the number of cycles and from the temperature evolution within the cell cycling.

Keywords

Lithium-sulfur, lithium, sulfur, degradation, oxis

Key words in English

Lithium-sulfur, lithium, sulfur, degradation, oxis

Authors

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

RIV year

2019

Released

16.05.2018

ISBN

978-80-02-02786-7

Book

39. Nekonvenční zdroje elektrické energie

Pages from

95

Pages to

97

Pages count

3

BibTex

@inproceedings{BUT150622,
  author="Vlasta {Sedláková} and Josef {Šikula} and Petr {Sedlák} and Ondřej {Čech}",
  title="SOURCES OF DEGRADATION IN LI-S CELLS",
  booktitle="39. Nekonvenční zdroje elektrické energie",
  year="2018",
  pages="95--97",
  isbn="978-80-02-02786-7"
}