Publication detail

Suppressing of Irreversible Capacity in Lithium-ion Batteries

LIBICH, J. VONDRÁK, J. SEDLAŘÍKOVÁ, M. MÁCA, J. FRK, M.

Original Title

Suppressing of Irreversible Capacity in Lithium-ion Batteries

Type

journal article in Scopus

Language

English

Original Abstract

In this research are considered methods, which can lead to enhance capacity of Lithium-ion batteries. The majority of Li-ion batteries which are used in this time has negative electrode make from graphite. On interface between electrolyte and graphite electrode originates the SEI layer (Solid-Electrolyte Interphase), this layer is the cause of irreversible capacity of graphite. This layer is indispensable for appropriate battery function but for creating this layer is consumed almost one-third potential capacity of Li-ion cell. Is already good known that an irreversible capacity of graphite reduces total potential capacity of battery approximately from 15 % to 45 %. Our goal is to reduce capacity losses and thus increase overall capacity o lithium-ion battery. Was designed a concept in which n-butyllithium (C4H9Li) reagent behaves as the source of lithium atoms and graphite acts like acceptor of lithium atoms. Our conception presents n-butyllithium like reduction reagent which is able to reduce graphite material by Li atoms. Lithium atoms are intercalated between graphite sheets (as at charging process), resulting of this process is new lithiated electrode material which can be used for prepare of negative electrode for Li-ion cells.

Keywords

Lithium, graphite, irreversible capacity, lithiation

Authors

LIBICH, J.; VONDRÁK, J.; SEDLAŘÍKOVÁ, M.; MÁCA, J.; FRK, M.

RIV year

2014

Released

11. 3. 2014

Publisher

Portugaliae Electrochimica Acta

Location

Portugal

ISBN

1647-1571

Periodical

Portugaliae Electrochimica Acta

Year of study

31

Number

6

State

Portuguese Republic

Pages from

297

Pages to

306

Pages count

10

BibTex

@article{BUT101910,
  author="Jiří {Libich} and Jiří {Vondrák} and Marie {Sedlaříková} and Josef {Máca} and Martin {Frk}",
  title="Suppressing of Irreversible Capacity in Lithium-ion Batteries",
  journal="Portugaliae
Electrochimica Acta",
  year="2014",
  volume="31",
  number="6",
  pages="297--306",
  doi="10.4152/pea.201306297",
  issn="1647-1571"
}