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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
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" }