Suppressing of Irreversible Capacity in Lithium-ion Batteries

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F14%3APU105354" target="_blank" >RIV/00216305:26220/14:PU105354 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.4152/pea.201306297" target="_blank" >http://dx.doi.org/10.4152/pea.201306297</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.4152/pea.201306297" target="_blank" >10.4152/pea.201306297</a>

Result language

angličtina

Original language name

Suppressing of Irreversible Capacity in Lithium-ion Batteries

Original language description

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.

Czech name

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Czech description

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Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

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OECD FORD branch

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project

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Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2014

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Portugaliae Electrochimica Acta

ISSN

0872-1904

e-ISSN

1647-1571

Volume of the periodical

31

Issue of the periodical within the volume

6

Country of publishing house

PT - PORTUGAL

Number of pages

10

Pages from-to

297-306

UT code for WoS article

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EID of the result in the Scopus database

2-s2.0-84896851832