Irreversible capacity and rate-capability properties of lithium-ion negative electrode based on graphite

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26220%2F17%3APU124575" target="_blank" >RIV/00216305:26220/17:PU124575 - isvavai.cz</a>
Result on the web
<a href="https://www.journals.elsevier.com/journal-of-energy-storage" target="_blank" >https://www.journals.elsevier.com/journal-of-energy-storage</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.est.2017.03.017" target="_blank" >10.1016/j.est.2017.03.017</a>

Result language
angličtina
Original language name
Irreversible capacity and rate-capability properties of lithium-ion negative electrode based on graphite
Original language description
In this paper, the results of experimental work with doped graphite are presented and described. The graphite material plays major role among negative electrode materials used in lithium-ion batteries. Graphite behavior as an active material of negative electrode in lithium-ion cell was widely investigated and published. The one key characteristic property of graphite is the irreversible capacity losses. The irreversible capacity represents losses which occur in graphite negative electrode within initial charge-discharge cycles (process called cell formatting). This phenomenon is connected with lower negative electrode potential vs. lithium (Li/Li+) and the growth of Solid Electrolyte Interphase (SEI) layer. The SEI layer is important and necessary for proper operation of lithium-ion cell, on the other hand growth of SEI layer limits and lowering theoretical capacity of lithium-ion cell up to 40 %. As a possible way, how to balance these losses is to dope graphite material by lithium atoms before its using in lithium-ion cell. Suppressing of irreversible capacity losses at initial charge-discharge cycles is the main aim of our investigation.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Project
<a href="/en/project/LO1210" target="_blank" >LO1210: Energy for Sustainable Development</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2017
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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