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

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

<a href="/cs/project/LO1210" target="_blank" >LO1210: Energie v podmínkách udržitelného rozvoje (EN-PUR)</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Journal of Energy Storage

ISSN

2352-152X

e-ISSN

—

Svazek periodika

14

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

383-390

Kód UT WoS článku

000417188500005

EID výsledku v databázi Scopus

2-s2.0-85017408827