LiNi(1)(/)(3)Mn(1)(/)(3)Co(1)(/)(3)O(2)with morphology optimized for novel concept of3DLi accumulator

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388955%3A_____%2F20%3A00531781" target="_blank" >RIV/61388955:_____/20:00531781 - isvavai.cz</a>

Výsledek na webu

<a href="http://hdl.handle.net/11104/0310398" target="_blank" >http://hdl.handle.net/11104/0310398</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/er.5630" target="_blank" >10.1002/er.5630</a>

Jazyk výsledku

angličtina

Název v původním jazyce

LiNi(1)(/)(3)Mn(1)(/)(3)Co(1)(/)(3)O(2)with morphology optimized for novel concept of3DLi accumulator

Popis výsledku v původním jazyce

An array of LiNi1/3Mn1/3Co1/3O2(NMC 111) samples with a hollow-sphere morphology enabling the use of binder-free, millimeter-thick electrodes in a battery are prepared by a combination of ball milling, hydrothermal treatment and calcination. Materials are studied by powder X-ray diffraction, nitrogen adsorption measurements, X-ray fluorescence analysis, and scanning electron microscopy. Their electrochemical performance for Li(+)extraction/insertion is tested by cyclic voltammetry and galvanostatic chronopotentiometry on thin-film electrodes. Optimized materials, prepared by mechanical and thermal treatment with surface areas of 7 to 10 m(2)g(-1), provide charge capacity values of 141 to 156 mAh g(-1). The concentration of the crystalline phase in NMC 111 materials with a hollow-sphere morphology is found to be the decisive parameter for their galvanostatic cycling stability. Hollow spheres with well-developed NMC nanocrystals and a low concentration of amorphous phase in the walls, exhibiting excellent cycling stability and charge capacity in thin-film electrodes are incorporated into a NMC/graphite 3D-battery module. This 122 Ah/451 Wh 3D-battery provides 78% of theoretical capacity and 73% of theoretical energy after 10 formatting cycles. Additionally, the battery prototype exhibits stable performance over more than 200 cycles at C/10 rate. A series of analogous 3D Li accumulators, currently assembled and tested in a pilot plant, represent the first step toward large-scale production of novel 3D Li accumulator.

Název v anglickém jazyce

LiNi(1)(/)(3)Mn(1)(/)(3)Co(1)(/)(3)O(2)with morphology optimized for novel concept of3DLi accumulator

Popis výsledku anglicky

An array of LiNi1/3Mn1/3Co1/3O2(NMC 111) samples with a hollow-sphere morphology enabling the use of binder-free, millimeter-thick electrodes in a battery are prepared by a combination of ball milling, hydrothermal treatment and calcination. Materials are studied by powder X-ray diffraction, nitrogen adsorption measurements, X-ray fluorescence analysis, and scanning electron microscopy. Their electrochemical performance for Li(+)extraction/insertion is tested by cyclic voltammetry and galvanostatic chronopotentiometry on thin-film electrodes. Optimized materials, prepared by mechanical and thermal treatment with surface areas of 7 to 10 m(2)g(-1), provide charge capacity values of 141 to 156 mAh g(-1). The concentration of the crystalline phase in NMC 111 materials with a hollow-sphere morphology is found to be the decisive parameter for their galvanostatic cycling stability. Hollow spheres with well-developed NMC nanocrystals and a low concentration of amorphous phase in the walls, exhibiting excellent cycling stability and charge capacity in thin-film electrodes are incorporated into a NMC/graphite 3D-battery module. This 122 Ah/451 Wh 3D-battery provides 78% of theoretical capacity and 73% of theoretical energy after 10 formatting cycles. Additionally, the battery prototype exhibits stable performance over more than 200 cycles at C/10 rate. A series of analogous 3D Li accumulators, currently assembled and tested in a pilot plant, represent the first step toward large-scale production of novel 3D Li accumulator.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10403 - Physical chemistry

Projekt

<a href="/cs/project/FV20471" target="_blank" >FV20471: Výzkum a návrh konstrukce 48V lithiových akumulátorů pro novou generaci automobilů</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2020

Kód důvěrnosti údajů

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

Název periodika

International Journal of Energy Research

ISSN

0363-907X

e-ISSN

—

Svazek periodika

44

Číslo periodika v rámci svazku

JUN 2020

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

9082-9092

Kód UT WoS článku

000542450100001

EID výsledku v databázi Scopus

2-s2.0-85087306250