Vaš brskalnik ne omogoča JavaScript!
JavaScript je nujen za pravilno delovanje teh spletnih strani. Omogočite JavaScript ali pa uporabite sodobnejši brskalnik.
Nacionalni portal odprte znanosti
Odprta znanost
DiKUL
slv
|
eng
Iskanje
Brskanje
Novo v RUL
Kaj je RUL
V številkah
Pomoč
Prijava
Enhanced performance of lithium metal batteries via cyclic fluorinated ether based electrolytes
ID
Ishfaq, Hafiz Ahmad
(
Avtor
),
ID
Cruz Cardona, Carolina
(
Avtor
),
ID
Tchernychova, Elena
(
Avtor
),
ID
Johansson, Patrik
(
Avtor
),
ID
Dominko, Robert
(
Avtor
),
ID
Drvarič Talian, Sara
(
Avtor
)
PDF - Predstavitvena datoteka,
prenos
(6,89 MB)
MD5: 19AF085482AFF17F20C8D414C731A246
URL - Izvorni URL, za dostop obiščite
https://www.sciencedirect.com/science/article/pii/S2405829724002022
Galerija slik
Izvleček
To address the challenges associated with applying high-voltage cathodes in lithium metal batteries (LMBs) there is a need for new electrolytes enabling stable interphases at both electrodes. Here we attack this by using a dioxolane-derived cyclic fluorinated ether, 2,2-bis(trifluoromethyl)-1,3-dioxolane (BTFD), as a fluorinated diluent to a 1,2-dimethoxyethane (DME) based electrolyte. The cells using the resulting BTFD-based electrolytes exhibit higher Coulombic efficiencies for lithium stripping and plating as compared to those using the non-fluorinated ether-based electrolyte. This originates from the reduced formation of ‘dead Li’ at the anode, as shown by using electrochemical impedance spectroscopy (EIS). In practice, the BTFD-based electrolytes are shown to improve the performance of Li||NMC cells, which is due to the formation of a predominantly inorganic cathode electrolyte interphase (CEI) that suppresses the cathode degradation during cycling. We used X-ray photoelectron spectroscopy (XPS) and scanning transmission electron microscopy (STEM) to characterize the CEIs’ overall composition and structure. To obtain more details on the CEI speciation, Raman and nuclear magnetic resonance (NMR) spectroscopies were employed, assisted by molecular level computations. Overall, we demonstrate how the very design of the electrolyte composition influences the performance of LMBs.
Jezik:
Angleški jezik
Ključne besede:
lithium metal batteries
,
high-voltage cathode
,
fluorinated electrolyte
,
locally highly concentrated electrolyte
,
solvation structure
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FKKT - Fakulteta za kemijo in kemijsko tehnologijo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2024
Št. strani:
10 str.
Številčenje:
Vol. 69, art. 103375
PID:
20.500.12556/RUL-156288
UDK:
544.5/.6
ISSN pri članku:
2405-8289
DOI:
10.1016/j.ensm.2024.103375
COBISS.SI-ID:
193555203
Datum objave v RUL:
17.05.2024
Število ogledov:
521
Število prenosov:
54
Metapodatki:
Citiraj gradivo
Navadno besedilo
BibTeX
EndNote XML
EndNote/Refer
RIS
ABNT
ACM Ref
AMA
APA
Chicago 17th Author-Date
Harvard
IEEE
ISO 690
MLA
Vancouver
:
Kopiraj citat
Objavi na:
Gradivo je del revije
Naslov:
Energy storage materials
Založnik:
Elsevier
ISSN:
2405-8289
COBISS.SI-ID:
87651587
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
elektrokemija
,
akumulatorji
,
baterije
,
elektroliti
,
fluoridi
Projekti
Financer:
EC - European Commission
Program financ.:
H2020
Številka projekta:
945357
Naslov:
Doctorate Programme on Emerging Battery Storage Technologies INspiring Young scientists
Akronim:
DESTINY
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0423
Naslov:
Sodobni akumulatorji kot podpora zelenemu prehodu in elektromobilnosti
Financer:
Drugi - Drug financer ali več financerjev
Program financ.:
VINNOVA, Batteries Sweden (BASE)
Številka projekta:
2019-00064
Financer:
Drugi - Drug financer ali več financerjev
Program financ.:
Swedish Research Council (VR), Distinguished Professor
Številka projekta:
2021-00613
Naslov:
Next Generation Batteries
Podobna dela
Podobna dela v RUL:
Podobna dela v drugih slovenskih zbirkah:
Nazaj