Operando characterization of batteries using x-ray absorption spectroscopy

advances at the beamline XAFS at synchrotron Elettra

Giuliana Aquilanti (Avtor), Marco Giorgetti (Avtor), Robert Dominko (Avtor), Lorenzo Stievano (Avtor), Iztok Arčon (Avtor), Nicola Novello (Avtor), Luca Olivi (Avtor)

Povzetek

X-ray absorption spectroscopy is a synchrotron radiation based technique that is able to provide information on both local structure and electronic properties in a chemically selective manner. It can be used to characterize the dynamic processes that govern the electrochemical energy storage in batteries, and to shed light on the redox chemistry and changes in structure during galvanostatic cycling to design cathode materials with improved properties. Operando XAS studies have been performed at beamline XAFS at Elettra on different systems. For Li-ion batteries, a multiedge approach revealed the role of the different cathode components during the charge and discharge of the battery. In addition, Li-S batteries for automotive applications were studied. Operando sulfur K-edge XANES and EXAFS analysis was used to characterize the redox chemistry of sulfur, and to relate the electrochemical mechanism to its local structure.

Ključne besede

operando studies;x-ray absorption spectroscopy;Li-ion batteries;Li-S batteries;

Podatki

Jezik:	Angleški jezik
Leto izida:	2017
Tipologija:	1.01 - Izvirni znanstveni članek
Organizacija:	UNG - Univerza v Novi Gorici
UDK:	546
COBISS:	4706299
ISSN:	0022-3727
Št. ogledov:	5428
Št. prenosov:	0
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

URN:	URN:SI:UNG
Vrsta dela (COBISS):	Delo ni kategorizirano
Strani:	str. 1-12
Letnik:	ǂVol. ǂ50
Zvezek:	ǂno. ǂ7
Čas izdaje:	2017
DOI:	10.1088/1361-6463/aa519a
ID:	9585659