X-ray Photoelectron Spectroscopy and AC Impedance Spectroscopy Studies of Li-La-Zr-O Solid Electrolyte Thin Film/LiCoO2Cathode Interface for All-Solid-State Li Batteries

2017 ◽  
Vol 164 (6) ◽  
pp. A1133-A1139 ◽  
Author(s):  
Mina Zarabian ◽  
Monica Bartolini ◽  
Pedro Pereira-Almao ◽  
Venkataraman Thangadurai
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Impedance Spectroscopy ◽  
Solid Electrolyte ◽  
Photoelectron Spectroscopy ◽  
Ac Impedance ◽  
Ac Impedance Spectroscopy ◽  
X Ray ◽  
Li Batteries ◽  
Spectroscopy Studies

scholarly journals Operando hard X-ray photoelectron spectroscopy of LiCoO2 thin film in an all-solid-state lithium ion battery

2020 ◽  
Vol 118 ◽  
pp. 106790
Author(s):  
Hisao Kiuchi ◽  
Kazuhiro Hikima ◽  
Keisuke Shimizu ◽  
Ryoji Kanno ◽  
Fukunaga Toshiharu ◽  
...  
Keyword(s):  
Thin Film ◽  
Solid State ◽  
Lithium Ion Battery ◽  
Photoelectron Spectroscopy ◽  
Lithium Ion ◽  
X Ray

Ac impedance spectroscopy studies of the solid solution Li2Zr1−xTixO3

1994 ◽  
Vol 73 (3-4) ◽  
pp. 169-173 ◽  
Author(s):  
J CARRILLOLAZO ◽  
P QUINTANA ◽  
E AMANO ◽  
A HUANOSTA
Keyword(s):  
Solid Solution ◽  
Impedance Spectroscopy ◽  
Ac Impedance ◽  
Ac Impedance Spectroscopy ◽  
Spectroscopy Studies

Effect of Sintering on Structural Modification and Phase Transition of Al-Substituted LLZO Electrolytes for Solid State Battery Applications

2021 ◽  
Vol 18 (3) ◽  
Author(s):  
K. Ganesh Kumar ◽  
P. Balaji Bhargav ◽  
C. Balaji ◽  
Ahmed Nafis ◽  
K. Aravinth ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Solid State ◽  
Solid Electrolyte ◽  
Photoelectron Spectroscopy ◽  
Lithium Ion ◽  
Impedance Analysis ◽  
Chemical Compositions ◽  
X Ray ◽  
Reitveld Refinement ◽  
Solid State Battery

Abstract Owing to high lithium ion conductivity and good stability with lithium metal, Li7La3Zr2O12 (LLZO—a solid electrolyte) has emerged as a viable candidate for solid-state battery applications. In the current study, Al-substituted LLZO (Al-LLZO) powder is synthesized using a typical solid-state reaction. The pellets are made with the synthesized powder and are subjected to annealing for different durations and its effect on the structural properties of the Al-LLZO is investigated in detail. Reitveld refinement of the powder X-ray diffraction pattern reveals that the sintered Al-LLZO belong to the cubic system with the Ia-3d space group at room temperature. Morphology and microstructural properties of sintered powder are analyzed using field emission scanning electron microscopy (FESEM) and high-resolution transmission electron microscopy (HRTEM)/selected area electron diffraction (SAED), respectively. The FESEM image of LLZO pellets shows well-structured cubic grains spread evenly over on the surface after sintering. The chemical compositions of the sample are identified using energy dispersive X-ray analysis (EDAX). The surface chemistry of the prepared samples is examined by X-ray photoelectron spectroscopy (XPS), which states that the observed photoelectron signals from O 1s at about 531 eV and Li1s at 54.52 eV correspond to the Li-O bond in Al-LLZO. Raman spectra have been analyzed and the observed Raman peaks appearing at 299 cm−1, 393 cm−1, 492 cm−1, and 514 cm−1 were assigned to Eg, F2g, A1g, and F2g, respectively. Phase transformation from C-LLZO to the pyrochore LZO phase is noticed when the sample is sintered for 12 h at 1100 °C. The impedance analysis is carried out to measure the conductivity of the Al-LLZO pellet and is found to be 0.3 × 10−5 S cm−1, which is suitable for solid electrolyte applications in lithium ion batteries.

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