Nanosized Effect on Electronic/Local Structures and Specific Lithium-Ion Insertion Property in TiO2–B Nanowires Analyzed by X-ray Absorption Spectroscopy

2011 ◽  
Vol 23 (16) ◽  
pp. 3636-3644 ◽  
Author(s):  
Toyoki Okumura ◽  
Tomokazu Fukutsuka ◽  
Asuki Yanagihara ◽  
Yuki Orikasa ◽  
Hajime Arai ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Lithium Ion ◽  
X Ray ◽  
Local Structures ◽  
X Ray Absorption ◽  
Ion Insertion

Electronic and local structural changes with lithium-ion insertion in TiO2-B: X-ray absorption spectroscopy study

2011 ◽  
Vol 21 (39) ◽  
pp. 15369 ◽  
Author(s):  
Toyoki Okumura ◽  
Tomokazu Fukutsuka ◽  
Asuki Yanagihara ◽  
Yuki Orikasa ◽  
Hajime Arai ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Structural Changes ◽  
Lithium Ion ◽  
Spectroscopy Study ◽  
X Ray ◽  
X Ray Absorption ◽  
Ion Insertion

Effects of Lattice Defects on Cathode Properties of LiMn2O4 Synthesized at Low Temperatures for Lithium Ion Secondary Battery

2008 ◽  
Vol 388 ◽  
pp. 41-44 ◽  
Author(s):  
Hiroyuki Kaiya ◽  
Shinya Suzuki ◽  
Masaru Miyayama
Keyword(s):  
Absorption Spectroscopy ◽  
Low Temperatures ◽  
Heating Temperature ◽  
Sol Gel ◽  
Lithium Ion ◽  
Lattice Defects ◽  
X Ray ◽  
Secondary Battery ◽  
Cation Mixing ◽  
X Ray Absorption

Effects of lattice defects on cathode properties of LiMn2O4 synthesized at low temperatures were investigated. LiMn2O4 powders were synthesized by a sol-gel method. The specific capacities of LiMn2O4 decreased from 134 to 81 mAh g-1 with decreasing heating temperature from 750 to 200°C. X-ray absorption spectroscopy showed that a large amount of lattice defects such as cation vacancies existed and cation mixing occurred in LiMn2O4 calcined at low temperatures. It was found that the low specific capacities of LiMn2O4 calcined at low temperatures were attributed to these lattice defects.

Investigation of a porous NiSi 2 /Si composite anode material used for lithium-ion batteries by X-ray absorption spectroscopy

2016 ◽  
Vol 324 ◽  
pp. 830-835 ◽  
Author(s):  
Dong Zhou ◽  
Haiping Jia ◽  
Jatinkumar Rana ◽  
Tobias Placke ◽  
Richard Klöpsch ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Anode Material ◽  
Absorption Spectroscopy ◽  
Lithium Ion ◽  
Composite Anode ◽  
X Ray ◽  
X Ray Absorption

X-ray Absorption Spectroscopy Investigation of the Sub-Nanoscale Strain in Thin-Film Lithium Ion Battery Cathodes

2004 ◽  
Vol 822 ◽  
Author(s):  
Faisal M. Alamgir ◽  
Jason Vansluytman ◽  
Daniel Carter ◽  
Jay Whitacre ◽  
Chi-Chang Kao ◽  
...  
Keyword(s):  
Thin Film ◽  
Absorption Spectroscopy ◽  
Rotational Symmetry ◽  
Lithium Ion ◽  
Local Strain ◽  
Intrinsic Stress ◽  
Structural Defects ◽  
X Ray ◽  
Metal Metal ◽  
X Ray Absorption

AbstractLiCoO2 and LiNiO2, two important cathode materials for Li-ion batteries, were studied in their respective bulk and thin-film form. X-ray absorption spectroscopy (XAS) has been used to probe the local atomic structure and structural defects in the thin-film and bulk cathodes. Results comparing Li(Co,Ni)O2 in the bulk and thin-film forms suggests a correlation between intrinsic stress and local strain in the thin-film. This local strain is manifested by a collapse of the six-fold rotational symmetry within the metal-metal layer of the Li(Co,Ni)O2 system into a two fold one. The relationship between annealing conditions and the resulting local strain in these films is examined.

X-ray absorption spectroscopy study of the local structures of crystalline Zn–In–Sn oxide thin films

2009 ◽  
Vol 106 (11) ◽  
pp. 113524 ◽  
Author(s):  
D. E. Proffit ◽  
D. B. Buchholz ◽  
R. P. H. Chang ◽  
M. J. Bedzyk ◽  
T. O. Mason ◽  
...  
Keyword(s):  
Thin Films ◽  
Absorption Spectroscopy ◽  
Spectroscopy Study ◽  
Oxide Thin Films ◽  
X Ray ◽  
Local Structures ◽  
X Ray Absorption
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