Initial Stage of the Delithiation of Li1.2-xMn0.4Fe0.4O2 Positive Electrode Material for Lithium-Ion Batteries Studied by Electron Energy-Loss Spectroscopy

2019 ◽  
Vol 11 (29) ◽  
pp. 15-20
Author(s):  
Jun Kikkawa ◽  
Tomoki Akita ◽  
Mitsuharu Tabuchi ◽  
Masahiro Shikano ◽  
Kuniaki Tatsumi ◽  
...  
Keyword(s):  
Energy Loss ◽  
Lithium Ion Batteries ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Electrode Material ◽  
Lithium Ion ◽  
Positive Electrode ◽  
Initial Stage ◽  
Positive Electrode Material ◽  
Electron Energy Loss

γ-Fe2O3@CNTs Anode Materials for Lithium Ion Batteries Investigated by Electron Energy Loss Spectroscopy

2017 ◽  
Vol 29 (8) ◽  
pp. 3499-3506 ◽  
Author(s):  
Xiaoxin Lv ◽  
Jiujun Deng ◽  
Biqiong Wang ◽  
Jun Zhong ◽  
Tsun-Kong Sham ◽  
...  
Keyword(s):  
Energy Loss ◽  
Lithium Ion Batteries ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Anode Materials ◽  
Lithium Ion ◽  
Electron Energy Loss

Characterization of Lithium Ion Battery Materials with Valence Electron Energy-Loss Spectroscopy

2018 ◽  
Vol 24 (3) ◽  
pp. 214-220 ◽  
Author(s):  
Fernando C. Castro ◽  
Vinayak P. Dravid
Keyword(s):  
Energy Loss ◽  
Electron Energy ◽  
Electron Energy Loss Spectroscopy ◽  
Mixed Oxides ◽  
Lithium Ion ◽  
Atomic Scale ◽  
Spectral Processing ◽  
Thick Sample ◽  
Battery Materials ◽  
Electron Energy Loss

AbstractCutting-edge research on materials for lithium ion batteries regularly focuses on nanoscale and atomic-scale phenomena. Electron energy-loss spectroscopy (EELS) is one of the most powerful ways of characterizing composition and aspects of the electronic structure of battery materials, particularly lithium and the transition metal mixed oxides found in the electrodes. However, the characteristic EELS signal from battery materials is challenging to analyze when there is strong overlap of spectral features, poor signal-to-background ratios, or thicker and uneven sample areas. A potential alternative or complementary approach comes from utilizing the valence EELS features (<20 eV loss) of battery materials. For example, the valence EELS features in LiCoO2 maintain higher jump ratios than the Li–K edge, most notably when spectra are collected with minimal acquisition times or from thick sample regions. EELS maps of these valence features give comparable results to the Li–K edge EELS maps of LiCoO2. With some spectral processing, the valence EELS maps more accurately highlight the morphology and distribution of LiCoO2 than the Li–K edge maps, especially in thicker sample regions. This approach is beneficial for cases where sample thickness or beam sensitivity limit EELS analysis, and could be used to minimize electron dosage and sample damage or contamination.

Role of Alumina Coating on Li−Ni−Co−Mn−O Particles as Positive Electrode Material for Lithium-Ion Batteries

2005 ◽  
Vol 17 (14) ◽  
pp. 3695-3704 ◽  
Author(s):  
Seung-Taek Myung ◽  
Kentarou Izumi ◽  
Shinichi Komaba ◽  
Yang-Kook Sun ◽  
Hitoshi Yashiro ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Electrode Material ◽  
Lithium Ion ◽  
Positive Electrode ◽  
Alumina Coating ◽  
Positive Electrode Material
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