In-Situ X-Ray Diffraction Studies of Abused LiMn2O4–LiNi1/3Co1/3Mn1/3O2 Composite Cathode Materials in Li-Ion Batteries

2013 ◽  
Keyword(s):  
Cathode Materials ◽  
Composite Cathode ◽  
Li Ion Batteries ◽  
X Ray Diffraction ◽  
X Ray ◽  
Li Ion

Using In Situ High-Energy X-ray Diffraction to Quantify Electrode Behavior of Li-Ion Batteries from Extreme Fast Charging

2021 ◽  
Author(s):  
Partha P. Paul ◽  
Chuntian Cao ◽  
Vivek Thampy ◽  
Hans-Georg Steinrück ◽  
Tanvir R. Tanim ◽  
...  
Keyword(s):  
High Energy ◽  
Li Ion Batteries ◽  
X Ray Diffraction ◽  
X Ray ◽  
Fast Charging ◽  
Li Ion

Phase Transformation Behavior and Stability of LiNiO 2 Cathode Material for Li‐Ion Batteries Obtained from In Situ Gas Analysis and Operando X‐Ray Diffraction

ChemSusChem ◽  
2019 ◽  
Vol 12 (10) ◽  
pp. 2240-2250 ◽  
Author(s):  
Lea de Biasi ◽  
Alexander Schiele ◽  
Maria Roca‐Ayats ◽  
Grecia Garcia ◽  
Torsten Brezesinski ◽  
...  
Keyword(s):  
Phase Transformation ◽  
Cathode Material ◽  
Gas Analysis ◽  
Li Ion Batteries ◽  
X Ray Diffraction ◽  
Transformation Behavior ◽  
X Ray ◽  
Phase Transformation Behavior ◽  
Li Ion

Structural complexity of layered-spinel composite electrodes for Li-ion batteries

2010 ◽  
Vol 25 (8) ◽  
pp. 1601-1616 ◽  
Author(s):  
Jordi Cabana ◽  
Christopher S. Johnson ◽  
Xiao-Qing Yang ◽  
Kyung-Yoon Chung ◽  
Won-Sub Yoon ◽  
...  
Keyword(s):  
Structural Complexity ◽  
Composite Electrodes ◽  
Li Ion Batteries ◽  
X Ray Diffraction ◽  
X Ray ◽  
Different Temperatures ◽  
Li Ion ◽  
Excess Phase ◽  
X Ray Absorption

The complexity of layered-spinel yLi2MnO3·(1 – y)Li1+xMn2–xO4 (Li:Mn = 1.2:1; 0 ≤ x ≤ 0.33; y ≥ 0.45) composites synthesized at different temperatures has been investigated by a combination of x-ray diffraction (XRD), x-ray absorption spectroscopy (XAS), and nuclear magnetic resonance (NMR). While the layered component does not change substantially between samples, an evolution of the spinel component from a high to a low lithium excess phase has been traced with temperature by comparing with data for pure Li1+xMn2–xO4. The changes that occur to the structure of the spinel component and to the average oxidation state of the manganese ions within the composite structure as lithium is electrochemically removed in a battery have been monitored using these techniques, in some cases in situ. Our 6Li NMR results constitute the first direct observation of lithium removal from Li2MnO3 and the formation of LiMnO2 upon lithium reinsertion.

Gold model anodes for Li-ion batteries: Single crystalline systems studied by in situ X-ray diffraction

2008 ◽  
Vol 53 (21) ◽  
pp. 6064-6069 ◽  
Author(s):  
F.U. Renner ◽  
H. Kageyama ◽  
Z. Siroma ◽  
M. Shikano ◽  
S. Schöder ◽  
...  
Keyword(s):  
Li Ion Batteries ◽  
X Ray Diffraction ◽  
Single Crystalline ◽  
X Ray ◽  
Li Ion

The Effect of Calcination Time on Crystallite Size of LiMn1.8Ni0.2O4 Cathode Materials

2020 ◽  
Vol 307 ◽  
pp. 136-140
Author(s):  
Michelle Matius ◽  
Norlida Kamarulzaman ◽  
Mohd Sufri Mastuli ◽  
Nor Syamilah Syamimi Mohd Abdillih ◽  
Kelimah Elong
Keyword(s):  
Crystallite Size ◽  
Cathode Materials ◽  
Single Phase ◽  
Small Mass ◽  
Li Ion Batteries ◽  
X Ray Diffraction ◽  
Calcination Time ◽  
X Ray ◽  
Li Ion ◽  
Materials Used

Spinel LiMn2O4 is one of the promising cathode materials used in commercial Li-ion batteries. In this study, Ni was partially substituted in order to give the material LiMn1.8Ni0.2O4, which was successfully synthesized using a self-propagating combustion (SPC) method. Results from Simultaneous Thermogravimetric Analysis (STA) show the small mass loss about 4.6%. The precursor then was calcined at temperature of 800 °C for 24 h, 48 h and 72 h. X-Ray Diffraction (XRD) confirms that the final products are pure and single phase with no impurities present. The morphology and crystallite size of pure samples are examined using Field Emission Scanning Electron Microscope (FESEM). The result shows that all the materials consist of crystalline particles with smooth surface and polyhedral shaped materials.

The Effect of Synthesis Temperature on Interlayer Mixing in Layered Rock Salt Cathode Materials LiNi0.7Mn0.1Co0.2O2 for Li-Ion Batteries Application

2015 ◽  
Vol 819 ◽  
pp. 155-160 ◽  
Author(s):  
S.P. Soo ◽  
M.S. Idris ◽  
Rozana A.M. Osman ◽  
A. Rahmat
Keyword(s):  
Rock Salt ◽  
Cathode Materials ◽  
Synthesis Temperature ◽  
Li Ion Batteries ◽  
Optimum Temperature ◽  
X Ray Diffraction ◽  
X Ray ◽  
Layered Rock ◽  
Suitable Temperature ◽  
Li Ion

The interlayer mixing of layered rock salt cathode materials LiNi0.7Mn0.1Co0.2O2 that prepared by mixed hydroxide method at various temperatures (750-950°C) has been studied. X-ray Diffraction (XRD) was used to determine a suitable temperature range to obtain the fully reacted sample. Phase of pure sample was obtained at high temperature above 850°C. The results of XRD show that the LiNi0.7Mn0.1Co0.2O2 samples are iso-structural with α-NaFeO2 with space group of R-3m.The sample that heated at 900°C exhibits a well-ordered and lower cation mixed layered structure than others. Rietveld refinement using XRD data was used to determine the amount of interlayer mixing vary as a function of temperature. Refinements data showed that the interlayer mixing varies depend upon the synthesis temperature and the optimum temperature to prepare LiNi0.7Mn0.1Co0.2O2 with the lowest amount of interlayer mixing was 900°C.

In situ X-ray diffraction studies of mixed LiMn2O4–LiNi1/3Co1/3Mn1/3O2 composite cathode in Li-ion cells during charge–discharge cycling

2009 ◽  
Vol 192 (2) ◽  
pp. 652-659 ◽  
Author(s):  
Kyung-Wan Nam ◽  
Won-Sub Yoon ◽  
Hyunjung Shin ◽  
Kyung Yoon Chung ◽  
Seungdon Choi ◽  
...  
Keyword(s):  
Composite Cathode ◽  
X Ray Diffraction ◽  
X Ray ◽  
Li Ion ◽  
Charge Discharge

Thermal stability of charged LiNi0.5Co0.2Mn0.3O2 cathode for Li-ion batteries investigated by synchrotron based in situ X-ray diffraction

2013 ◽  
Vol 562 ◽  
pp. 219-223 ◽  
Author(s):  
Yong-Hun Cho ◽  
Donghyuk Jang ◽  
Jeongbae Yoon ◽  
Hyunchul Kim ◽  
Tae Kyu Ahn ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Li Ion Batteries ◽  
X Ray Diffraction ◽  
X Ray ◽  
Li Ion ◽  
Thermal Stability Of
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