In Situ Determination of the Liquid/Solid Interface Thickness and Composition for the Li Ion Cathode LiMn1.5Ni0.5O4

2014 ◽  
Vol 6 (21) ◽  
pp. 18569-18576 ◽  
Author(s):  
James F. Browning ◽  
Loïc Baggetto ◽  
Katherine L. Jungjohann ◽  
Yongqiang Wang ◽  
Wyatt E. Tenhaeff ◽  
...  
Keyword(s):  
Interface Thickness ◽  
Solid Interface ◽  
Li Ion

In-situ determination of onset lithium plating for safe Li-ion batteries

2021 ◽  
Author(s):  
Lei Xu ◽  
Yi Yang ◽  
Ye Xiao ◽  
Wen-Long Cai ◽  
Yu-Xing Yao ◽  
...  
Keyword(s):  
Li Ion Batteries ◽  
Li Ion

scholarly journals In situ analysis of LiFePO4 batteries: Signal extraction by multivariate analysis

2010 ◽  
Vol 25 (2) ◽  
pp. 143-148 ◽  
Author(s):  
Mark A. Rodriguez ◽  
Mark H. Van Benthem ◽  
David Ingersoll ◽  
Sven C. Vogel ◽  
Helmut M. Reiche
Keyword(s):  
Multivariate Analysis ◽  
Neutron Diffraction ◽  
Electrochemical Reaction ◽  
Graphite Phase ◽  
Data Set ◽  
Reaction Behavior ◽  
Electrochemical Cycling ◽  
Li Ion

The electrochemical reaction behavior of a commercial Li-ion battery (LiFePO4-based cathode, graphite-based anode) has been measured via in situ neutron diffraction. A multivariate analysis was successfully applied to the neutron diffraction data set facilitating in the determination of Li bearing phases participating in the electrochemical reaction in both the anode and cathode as a function of state-of-charge (SOC). The analysis resulted in quantified phase fraction values for LiFePO4 and FePO4 cathode compounds as well as the identification of staging behavior of Li6, Li12, Li24, and graphite phases in the anode. An additional Li-graphite phase has also been tentatively identified during electrochemical cycling as LiC48 at conditions of ∼5% to 15% SOC.

Determination of the Lamb-Mössbauer factors of LiFePO4 and FePO4 for electrochemical in situ and operando measurements in Li-ion batteries

2010 ◽  
Vol 183 (1) ◽  
pp. 218-222 ◽  
Author(s):  
L. Aldon ◽  
A. Perea ◽  
M. Womes ◽  
C.M. Ionica-Bousquet ◽  
J.-C. Jumas
Keyword(s):  
Li Ion Batteries ◽  
Li Ion

scholarly journals Cover Feature: A New Technique for In Situ Determination of the Active Surface Area Changes of Li–Ion Battery Electrodes (Batteries & Supercaps 10/2020)

2020 ◽  
Vol 3 (10) ◽  
pp. 962-962
Author(s):  
Maciej Ratynski ◽  
Bartosz Hamankiewicz ◽  
Dominika A. Buchberger ◽  
Maciej Boczar ◽  
Michał Krajewski ◽  
...  
Keyword(s):  
Surface Area ◽  
Active Surface ◽  
New Technique ◽  
Active Surface Area ◽  
Li Ion Battery ◽  
Li Ion ◽  
A New Technique

A New Technique for In Situ Determination of the Active Surface Area Changes of Li–Ion Battery Electrodes

2020 ◽  
Vol 3 (10) ◽  
pp. 1028-1039 ◽  
Author(s):  
Maciej Ratynski ◽  
Bartosz Hamankiewicz ◽  
Dominika A. Buchberger ◽  
Maciej Boczar ◽  
Michał Krajewski ◽  
...  
Keyword(s):  
Surface Area ◽  
Active Surface ◽  
New Technique ◽  
Active Surface Area ◽  
Li Ion Battery ◽  
Li Ion ◽  
A New Technique

INDIREKTE PAPIERCHROMATOGRAPHISCHE METHODE ZUR BESTIMMUNG DER HARNOESTROGENE

1961 ◽  
Vol 38 (4) ◽  
pp. 545-562 ◽  
Author(s):  
L. Kecskés ◽  
F. Mutschler ◽  
I. Glós ◽  
E. Thán ◽  
I. Farkas ◽  
...  
Keyword(s):  
Pregnant Women ◽  
Granulosa Cell ◽  
Iron Content ◽  
List Type ◽  
Granulosa Cell Tumour ◽  
Hydrolysis Of ◽  
Phenol Fraction ◽  
Qualitative Determination

ABSTRACT 1. An indirect paperchromatographic method is described for separating urinary oestrogens; this consists of the following steps: acidic hydrolysis, extraction with ether, dissociation of phenol-fractions with partition between the solvents. Previous purification of phenol fraction with the aid of paperchromatography. The elution of oestrogen containing fractions is followed by acetylation. Oestrogen acetate is isolated by re-chromatography. The chromatogram was developed after hydrolysis of the oestrogens 'in situ' on the paper. The quantity of oestrogens was determined indirectly, by means of an iron-reaction, after the elution of the iron content of the oestrogen spot, which was developed by the Jellinek-reaction. 2. The method described above is satisfactory for determining urinary oestrogen, 17β-oestradiol and oestriol, but could include 16-epioestriol and other oestrogenic metabolites. 3. The sensitivity of the method is 1.3–1.6 μg/24 hours. 4. The quantitative and qualitative determination of urinary oestrogens with the above mentioned method was performed in 50 pregnant and 9 non pregnant women, and also in 2 patients with granulosa cell tumour.

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