Potassium-ion intercalation in graphite within a potassium-ion battery examined usingin situX-ray diffraction

2017 ◽  
Vol 32 (S2) ◽  
pp. S43-S48 ◽  
Author(s):  
James C. Pramudita ◽  
Vanessa K. Peterson ◽  
Justin A. Kimpton ◽  
Neeraj Sharma
Keyword(s):  
Negative Electrode ◽  
Lithium Ion ◽  
Potassium Ion ◽  
Electrochemical Cells ◽  
X Ray Diffraction ◽  
X Ray ◽  
Graphite Intercalation ◽  
Ion Intercalation ◽  
Negative Electrode Material

Graphite has been widely used as a negative electrode material in lithium-ion batteries, and recently it has attracted attention for its use in potassium-ion batteries. In this study, the firstin situX-ray diffraction characterisation of a K/graphite electrochemical cell is performed. Various graphite intercalation compounds are found, including the stage three KC36and stage one KC8compounds,along with the disappearance of the graphite during the potassiation process. These results show new insights on the non-equilibrium states of potassium-ion intercalation into graphite in K/graphite electrochemical cells.

Electrochemical lithium ion intercalation in Li0.5Ni0.25TiOPO4 examined by in situ X-ray diffraction

2012 ◽  
Vol 225 ◽  
pp. 547-550 ◽  
Author(s):  
Rickard Eriksson ◽  
Kenza Maher ◽  
Ismael Saadoune ◽  
Mohammed Mansori ◽  
Torbjörn Gustafsson ◽  
...  
Keyword(s):  
Lithium Ion ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ion Intercalation

scholarly journals An operando X-ray diffraction study of chloroaluminate anion-graphite intercalation in aluminum batteries

2018 ◽  
Vol 115 (22) ◽  
pp. 5670-5675 ◽  
Author(s):  
Chun-Jern Pan ◽  
Chunze Yuan ◽  
Guanzhou Zhu ◽  
Qian Zhang ◽  
Chen-Jui Huang ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Room Temperature ◽  
Negative Electrode ◽  
Discharge Voltage ◽  
Battery Life ◽  
X Ray Diffraction ◽  
X Ray ◽  
Stage 4 ◽  
Graphite Intercalation ◽  
Battery Discharge

We investigated rechargeable aluminum (Al) batteries composed of an Al negative electrode, a graphite positive electrode, and an ionic liquid (IL) electrolyte at temperatures down to −40 °C. The reversible battery discharge capacity at low temperatures could be superior to that at room temperature. In situ/operando electrochemical and synchrotron X-ray diffraction experiments combined with theoretical modeling revealed stable AlCl4−/graphite intercalation up to stage 3 at low temperatures, whereas intercalation was reversible up to stage 4 at room temperature (RT). The higher-degree anion/graphite intercalation at low temperatures affords rechargeable Al battery with higher discharge voltage (up to 2.5 V, a record for Al battery) and energy density. A remarkable cycle life of >20,000 cycles at a rate of 6C (10 minutes charge time) was achievable for Al battery operating at low temperatures, corresponding to a >50-year battery life if charged/discharged once daily.

Study of Structural Changes in LiNi0.8Co0.1Mn0.1O2 Cathode Material for Lithium-Ion Batteries by X-Ray Diffraction Analysis in the In Situ Mode

2019 ◽  
Vol 92 (7) ◽  
pp. 1013-1019 ◽  
Author(s):  
P. A. Novikov ◽  
A. E. Kim ◽  
K. A. Pushnitsa ◽  
Wang Quingsheng ◽  
M. Yu. Maksimov ◽  
...  
Keyword(s):  
Cathode Material ◽  
Diffraction Analysis ◽  
Lithium Ion Batteries ◽  
Structural Changes ◽  
Lithium Ion ◽  
X Ray Diffraction ◽  
X Ray

A Combined Experimental and Theoretical Study of Lithiation Mechanism in ZnFe2O4 Anode Materials

MRS Advances ◽  
2018 ◽  
Vol 3 (14) ◽  
pp. 773-778 ◽  
Author(s):  
Lei Wang ◽  
Alison McCarthy ◽  
Kenneth J. Takeuchi ◽  
Esther S. Takeuchi ◽  
Amy C. Marschilok
Keyword(s):  
Early Stage ◽  
Deep Understanding ◽  
Lithium Ion ◽  
Oxidation Products ◽  
Ex Situ ◽  
Theoretical Modelling ◽  
X Ray Diffraction ◽  
X Ray ◽  
X Ray Absorption

ABSTRACTZnFe2O4 (ZFO) represents a promising anode material for lithium ion batteries, but there is still a lack of deep understanding of the fundamental reduction mechanism associated with this material. In this paper, the complete visualization of reduction/oxidation products irrespective of their crystallinity was achieved experimentally through a compilation of in situ X-ray diffraction, synchrotron based powder diffraction, and ex-situ X-ray absorption fine structure data. Complementary theoretical modelling study further shed light upon the fundamental understanding of the lithiation mechanism, especially at the early stage from ZnFe2O4 up to LixZnFe2O4 (x = 2).

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