Exploring the rate dependence of phase evolution in P2-type Na2/3Mn0.8Fe0.1Ti0.1O2

P2-type Na2/3Mn0.8Fe0.1Ti0.1O2, a promising high-performance electrode material for use in ambient temperature sodium-ion batteries, is examined using operando and long-term in situ synchrotron X-ray diffraction studies to reveal the structural evolution during battery function.

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In situ X-ray diffraction characterisation of Fe0.5TiOPO4 and Cu0.5TiOPO4 as electrode material for sodium-ion batteries

Electrochimica Acta ◽

10.1016/j.electacta.2015.06.105 ◽

2015 ◽

Vol 176 ◽

pp. 18-21 ◽

Cited By ~ 31

Author(s):

Peter Bleith ◽

Hermann Kaiser ◽

Petr Novák ◽

Claire Villevieille

Keyword(s):

Electrode Material ◽

Sodium Ion ◽

Sodium Ion Batteries ◽

X Ray Diffraction ◽

X Ray

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Sodium Ion Batteries: A New rGO-Overcoated Sb2 Se3 Nanorods Anode for Na+ Battery: In Situ X-Ray Diffraction Study on a Live Sodiation/Desodiation Process (Adv. Funct. Mater. 13/2017)

Advanced Functional Materials ◽

10.1002/adfm.201770083 ◽

2017 ◽

Vol 27 (13) ◽

Cited By ~ 3

Author(s):

Xing Ou ◽

Chenghao Yang ◽

Xunhui Xiong ◽

Fenghua Zheng ◽

Qichang Pan ◽

...

Keyword(s):

Diffraction Study ◽

Sodium Ion ◽

Sodium Ion Batteries ◽

X Ray Diffraction ◽

X Ray

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Electrochemical and in-situ X-ray diffraction studies of Na1.2Ni0.2Mn0.2Ru0.4O2 as a cathode material for sodium-ion batteries

Electrochemistry Communications ◽

10.1016/j.elecom.2017.12.029 ◽

2018 ◽

Vol 87 ◽

pp. 71-75 ◽

Cited By ~ 15

Author(s):

Na Su ◽

Yingchun Lyu ◽

Bingkun Guo

Keyword(s):

Cathode Material ◽

Sodium Ion ◽

Sodium Ion Batteries ◽

X Ray Diffraction ◽

X Ray

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Electrochemically Induced Phase Evolution of Lithium Vanadium Oxide: Complementary Insights Gained viaEx-Situ,In-Situ, andOperandoExperiments and Density Functional Theory

MRS Advances ◽

10.1557/adv.2018.281 ◽

2018 ◽

Vol 3 (22) ◽

pp. 1255-1260 ◽

Cited By ~ 3

Author(s):

Jiefu Yin ◽

Wenzao Li ◽

Mikaela Dunkin ◽

Esther S. Takeuchi ◽

Kenneth J. Takeuchi ◽

...

Keyword(s):

Density Functional Theory ◽

Density Functional ◽

Structural Evolution ◽

Phase Evolution ◽

X Ray Diffraction ◽

Functional Theory ◽

X Ray ◽

Α Phase ◽

Lithium Vanadium Oxide

ABSTRACTUnderstanding the structural evolution of electrode material during electrochemical activity is important to elucidate the mechanism of (de)lithiation, and improve the electrochemical function based on the material properties. In this study, lithium vanadium oxide (LVO, LiV3O8) was investigated using ex-situ, in-situ, and operando experiments. Via a combination of in-situ X-ray diffraction (XRD) and density functional theory results, a reversible structural evolution during lithiation was revealed: from Li poor α phase (LiV3O8) to Li rich α phase (Li2.5V3O8) and finally β phase (Li4V3O8). In-situ and operando energy dispersive X-ray diffraction (EDXRD) provided tomographic information to visualize the spatial location of the phase evolution within the LVO electrode while inside a sealed lithium ion battery.

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Contribution of titanium substitution on improving the electrochemical properties of P2-Na0.67Ni0.33Mn0.67O2 cathode material for sodium-ion storage

Functional Materials Letters ◽

10.1142/s1793604720510108 ◽

2020 ◽

Vol 13 (03) ◽

pp. 2051010

Author(s):

Zhijie Cao ◽

Lijiang Li ◽

Chaojin Zhou ◽

Xiaobo Ma ◽

Hailong Wang

Keyword(s):

Electrochemical Properties ◽

Structural Evolution ◽

Extraction Process ◽

Sodium Ion ◽

Electrochemical Performances ◽

Sodium Ion Batteries ◽

X Ray Diffraction ◽

Vacancy Ordering ◽

Ti Substitution

P2-type Na[Formula: see text]Ni[Formula: see text]Mn[Formula: see text]TixO2[Formula: see text] have been synthesized as cathode materials for sodium-ion batteries, and the effect of Ti substitution on the structural evolution and electrochemical properties of Na[Formula: see text]Ni[Formula: see text]Mn[Formula: see text]O2 are investigated in detail. Analysis results indicate that an appropriate substituted amount of Mn with Ti in the MO2 layers effectively stabilize the crystal lattice of these layered electrodes during the Na[Formula: see text] insertion/extraction process, which significantly improves their electrochemical performances between 2.5 and 4.4[Formula: see text]V. The discharge/charge patterns and in situ X-ray diffraction measurements expound the successful suppression of Na[Formula: see text]/vacancy ordering and multiphase transition during the de-sodiation/sodiation process to resist the structure-induced degradation, which provide possible guidelines for exploring high performances sodium-ion batteries.

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