Scanning probe microscopy based characterization of battery materials, interfaces, and processes

Kempaiah, Ravindra; Vasudevamurthy, Gokul; Subramanian, Arunkumar

doi:10.1016/j.nanoen.2019.103925

Cited by 55 publications

(59 citation statements)

References 277 publications

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“…However, their ability to characterise materials at the atomic scale has enabled researchers to examine more minute physiochemical properties of battery electrodes, such as interfacial reactions at the electrode surface, ionic diffusion within particles, or the presence of microstructural features and their effect on charge transport. 295…”

Section: Microscopymentioning

confidence: 99%

Probing the charged state of layered positive electrodes in sodium-ion batteries: reaction pathways, stability and opportunities

2020

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Section: Microscopymentioning

confidence: 99%

Probing the charged state of layered positive electrodes in sodium-ion batteries: reaction pathways, stability and opportunities

2020

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“…The signals that dominate the Raman spectrum were observed at 486 cm −1 and 596 cm −1 . These correspond to the vibrational flexion modes attributed to the A 1g and E g vibrational modes, associated with the presence of LiCoO 2 [8,37,38].…”

Section: Raman Characterizationmentioning

confidence: 83%

Chemical synthesis and steady state characterization of a nanocrystalline lithium cobalt oxide

et al. 2020

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Lithium cobalt oxide (LiCoO2) is one of the most relevant components in lithium-ion batteries. The array of sought-after features of LiCoO2 depends on its synthesis method. In this work we synthesized and characterized a nanocrystalline LiCoO2 oxide obtained with a wet chemistry synthesis method. The oxide obtained was a homogeneous powder in the nanometric range (5-8 nm) and exhibited a series of improved properties. Characterization by FTIR and UV-Vis techniques led to identifying citrate species as main products in the ﬁrst step of the synthesis process. X-ray diffraction (XRD), Raman, and transmission electron microscopy (TEM) characterizations led to identifying a pure crystalline phase of the synthesized LiCoO2 oxide. Steady state electrical characterization and solid-state impedance spectroscopy determined the high conductance of the synthesized oxide. All these features are desirable in the design of cathodes for lithium ion batteries.

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“…There is no thermodynamic driving force for the electrochemical oxidation of the electrolyte on most traditional positive electrode materials ( Figure 4A ). There are currently three generally accepted mechanisms that describe the formation of the CEI film on the positive electrode (Li et al, 2008 ; Kempaiah et al, 2019 ; Gründer and Lucas, 2020 ):…”

Section: Mechanism Of Film Formation On the Cathode Surface (Includinmentioning

confidence: 99%

Regulating the Performance of Lithium-Ion Battery Focus on the Electrode-Electrolyte Interface

Zhao

2020

Front. Chem.

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The development of lithium-ion battery (LIB) has gone through nearly 40 year of research. The solid electrolyte interface film in LIBs is one of most vital research topics, its behavior affects the cycle life and safety of LIBs significantly. Progress in understanding the interfacial layer on the negative and positive electrodes in LIBs has been the focus of considerable research in the past few decades, but there remains a number of problem to be understood at the fundamental level, and there is still a great deal of controversy regarding the composition and formation mechanism of the interfacial film. In this article, we summarize recent research conducted on the interfacial film in LIBs, including the film formation mechanism, the composition, and stability of the interfacial film on the positive electrodes (in both diluted and high-concentration electrolytes). And the methodologies and advanced techniques implemented for the characterization of the interfacial film. Finally, we put forward some of the future development direction for the interfacial film and urgent problems that need to be solved.

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Scanning probe microscopy based characterization of battery materials, interfaces, and processes

Cited by 55 publications

References 277 publications

Probing the charged state of layered positive electrodes in sodium-ion batteries: reaction pathways, stability and opportunities

Probing the charged state of layered positive electrodes in sodium-ion batteries: reaction pathways, stability and opportunities

Chemical synthesis and steady state characterization of a nanocrystalline lithium cobalt oxide

Regulating the Performance of Lithium-Ion Battery Focus on the Electrode-Electrolyte Interface

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