Study of the Electrode/Electrolyte Interface on Cycling of a Conversion Type Electrode Material in Li Batteries.

Marino, Cyril; Darwiche, Ali; Dupré, Nicolas; Wilhelm, Henri; Lestriez, Bernard; Martínez, Hervé; Dedryvère, Rémi; Zhang, Wanjie; Ghamouss, Fouad; Lemordant, Daniel; Monconduit, Laure

doi:10.1021/jp402973h

Cited by 62 publications

(55 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such variations of the LiF quantity have been also detected for other negative electrode materials. 46 , 47 After the 100th lithiation, spectrum imaging by STEM-EELS shows that silicon particles appear to be trapped inside a thick LiF matrix covered by a carbonate layer. After the subsequent delithiation (i.e., the 100th delithiation), this carbonate layer could not be observed anymore ( Figure 8 c, d), confirming previous results and suggesting that the dynamic nature of the carbonate part of the SEI is still observed even after the failure of the cell.…”

Section: Resultsmentioning

confidence: 99%

Multiprobe Study of the Solid Electrolyte Interphase on Silicon-Based Electrodes in Full-Cell Configuration

et al. 2016

Self Cite

View full text Add to dashboard Cite

The failure mechanism of silicon-based electrodes has been studied only in a half-cell configuration so far. Here, a combination of 7Li, 19F MAS NMR, XPS, TOF-SIMS, and STEM-EELS, provides an in-depth characterization of the solid electrolyte interphase (SEI) formation on the surface of silicon and its evolution upon aging and cycling with LiNi1/3Mn1/3Co1/3O2 as the positive electrode in a full Li-ion cell configuration. This multiprobe approach indicates that the electrolyte degradation process observed in the case of full Li-ion cells exhibits many similarities to what has been observed in the case of half-cells in previous works, in particular during the early stages of the cycling. Like in the case of Si/Li half-cells, the development of the inorganic part of the SEI mostly occurs during the early stage of cycling while an incessant degradation of the organic solvents of the electrolyte occurs upon cycling. However, for extended cycling, all the lithium available for cycling is consumed because of parasitic reactions and is either trapped in an intermediate part of the SEI or in the electrolyte. This nevertheless does not prevent the further degradation of the organic electrolyte solvents, leading to the formation of lithium-free organic degradation products at the extreme surface of the SEI. At this point, without any available lithium left, the cell cannot function properly anymore. Cycled positive and negative electrodes do not show any sign of particles disconnection or clogging of their porosity by electrolyte degradation products and can still function in half-cell configuration. The failure mechanism for full Li-ion cells appears then very different from that known for half-cells and is clearly due to a lack of cyclable lithium because of parasitic reactions occurring before the accumulation of electrolyte degradation products clogs the porosity of the composite electrode or disconnects the active material particles.

show abstract

Section: Resultsmentioning

confidence: 99%

Multiprobe Study of the Solid Electrolyte Interphase on Silicon-Based Electrodes in Full-Cell Configuration

et al. 2016

Self Cite

View full text Add to dashboard Cite

show abstract

“…SSNMR has been used to probe the chemically bonded environments relevant to the inorganic species, organic molecules, and oligomers of the SEI layer . Up to now, SEI formation on anode materials, such as graphite, disordered carbon, Li 4 Ti 5 O 12 , TiSnSb, MF x /M x O y , LiFeSn 2 , and Si, etc., has been investigated …”

Section: Interfaces In Materials For Lithium Batteriesmentioning

confidence: 99%

Understanding Surface and Interfacial Chemistry in Functional Nanomaterials via Solid‐State NMR

et al. 2017

View full text Add to dashboard Cite

Surface and interfacial chemistry is of fundamental importance in functional nanomaterials applied in catalysis, energy storage and conversion, medicine, and other nanotechnologies. It has been a perpetual challenge for the scientific community to get an accurate and comprehensive picture of the structures, dynamics, and interactions at interfaces. Here, some recent examples in the major disciplines of nanomaterials are selected (e.g., nanoporous materials, battery materials, nanocrystals and quantum dots, supramolecular assemblies, drug-delivery systems, ionomers, and graphite oxides) and it is shown how interfacial chemistry can be addressed through the perspective of solid-state NMR characterization techniques.

show abstract

“…4c, the angle phase approach zero at high frequency and there is no much difference when the frequency is higher than 1 Hz. However, when the frequency is lower than 1 Hz, the phase angle of each electrode are ranked in the order of [29,38,39]. Randles plot in Fig.…”

Section: Charge Storage Contribution Of Fe 2 O 3 With Different Morphmentioning

confidence: 99%

The impact of morphologies and electrolyte solutions on the supercapacitive behavior for Fe 2 O 3 and the charge storage mechanism

Cao³

et al. 2015

Electrochimica Acta

View full text Add to dashboard Cite

Study of the Electrode/Electrolyte Interface on Cycling of a Conversion Type Electrode Material in Li Batteries.

Cited by 62 publications

References 26 publications

Multiprobe Study of the Solid Electrolyte Interphase on Silicon-Based Electrodes in Full-Cell Configuration

Multiprobe Study of the Solid Electrolyte Interphase on Silicon-Based Electrodes in Full-Cell Configuration

Understanding Surface and Interfacial Chemistry in Functional Nanomaterials via Solid‐State NMR

The impact of morphologies and electrolyte solutions on the supercapacitive behavior for Fe 2 O 3 and the charge storage mechanism

Contact Info

Product

Resources

About