Temperature effects on Li 4 Ti 5 O 12 electrode/electrolyte interfaces at the first cycle: A X-ray Photoelectron Spectroscopy and Scanning Auger Microscopy study

Gieu, Jean-Baptiste; Courrèges, Cécile; Ouatani, Loubna El; Tessier, Cécile; Martínez, Hervé

doi:10.1016/j.jpowsour.2016.04.007

Cited by 41 publications

(30 citation statements)

References 35 publications

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“…There are other less intense contributions to O 1s at higher binding energies (peaks at around 531 eV and over 532 eV), associated to surface species as previously reported. [ 54,55 ] The Ti 2p region (Figure S2d, Supporting Information) shows the splitting of 2p 1/2 (463.6 eV) and 2p 3/2 (457.9 eV) orbitals, these binding energies are in agreement with the presence of a Ti(IV) oxide, [ 69 ] as is the case for LTO. Presence of lithium is also confirmed by the detection of Li 1s photoelectron signal (Figure S2e, Supporting Information), being part of it related to LTO but also to the surface species already mentioned.…”

Section: Resultssupporting

confidence: 55%

See 1 more Smart Citation

Surface Evolution of Lithium Titanate upon Electrochemical Cycling Using a Combination of Surface Specific Characterization Techniques

Rikarte

Acebedo

Vilalta‐Clemente

et al. 2020

Adv Materials Inter

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Highly oriented thin‐film electrodes are the best playground to better understand the evolution of the electrode‐electrolyte interfaces during battery operation. This is crucial to develop next generation batteries. In this cover the authors represent Li ions (spheres) from the electrolyte (fog) reaching LTO electrode surface (SEM image) as in cell operation. More details can be found in article number 1902164 by Miguel Ángel Muñoz‐Márquez and co‐workers.

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Section: Resultssupporting

confidence: 55%

“…Only in the last decade, different studies confirmed that LTO is not free from surface reactions. [ 46–55 ]…”

Section: Introductionmentioning

confidence: 99%

Surface Evolution of Lithium Titanate upon Electrochemical Cycling Using a Combination of Surface Specific Characterization Techniques

Rikarte

Acebedo

Vilalta‐Clemente

et al. 2020

Adv Materials Inter

View full text Add to dashboard Cite

show abstract

“…3. This hypothesis has already been proposed by many studies, stating that the passivation of LTO electrode is a gradual process and the SEI film obtained during the first lithium intercalation process could slightly dissolve during the next lithium deintercalation process [22,29].…”

Section: The Gassing Behavior Of Lto Batterymentioning

confidence: 64%

“…It is also important to note that the values of dP/dt vary as a function of discharge rate, where higher value is recorded at the rate of 3 C. Gieu et al [32] proposed a new intercalation/ deintercalation module of LTO material which states that in a core-shell module, the shell of the LTO particles would always be surrounded by Ti 4+ ions with a poor electrical conductivity if kept steady. Based on this assumption, an instantaneous increase in the electrochemical polarization would appear during the beginning of delithiation of LTO, leading to a transient potential rise of the LTO electrode.…”

Section: The Gassing Behavior Of Lto Batterymentioning

confidence: 99%

Quantitative investigation of the gassing behavior in cylindrical Li4Ti5O12 batteries

Wang

Zhang

Liu

et al. 2017

Journal of Power Sources

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The Li 4 Ti 5 O 12 gassing behavior is a critical limitation for applications in lithium-ion batteries. The impact of electrode/electrolyte interface, as well as the underlying mechanisms involved during the gassing process, are still debated. Herein, a quantitative evolution of the internal pressure in 18650-type cylindrical Li 4 Ti 5 O 12 batteries is investigated using a self-designed pressure testing device. The results indicate that the internal pressure significantly increases during the formation cycle and continues growing during the following cycles. After several charge and discharge cycles, the pressure finally reaches constant. Simultaneously, the formation of the solid electrolyte interphase (SEI) film is also investigated. The results suggest that the initial formed SEI film has a thickness of 24 nm, and is observed to shrink during the following cycles. Furthermore, no apparent increase in thickness accompanying the pressure rising is noticed. These comparative investigations reveal a possible mechanism of the gassing behavior. We suggest that the gassing behavior is associated with side reactions which are determined by the potential of the Li 4 Ti 5 O 12 electrode, where the active sites of the electrode/electrolyte interface manage the extent of the reaction.

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“…On the other hand, plenty of studies attempted to look for alternative anode materials with high cyclic capacity and rate capability for Li-ion batteries [18][19][20][21][22][23]. Among them, the temperature-dependent characters of carbon [6], Li 4 Ti 5 O 12 [24,25], Li 3 VO 4 [26] and the oxides (TiO 2 , SiO) [10,13,27] have been reported. However, the reports about the performance of zinc tin oxide anodes at low and elevated temperatures are few.…”

Section: Introductionmentioning

confidence: 99%

Influencing factors of low- and high-temperature behavior of Co-doped Zn2SnO4–graphene–carbon nanocomposite as anode material for lithium-ion batteries

Gao

Zhang

et al. 2017

Journal of Electroanalytical Chemistry

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Zn 2 SnO 4-based anode materials have recently attracted considerable attention due to their high capacity and low price for lithium-ion batteries. However, their performance is affected by temperature and temperature-dependent characters have not been investigated sufficiently. In this regard, we tested the electrochemistry performance of Co-doped Zn 2 SnO 4 −graphene−carbon (Co−ZTO−G−C) nanocomposite anode at various temperatures (−25, 25 and 60 °C) and analyzed the main limitations and improvements of its low-and high-temperature behavior. Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) results demonstrated that severe concentration polarization, the absence of Zn 2 SnO 4 /Zn(Sn) redox couple and large charge-transfer resistance R ct limited its low-temperature performance. Further electrochemical performance analysis indicated that the doped Co could effectively decrease R ct of the nanocomposite and improve its capacity at low temperature. It also suggested that graphene and carbon layer contributed to maintaining its capacity during high-temperature cycles. Field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD) results revealed that the performance degeneration of the nanocomposite at elevated temperature was mainly attributed to severe volume expansion/contraction of Zn 2 SnO 4 nanoparticles and destruction of Zn 2 SnO 4 cubic structure. The XRD results also showed that the cubic structures of Zn 2 SnO 4 at all temperatures were destroyed after cycling, which led to cyclic performance degeneration of the Co−ZTO−G−C nanocomposite.

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Temperature effects on Li 4 Ti 5 O 12 electrode/electrolyte interfaces at the first cycle: A X-ray Photoelectron Spectroscopy and Scanning Auger Microscopy study

Cited by 41 publications

References 35 publications

Surface Evolution of Lithium Titanate upon Electrochemical Cycling Using a Combination of Surface Specific Characterization Techniques

Surface Evolution of Lithium Titanate upon Electrochemical Cycling Using a Combination of Surface Specific Characterization Techniques

Quantitative investigation of the gassing behavior in cylindrical Li4Ti5O12 batteries

Influencing factors of low- and high-temperature behavior of Co-doped Zn2SnO4–graphene–carbon nanocomposite as anode material for lithium-ion batteries

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