Transport Properties of Nanostructured Li₂TiO₃ Anode Material Synthesized by Hydrothermal Method

Round 1

Reviewer 1 Report

The article presents a very interesting work on transport properties of nanostructured material Li₂TiO₃.  

There are many results of experiments and analysis and the results are presented correctly.

The quality of Figure 5, and Figure 7 must be improved to clarify the results.

 

 

Author Response

The article presents a very interesting work on transport properties of nanostructured material Li2TiO3. There are many results of experiments and analysis and the results are presented correctly. The quality of Figure 5, and Figure 7 must be improved to clarify the results. We wish to thank the referee for their helpful comments. For clarity, the referee reports have been copied hereunder, and the answer to the comments has been inserted in red characters. All the corrections have been reported in red in the updated version. The quality of Figure 5, and Figure 7 must be improved to clarify the results. Thank you for this comments . Figs. 5 and 7 have been modified for quality improvement

Reviewer 2 Report

The paper reports the synthesis of  Li₂TiO₃ nano powders for anode material in lithium-ion batteries and their morphological and electrochemical characterization. The experimental work is well-articulated and presented and the manuscript needs only minor adjustments. Below some detailed comments:

Abstract: Try to avoid acronym and abbreviations as much as possible.

3.2 Surface Morphology: The FESEM characterization was done with material calcinated at 800° C for 6 h, while in materials and method the calcination time is 2h. Can you explain this difference?

3.3 Electrical Transport: The resolution of Fig. 5 is very low. You also stated that two semicircles can be observed in the Nyquist plot for higher temperature (>400° C) but with the current graph is not really clear. You could separate Fig5 A from the rest and make the magnification in the inset more clear.

In Fig.5(a) how do you explain the trend of the last 3 points of each Nyquist plot?

Please report the equivalent circuit used to fit the data.

Author Response

The paper reports the synthesis of Li2TiO3 nano powders for anode material in lithium-ion batteries and their morphological and electrochemical characterization. The experimental work is well-articulated and presented and the manuscript needs only minor adjustments. Below some detailed comments: Abstract: Try to avoid acronym and abbreviations as much as possible. 3.2 Surface Morphology: The FESEM characterization was done with material calcinated at 800° C for 6 h, while in materials and method the calcination time is 2h. Can you explain this difference? 3.3 Electrical Transport: The resolution of Fig. 5 is very low. You also stated that two semicircles can be observed in the Nyquist plot for higher temperature (>400° C) but with the current graph is not really clear. You could separate Fig5 A from the rest and make the magnification in the inset more clear. In Fig.5(a) how do you explain the trend of the last 3 points of each Nyquist plot? Please report the equivalent circuit used to fit the data. We wish to thank the referee for their helpful comments. For clarity, the referee reports have been copied hereunder, and the answer to the comments has been inserted in red characters. All the corrections have been reported in red in the updated version. The paper reports the synthesis of Li2TiO3 nano powders for anode material in lithium-ion batteries and their morphological and electrochemical characterization. The experimental work is well-articulated and presented and the manuscript needs only minor adjustments. Below some detailed comments: Abstract: Try to avoid acronym and abbreviations as much as possible. Thank you for this comment. All acronyms have been deleted in the abstract. 3.2 Surface Morphology: The FESEM characterization was done with material calcinated at 800° C for 6 h, while in materials and method the calcination time is 2h. Can you explain this difference? Reply. Thank you for this comment. We have corrected this typo error. 3.3 Electrical Transport: The resolution of Fig. 5 is very low. You also stated that two semicircles can be observed in the Nyquist plot for higher temperature (>400° C) but with the current graph is not really clear. You could separate Fig5 A from the rest and make the magnification in the inset more clear. Reply. Thank you for this comment. We have modified the Fig. 5a and deleted the inset by two impedance plots in the temperature range 320-420 and 420-500 °C. In Fig.5(a) how do you explain the trend of the last 3 points of each Nyquist plot? Reply. Thank you for this comment. We have repeated these experiments. In fact, it was an experimental artefact occurring at low frequency that could be due to the connection defect. Please report the equivalent circuit used to fit the data. Reply. Thank you for this comment. We have added the equivalent circuit as inset in Figs. 5a and 5b.

Round 2

Reviewer 2 Report

The authors addressed satisfyingly all my remarks