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Article summary:
1. Sodium-ion batteries (SIBs) have become a research hotspot due to their low cost and similar electrochemical mechanism to lithium-ion batteries.
2. Polyvinylidene fluoride (PVDF) has been used as a separator for SIBs due to its excellent chemical and electrochemical stability, but its poor thermal stability is an issue.
3. A flexible separator@electrode combination was obtained by direct electrospinning PVDF/Si3N4 blend solution on the Na2Ni[Fe(CN)6] electrode, which showed excellent electrochemical performance with high initial coulombic efficiency, capacity retention rate and rate capability.
Article analysis:
This article provides a detailed overview of the development of sodium-ion batteries (SIBs), focusing on the use of polyvinylidene fluoride (PVDF) as a separator for SIBs and the fabrication of a flexible separator@electrode combination by direct electrospinning PVDF/Si3N4 blend solution on the Na2Ni[Fe(CN)6] electrode. The article is well written and provides sufficient evidence to support its claims, such as citing relevant literature in order to back up its arguments. The article also presents both sides of the argument equally, noting potential risks associated with using PVDF as a separator for SIBs. However, there are some points that could be further explored in order to make this article more reliable and trustworthy. For example, it would be beneficial to provide more information about other possible solutions for improving the thermal stability of PVDF separators, such as adding SiO2 or ZrO2. Additionally, it would be useful to discuss potential applications of this technology in more detail in order to provide readers with a better understanding of how this technology can be used in practice. In conclusion, this article is generally reliable and trustworthy but could benefit from further exploration into certain aspects in order to make it even more comprehensive and informative.