Abstract
It is definitely not enough to realize the large-scale application of sodium-ion batteries (SIBs) only depending on the earth abundance and low cost of Na resources. Low-cost synthesis methods and high performance electrode materials are also imperative. In this work, a simple and low-cost synthesis method is introduced to synthesize both monoclinic and tetragonal Na2VOP2O7, which are the cathode candidates for SIBs. The results of our calculation based on bond valence sum show that monoclinic Na2VOP2O7 has high Na + conductivity. More importantly, monoclinic Na2VOP2O7 presents a high operation voltage about 4.0 V (vs Na+/Na) and a moderate discharge capacity of ∼90 mAh g−1, resulting in a remarkable energy density of 360 W h kg−1.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
