Matches in SemOpenAlex for { <https://semopenalex.org/work/W4387366543> ?p ?o ?g. }
- W4387366543 abstract "Abstract Na 2 Ti 6 O 13 (NTO) with high safety has been regarded as a promising anode candidate for sodium‐ion batteries. In the present study, integrated modification of migration channels broadening, charge density re‐distribution, and oxygen vacancies regulation are realized in case of Nb‐doping and have obtained significantly enhanced cycling performance with 92 % reversible capacity retained after 3000 cycles at 3000 mA g −1 . Moreover, unexpected low‐temperature performance with a high discharge capacity of 143 mAh g −1 at 100 mA g −1 under −15 °C is also achieved in the full cell. Theoretical investigation suggests that Nb preferentially replaces Ti3 sites, which effectively improves structural stability and lowers the diffusion energy barrier. What's more important, both the in situ X‐ray diffraction (XRD) and in situ Raman furtherly confirm the robust spring effect of the Ti−O bond, making special charge compensation mechanism and respective regulation strategy to conquer the sluggish transport kinetics and low conductivity, which plays a key role in promoting electrochemical performance." @default.
- W4387366543 created "2023-10-06" @default.
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- W4387366543 date "2023-10-13" @default.
- W4387366543 modified "2023-10-15" @default.
- W4387366543 title "Improving Low‐temperature Performance and Stability of Na2Ti6O13 Anodes by the Ti–O Spring Effect through Nb‐doping" @default.
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- W4387366543 doi "https://doi.org/10.1002/ange.202312310" @default.
- W4387366543 hasPublicationYear "2023" @default.
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