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oai:figshare.com:article/33829795 2026-09-16T07:12:59Z portal_1197 item_type_3 month_year_09_2026

Data for Investigating the influence of synthesis route on the crystallinity and rate capability of niobium pentoxide for energy storage Evé Wheeler-Jones (24888370) Melanie Loveridge (3187917) Richard I. Walton (1328463) Anisotropy Niobium oxide -- Synthesis Crystallization Migrated from ePrints Orthorhombic niobium pentoxide (T-Nb2O5) is known to be an effective anode material for Li-ion batteries (LIBs) with very high rate capability, but the other Nb2O5 polymorphs and non-crystalline phases have lacked thorough exploration. A simple hydrothermal mechanism is used to produce an anisotropically crystalline ‘as-synthesised material’, which has not previously been characterised electrochemically. The as-synthesised material is heat-treated to produce T-Nb2O5 at 600°C and monoclinic (H-) Nb2O5 at 1000°C. We present electrochemical properties for all of these materials. Collectively we report rate sweeps and demonstrate high current stability (20 C-rate capability) and a long life span, up to 200 cycles. We propose the H-phase as a high rate anode when prepared via an anisotropically crystalline precursor, as it is able to demonstrate 60 % capacity retention after 200 cycles at a notably high current flux of 20 C. Such high rates results are rare for this material without integration with carbon materials. For the anisotropically crystalline Nb2O5 material, we achieve cycling rates up to 100 C with 80% capacity recovery upon current reduction, representing an important discovery in the development of very high rate anode materials.<br><br>All data are Text format and are labelled according to the specific samples in the figures in the paper and supplementary information. Refer Readme file for more information on data. 2021-08-03T00:00:00Z Dataset Dataset 10.82444/warw.33829795.v1 https://figshare.com/articles/dataset/Data_for_Investigating_the_influence_of_synthesis_route_on_the_crystallinity_and_rate_capability_of_niobium_pentoxide_for_energy_storage/33829795 CC BY 4.0