W6+-doped Nb2O5 as high-rate anode materials for lithium-ion batteries
Source abstract
Abstract
Niobate pentoxides have been considered as promising anode materials of lithium-ion batteries (LIBs) on account of their intrinsic large capacities, high cycling stability and enhanced safety. However, their practical usages are limited by poor rate capabilities due to the low electrical and lithium-ion diffusion rate. In this work, W 6+-doped Nb 2O 5 nano material with enhanced rate capacity was synthesized. W 6+ doping can expand crystal lattices in the Nb 2O 5, improving Li + diffusion coefficients. The production of Nb 4+ due to W 6+ doping results to enhance electrical conductivity. The H 0.05 material (W 0.05-Nb 2O 5) exhibits delightful rate capacity (167.1 mAh g −1 at 20 C) and prominent cyclic stability resulting from their structure stability (124.3 mAh g −1 at 5 C after 600 cycles). This novel anode material provides great promise for the construction of high-performance LIBs.
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Research context
OpenAlex topics: Advancements in Battery Materials · Semiconductor materials and devices · Advanced Battery Materials and Technologies
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (43)
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