Shear-structured MoNb₆O₁₈ as a new anode for lithium-ion batteries

Abstract

Owing to their high theoretical capacities, safety operate voltage, unique tunnel structural features for fast lithium ion transfer and structural stability, niobium-based oxides are regarded as promising candidate anode materials...

Highly [001]-oriented N-doped orthorhombic Nb2O5 microflowers with intercalation pseudocapacitance for lithium-ion storage

“…8d displays the cycle stability of the full cell, delivering a capacity of 126.2 mA h g −1 after 3500 cycles at a high rate of 10C with a coulombic efficiency of 99.7% and a capacity retention of 92.9% of the second discharge capacity. Additionally, compared to some other full cells with Nb-based anodes, 62–70 the LiNi 0.5 Mn 0.3 Co 0.2 O 4 ||N-Nb 2 O 5 full cell shows comparable Li + storage properties (Table S2†). In these regards, N-Nb 2 O 5 will be an ideal anode for high-efficiency LIBs of EDVs and ESSs.…”

Structural and electrochemical insights into novel Wadsley Roth Nb7Ti1.5Mo1.5O25 and Ta7Ti1.5Mo1.5O25 anodes for Li-ion battery application

“…45,46 At 1.90 V a reversible peak is observed corresponding to the overlapping redox couples of Mo 6+ -Mo 4+ (oct sites), Ti 4+ -Ti 3+ and Nb 5+ -Nb 4+ and the peak at 1.42 V can be attributed as the partial Nb 4+ -Nb 3+ redox peak. 20,[47][48][49] The dQ/dV plot for NTMO71515 shows no clear shifting of the peaks between the first and third cycle. However, the intensities do decrease slightly between the first and second cycle highlighting the loss of Li during the first cycle.…”

Improved Performance of Li-Added Mo–Nb Oxide as the Anode for Li-Ion Batteries with N-Carbon Coating

“…The use of niobium oxides as anode materials in LiB has been extensively documented. However, only a few studies have been carried out to investigate the molybdenum niobium oxide as an anode electrode for LiB. − …”