Herein, in situ chemical anchoring of nickel cobalt selenide (Ni3Se4/CoSe2) on two-dimensional (2D) black phosphorene is creatively proposed via a facile approach. The introduction of 2D black phosphorene brings abundant...

Carbon-based materials are a new class of highly conductive materials that have shown cutting-edge performance in energy storage. However, the lack of a rational design for three-dimensional (3D) structures continues to limit its performance in lithium-ion batteries (LIBs). Herein, we report a 3D layered titanium carbide (TiC) prepared by a facile onepot carbonization treatment. This as-prepared TiC anode has unique continuous 3D architecture, embedded with nanodots and surface oxygenated defects that can provide fast electron and ionic transportation, as well as multiple electrochemical sites for the intercalation/deintercalation of lithium ions in LIBs, resulting in fast rate capability and excellent cycle life of LIBs, for instance, the LIBs consisting of 3D TiC exhibits a specific capacity of 225 mAh g À 1 at 10 A g À 1 after 10,000 cycles with a capacity retention of 95%. Our findings reinvent carbon-based materials, specifically TiC, as promising anode materials for LIBs.

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Titanium-niobium oxide as electrode material for lithium-ion batteries (LIBs) has relatively high working potential and theoretical capacity, which is expected to replace graphite anode. However, it possesses low electronic conductivity,...