A simple thermal oxidation approach has been used to fabricate nanostructured NiO electrodes at a temperature as low as 400 °C in air. Galvanostatic battery testing showed that the NiO electrode exhibits excellent rate capability and high capacity. The performances can be attributed to its favorable morphology and the better electrical contact between NiO and Ni.

Mesoporous NiO nanosheet networks with a thickness of more than 5 μm were fabricated on Ni foam for application as an electrode in Li ion batteries. Benefiting from the favorable macro/meso-porous structures as well as the great loading of the synthesized NiO, the electrode exhibits high capacity and excellent rate capability.

Si/carbon nanotube (CNT) nanocomposites are ideal anode materials for lithium ion batteries with high specific capacities. However, it has been a significant challenge to fabricate uniform Si/CNT nanocomposite anodes with high areal capacities, say above 0.4 mA h cm⁻². In this paper, we demonstrate a layer-by-layer assembling technique as a facile and scalable method to prepare a multilayer Si/CNT coaxial nanofiber anode which possesses an areal storage capacity above 1 mA h cm⁻². In addition, the prepared Si/CNT coaxial nanofiber anodes show an excellent cyclability. The excellent performance of the Si/CNT coaxial nanofiber multilayer anodes is attributed to the unique nanostructure. The CNT network matrix offers mechanical support to accommodate the stress associated with the large volume change of Si coating and the nanoporous multilayer structure provides continuous paths for Li ion and electron transport.