Sulfur cathodes for lithium sulfur batteries have been designed to be combined with conductive carbon because the insulating nature of sulfur causes low active material utilization and poor rate capability.
Not only were the defects of gas holes, porosity and non-metal inclusions in the die casting eliminated, but also the investment of the forging equipment and the performing process were decreased, and the coefficient of material utilization and the rate of production were increased.
For non-in situ strategy, whole of the diatomite is used as raw material to improve the utilization rate of raw materials and obtain high crystallinity ZSM-5 zeolite.
Furthermore, an engineered cathode is used, comprising a LiFePO4/PEDOT PSS interface at the current collector that improves the material utilization at high rates and mitigates the corrosive effects of LiTFSI on aluminium current collector.
Its active material utilization and capacity retention rates are 76.0% and 64.4%, respectively.
Large capacity anodes for a zinc air battery have also been made and have shown excellent material utilization at various discharge rates.
It was concluded that the electronic contact at the LiFePO4/carbon interface plays a decisive role in material utilization at different discharge rates which affects the capacity fade upon cycling.
Galvanostatic charge/discharge cycling tests showed that in comparison with the electrode without CNTs, the pasted nickel electrode with added CNTs exhibited better electrochemical properties in the chargeability, specific discharge capacity, active material utilization, discharge voltage, high-rate capability and cycling stability.
In order to make the best use of Nd Fe B (NdFeB) material and reduce the cost of maglev rail, the effect of the rail's structural parameters on levitation force and the utilization rate of NdFeB material are analyzed.
Meanwhile, the NiCo2O4 nanosheets grown uniformly on Ni foam functioned as the backbone to support and give reliable electrical connection to XMoO4 (X = Ni, Co) nanosheets, which can contribute to electronic and ionic diffusion and improve the utilization rate of electrode material.
