Carbon fibre electrodes for battery energy storage applications

Energy storage plays a key role in the power management and broader use of renewable energy. The electrochemical battery provides quick charge‒discharge ability and high storage capacity and  therefore is commonly used to store electric power.    Nevertheless, the lead electrode decays with partial state-of-charge /discharge cycling that results in a low battery cycle- life.

This presentation introduces a ‘Thin Plate of Pure Lead’ which is completely bonded with a carbon fibre/cloth bone structure.  This design has been designated as a  ‘carbon fibre electrode’.   Under  special partial state-of-charge/discharge cycling, the Thin Plate of Pure Lead is corroded into lead nanoparticles in deep layers.  These react in equilibrium with the electrolyte during charge/discharge process to form a nanoporous structure.  Carbon fibre electrodes have been used as positive and negative electrodes to form a lead‒acid cell that demonstrates long cycle-life and high rate charge/discharge ability.  The coulombic efficiency is almost 100% without heat loss on 2C-charging and 10C-discharging.

Presenters

Associate Professor Shu-Huei Hsieh Vice President for Research and Development, National Formosa University/Department of Materials Science and Engineering, Taiwan

Shu-Huei Hsieh established The Nano Material Laboratory (NML) in the Department of Materials Science and Engineering at the National Formosa University in Taiwan.  By utilizing wet chemistry methods, NML aims to develop low-cost fabrication processes for the mass production of functional carbon materials for energy-storage applications.