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Nanowire Based Solid electrolyte for Lithium-Ion Batteries

Background: Low temperature hydrogen proton-exchange membrane fuel cells (PEMFCs) with high power density have been developed as an efficient and environmentally friendly energy conservation device for a future clean and sustainable energy system. However the commercialization of PEMFCs has been hampered by lack of a highly efficient and cost-effective oxygen reduction reaction (ORR) catalyst. The most non precious metals and alloys are unstable in acid and face durability issues in PEMFCs. The liquid alkaline or alkaline membrane fuel cells could serve the purpose as non-precious metals and alloys would be stable in base than in acid. However a serious concern arises on the anode side i.e. the hydrogen oxidation reaction (HOR) when switching from acidic to alkaline medium. Technology Description: The invention describes a correlation between exchange current density and hydrogen binding energy (HBE) which helped in searching for a new electrocatalyst in alkaline electrolytes. Using this correlation a novel metallic catalyst CoNiMo was successfully synthesized by electrochemically depositing it on a polycrystalline gold (Au) disk electrode using pulse voltammetry. This catalyst proved to be an efficient and inexpensive alternative for proton-exchange membrane fuel cells (PEMFCs). Applications: Fuel cells

Benefits:

1) CoNiMo exhibits highest HOR activity in an alkaline electrolyte among all non-precious metal catalyst 2) Low cost pathway for alkaline membrane fuel cells 3) CoNiMo outperformed the traditionally used Pt catalyst

Date of release: