Advanced material developed for ultra-stable, high capacity rechargeable batteries

A team of researchers from the National University of Singapore (NUS) has successfully designed a novel organic material of superior electrical conductivity and energy retention capability for use in battery applications. This invention paves the way for the development of ultra-stable, high capacity and environmental friendly rechargeable batteries.

The study led by Professor Loh Kian Ping from the Department of Chemistry at NUS Faculty of Science was published in scientific journal Nature Energy on 8 May 2017.

Challenges of rechargeable batteries

Rechargeable batteries are the key energy storage component in many large-scale battery systems such as electric vehicles and smart renewable energy grids. With the growing demand of these battery systems, researchers are turning to more sustainable, environmentally friendly methods of producing them. One such method is to use organic materials as an electrode in the rechargeable battery.

Organic electrodes leave lower environment footprints during production and disposal which offers a more eco-friendly alternative to inorganic metal oxide electrodes commonly used in rechargeable batteries. The structures of organic electrodes can also be engineered to support high energy storage capabilities. The challenge, however, is the poor electrical conductivity and stability of organic compounds when used in batteries. Organic materials currently used as electrodes in rechargeable batteries -- such as conductive polymers and organosulfer compounds -- also face rapid loss in energy after multiple charges.

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