SLINTEC Building Structure 1500x110-04

Energy

Renewable Energy and Storage Systems

With rapidly growing energy demands and concerns over energy security and environmental pollution, it is highly desirable to explore renewable and sustainable energy sources. Wind power and Solar photovoltaics (PV) are the world’s fastest growing renewable energy.

Graphene exhibits excellent mechanical, electrical, thermal and optical properties and is particularly suitable for the implementation in electrochemical applications because of extraordinary electrical conductivity, large specific surface area, unique heterogeneous electron transfer and charge carrier rates and good electrochemical stability. The SLINTEC spin-off company Ceylon Graphene Technologies’ high quality graphene is highly desirable for renewable energy and storage systems. As part of our contribution to the extensive research on lead acid batteries with added graphene ended up with 300% charge acceptance improvements and 200% cycle life improvements.

Graphene Automobile Battery Launched by SLINTEC's Spin-Off Company Ceylon Graphene Technologies

Ceylon Graphene Technologies launched first ever Graphene applied Lead Acid Battery Technology together with Associated Battery Manufacturers (Cey) Ltd, leader in the industry of battery manufacturing in the region. Mixed composites of Reduced Graphene Oxide and Expanded Graphite mixed in an optimized ratio have delivered promising results of enhanced charge acceptance of lead acid batteries while reducing sulfation in negative plates. This technology is ready to be applied in the mass production and soon to be available in the market by 2020 under the Lead Acid Battery range of Exide. The result optimisation using graphene and its derivatives expected to be further modified and extensive research is in progress.

Iron Flow Battery

All-iron flow batteries offer a potential long-lasting solution to safely, efficiently and cost-effectively storing renewable energy.

Iron flow batteries use electrolytes made up of iron salts in ionized form to store electrical energy in the form of chemical energy. Storing chemical energy within an external battery container offers flow batteries flexibility to shift energy flow and rate of storage.

Iron in flow batteries are advantageous as iron is abundant and non-toxic and therefore creates an affordable and safe alternative for storing chemical energy.

Li-ion Battery Anode

Rechargeable lithium ion batteries are by far the most widespread form of electrical energy storage for portable applications such as electric vehicles and consumer devices due to its high energy density.

Nowadays, commercially available lithium batteries use graphite as the anode material.

Graphene derivatives from Graphite have recently emerged as a promising composite material due to its excellent electrical conductivity properties.

The  modification of the anode of lithium batteries with graphene derivatives will increase the capacity of battery and thereby increase the operating time and life time of batteries.