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Pulp from Gelidium Red Seaweed: Marine Plant to An Eco-Friendly Separator for Aluminum-Graphite Battery


Due to environmental and sustainability concern, red seaweed-pulp has been used as a battery separator. The unique and features of red seaweed pulp; small, regular and hollow fiber has enabled the pulp to absorb and retain the wettability of electrolyte and contribute to high ion conductivity to the battery. This technology has successfully transformed red saweed pulp (fiber) to an eco-friendly battery separator. A rechargeable aluminium-graphite bio-battery, comprised of red seaweed pulp separator embedded with salt/Al ion conducting imidazolium-type ionic liquid electrolyte, sandwiched between aluminium metal (anode) and modified graphite plate (cathode) has been developed. This bio battery is slim, light weight, high electrochemical potential stability of 2.2 V, discharge capacity 0f 60 mAh, and 100 times cyclability. It has a capability to energize many appliances such as fan, phone, car toy, and light-emitting diode (LED). The sustainability of red seaweed and abundances of aluminium promising an environmental friendly and cost effective battery system.

The advantages:

  • FAST CHARGING: Aluminum anode transfer three electrons at one electrochemical process.
  • SAFE: Safe usage and free from explosion
  • ECO-FRIENDLY: Separator from fibres and usage of Al.
  • HIGH SURFACE AREA: Hollow fiber provide high surface area, high absorption and retain the wettability of electrolyte
  • GRAPHITE: storing current, high capacity

Get the technology fact sheet here:

For any inquiries, kindly contact:

Lee Ching Shya

UMCIC Business Officer University of Malaya

Email: leecs@um.edu.my

Tel: +603-7967-7351/7352

Last Updated: 15/05/2019