Self- Charging Battery Technology. A battery cell that can create electricity from humidity in the air or skin surface targeting the global billion dollar battery market for Internet of Things (IOT) devices.
Self-Charging Battery Technology
The battery technology is a liquid ink based on graphene oxide that is able to harvest energy from the humidity in the air or skin surface to self-charge themselves within minutes. The technology is being developed through collaboration with the University of New South Wales and CSIRO.
This technology targets the global multi-billion dollar battery market for IOT devices. It has the potential to enable batteries to self-charge from the humidity in the air, potentially removing the need for manual charging or wired powered.
Development will be conducted under the Australian Research Council part funded collaboration between the Company, UNSW and CSIRO. The expected outcomes of the Project are new electronic materials for a wide range of uses in flexible electronics and significant advances in energy efficient data storage devices. IP and commercialisation rights remain with AAM.
Benefitting from exceptional physicochemical properties, graphene-based materials are able to harvest energy from external factors such as moisture and heat. Graphene oxide is formed by the oxidation of graphite which is cheap and readily available.
Graphene oxide is dispersible in water and other solvents. Materials engineering is being conducted by the world leading electronic materials team at UNSW. Early stage work with graphene oxide ink at UNSW includes:
- Fabrication of over 100 battery cells by coating the graphene oxide ink onto glass.
- Self-charging time using water vapour in the air of approximately 3 mins.
- Extremely thin battery cells at around 10-20 microns. Thinner than a human hair.
- Small size of 1 cm with potential to be made much smaller.
- Generation of more than 0.7 Volts of power a cell. 3.7 Volts goal from connected cells in 12 weeks.
Development of the Battery Ink at UNSW in the next 12 weeks is focused on:
- Materials engineering and optimization of ink formulation
- Achieving scale up to large batch size of Battery Ink of at least 1 litre
- Successful prototype connecting multiple battery cells producing at least 3.7 Volts.
- Further development challenges include Battery cell size whilst increasing current output at lower humidity levels and demonstrator device development.
Further development challenges include Battery cell size whilst increasing current output at lower humidity levels and demonstrator device development.
Batteries for Internet of Things (IOT)
Technological advancements and adoption of various IOT devices such as wearables, smart meters, various sensors and home automation products, are key reasons for driving growth in the battery market. The global battery market for IOT is already significant with USD 8.7 billion in 2019 and is project to grow to USD 15.9 billion by 2025. The growing need for thin and flexible batteries in IOT and medical devices, along with inherent advantages of micro batteries provides significant opportunities.