FLEXIBLE PIEZOELECTRIC ENERGY HARVESTING TECHNOLOGY FOR WEARABLES
Energy Harvesting Wearable Tech
EHWTECH is dedicated to the use of piezoelectricity which stands to reduce, or even eliminate, the need for frequent charging of devices and batteries. Consumers will no longer be burdened with having to be near an electrical outlet, which will in turn conserve electricity. As a result, wearable devices and more efficient batteries will have longer usable lives. This will also reduce the environmental hazards presented by the frequent disposal of batteries and electrical components into landfills.
- Evolving from body-worn fitness tracking devices to multifunctional sensors
- Heart rate
- Calories burned
- Sleep patterns
- Posture
- Mental health
- Sun exposure
- Now worn almost anywhere on the body
- Continuously monitor our body signals
PROBLEMS
OTHER PIEZO METHODS
Ceramics
Bulky
Not-flexible
Expensive
Lead
Toxicity
Not-flexible
Expensive
THE OPPORTUNITY
What if you could power these devices just by wearing them?
Self-Winding Watch
OUR SOLUTION
Our solution is a biomechanical energy harvesting technique using a new generation of piezoelectric materials which convert mechanical energy into electrical energy. One of the most obvious examples of energy harvesting are solar panels. They allow us to scavenge power from an ambient heat and light sources. In the same way our method exploits the piezoelectric effect of some materials (crystals, ceramics and polymer films) which produce electricity when subjected to mechanical stress, pressure, or other external force. For wearable devices the most common energy source are body movements: the arms and legs when walking, the chest during breathing, and even the beating of the heart. A single breath, for example, generates about a watt of power (0.82). When you walk across a room, each step can produce about 70 watts worth. To put this into perspective, a cardiac pacemaker only needs 50 microwatts to work for 7 years
EHW is a thin, multi-layered piezoelectric composite of spin cast PDVF, nanofiber electrodes, and silver coating. This composite allows for: Superior energy harvesting performance, long-term mechanical stability, Increased piezoelectric output voltage. Spincasting allows for accelerated conductivity through increased surface area. Since our piezoelectric composite is based on PDVF and carbon-based nanoparticles it is easy to produce and easy to scale. In summary, we have a multilayered composite film that creates and stores current generated from walking, breathing or movement for an excellent performance output. The piezoelectric composite is a top and bottom layer of electrodes, made of silver nanowires, spin coated on top of the PVDF nanofibers and encased in a layer of silver.
COMPETITIVE ADVANTAGES
Durability
Flexibility
Suitable for Wearables
Innovation
Quality
Cost-Effectiveness
Our Team
Saleem Javed
CEO
Ohoud Abobaker Salim Bashrahil
COO
Isha Kaur Uberoi
CMO
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