The core concept being addressed refers to enabling a small electronic device, specifically a type of postage stamp with integrated circuitry, without relying on a conventional chemical battery as a power source. This involves investigating alternative energy harvesting and storage mechanisms to energize the stamp’s functionalities, such as data transmission or sensing. An example could be a stamp that uses ambient radio waves to gather energy and then transmit information about the parcel’s location.
The significance of powering stamps and similar small devices without batteries lies in reduced environmental impact, lower maintenance requirements, and potential cost savings. Batteries contain materials that pose environmental risks during production and disposal. Historically, battery-powered devices required periodic replacements, leading to waste and inconvenience. Utilizing battery-free solutions addresses these concerns, promoting sustainability and long-term operational efficiency.