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A new type of biodegradable battery that uses probiotics could change the way we think about temporary electronic devices. Developed using water-soluble paper and beneficial microbes, this innovative biobattery is part of a growing field known as transient electronics—devices designed to function for a limited time and then safely disappear without harming the environment or the human body.
According to the press release, the battery, developed at Thomas J. Watson College of Engineering and Applied Science, is engineered to operate for up to 100 minutes before fully dissolving, making it ideal for short-term biomedical implants, disposable sensors, and other single-use electronic applications. The power source relies on a blend of 15 strains of commercially available probiotic bacteria. When deployed, these microbes initiate a small but measurable flow of electricity, generating around 4 µW of power with an open-circuit voltage of 0.65 volts.
One of the key advantages of this system is its biosafety. Traditional batteries—especially those used in compact medical devices—often contain heavy metals or corrosive materials that can pose risks if they degrade inside the body or in nature. In contrast, this probiotic-based biobattery breaks down into benign components, releasing only the same microbes already common in supplements and fermented foods.
The researchers demonstrated that the battery’s power duration can be controlled by adjusting the device length or using pH-sensitive encapsulation. This flexibility allows it to deliver electricity for as little as 4 minutes or over an hour and a half, depending on application needs.
To enhance performance, the team modified the electrode surface with polymers and nanoparticles, creating an environment that can boost electricity production.
This development not only marks a milestone in bioresorbable electronics but also opens new possibilities for eco-friendly energy solutions in many industries where devices must work briefly, safely, and without leaving a trace.
