Bio Battery (also known as Biobattery) is an energy-accumulated device that is motorized by organic compounds, usually glucose, like glucose in human blood. Many electrons and protons are released due to the breakdown of glucose by enzymes present in our body. Thus, bio batteries directly get energy from glucose by using enzymes present in the human body to break down glucose. An interesting fact has been extracted from new research which discloses how bacteria generate electricity when a protein in their cell membranes gets in touch with a mineral surface. Shewanella oneidensis** is marine bacteria that can develop electric currents when bared to heavy metals like iron and manganese. These proteins can transmit electrons transversely to a membrane at a rate faster enough so that the energy produced is sufficient so that bacteria can survive. The functioning of these bacteria will help scientists in making those bio batteries that could store energy for sensors in a remote environment.
Human blood and sugar glucose are considered as most priceless sources of power because they happen naturally, are easy to get and no harmful emissions are reproduced. Another interesting battery was developed that uses human urine as its fuel. The device’s size is like a credit card size and might form the source of economical, disposable disease testing kits. What makes it more valuable is that the battery and devices for testing are incorporated into one disposable chip**.
Related topic: Paper Battery
Bio-Battery Key aspects
Here are some key points about bio batteries:
- Working Principle: Bio batteries utilize biological catalysts, such as enzymes or microbes, to catalyze specific reactions that generate electrical energy. These catalysts facilitate the conversion of organic compounds, such as glucose or other biomass, into electricity.
- Enzymatic Bio Batteries: Enzymatic bio batteries employ enzymes as catalysts to oxidize the fuel source and produce electrons. The electrons are then captured and utilized to generate an electric current.
- Microbial Fuel Cells (MFCs): Microbial fuel cells are a type of bio-battery that uses bacteria or other microorganisms to generate electricity. The bacteria break down organic matter through a process called anaerobic respiration, releasing electrons in the process. These electrons can be captured by an electrode, creating a flow of electrical current.
- Advantages: Bio batteries offer several advantages. They can utilize abundant and renewable resources, such as glucose from organic waste or biomass. They have the potential for low-cost production and can be environmentally friendly compared to traditional batteries that rely on heavy metals or toxic chemicals.
- Limitations: Bio batteries also have limitations. The power output of bio batteries is typically lower compared to conventional batteries, which may restrict their use in applications requiring high power. They may also be sensitive to environmental conditions and require optimization to achieve stable and consistent performance.
- Applications: Bio batteries have a range of potential applications. They can be used in small-scale electronic devices, such as wearable sensors or medical implants, where a continuous or periodic energy supply is required. Bio batteries also have potential in remote or resource-limited areas where traditional power sources are scarce.
- Ongoing Research: The development and improvement of bio batteries are active areas of research. Scientists are exploring new catalysts, improving efficiency, and investigating the integration of bio batteries with other energy storage technologies to enhance their performance and practicality.
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