A bio-battery is a liveliness storing device that is powered by organic compounds, usually being glucose, such as the glucose in human plasma. When enzymes in human bodies breakdown down glucose, several electrons and protons are unconfined. Open Circuit Voltage (V) is 3.5, 5.5, 7.5, and so on. Short Circuit Current (ma) is 100, 120, and 150. Power (mW) can be 1, 3, and 5. Applications of Bio-Batteries are Medical implants like pacemakers and insulin pumps and in disaster relief.

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Detailed Description for Bio-Battery

      A bio-battery is an energy storing device that is powered by organic compounds, usually being glucose, such as the glucose in human blood. When enzymes in human bodies break down glucose, several electrons and protons are released. Therefore, by using enzymes to break down glucose, bio-batteries directly receive energy from glucose. These batteries then store this energy for later use.This concept is almost identical to how both plants and many animals obtain energy. Although the batteries are still being tested before being commercially sold, several research teams and engineers are working to further advance the development of these batteries.


Similar to how human bodies convert food to energy using enzymes, bio-batteries use enzymes to convert glucose into energy.When glucose first enters the battery, it enters through the anode. In the anode the sugar is broken down, producing both electrons and protons.

Glucose → Gluconolactone + 2H+ + 2e−

These electrons and protons produced now play an important role in creating energy. They travel through the electrolyte, where the separator redirects electrons to go through the mediator to get to the cathode.On the other hand, protons are redirected to go through the separator to get to the cathode side of the battery.

The cathode then consists of an oxidation reduction reaction.This reaction uses the protons and electrons, with the addition of oxygen gas, to produce water.


O2 +4H+ + 4e− → 2H2O



There is a flow created from the anode to the cathode which is what generates the electricity in the bio-battery.The flow of electrons and protons in the system are what create this generation of electricity.


A significant advantage that bio-batteries have in comparison to other batteries is their ability to allow an instant recharge.In other words, through a constant supply of sugar, or glucose, bio batteries are able to continuously keep themselves charged without an external power supply. Bio batteries are also a source of non-flammable, and non-toxic fuel. This provides a clean alternative renewable power source.


Compared to conventional batteries, such as lithium batteries, bio-batteries are less likely to retain most of their energy.This causes a problem when it comes to long term usage and storage of energy for these batteries. However, researchers are continuing to develop the battery in order to make it a more practical replacement for current batteries and sources of energy.

Application of Bio-Battery:-Electronic devices,Medicine Defence purposes Fuel synthesis.

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