What metal is in electrodes in storage batteries?

Introduction

When it comes to storage batteries, electrodes play a crucial role in their functioning. Electrodes are the conductors through which electric current enters or leaves a storage battery. But what metal is used in these electrodes? In this article, we will explore the types of metals commonly used in electrodes in storage batteries.

Types of electrodes in storage batteries

Lead-acid batteries

Lead-acid batteries are the most common type of storage batteries and they use lead electrodes. These electrodes are made of a lead peroxide and sponge lead for the positive and negative electrodes respectively. The lead electrodes are essential for the chemical reactions that occur during the charging and discharging process of the battery.

Lithium-ion batteries

Lithium-ion batteries are gaining popularity due to their high energy density and long lifespan. The electrodes in lithium-ion batteries are typically made of lithium cobalt oxide for the positive electrode and graphite for the negative electrode. These electrodes enable the transfer of lithium ions between the positive and negative electrodes, allowing the battery to store and release energy efficiently.

Nickel-cadmium batteries

Nickel-cadmium batteries use nickel oxide hydroxide for the positive electrode and metallic cadmium for the negative electrode. These electrodes are designed to facilitate the reversible electrochemical reactions that occur during the charging and discharging process of the battery.

Conclusion

In conclusion, the type of metal used in electrodes in storage batteries varies depending on the specific type of battery. Lead, lithium, nickel, and cadmium are some of the common metals used in electrodes for different types of storage batteries. Understanding the role of these metals in the electrodes is essential for the proper functioning of storage batteries and ensuring their longevity.