Application of disc springs in battery energy storage

What types of springs are used in energy storage & harvesting applications?

In energy storage and harvesting applications, two key types of technical springs stand out: mechanical batteries (also known as mechanical capacitors), which use mechanical deformation to store electrical charge; piezoelectric transducers that convert mechanical stress into electrical charge through the process known as the piezoelectric effect.

Can mechanical spring systems provide energy storage in elastic deformations?

Energy storage in elastic deformations in the mechanical domain offers an alternative to the electrical, electrochemical, chemical, and thermal energy storage approaches studied in the recent years. The present paper aims at giving an overview of mechanical spring systems’ potential for energy storage applications.

What are the functions of elastic storage device using spiral spring?

The principal functions of elastic storage device using spiral spring are energy storage and transfer in space and time. Elastic energy storage using spiral spring can realize the balance between energy supply and demand in many applications.

Can mechanical springs be used for energy storage?

As far as mechanical energy storage is concerned, in addition to pumped hydroelectric power plants, compressed air energy storage and flywheels which are suitable for large-size and medium-size applications, the latest research has demonstrated that also mechanical springs have potential for energy storage application .

What is spiral spring energy storage?

Spiral spring energy storage harvests and stores random mechanical energy. Harvesting and storing energy is a key problem in some applications. Elastic energy storage technology has the advantages of wide-sources, simple structural principle, renewability, high effectiveness and environmental-friendliness.

What is the most common elastic energy storage device?

Spiral spring is the most common elastic energy storage device in practical applications. Humanity has developed various types of elastic energy storage devices, such as helical springs, disc springs, leaf springs, and spiral springs, of which the spiral spring is the most frequently-used device. Spiral springs are wound from steel strips [19, 20].