Energy conversion and storage systems

Why should energy conversion and storage devices be integrated?

The combination system of these two kinds of devices can make up for the defects of each other and make them offer better performance as power supply devices. Therefore, more attention has been paid to the integrated system of energy conversion and storage devices.

What are energy conversion and storage devices?

The related energy conversion and storage devices have also been widely concerned and developed rapidly in the last few decades. 1 - 4 The energy conversion device in a power system is responsible for collecting and converting the energy in the environment into easy-to-use electric energy.

What is the research on energy storage & conversion?

Currently, the research about energy storage and conversion is mainly focused on electrochemical energy storage devices (especially, supercapacitors and batteries) and solar energy conversion devices (mainly, photovoltaics and solar water splitting cells).

What is a multienergy conversion system?

This multienergy conversion method is an effective supplement to the existing single energy conversion system, and greatly improves the utilization rate of energy in the environment by collecting and converting more energy. Moreover, it is necessary to integrate energy devices with electric equipment and devices.

Why do we need energy storage and conversion system?

The development of energy storage and conversion system become more essential considering the increasing demand of energy due to the rapid change in global economy at the cost of environmental pollution through the irreversible burning of fossil fuel.

How to integrate solar energy conversion and storage units together?

The simplest way to integrate the energy conversion and storage units together is to connect them by wires. [21, 23] For example, Gibson and Kelly reported a combination of iron phosphate type Li-ion battery and a thin amorphous Si solar cell. The integrated system achieved an overall solar energy conversion and storage efficiency of 14.5%.