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About this book

This brief deals with various forms of supercapacitors starting from traditional carbon based supercapacitors to advanced next generation hybrid supercapacitors. The primary focus is to investigate the successive evolution in the core components of a typical supercapacitor which will bring significant observations regarding their feasibility and overall impact on the charge storage capacity so as to reach at par with the current battery technology. The authors present a critical review of the current collectors, electrode materials and electrolytic components which have distinctive impact on both the power and energy density of a supercapacitor. Emerging trends in the fabrication of hybrid supercapacitor technology bring together the exceptional power density of a double layer capacitor and energy density of a rechargeable battery, which promises a brighter future for the electrical energy storage system.

Table of Contents


Chapter 1. Introduction

The storage of energy for future requirements is an ongoing task in the current research era. Therefore many of the storage devices have been formulated. Besides others, the supercapacitors emerges much more attention because of their ease of fabrication, charge storage mechanism and better operational durability etc. This chapter contains a brief discussion on the emergence of energy storage systems, the dominance of supercapacitors over other storage systems and a broad classification of supercapacitors basing on their charge storage mechanism/fabrication. Moreover the revolutionary changes in the storage system (from capacitor to supercapacitor) has been presented to a glimpse of fundamental idea to the readers.
Aneeya K. Samantara, Satyajit Ratha

Chapter 2. Historical Background and Present Status of the Supercapacitors

After the invention of supercapacitors, so many modifications in their fabrication process has been incorporated keeping in mind for commercialization toward practical application. Not only the design but also more emphasis has been given on the development of active electrode materials to achieve better charge storage performances. Therefore, the background of supercapacitor and their current status has been discussed in this chapter.
Aneeya K. Samantara, Satyajit Ratha

Chapter 3. Components of Supercapacitor

Although the components of supercapacitors and their fabrication process are similar to that of batteries, but the SCs are categorized according to the charge storage mechanisms. The dominance properties of SCs (like specific power, long life time, and quick charge/discharge process etc.) over the batteries strongly depends on the active and passive components used. In this chapter the development of different components of SCs, their role in charge storage and their synergistic effect for the durability of the SC device has been incorporated.
Aneeya K. Samantara, Satyajit Ratha

Chapter 4. Asymmetric and Hybrid Supercapacitor

Higher energy/power of a supercapacitor device relay on different fundamental principles like ion diffusion and electron conduction within the electrode materials. To achieve both the characteristics in a single/pair of materials is a challenging task and probably can be achieved by integrating the pseudocapacitive and EDLCs in a single supercapacitor device. In this chapter, a detailed discussion on the selection of electrode materials and their integration in asymmetric as well as hybrid supercapacitor has been provided.
Aneeya K. Samantara, Satyajit Ratha

Chapter 5. Trend and Scope Beyond Traditional Supercapacitors

Many effort has been devoted to develop efficient active (electrode materials, electrolytes etc.) as well as passive (current collector, separator, binder etc.) components for supercapacitor device fabrication. Also, a proper integration of electrodes in a device is needed for improved energy storage performance. Though few works has already been carried out, but still opportunities are there to work in the energy storage systems. In this chapter, summary of the book and scopes to work for betterment of charge storage in supercapacitors has been presented.
Aneeya K. Samantara, Satyajit Ratha
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