An Overview on the Development of Electrochemical Capacitors and Batteries - Part I.

An Overview on the Development of Electrochemical Capacitors and Batteries - Part I. An Acad Bras Cienc. 2020;92(2):e20200796 Authors: Martins VL, Neves HR, Monje IE, Leite MM, Oliveira PFM, Antoniassi RM, Chauque S, Morais WG, Melo EC, Obana TT, Souza BL, Torresi RM Abstract The Nobel Prize in Chemistry 2019 recognized the importance of Li-ion batteries and the revolution they allowed to happen during the past three decades. They are part of a broader class of electrochemical energy storage devices, which are employed where electrical energy is needed on demand and so, the electrochemical energy is converted into electrical energy as required by the application. This opens a variety of possibilities on the utilization of energy storage devices, beyond the well-known mobile applications, assisting on the decarbonization of energy production and distribution. In this series of reviews in two parts, two main types of energy storage devices will be explored: electrochemical capacitors (part I) and rechargeable batteries (part II). More specifically, we will discuss about the materials used in each type of device, their main role in the energy storage process, their advantages and drawbacks and, especially, strategies to improve their performance. In the present part, electrochemical capacitors will be addressed. Their fundamental difference to batteries is explained considering the process at the electrode/electrolyte surface and the im...
Source: An Acad Bras Cienc - Category: Science Authors: Tags: An Acad Bras Cienc Source Type: research