Electrochemical Energy Storage Product Introduction

1. Introduction Electrochemical energy storage covers all types of secondary batteries. Batteries convert the chemical energy contained in its active materials into electric energy by an electrochemical oxidation-reduction reverse reaction. At present batteries are produced in many sizes for wide spectrum of applications.

Modern electrochemical energy storage devices include lithium-ion batteries, which are currently the most common secondary batteries used in EV storage systems. Other modern electrochemical energy storage devices include electrolyzers, primary and secondary batteries, fuel cells, supercapacitors, and other devices.

Electrochemical energy storage/conversion systems include batteries and ECs. Despite the difference in energy storage and conversion mechanisms of these systems, the common electrochemical feature is that the reactions occur at the phase boundary of the electrode/electrolyte interface near the two electrodes .

Electrochemical batteries consist of electrochemical cells that convert stored chemical energy into electrical energy. (Source: energyfaculty.com) Rechargeable batteries are one of the oldest technologies for electrical energy storage (EES) systems, they are extensively used for daily needs and in numerous industrial applications.

For electrochemical energy storage, the specific energy and specific power are two important parameters. Other important parameters are ability to charge and discharge a large number of times, to retain charge as long time as possible and ability to charge and discharge over a wide range of temperatures.

This U.S. DRIVE electrochemical energy storage roadmap describes ongoing and planned efforts to develop electrochemical energy storage technologies for electric drive vehicles, primarily plug-in electric vehicles (PEVs) and 12V start/stop (S/S) micro-hybrid batteries.