Chapter 1

Electrochemical cells for medium- and large-scale energy storage

fundamentals

W. Wang1; X. Wei1; D. Choi1; X. Lu1; G. Yang2; C. Sun2    1 Pacific Northwest National Laboratory, Richland, WA, USA2 UniEnergy Technologies, LLC, Mukilteo, WA, USA

Abstract

This chapter provides a comprehensive overview of the general fundamentals of electrochemical cells. During operation, the battery processes involve electron transfer at the electrode-electrolyte interface and are closely associated with the electrical double layer that affects the kinetics of electrode reactions. Although the theoretical cell potential of a battery is governed by the Nernst equation, the overpotential always exists in the actual operation of practical batteries. ...

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