The long-anticipated fourth edition of Electrochemical Systems by John Newman and Nitash P. Balsara is now available.* The fourth edition updates all of the chapters, adds content on lithium battery electrolyte characterization and polymer electrolytes, and includes a new chapter on impedance spectroscopy. Topics covered include electrochemical theories as they relate to the understanding of electrochemical systems; the foundations of thermodynamics; chemical kinetics; transport phenomena including the electrical potential and charged specials; and how to apply electrochemical principles to systems analysis and mathematical modeling.

ECS thanks Drs. John Newman and Nitash Balsara, authors of Electrochemical Systems Fourth Edition, for generously speaking with us in December 2020.

(From left to right): Dr. John Newman and Dr. Nitash P. Balsara, Photo courtesy of