Introduction to Diffuse Charge in Electrolytes

How do ions move and organize themselves near charged surfaces in modern energy storage systems? Understanding the behavior of diffuse charge in electrolytes is essential for designing efficient batteries, supercapacitors, and fuel cells. This text-only course breaks down complex electrochemical transport phenomena into clear, accessible concepts. You will start with the fundamental definitions of electrochemical systems before progressing to the mathematical models that describe ion distribution and fluid interfaces. Learn to analyze electrostatic fields, solve transport equations, and evaluate real-world electrochemical energy storage mechanisms. What you will learn: Understand the core principles of electrochemical double layers and diffuse charge; Apply the Poisson-Boltzmann equation to model ion distribution near charged surfaces; Analyze the dynamics of charge transport and ion migration in liquid electrolytes; Evaluate the physical limitations of classical models in modern high-concentration systems; Practice calculating electrostatic potential and charge density profiles. This course begins with basic terminology and governing equations, then guides you through practical analytical techniques step-by-step. Designed specifically for beginners, this course requires no advanced prior background in chemical engineering or electrochemistry. Start reading today to build a strong foundation in electrochemical energy systems.