Conversion is one of the main ways batteries store energy. It is a fundamentally different energy storage mechanism from intercalation which comes with its own advantages and challenges. Read more about conversion here!

Understanding overpotential is a beginner's guide to why batteries aren't perfect. Learn about what overpotential is, the sources of overpotential, and factors that worsen it.

Understand how the transference number impacts battery performance. Learn why a high transference number is crucial for efficient ion transport, and how to measure it.

Energy density and power density are the two key metrics that define battery performance. This post breaks down what they mean, how they're calculated, and the engineering tradeoffs involved in optimizing both

Every electrochemical system has stored energy tied up in the redox reactions happening within it. The Nernst equation connects that stored energy to a measurable parameter, voltage. More specifically, it shows how voltage evolves as a reaction proceeds and the system's composition changes. What Drives the Reaction? Redox reactions involve the transfer of electrons between chemical species. Whether that transfer happens spontaneously or needs a push depends on which direction

Understand what the Solid Electrolyte Interface (SEI) is, it's function, and the properties that constitute a good SEI layer in Li-ion batteries.

Learn about how the intercalation mechanism stores and releases energy in battery electrode crystal structures.

An explanation of the N to P ratio, and the implications of having an N/P less than 1 versus greater than 1 in lithium-ion batteries.

Understand the difference between conduction current and displacement current, and how the Ampère-Maxwell law ties it all together

Discover what an electric field is and how it influences charged particles.

A glossary of relevant e-chem words and terms