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Published on May 15, 2014
Table of Contents: 00:09 Lecture 5.5: Week 5 Summary 00:19 Electrical and Ionic Conductivity 01:47 Types of Electrolytes 02:48 Types of Electrolytes 03:57 Main Salt Additives 04:45 Moving Boundary Concept 05:19 The Reaction Zone and Utilized Charge 06:11 The Voltage of the Battery 07:37 Results for "Ideal" LiMn2O4 08:35 Classic Design Drawbacks 09:38 Ultra High Energy Density Designs 10:10 Dual Scale Porosity 10:41 3D Battery Architectures 11:36 More 3D Battery Architectures 12:30 Self-Organizing Batteries 13:27 Semi-Solid Flow Battery 14:14 Interdiffusion of Charged Species 14:45 Electrical and Ionic Conductivity 15:17 The Difficulty of Putting Everything Together 16:16 Porous Electrode Theory Assumptions 17:05 Modified Kinetic Equations 18:09 Modified Kinetic Equations 18:51 Modified Kinetic Equations 20:31 Voltage-Capacity Plot 22:00 What did we learn?
This course will provide an introduction to the fundamentals behind the equilibrium and time-dependent response of existing and emerging chemistries of Li-ion battery materials. Effects of material selection and processing on the performance and reliability are presented as a means to develop conceptual guidelines to understand and improve battery designs. Example applications such as intercalation, SEI, and dendrite growth are presented. Integration of experimental microstructural aspects to coarse-graining measured properties, such as porosity, tortuosity and its associated reactivity, and classic and emerging battery architectures are presented. Principles summarizing the response of battery architectures are formulated and applied to propose battery design guidelines, to review existing porous electrode theory descriptions, and to summarize the current state-of-the-art of battery technology and its associated metrology.