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nanoHUB-U Rechargeable Batteries L5.2: Architectures & Design Guidelines - The Reaction Zone Model

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Published on May 15, 2014

Table of Contents:
00:09 Lecture 5.2: The Reaction Zone Model
00:49 Untitled: Slide 2
04:07 Newman's Reaction Zone Model
06:55 Equivalent Circuit
08:19 Moving Boundary Concept
09:15 The Reaction Zone and Utilized Charge
12:22 The Voltage of the Battery
16:05 Results for "Ideal" LiMn2O4
18:08 How does it compare to the experiment?
19:04 Three Optimization Restrictions
20:38 Complete Charge Utilization Limit
22:55 Optimal Thickness and Porosity
24:44 Optimal values
27:17 Cut-Off Voltage Limit
28:00 Optimal Thickness and Porosity
28:59 Revised Optimal Values
29:42 Summary of Assumptions

This video is part of the nanoHUB-U course "Introduction to the Materials Science of Rechargeable Batteries" (http://nanohub.org/courses/imsb)

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.

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