nanoHUB-U Rechargeable Batteries L4.3: Interfacial Reactions - Dendrites in Rechargeable Batteries





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Published on May 8, 2014

Table of Contents:
00:09 Lecture 4.3: Dendrites in Rechargeable Batteries I
00:35 Field Failure of a Notebook Battery Pack
01:45 Cross-Section of M2 Cell (Sister Cell)
02:26 Cross-Section of M2 Cell
02:53 Cross-Section of M2 Cell
03:43 Lithium Dendrites
05:19 Tip-Controlled Dendritic Growth
06:20 Base-Controlled Dendritic Growth
08:13 A Controlled Experimental System
10:28 Dendrite Nucleation in EC:DMC
11:48 Dendrite Nucleation in N1114-Tf2N
12:19 Dendrite Nucleation in Na+N1114-Tf2N
13:20 Dendrite Nucleation in Na+N1114-Tf2N
13:59 Dendrite-SEI Interactions
15:29 Dendrite Growth Mechanisms
16:19 In situ lithium intercalation
17:12 Sequence of four optical microraphs
18:13 Li plating on an MCMB electrode
18:37 An in situ Experiment
19:17 Incubation
20:52 Theoretical Description of Dendrite Formation during Charge
21:59 Important Results of The Models

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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