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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 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.