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Mesostructure-performance relationships in batteries and fuel cells : challenging the dogma with multiscale computations and immersive visualization
Published on Dec 19, 20161992 Views
Optimized design of composite electrodes for batteries and fuel cells is recognized to be of crucial importance, in particular to reach automotive application expectations in terms of performance gain
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Chapter list
Mesostructure - performance relationships in batteries00:00
Laboratoire de reactivite et chimie de solides00:24
Theory01:41
Multiscale complexity in batteries03:32
Our multiscale modeling platform05:04
State-of-the-art mathematical modeling of rechargeable batteries05:50
1. Lithium - O2 batteries07:10
Lithium air batteries: practical issues07:28
Oxygen reduction reaction09:27
Solution phase vs. thin film orr mechanisms11:27
Messi12:19
Kinetic Monte Carlo model12:44
Nanopore (1/5)14:37
Nanopore (2/5)16:10
Nanopore (3/5)16:44
Nanopore (4/5)18:53
Nanopore (5/5)20:05
Carbon fiber (1/2)21:16
Carbon fiber (2/2)22:33
Porous electrodes in lithium-O2 batteries23:46
Continuum simulation of species transport25:28
Impact of the psd on the discharge curve27:06
Solution phase: O2 escape probability27:58
Solvent & architecture impacts on discharge28:29
Impact on charge?30:30
Impact of discharge products morphology on the charge process (1/2)31:05
Impact of discharge products morphology on the charge process (2/2) - 132:52
Impact of discharge products morphology on the charge process (2/2) - 234:25
2. Lithium-s batteries34:49
Lithium-sulfur batteries: motivation34:57
1D-continuum cell model35:42
Sulfur-based species transport - 136:48
Sulfur-based species transport - 238:11
Electrochemical & precipitation reactions - 139:12
Electrochemical & precipitation reactions - 239:39
Active surface area loss40:03
Heterogeneity of reactions at multiple pore scales41:09
Heterogeneity of reactions along the cathode thickness (1/2)41:54
Heterogeneity of reactions along the cathode thickness (2/2)43:08
Pristine Li-s cathode44:01
3. Redox flow batteries45:18
Storing energy from renewable sources45:24
Slurry-based redox flow batteries (SRFB)46:46
SRFB: fundamental challenges (1/2)47:57
Final words52:52
Modeling of batteries fabrication52:56
Teaching: using immersive virtual reality54:43
Acknowledgements57:00