Рет қаралды 47,060
This video covers the thermal design and management for the 4680, how the tabless electrode helps, and why ribbon cooling is better. A battery pack is only as good as its weakst thermal link.
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Prediction of Thermal Issues for Larger Format 4680 Cylindrical Cells and Their Mitigation with Enhanced Current Collection
iopscience.iop.org/article/10...
Optimal cell tab design and cooling strategy for cylindrical lithium-ion batteries
www.sciencedirect.com/science...
Surface Cooling Causes Accelerated Degradation Compared to Tab Cooling for Lithium-Ion Pouch Cells
iopscience.iop.org/article/10...
Cell-matching and balancing (Battery University)
batteryuniversity.com/article...
Timeline
00:00 Intro
00:50 Why is Thermal Management Important?
01:09 Battery Pack // Weakest Link
02:08 Cell Matching & Battery Management Software
03:43 Battery Cell // Weakest Link
04:23 The 'Thermal Supply Chain'
05:40 Nissan Leaf vs Model S
06:05 Thermals and Form Factor
06:57 Cooling // How I got it Wrong
14:03 Role of the Tabless Electrode
18:48 Current Collector Plates
19:42 Summary
Intro Music by Dyalla: Homer Said