Replies to post #101974 on Tesla Inc (TSLA)

[boston745]

Tesla sedan fire causes road closure on Ennis Joslin Road

CORPUS CHRISTI, Texas — A single-vehicle crash involving a Tesla sedan resulted in a vehicle fire and road closure on Ennis Joslin Road near Alameda Street this morning, according to the Corpus Christi Police Department.

The electric vehicle caught fire after the driver lost control and crashed into a residential front yard. Fire crews responded to the scene immediately.

According to witness accounts, the Tesla sedan veered off the roadway and came to rest in a neighbor's front yard.

This is an odd one based on what is described. Usually when Teslas suddenly veer off the road they keep going until they hit something. However according to information provided its like the batteries were experiencing thermal runaway leading to sudden loss of power resulting in the Tesla coming to a rest on the front yard. There is no mention of why the driver lost control or what could have caused this fire leading to the only logical collusion that EMF lead to thermal runaway in the batteries. Did the EMF also cause the sudden veering or was it a power surge as a result of the batteries experiencing thermal runaway?

https://www.kristv.com/news/local-news/in-your-neighborhood/corpus-christi/tesla-sedan-fire-causes-road-closure-on-ennis-joslin-road

bullish indication is meant to be ironic.

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How does EMF cause lithium batteries to experience thermal runaway and thus spontaneously combust? One of two main ways:

#1 - Overcharge/Discharge

With various impressed external magnetic field intensities an effect was noticed on the charge and discharge curves as well as the charge and mass concentrations within the batteries. With the two-dimensional model starting from 0mT and going to 1mT had the effect of discharging the battery faster and charging the battery faster. With the two-dimensional model starting from 1mT and going to -1mT had the effect of charging the battery faster. In either case an effect on the various characteristics of the battery were studied. With the experiments conducted on the two types of batteries the effect was more profound than subtle. Discharge times were twice as fast and charge times were equally
affected. With the smaller batteries they all generally charged faster under the presence of a magnetic field due to more uniform penetration. In the presence of the field they also discharged faster. The larger batteries would not see the same uniform penetration because only a small area of the battery sees the center of the coil it is placed on

In this dissertation, they found that external magnetic fields significantly increased charge and discharge rates in individual lithium battery cells; like shown in the following image. They also found that smaller batteries were impacted to a greater degree than larger ones. This is likely a reason Tesla is switching to larger battery cells in addition to employing magnetic attenuating honeycomb sandwich battery pack.

Thermal Runaway of Lithium-Ion Batteries Triggered by Electromagnetic Interference
https://ieeexplore.ieee.org/document/9025761

https://ars.els-cdn.com/content/image/1-s2.0-S0378775320302172-fx1_lrg.jpg

#2 - Stimulation of Dendrite Growth

Thermoelectric current causes asymmetric growth pattern of dendrites.

thermoelectromagnetic convection occurs in the vicinity of the solid-liquid interface, and vortices are generated between dendritic arms. It is shown that the thermoelectromagnetic convection has a major influence on dendritic morphology.

Quote Sources:

#1:https://digitalcommons.njit.edu/theses/1743

#2:https://www.sciencedirect.com/science/article/abs/pii/S001793101930225X