Re: What are the reasons why you wouldn't buy an EV today? Quote:
Originally Posted by srini1785 My friend, you got security confused with safety. Airlines don't allow batteries on the cabin due to security issues rather than a fire hazard. However, the same airlines do allow you to transport them in luggage. I really don't think they have attendants sitting in the belly of an airplane anticipating a fire. Learned members can comment. |
I am learned in this matter and I am a member of this forum But since you doggedly won't believe me, please take a deep breath, forget that I'm the messenger, and do read these links- https://thepointsguy.com/news/overhe...ng-down-plane/ https://www.faa.gov/news/fact_sheets...m?newsId=23054
Airlines don't take Lithium batteries in checked in baggage due to fire risks. They make you carry it in cabin luggage so that when (and not if) the batteries begin to smoulder, they can instantly put it out. You've got it completely backwards! Too many aircraft have had to take emegency landings due to smoking batteries in the baggage hold. Quote:
Again, courier companies also dont ship anything that goes " tik tok tik tok " does that mean that clocks are a safety hazard?.
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We can go round and round in circles with this line of argument. Quote:
Case in counter point # 3 : A ICE powered volvo bus got locked out and exploded in flames in gujrat or mumbai (i don't remember) killing all those inside. By that logic would you say that present day ICE powered bus / car are equally unsafe?.
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We can safely assert that ICE vehicles don't burst into flames just because their tanks are filled, or when parked in the hot sun or when you bump their undercarriages on humps.
You can't say either of these things about an electric car. Quote:
A similar incident occurred when a ICE car owner did not switch off the car and was filling it up in a fuel bunk. Several videos on the internet. Speaking of which you can also try pushing a lighted cloth through the fuel inlet and check if any of our ICE powered cars are " Safe".
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You don't just take a lighted match near petroleum. Period. Quote:
Sure i will believe that gravity does not exists if proven properly in a lab backed by sound scientific research. A couple of guys with a charging station, pyrometer and a hammer does not convince me.
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Then you should again take a deep breath, forget that I'm the messenger, let go of your predilections and read through this scientific report - https://www.futurity.org/lithium-ion...tions-2188572/ Quote: Current Li-ion batteries are susceptible to catastrophic fire and explosion incidents—most of which arrive without any discernible warning—because they are built with flammable and combustible materials.
Airlines banned the Samsung Galaxy Note7 phones as a result of this danger, and the Navy prohibited e-cigarettes on ships and submarines as a direct response to the need to reduce the devices’ flammability.
With these batteries emerging as the energy storage vehicle of choice for portable electronics, electric vehicles, and grid storage, these safety advancements mark a significant step forward in transforming the way Li-ion batteries are manufactured and how consumers use them in electronic devices.
In research published in the journal Chemical Communications, researchers detail their latest discovery: a new class of “water-in-salt” and “water-in-bisalt” electrolytes—referred to as WiS and WiBS, respectively—that, when incorporated in a polymer matrix, reduces water activity and elevates the battery’s energy capabilities and life cycle while ridding it of the flammable, toxic, and highly reactive solvents present in current Li-ion batteries.
It’s a safe, powerful alternative, the researchers say.
“Li-ion batteries are already a constant presence in our daily lives, from our phones to our cars, and continuing to improve their safety is paramount to further advancing energy storage technology,” says Konstantinos Gerasopoulos, senior research scientist and principal investigator of Johns Hopkins University’s Applied Physics Laboratory. “Li-ion battery form factors have not changed much since their commercialization in the early 1990s; we still use the same cylindrical or prismatic cell types. The liquid electrolyte and required hermetic packaging have a lot to do with that,” Gerasopoulos says.
“Our team’s efforts have generally been focused on replacing the flammable liquid with a polymer that improves safety and form factor. We are excited about where we are today. Our recent paper shows improved usability and performance of water-based flexible polymer Li-ion batteries that can be built and operated in open air.”
Additionally, the new approach further improves the damage tolerance initially demonstrated with the team’s flexible battery in 2017.
“The first generation of flexible batteries were not as dimensionally stable as those we are making today,” Gerasopoulos says.
With this latest benchmark reached, the researchers continue to work on further advancements of the technology.
“Our team is continuously improving the safety and performance of flexible Li-ion batteries,” says Jeff Maranchi, the program area manager for materials science at APL.
“We have already achieved further discoveries building upon this most-recently reported work that we are very excited about. We hope to transition this new research to prototyping within the year.”
| Why would the above scientific breakthrough in Lithium battery tech be such a big deal if they weren't safe already? Current Lithium ion battery tech is unsafe.
If you run your new Hyundai Kona over a hump and if you damage the battery's structural integrity, you will die.
I rest my case.
Last edited by locusjag : 23rd October 2019 at 13:39.
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