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Elon Musk: Boeing 787 battery fundamentally unsafe

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11–20 of 253 posts

Re: Elon Musk: Boeing 787 battery fundamentally unsafe

#11
Forbes is running an article [1], suggesting it is in Boeing/SpaceX/Tesla's goint best interested to prove/make safe lithium ion batteries. Reason being, they all have products that use them, and they should have a great reputation, and there should be zero stigma attached to them.

[1] http://www.forbes.com/sites/davidewalt/2013/01/29/why-elon-m...

Re: Elon Musk: Boeing 787 battery fundamentally unsafe

#12

While I have enormous respect for Elon Musk, I would hope that Boeing engineers have just as thorough an understanding of the workings and safety implications of Lithium-ion batteries. Though Tesla's engineering is admittedly much more focused around battery technology, Boeing has decades of experience with aircraft electrical systems.

I have enormous respect for Elon Musk, and he's right, large cells without thermal barriers between cells are dangerous.

Boeing doesn't have a "decade of experience" with Lithium-Ion batteries though. The particular type of batteries have an elevated risk profile, but are light weight. The 787 has a larger APU than previous aircraft, and requires a larger battery to start the APU.

These particular batteries are Lithium Cobalt Oxide. One of the sub-contractors, Securaplane, who made the battery controller/charger, had their factory destroyed by fire, after a battery malfunction in 2006.

Edit: Cessna had problems with their Lithium-Ion batteries in some Citations, and had to replace them with NiCADs in a emergency airworthiness directive.

Re: Elon Musk: Boeing 787 battery fundamentally unsafe

#13

Elon seems to really want to get involved in this. Make no mistake, Boeing and SpaceX are fierce competitors for government contracts with very dubious selection processes. I'm saying this because he is a businessman, not an engineer. He seems to be getting a lot of information about the 787s batteries inner workings when the number of airplanes and suppliers are very limited. Edit: I'm not trying to be cynical, but…

while not a PE he is no slouch, he has a bachelor's in physics

Re: Elon Musk: Boeing 787 battery fundamentally unsafe

#14

Elon seems to really want to get involved in this. Make no mistake, Boeing and SpaceX are fierce competitors for government contracts with very dubious selection processes. I'm saying this because he is a businessman, not an engineer. He seems to be getting a lot of information about the 787s batteries inner workings when the number of airplanes and suppliers are very limited. Edit: I'm not trying to be cynical, but…

My understanding is that Elon Musk, a physicist by education, is indeed an engineer and was very hands on in the engineering processes at SpaceX, so I'd assume he wasn't out of the technical loop that led to design decisions at Tesla.

Re: Elon Musk: Boeing 787 battery fundamentally unsafe

#15
post #5

While I have enormous respect for Elon Musk, I would hope that Boeing engineers have just as thorough an understanding of the workings and safety implications of Lithium-ion batteries. Though Tesla's engineering is admittedly much more focused around battery technology, Boeing has decades of experience with aircraft electrical systems.

It would appear that Boeing had a small oversight. Building a plane is not like building a car. There are different requirements. While some requirements overlap there are clear fundamental differences. Now, with that said, it could be that SpaceX and Tesla were allowed to focus more on batteries while Boeing had to improve jet engine efficiency as well as electrical battery usage.

SpaceX and Tesla try to keep as much of this in-house as possible, so they can maintain full oversight and make changes without unnecessary cost overhead.

Boeing had 10 layers of contractors involved in this SNAFU. WWED = What Would Elon Do.

Re: Elon Musk: Boeing 787 battery fundamentally unsafe

#16
post #10
post #7

Earlier quoted context omitted.

> This is a very smart move by Musk from a PR point of view. This is an awful PR move if he's wrong. I hope he's sure.

an MIT professor already backs up what he is saying, he is not on his own with his opinion

Not just any MIT prof-- Sadoway is an expert metallurgist and leading researcher on energy storage in batteries. The article is also incorrect: Sadoway is part of the Materials Science Engineering Department.

As an aside, his intro chemistry lectures are excellent, entertaining, and available online. http://ocw.mit.edu/courses/materials-science-and-engineering...

Re: Elon Musk: Boeing 787 battery fundamentally unsafe

#17
post #3

This is a very smart move by Musk from a PR point of view. By accusing Boeing's batteries of being fundamentally unsafe, he garners the maximum amount of trust from people who are concerned about battery safety, so that, when he immediately follows up with an explanation of why this couldn't happen on a Tesla, those very people are already leaning towards believing him. This goes over much better than attempting to d…

That makes me wonder what the next public and private PR moves should be for Boeing. My first guess is that their strategy should:

A) Mention the tradeoffs involved with any engineering project

B) Quickly accept blame instead of pushing it off to a supplier, a single employee and/or group (i.e., even if they have excellent reason and evidence for doing so)

C) Make known their official stance on Elon's technical assessment

I also think that they should first respond to Elon privately and later make a public statement--when they are ready. I happen to think they should make a public statement about what Elon's statement rather quickly. However, I realize that their executive staff and PR department may need some time to discuss this.

Because Elon is so "high-profile," if they don't handle this wisely, the press will give them two black eyes instead of one.

Re: Elon Musk: Boeing 787 battery fundamentally unsafe

#18

While I have enormous respect for Elon Musk, I would hope that Boeing engineers have just as thorough an understanding of the workings and safety implications of Lithium-ion batteries. Though Tesla's engineering is admittedly much more focused around battery technology, Boeing has decades of experience with aircraft electrical systems.

It's not necessarily Boeing's engineers. A lot of the 787 design (not just fabrication) was subcontracted out, so it's just as likely to have been whatever subcontractor had the combination of low bid and business connections to win the contract.

Ref: http://www.newyorker.com/talk/financial/2013/02/04/130204ta_...

Re: Elon Musk: Boeing 787 battery fundamentally unsafe

#19

Elon seems to really want to get involved in this. Make no mistake, Boeing and SpaceX are fierce competitors for government contracts with very dubious selection processes. I'm saying this because he is a businessman, not an engineer. He seems to be getting a lot of information about the 787s batteries inner workings when the number of airplanes and suppliers are very limited. Edit: I'm not trying to be cynical, but…

My understanding is that Elon Musk, a physicist by education, is indeed an engineer and was very hands on in the engineering processes at SpaceX, so I'd assume he wasn't out of the technical loop that led to design decisions at Tesla.

Maybe a little OT but:

Can you be considered an "ist" by having just a BS degree. That is, physicist, computer scientist, etc...

If no, what is the requirement? Masters or PhD?

Re: Elon Musk: Boeing 787 battery fundamentally unsafe

#20

Earlier quoted context omitted.

My understanding is that Elon Musk, a physicist by education, is indeed an engineer and was very hands on in the engineering processes at SpaceX, so I'd assume he wasn't out of the technical loop that led to design decisions at Tesla.

Maybe a little OT but: Can you be considered an "ist" by having just a BS degree. That is, physicist, computer scientist, etc... If no, what is the requirement? Masters or PhD?

You don't even need formal qualifications for those, just the actual skill, and then it's up to people to asses if you have them.
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