Tesla CEO Elon Musk Says Boeing's 787 Dreamliner Battery is Unsafe
January 30, 2013 12:44 PM
comment(s) - last by
He offered his help to Boeing, but the company declined
Boeing's 787 Dreamliner jet has had a lot of troubles lately --
namely with its batteries
-- and the last person the aerospace company likely wanted advice from was competitor Elon Musk.
Musk, the CEO of automaker Tesla and private space transport company SpaceX, recently told
that the 787 Dreamliner's batteries are "inherently unsafe." His company SpaceX competes with the Boeing/Lockheed Martin partnership, United Launch Alliance, in the aerospace sector.
"Unfortunately, the pack architecture supplied to Boeing is inherently unsafe," said Musk.
"Large cells without enough space between them to isolate against the cell-to-cell thermal domino effect means it is simply a matter of time before there are more incidents of this nature. Moreover, when thermal runaway occurs with a big cell, a proportionately larger amount of energy is released and it is very difficult to prevent that energy from then heating up the neighboring cells and causing a domino effect that results in the entire pack catching fire."
However, Mike Sinnett, Boeing's 787 chief project engineer, defended the design and development of the batteries.
"I design a cell to not fail and then assume it will and then ask the next 'what-if' questions," said Sinnett. "And then I design the batteries that if there is a failure of one cell it won't propagate to another. And then I assume that I am wrong and that it will propagate to another and then I design the enclosure and the redundancy of the equipment to assume that all the cells are involved and the airplane needs to be able to play through that."
Musk's Tesla uses batteries fueled by lithium cobalt oxide, which is what Boeing uses for the 787. Musk understands that these batteries have highly flammable tendencies, and even offered his help to Boeing in its construction, but Boeing declined.
"They [Boeing] believe they have this under control, although I think there is a fundamental safety issue with the architecture of a pack with large cells," said Musk. "It is much harder to maintain an even temperature in a large cell, as the distance from the center of the cell to the edge is much greater, which increases the risk of thermal runaway."
In a recent report by
The New York Times
, it was discovered that Boeing knew about the battery fire issues in the 787 before this month's problems occurred, which grounded the jets in the U.S., Japan and India.
The report said that Japanese airline All Nippon Airways (ANA) replaced 10 787 batteries from May to December of 2012. Reasons included an unexpectedly low charge in the main battery, batteries that failed to start normally and one battery showing an error reading.
Japan Airline (JAL) also had "several cases" where it had to replace the 787's batteries before the issues that occurred this month, but it didn't disclose an exact number.
The airlines said they reported the incidents' to Boeing, but Boeing felt they didn't need to alert safety regulators because it was not considered a safety issue, but rather "within the scope of regular maintenance" carried out by airline crews.
It was also recently discovered that the Japanese government
loosened safety regulations for the 787 Dreamliner
back in 2008 in an effort to speed up the aircraft's deployment within the country.
This article is over a month old, voting and posting comments is disabled
Public Relations Nightmare Indeed
1/30/2013 3:17:22 PM
This is quickly becoming a real problem for Boeing. Everyday that passes without a plan or cause just makes it worse and worse. Boeing needs to ASAP declare
1.). They are designing a new "safer" battery and give an estimate when it will be ready
2.). They have a proposed plan on returning the 787 to the sky in the interim (even if it means removing each battery before flight and putting it in freezer!)
I understand the Japanese supplier wouldn't admit the battery is unsafe and Boeing would not want to place the blame directly on a Japanese supplier give who has ordered the 787, but as time passes more people like Elon Musk will come out of the woodwork and offer random suggestions which makes Boeing appear more and more foolish
"It looks like the iPhone 4 might be their Vista, and I'm okay with that." -- Microsoft COO Kevin Turner
Japan Loosened Safety Regulations for Boeing 787 Dreamliner in 2008
January 28, 2013, 11:31 AM
Investigation of 787 Dreamliner Issues to Focus on Batteries
January 18, 2013, 1:13 PM
Creationists are Mad About Google Doodle Depicting Evolution
November 24, 2015, 8:48 PM
DHS and TSA: Whoops, We Missed That 73 Airport Employees May be Terrorists
November 19, 2015, 2:16 PM
Star Wars Spinoff Film "Rogue One", Theme Park Attractions Announced
August 17, 2015, 12:20 PM
SpaceX Falcon 9's Seventh Supply Mission to ISS Ends w/ Fiery Stage 1 Explosion
June 28, 2015, 1:10 PM
Cool Science Video: Glowing Millipede Prowls the Nevada Desert
May 18, 2015, 12:00 PM
Newly Discovered Costa Rican Glass Frog is Kermit's Doppelgänger
April 22, 2015, 11:26 AM
Most Popular Articles
Top 5 Smart Watches
July 21, 2016, 11:48 PM
Free Windows 10 offer ends July 29th, 2016: 10 Reasons to Upgrade Immediately
July 22, 2016, 9:19 PM
Latest Blog Posts
Sceptre Airs 27", 120 Hz. 1080p Monitor/HDTV w/ 5 ms Response Time for $220
Dec 3, 2014, 10:32 PM
Costco Gives Employees Thanksgiving Off; Wal-Mart Leads "Black Thursday" Charge
Oct 29, 2014, 9:57 PM
"Bear Selfies" Fad Could Turn Deadly, Warn Nevada Wildlife Officials
Oct 28, 2014, 12:00 PM
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
More Blog Posts
Copyright 2016 DailyTech LLC. -
Terms, Conditions & Privacy Information