The DreamLiner used Lithium Cobalt rather than the Lithium iron that most of us use in our boats. According to an MIT review http://www.technologyreview.com/news/509981/grounded-boeing-787-dreamliners-use-batteries-prone-to-overheating/ the cobalt variety are more prone to thermal runaway.
"The chemistry—and safety—of lithium-ion batteries varies. According to GS Yuasa's website, the batteries it uses for Boeing's 787 use lithium cobalt oxide electrodes. These are known for high-energy storage capacity, but other battery chemistries, such as lithium iron phosphate, are more resistant to overheating. Because of safety concerns, many electric vehicle makers have shifted to alternative chemistries, sacrificing some energy storage capacity."
Many of us who raced last year in the Wye Island Electric Boat Marathon used Lithium batteries with very good results and no battery mishaps. If one stays below 1C with a good bms you should not have a problem.
Ned
On Aug 27, 2013, at 5:55 PM, william munger wrote:
Not all Lithium's are created equal, I would never put Lithium Ion in a boat or plane. LiFePo yes. Does anyone here understand why Boeing decided to use Lithium ion?
for all you lithium guys I have one word "DREAMLINER"
if Boeing with their resources could not make it work,what do you know that they don't? All dreamliners have been retrofitted to Ni-MH
mike
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