There will be the period of trials and errors with every new technology, but Boeing case is the most extreme. Please note that according to the company reports: Tesla Motors uses Panasonic's "next-generation battery cell based on this nickel chemistry and optimized specifically for electric vehicle quality and life."
"Security in any airplane is the paramount concern - we are very surprised to read John's findings. LCO batteries with LiCoO2 chemistry are the most aggressive choice for the battery, when Cobalt has the risk of being easily oxidised with the huge amount of energy released. We will be very surprised if it is the case with Boeing 787 Dreamliner - automakers started to move away from this chemistry long time ago."
"Batteries are provided by Panasonic. The two companies have developed a next-generation battery cell based on this nickel chemistry and optimized specifically for electric vehicle quality and life. These new cells will combine with Tesla’s proven EV battery expertise gained from more than 15 million customer miles driven in Tesla Roadsters and thousands of hours of cell and battery testing to create the most capable electric vehicle ever produced, the Tesla Model S."
John Voelcker: Boeing 787 Batteries Same As Those In Electric Cars? Umm, NO
Tesla's Musk calls Boeing 787 Dreamliner Batteries 'fundamentally unsafe'
"After offering to help Boeing with its lithium-ion battery problems, Elon Musk is somewhat raising the stakes. Musk, who heads both Tesla Motors and space exploration company SpaceX, has now called the batteries in the Boeing 787 "inherently unsafe" in an e-mail to trade publication Flightglobal.
There's a fair amount of science involved, but for simpletons like this reporter, Musk basically says the lithium cobalt oxide cells used in the 787 Dreamliner are packed too close together, so that if one cell catches fire, the entire battery pack may ignite in a chain-reaction type situation, which is never good at 30,000 feet. Musk goes on to point out that the cells used in both Tesla vehicles and SpaceX's space-launch rocket are smaller and separated from one another, so that any potential ignition is contained. Musk says offer to help but has so far been rebuffed.
About 50 Dreamliners were recently grounded because of two incidents, one a fire, involving the battery system. The US Transportation Safety Board and the Federal Aviation Administration are currently looking into the cause of the 787 problems."