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Boeing (BA) is expected to today present a redesign of its 787 batteries to stop them...

  • Friday, February 22, 1:57 AM ET
    Boeing (BA) is expected to today present a redesign of its 787 batteries to stop them overheating as it looks to persuade the FAA to allow the Dreamliners to resume passenger flights, hopefully next month. CEO Jim McNerney tells the WSJ that Boeing is confident it has identified "all probable causes" of the battery failures. United Airlines (UAL), though, has taken the 787 off nearly all its schedules through June 5. And remember the fuel leaks on a Japan Airlines 787? Investigators reckon the cause was the coating of a mechanism that controls the movement of fuel between tanks.
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This news story has 4 comments:

  •  
    just revove the Lithium-Ion Batteries from the 787
    22 Feb, 02:54 PM Reply Like
  •  
    thomas - which battery do you suggest replace the Lithiums??
    4 Mar, 12:55 PM Reply Like
  •  
    the battery same one used on the 777

    the us miltary or any other boeing aicrafts used these ion batteries

    When a Cessna business jet equipped with lithium ion batteries caught fire in 2011 while it was hooked up to a ground power unit, Cessna and the Federal Aviation Administration moved swiftly to address the safety issues involved.
    First the manufacturer advised owners of CJ4 aircraft to replace the lithium ion batteries in the plane with older technology nickel-cadmium or lead-acid batteries, and the FAA a few days later issued an airworthiness directive making those replacements mandatory.
    =================

    alone with the two batteries are are 4 others LRU's
    http://bit.ly/YeeqOL

    The All Electric Boeing 787

    http://bit.ly/YeeqOJ

    http://bit.ly/XRkSJl

    http://bit.ly/X5X4hU.
    /http://bit.ly/XRkSJn.

    Karl Stephan has worked in the industry as a consulting engineer. He currently teaches college-level engineering courses at Texas State University in San Marcos, Texas. This blog was originally posted at http://bit.ly/XUETeZ.

    http://bit.ly/X5X4hU


    There is NO Fire Extinguisher that can put out an Lithium-ion batteries fire!
    5 Mar, 04:57 PM Reply Like
  •  
    thomas - the NiCd's may not do the required duty cycle of the 787. Maybe Boeing should consider a Pb-acid and Axion PbC combination: one for deep discharge and slow recharge (Pb-acid; true and blue; certified; heavy (but what's a seat or two of weight penalty versus no threat of fire, and one that can be snuffed); and one for shallow, high frequency discharges and high rates of recharge, with long cycle life, the Axion PbC (not certified - but has none of the NiCd memory and charge/discharge negative characteristics; susceptible to self-discharge [hence the need to couple with Pb-Acid if the battery is going to be depended upon after weeks of no use and before recharge], but great for cycling up and down crazily, which the Li is good for as well as being lighter, along with the burn capability).
    8 Mar, 02:37 PM Reply Like
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