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Altair Nanotechnologies, Inc. Message Board

  • tactlessforever tactlessforever Jan 16, 2013 12:11 PM Flag

    Dreamliner grounded bec Li Ion batteries

    TOKYO (AP) -- Japan's two biggest airlines grounded all their Boeing 787 aircraft for safety checks Wednesday after one was forced to make an emergency landing in the latest blow for the new jet.
    All Nippon Airways said a cockpit message showed battery problems and a burning smell was detected in the cockpit and the cabin, forcing the 787 on a domestic flight to land at Takamatsu airport in western Japan.
    It said a later inspection of the plane found leaking electrolyte and burn marks around the main battery, located in an area below the cockpit.
    The 787, known as the Dreamliner, is Boeing's newest and most technologically advanced jet, and the company is counting heavily on its success. Since its launch, which came after delays of more than three years, the plane has been plagued by a series of problems including a battery fire and fuel leaks. Japan's ANA and Japan Airlines are major customers for the jet and among the first to fly it.
    the article goes on to say GS YUASA ... a Japan company ... that makes the lithium ion batteries that caught fire and leaked electrolyte ... had no comment.
    perhaps the US Navy had the right idea about not wanting any leaky cells on their ships!
    tactless

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    • The battery in an electrical room beneath the cockpit was swollen and had leaked electrolyte, safety inspector Hideyo Kosugi said on Japanese broadcaster NHK. Investigators found burn marks around the battery, though it was not thought to have caught fire. Kosugi also said the electrolyte liquid leaked through the electrical room floor to the outside of the aircraft, Kyodo news agency reported.
      The 787, known as the Dreamliner, is Boeing's newest jet, and the company is counting heavily on its success. Since its launch after delays of more than three years, the plane has been plagued by a series of problems including a battery fire and fuel leaks.
      GS Yuasa Corp., the maker of the lithium ion batteries used in the 787s, said it was helping with the investigation but that the cause of the problem was unclear.
      ... could it be the prismatic cells don't have a safety vent?
      tactless

 
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