This paper describes the design of a 10.8 kWh, 28V, Ni-MH battery using commercial off-the shelf (COTS) 4/3A Ni-MH cells for the X-38 vehicle, an experimental version of the Crew Return Vehicle (CRY). This will be an autonomous vehicle that will enable International Space Station crews to return to earth in the event of a medical, or other, emergency. The X-38 will be powered by 3 batteries: a 32 V primary battery, which will power the vehicle avionics for up to 7 hours for a loiter and de-orbit phase of the descent; a 28 V Ni-MH battery which will take over for the primary battery after de-orbit until landing, and a 270V Ni-Cd battery, which will be used to power electromechanical actuators and the winches controlling a parachute for landing.


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    Title :

    Design of a 10.8 kWh, 28V Ni-MH Battery Using Commercial Ni-MH Cells


    Contributors:
    R. M. Hellen (author) / E. C. Darcy (author)

    Publication date :

    2000


    Size :

    3 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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