×

Battery management systems with thermally integrated fire suppression

  • US 9,704,384 B2
  • Filed: 03/05/2013
  • Issued: 07/11/2017
  • Est. Priority Date: 05/22/2012
  • Status: Active Grant
First Claim
Patent Images

1. A battery management apparatus with thermally integrated fire suppression, comprising:

  • a battery housing having a housing wall and an area inside of said housing wall and within said battery housing;

    a gas venting system outside of said housing wall and outside of said area within said battery housing, said gas venting system operably connected to said area within said battery housing;

    a first battery cell within said area within said battery housing,a second battery cell within said area within said battery housing, andadditional battery cells within said area within said battery housing, wherein said first battery cell, said second battery cell, and said additional battery cells are all of the battery cells inside of said battery housing wherein said first battery cell, said second battery cell, and said additional battery cells can produce heat;

    two or more integrated cooling sheets inside of said housing wall and within said area within said battery housing and operably connected to said first battery cell, said second battery cell, and said additional battery cells, said integrated cooling sheets linked together and each of said integrated cooling sheets includingan evaporator,a condenser, anda refrigerant wherein said heat is transferred to said evaporator and said refrigerant and wherein said heat in said refrigerant is transferred to said condenser;

    two or more cooling passages between said first battery cell, said second battery cell, and said additional battery cells;

    at least one of said integrated cooling sheets operatively connected to one or more of said cooling passages;

    a first radio frequency identification sensor within said area within said battery housing and connected directly to said first battery cell,a second radio frequency identification sensor within said area within said battery housing and connected directly to said second battery cell, andadditional radio frequency identification sensors within said area within said battery housing and connected directly to said additional battery cells anda gas venting system radio frequency identification sensor outside of said housing wall and outside of said area within said battery housing,wherein said first radio frequency identification sensor connected directly to said first battery cell is adapted to detect a thermal runaway event related to said first battery cell,wherein said second radio frequency identification sensor connected directly to said second battery cell is adapted to detect a thermal runaway event related to said second battery cell, andwherein said additional radio frequency identification sensors connected directly to said additional battery cells are adapted to detect a thermal runaway event related to said additional battery cells,and wherein said gas venting system radio frequency identification sensor is operably connected to said gas venting system; and

    a battery management system operably connected to said first radio frequency identification sensor connected directly to said first battery cell, said second radio frequency identification sensor connected directly to said second battery cell, and said additional radio frequency identification sensors connected directly to said additional battery cells, and operably connected to said gas venting system radio frequency identification sensor and to said at least one integrated cooling sheet, to detect said thermal runaway event and wherein said battery management system is adapted to inject said refrigerant from said at least one integrated cooling sheet into at least one of said two or more cooling passages upon the detection of said thermal runaway event and to activate said gas venting system, so that said thermal runaway event is rapidly quenched.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×