Patent ID: 8367239
Filing Date: 2013-02-05
Classification: H01M,Y02E

Abstract:
1. A thermal runaway propagation prevention system for use with a plurality of batteries contained within a battery pack, the thermal runaway propagation prevention system comprising: a cell mounting bracket configured to hold at least a portion of each of said plurality of batteries within a predetermined location and with a minimum battery-to-battery separation distance, wherein said cell mounting bracket is fabricated from a first material with a first melting temperature; and a spacer assembly, wherein said spacer assembly maintains each of said plurality of batteries within said predetermined location and with said minimum battery-to-battery separation distance, wherein said spacer assembly is comprised of a second material with a second melting temperature, wherein said second melting temperature is greater than said first melting temperature, wherein said spacer assembly is comprised of a plurality of strips of said second material, wherein said second material is comprised of a ceramic material, wherein said ceramic material is electrically insulating and has a low coefficient of thermal conductivity and is compressible, wherein a pair of said plurality of strips is interwoven between pairs of adjacent batteries of said plurality of batteries, and wherein a first strip of said pair is positioned near a top region of each of said adjacent batteries and a second strip of said pair is positioned near a bottom region of each of said adjacent batteries.