Containment device and method for containing energy storage devices
A containment device including a cover defining an internal volume and an opening into the internal volume, the cover being formed as a layered structure including at least a first layer and a second layer, the first layer comprising a woven ceramic fabric and the second layer comprising oxidized polyacrylonitrile fibers.
1. A containment device for an energy storage device, the containment device comprising a box defining an internal volume and an opening into said internal volume, said box being formed as a layered structure including at least a first layer and a second layer inside said first layer, said first layer consisting of a woven ceramic fabric and said second layer consisting of oxidized polyacrylonitrile fibers.
2. The containment device of claim 1 further comprising a seal around said opening, said internal volume being enclosed when said seal seals said opening.
3. The containment device of claim 2 wherein said seal includes a flap, said flap being formed from said layered structure.
4. The containment device of claim 2 wherein said seal includes a zipper fastener.
5. The containment device of claim 1 wherein said second layer is positioned between said first layer and a third layer, said third layer comprising said woven ceramic fabric.
6. The containment device of claim 1 wherein said first layer is connected to said second layer by stitching.
7. The containment device of claim 1 wherein said woven ceramic fabric comprises alumina borosilicate fibers.
8. The containment device of claim 1 wherein said second layer further comprises structural strengthening fibers.
9. The containment device of claim 8 wherein said structural strengthening fibers are selected from the group consisting of polybenzimidazole, polyphenylene-2,6-benzobisoxazole, modacrylic p-aramid, m-aramid, polyvinyl halides, wool, fire resistant polyesters, fire resistant nylons, fire resistant rayons, cotton, melamine and combinations thereof.
10. The containment device of claim 1 wherein second layer consists essentially of said oxidized polyacrylonitrile fibers and aramid fibers.
11. The containment device of claim 1 further comprising an energy storage device received in said enclosed volume.
12. The containment device of claim 11 wherein said energy storage device includes a lithium-ion battery.