| abstract |
Paper suitable for use as a cell-to-cell flame barrier in a battery, and a battery comprising paper, wherein the paper is based on the total weight of fibrids and mica in the paper. 40 to 70% by weight of fibrids and 30 to 60% by weight of mica; the fibrid comprises a blend of 80 to 20 weight percent polymer and 20 to 80 weight percent airgel powder, based on the total weight of the polymer and airgel powder in the fibrid; Paper is 100 to 4000 micrometers thick. |