Fig. 3.
λ∥ (a) and λ⊥ (b) of BN/PNF and m-BN/PNF nanocomposite paper at room temperature; the curves of temperatures vs. time (c) for heating resistor on air, PNF paper and m-BN/PNF-50 nanocomposite paper and corresponding infrared thermal images (c′); the curves of temperatures vs. time (d) for the bare lithium-ion rechargeable battery, the lithium-ion rechargeable battery integrated with PNF paper and m-BN/PNF-50 nanocomposite paper, and corresponding infrared thermal images (d′); TGA curves (e) of PNF paper and m-BN/PNF-50 nanocomposite paper; optical photographs of PNF paper (f) and m-BN/PNF-50 nanocomposite paper (g) before and during burning; SEM images of PNF paper (h) and m-BN/PNF-50 nanocomposite paper (i) after burning
