Fig. 4.

High thermal conductivity materials for passive thermal management: a Thermally conductive boron nitride composite that is aligned in the cross-plane direction. Reproduced with permission [98]. Copyright 2021, Springer Nature. b Thermally conductive liquid metal-elastomer composite that has the in-plane oriented alignment. Reproduced with permission [21].

Copyright 2017, PNAS. c Thermally conductive boron nanosheet composite that can be aligned both in the cross-plane and in-plane direction depending on the manufacturing method. Reproduced with permission [71]. Copyright 2022, Elsevier