Battery packaging capable of autonomous temperature regulation is a highly attractive strategy for thermal management systems, as it directly enhances safety by mitigating thermal runaway risks. In this work, an integrated battery packaging film capable of simultaneous heat dissipation, low-temperature heating, and real-time temperature monitoring has been successfully developed. By embedding 1D nickel-carbon (1D Ni-C) fibers aligned at a certain angle relative to the film plane together with in-plane oriented 2D graphene (2D GN) to construct a multidimensional heat conduction network, the film achieves maximized thermal conductivity, rapid electrothermal response, and sensitive thermoelectric perception.
A novel polyimide composite film with active thermal management capability for battery packaging
