Multimodal Anti‐/Deicing on Laser‐Structured Polymer Surface via Photothermal Retention and Post‐Abrasion Redeposition

ABSTRACT Multimodal deicing remains challenging because surfaces that perform well initially often lose essential functionality after service abrasion. Here, we establish a multimodal deicing strategy based on Ni‐decorated laser‐induced graphene (LIG) hierarchical surfaces. This surface integrates excellent superhydrophobicity, enhanced abrasion tolerance, anti‐icing capability, and multimodal deicing performance, exhibiting a water contact angle of 162.6 ± 0.7°, an icing delay time of 224.8 ± 21.4 s, and photothermal, electrothermal, and magnetothermal deicing times of 63.2 ± 5.0 s, 56.2 ± 6.0 s, and 83.0 ± 12.3 s, respectively. The surface operates across three service states. In the initial state, the intact hierarchical architecture supports efficient multimodal deicing. After abrasion within the defined redeposition window, the retained LIG framework preserves daytime photothermal deicing, maintaining essential deicing capability despite the deterioration of electrothermal and magnetothermal functions. When all‐day anti‐/deicing operation is required again, secondary electrodeposition reconstructs the Ni‐rich functional layer within this window, re‐establishes the electrothermal and magnetothermal pathways, and enables multimodal deicing again. This surface can be prepared through a simple, scalable, and patternable route compatible with curved and large‐area substrates. This work demonstrates multimodal deicing through photothermal function retention and post‐abrasion redeposition, offering practical strategies for deicing interfaces under service abrasion.