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Figure 6. Flexible PCCs based on polymer encapsulation. (A) Preparation, thermal storage capacity, thermal conductivity, mechanical
properties, and battery thermal management applications of PW-OBC/EG composites. Reproduced with permission from ref [132] .
Copyright 2020, Royal Society of Chemistry; (B) Preparation of PCCs flexible PCCs, thermal storage capacity, thermal conductivity,
electrical conductivity, and cooling cell schematics. Reproduced with permission from ref [133] . Copyright 2021, Wiley-VCH; (C)
Preparation of TIPCM composites, self-healing and shape memory capabilities, and schematic diagram of chip thermal management
capabilities. Reproduced with permission from ref [134] . Copyright 2024, Elsevier. PCCs: Phase change composites; PW: paraffin wax;
OBC: olefin block copolymer; EG: expanded graphite; TIPCM: thermal interfacial phase change material.

preheating in cold environments and passive cooling in hot environments. Polymer encapsulation
technology can not only meet the basic shape stabilization and thermal management but also realize PCCs