Thermo‐responsive polymers for thermal regulation in electrochemical energy devices

Abstract Thermo‐responsive polymers have been widely explored because of their diverse structures and functions in response to temperature stimuli. Great attention has attracted exploring designing such composites, which offer tremendous opportunities build up a systematic understanding structure–function relationships pave the ways for extensive applications electronics, soft robotics, electrochemical energy storage devices. Here, we review most recent research thermal regulation devices (e.g., batteries, supercapacitors) via thermo‐responsive polymers. We summarize how battery components (i.e., electrolytes, separators, electrodes, or current collectors) can be coupled with based on different operation mechanisms, as volume expansion, polymerization, phase reversion, de‐doping effects, effectively prevent catastrophic runaway. Different types are evaluated compare key features and/or limitations. This is concluded perspectives future design strategies towards more effective regulation.