# A review on flexible self-healing thermoelectric devices

## TL;DR

This paper reviews how self-healing materials can improve the durability of flexible thermoelectric devices used in wearable electronics.

## Contribution

The paper provides a comprehensive review of self-healing materials in thermoelectric devices, highlighting their potential to enhance device longevity.

## Key findings

- Self-healing materials can significantly improve the reliability of flexible thermoelectric devices.
- Rational design of self-healing materials is crucial for enhancing device performance and longevity.
- Current research shows promise for sustainable flexible electronics through self-healing thermoelectric devices.

## Abstract

The rapid development of wearable and portable electronics has intensified the demand for flexible thermoelectric devices that can convert human body heat into electricity. In practical use, however, such devices suffer from performance degradation caused by mechanical damage and thermal stress, which severely limit their service life and reliability. The recent introduction of self-healing materials offers a promising route to address these challenges. This review summarizes the fundamental principles, architectures, and performance requirements of thermoelectric devices, and surveys the current research progress of self-healing materials employed therein. Evidence to date demonstrates that the rational design and optimization of self-healing materials can markedly enhance the reliability and longevity of thermoelectric devices, providing strong support for the sustainable evolution of flexible electronics.

Physics; Engineering; Materials science