In recent years， flexible electronic devices have shown broad application prospects in fields such as smart sensing equipment， human-machine interfaces and bio-inspired electronic skins. Ionogels demonstrate significant potential in the preparation of flexible electronics due to their excellent electrochemical performance， tunable mechanical properties and high environmental adaptability. However， the generally poor mechanical properties of ionogels limit their widespread use. To address this， this article systematically reviews the research progress of ionogels from two aspects： preparation methods and mechanical reinforcement strategies. First common types of ionic liquids and their characteristics are summarized based on the types of anions and cations. Then the preparation techniques for ionogels are categorized into physical blending， in situ polymerization and solvent exchange， with detailed analysis of their advantages and disadvantages. Next， representative strategies for enhancing mechanical performance are outlined， including regulating polymer network structures， constructing non-covalent interactions， forming microphase-separated structures and introducing inorganic nanoparticles. The mechanism of these strategies， the regulatory effect on the mechanical properties of ionogels， and the application scenarios are systematically explained. Finally， key challenges in current ionogels preparation processes are discussed along with future development directions. This work provides a theoretical foundation for designing high-performance ionogels and improving their properties.

Contents

1 Introduction

2 Types and characteristics of ionic liquids

3 Preparation methods of ionogels

3.1 Physical blending method

3.2 In situ polymerization

3.3 Solvent exchange

4 Strategies for strengthening the mechanical properties of ionogels

5 Conclusion and outlook