Ionogels　have　attracted　much　attention　in　recent　years　because　of　their　good　thermal　stability,　high　ionic　conductivity,　and　non-volatility.　However,　there　is　a　trade-off　between　the　mechanical　strength　and　stretchability　of　ionogels,　which　results　in　unsatisfactory　mechanical　performance.　Herein,　strong　polymer　crystallization　and　weak　ion-dipole　interaction　are　combined　to　prepare　an　ultra-tough　and　super-stretchable　ionogel.　The　crystalline　region　can　dissipate　the　energy　through　the　stress-induced　disaggregation　mechanism　in　the　stretching　process　and　toughen　the　gel,　while　the　reversible　formation　and　dissociation　of　the　ion-dipole　interaction　between　amorphous　polymer　chains　and　ionic　liquids　can　provide　elasticity　for　large　strain.　These　ionogels　have　high　toughness,　strong　tensile　strength,　large　Young’s　modulus,　and　good　stretchability.　Furthermore,　the　ionogels　also　possess　other　properties　like　good　fatigue　resistance,　quick　self-recovery,　high　transparency,　recyclability,　self-healing　ability,　high　ionic　conductivity,　and　wide　electrochemical　window.　This　ionogel　exhibits　great　potential　in　several　iontronic　devices,　such　as　triboelectric　nanogenerators,　ionic　thermoelectric　materials,　and　strain　sensors.　This　study　develops　a　new　method　to　guide　the　preparation　of　high-performance　ionogels　by　combining　reversible　strong　and　weak　interactions.[Figure　not　available:　see　fulltext.]　©　2023,　Science　China　Press.