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• Slipping semi-crystalline hydrogen bonding arrays strategy was firstly proposed. • Ultrastretchability and outstanding toughness were achieved simultaneously. • Excellent sensitivity was achieved by compensating electronic networks. Self-healing and human-friendly electronics, with plenty of dynamic structural motifs, are desired to be ultrastretchable, highly sensitive, self-powered and responsive with external stimulus as the medium of artificial intelligence. Herein, meticulously engineered dynamic structural motifs, slipping semi-crystalline dynamic hydrogen bonding arrays (SSHAs) were firstly proposed and utilized to achieve ultrastretchable (2880 %), tough (115.7 MJ∙m−3) elastomers (PAT) with excellent actuation performance (actuation strain ≈ 37 %) and human-friendly healing temperature. For the multifunctionality, the elaborate assembly of SSHAs was also adopted to obtain three-dimensional (3D) physical networks (PAT-M) by integrating with Ti 3 C 2 T x and silver nanowire. As expected, high sensitivity (gauge factor, GF ≈ 60.6) and ultrahigh energy harvesting property (2.6 W∙m−2) were simultaneously achieved attributing to the 3D physical networks. This study not only provides a brand-new and promising strategy to develop human-friendly self-healing elastomers, but also promotes the advances of multifunctional electronics. [ABSTRACT FROM AUTHOR]

• The large-scale fabrication of aramid nanofiber membrane (ANFM) with proper porous size was proposed. • The ANFM displayed superior mechanical properties and impressively wettability for organic electrolyte. • Simultaneously suppression of lithium dendrites and remarkable improvement of cycle life were achieved for ANFM separator. • Li-ion batteries can operate stability at a high temperature (150℃) environment. Huge volume changes, uncontrolled side-reactions with electrolytes and irregular dendrite induced short-circuits have impeded practical application in rechargeable batteries based on metallic electrodes including lithium (Li), sodium (Na) and aluminum (Al). Separator with superior mechanical strength represent attractive alternatives to inhibit metal-dendrite growth while preventing capacity fading by stabilizing the solid electrolyte interphase (SEI). However, the challenge of simultaneous retaining high thermal resistance and good electrolyte wettability still have been not overcome in commonly used separators. Here we show that these key properties can be acquired in a porous membrane fabricated from Kevlar microfiber-derived aramid nanofibers (ANFs) prepared in a facile and scalable vacuum filtration method. The obtained ANFs membrane (ANFM), which yields mechanically strong that are markedly effective in inhibit dendrite growth as well as provides good electrolyte wettability to ensure excellent electrochemistry performance. Benefitting from these merits, ANFM guarantee stable cycling of Li-ion or Na-ion rechargeable batteries paired with conventional intercalating cathodes (LiCoO 4 and Na 2 Ti 3 O 7) even at a high operated temperature (150 ℃ for Li-ion battery). Replacing polyolefins-based separator with an ANFM appear to offer a major step towards dendrite-free Li /Na batteries and potentially other metal-ion batteries. [ABSTRACT FROM AUTHOR]