Stretchable magnesium–air battery based on dual ions conducting hydrogel for intelligent biomedical applications

Xingcan Huang, Yiming Liu, Wooyoung Park, Zhao Zhao, Jiyu Li, Chee Kent Lim, Tsz Hung Wong, Chun Ki Yiu, Yuyu Gao, Jingkun Zhou, Hu Li, Ling Zhao, Jian Li, Binbin Zhang, Ya Huang, Rui Shi, Dengfeng Li, Jiaying Mo, Jinpei Wang, Chao ZhangYuhang Li, Zuankai Wang, Xinge Yu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

14 Citations (Scopus)


Flexible and bio-integrated electronics have attracted great attention due to their enormous contributions to personalized medical devices. Power sources, serving as one of the most important components, have been suffering from many problems, including deficient biocompatibility, poor stretchability, and unstable electrical outputs under deformed conditions, which limits the practical applications in flexible and bio-integrated electronics. Here, we reported a fully stretchable magnesium (Mg)–air battery based on dual-ions-conducting hydrogels (SDICH). The high-performance battery enables long-term operation with lighting 120 lighting emitting diodes (LEDs) for over 5 h. Benefiting from the advanced materials and mechanical designs, the battery exhibits stability electrical outputs under stretching, which allows to operate ordinarily under various mechanical deformations without performance decay. Furthermore, the great biocompatibility of the battery offers great opportunity for biomedical applications, which is demonstrated by a self-adaption wound dressing system. The in vitro and in vivo results prove that the self-adaption wound dressing can effectively prevent wound inflammation and promote wound healing. By exploiting thermal feedback mechanics, the system can adjust antibiotic release rate and dosage spontaneously according to the real-time wound conditions. The proposed fully stretchable Mg–air battery and self-adaption wound dressing display great potential in skin-integrated electronics and personalized medicine. (Figure presented.).

Original languageEnglish
Publication statusAccepted/In press - 2022
Externally publishedYes


  • bioelectronics
  • flexible electronics
  • Mg–air battery
  • stretchable battery
  • wound healing

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Materials Science (miscellaneous)
  • Surfaces, Coatings and Films
  • Materials Chemistry


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