Super-Assembled Hierarchical Cellulose Aerogel-Gelatin Solid Electrolyte for Implantable and Biodegradable Zinc Ion Battery

Zhou Junjie; Zhang Runhao; Xu RanLi YongTian WeiGao MengWang MengLi DongweiLiang XiuXie LeiLiang KangChen PuKong Biao

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Super-Assembled Hierarchical Cellulose Aerogel-Gelatin Solid Electrolyte for Implantable and Biodegradable Zinc Ion Battery

机译：Super-Assembled Hierarchical Cellulose Aerogel-Gelatin Solid Electrolyte for Implantable and Biodegradable Zinc Ion Battery

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Transient devices represent an emerging type of electronics whose main characteristic is the constituent materials that could fully or partially dissolute or disintegrate by chemical or physical processes after completing the mission, and are considered as new research directions for implantable devices. However, research on transient devices is still in its infancy and there are many challenges to overcome, especially the development of transient energy devices is relatively slow. Here, an implantable, biodegradable transient zinc ion battery (TZIB) that assembles a carefully designed cellulose aerogel-gelatin (CAG) solid electrolyte. The new fully degradable CAG solid electrolyte allows TZIB to achieve controlled degradation and stable electrochemical performance, at the same time maintaining excellent mechanical properties. The entire battery device can be completely degraded within 30 days in the buffered proteinase K solution. More importantly, TZIB has excellent electrochemical performance while meeting controlled degradation, providing a specific capacity of 211.5 mAh g(-1) at a current of 61.6 mA g(-1) and a wide voltage range (0.85-1.9 V). These results demonstrate the potential of TZIB in future clinical applications and provide a new platform for transient electronic technology.

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《Advanced functional materials》 |2022年第21期|2111406.1-2111406.12|共12页
作者
Zhou Junjie; Zhang Runhao; Xu RanLi YongTian WeiGao MengWang MengLi DongweiLiang XiuXie LeiLiang KangChen PuKong Biao;
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Qilu Univ Technol, Shandong Acad Sci, Adv Mat Inst, Natl Supercomp Res Ctr Adv Mat, Jinan 250014, Peoples R China;

Fudan Univ, Shanghai Key Lab Mol Catalysis & Innovat Mat iChE, Dept Chem, Shanghai 200433, Peoples R China;

Univ New South Wales, Australian Ctr NanoMed, Grad Sch Biomed Engn, Sch Chem Engn, Sydney, NSW 2052, AustraliaQilu Univ Technol, Shandong Acad Sci, Adv Mat Inst, Natl Supercomp Res Ctr Adv Mat, Jinan 250014, Peoples R China|Univ Waterloo, Dept Chem Engn, Waterloo, ON N2L 3G1, Canada;

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cellulose aerogels; implantable; biodegradable; super-assembly; transient devices; zinc ion batteries;

Super-Assembled Hierarchical Cellulose Aerogel-Gelatin Solid Electrolyte for Implantable and Biodegradable Zinc Ion Battery

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