A fully degradable implantable aqueous zinc ion battery, a preparation method and applications thereof

Abstract

The application discloses a fully degradable implantable aqueous zinc ion battery, a preparation method and application, and the aqueous zinc ion battery is composed of a degradable manganese-based positive electrode, a degradable zinc metal negative electrode and a gel-like composite electrolyte, wherein the gel-like composite electrolyte takes a degradable porous support as a carrier, and the inside of the carrier is filled with a neutral zinc salt aqueous solution; and the degradable porous support is a carboxymethyl cellulose composite material. The battery shows excellent electrochemical performance, and the reversible specific capacity can reach up to 177 mAh / g, has long-term stability of more than 100 cycles, and has good biocompatibility and no toxicity accumulation. The battery solves the problem that traditional implantable electronic devices need to be taken out by secondary surgery, and provides a safe, efficient and environmentally-friendly integrated energy solution for disposable medical diagnosis, in-vivo wearable devices and temporary implantable treatment devices.

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