Solid electrolyte film and preparation method and application thereof

Abstract

The invention discloses a solid electrolyte film and a preparation method and application thereof, and belongs to the field of degradable batteries. The solid electrolyte film takes cellulose aerogel as a framework and takes colloidal guar gum electrolyte as a filler. The preparation method comprises the following steps: 1, preparing cellulose aerogel; 2, preparing a colloidal guar gum electrolyte; and 3, preparing a solid electrolyte film: doping the colloidal guar gum electrolyte into the cellulose aerogel to prepare the solid electrolyte film. The preparation method is simple in process, low in cost and suitable for large-scale production, and the prepared solid electrolyte film can effectively inhibit generation of zinc dendrites, so that the whole battery has high electrochemical stability, high specific capacity and good electrochemical performance.

Description

technical field [0001] The invention relates to the field of degradable batteries, in particular to a solid electrolyte film and its preparation method and application. Background technique [0002] At present, more than 50 million tons of e-waste are generated every year, and most of the e-waste is disposed of through landfill, which imposes a heavy burden on the environment. Therefore, the study of transient flexible electronic devices is particularly important. Transient electronics refers to state-of-the-art technologies that partially or completely degrade, dissolve or disintegrate under certain conditions in an actively and passively controlled manner. Transient electronic products can use biodegradable materials, or non-biodegradable materials that can be degraded by the environment to protect the environment. For green electronics, the introduction of degradable materials into consumer electronics or environmental monitors is expected to greatly alleviate landfill ...

AI Technical Summary

Problems solved by technology

At present, the technical problems in the invention and production of the solid electrolyte film of the degradable battery mainly include: 1. The solid electrolyte film of the degradable battery needs to have both electrochemical stability and degradability, so the material selection is extremely limited The electrochemical performance of the current degradable solid electrolyte membrane is unstable; 2. The production process of the solid electrolyte membrane for degradable batteries is relatively difficult, and the width and thickness of the membrane cannot be controlled

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