Solid electrolyte film and preparation method and application thereof

A technology of solid electrolyte and electrolyte, which is applied in the direction of circuits, electrical components, secondary batteries, etc., can solve the problems of uncontrollable film width and thickness, difficult manufacturing process of solid electrolyte film, unstable electrochemical performance, etc., and achieve good biological performance. Effect of compatibility and degradability, good electrochemical stability, and good electrochemical performance

Pending Publication Date: 2021-12-10
NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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 e

Method used

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  • Solid electrolyte film and preparation method and application thereof
  • Solid electrolyte film and preparation method and application thereof
  • Solid electrolyte film and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1

[0042] Step 1, a cellulose gas gel was prepared: 20 g of carboxylated cellulose nanofibers were added to 60 ml of deionized water, followed by adding 0.3 g of polyvinyl alcohol, 95 ° C constant temperature oil bath for 2 hours. 0.5 g of citric acid and 0.5 ml of phosphoric acid were quickly added, and stirred to uniform. The uniform solution was poured into the mold into the refrigerator in -18 ° C for 2 hours, and finally the cellulose gas gel was obtained at -45 ° C, 20 Pa.

[0043] Step 2, prepare a tamper bean glue electrolyte: Znso 4 (AR level, Sigma) and MNSO 4 (AR grade, Sigma) is added to deionized water and mix evenly, ultrasonic removal bubbles, resulting in 10 ml concentrations of 2 mol / L ZNSO, respectively. 4 And 0.1mol / lmnso 4 Mixed solution. The mixture was poured into 0.6 g of melon peptamer in the mixed solution, and the gel of the bean adhesive was obtained.

[0044]Step 3, preparing a solid electrolyte film: the adhesive bean adhesive elect...

Example Embodiment

[0054] Example 2

[0055] As in Example 1, the difference is that step 3 specifically: injects the tamper bean glue electrolyte into the cellulose gas gel in the cellulose gas gel, sufficiently mixed (at this time, the solid-liquid mixed state), with the psychoscope to flat The solid electrolyte was obtained after forming a film on a surface dish, dried to the desired humidity. It is cut to a variety of sizes, such as 1 cm * 1 cm * 0.06 cm, resulting in a solid electrolyte film.

[0056] RESULTS: The solid electrolyte film made in this example has no significant difference from Example 1.

Example Embodiment

[0057] Example 3

[0058] As in Example 1, the difference is that step 3 specifically: injects the adhesive bean adhesive electrolyte into the cellulose gas gel using a syringe, and then add the mixture (solid-liquid mixed state) to the beaker and stir well. After pouring the membrane, it was poured into the membrane to obtain a solid electrolyte. It is cut to a variety of sizes, such as 1 cm * 1 cm * 0.06 cm, resulting in a solid electrolyte film.

[0059] RESULTS: The solid electrolyte film made in this example has no significant difference from Example 1.

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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 ...

Claims

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Application Information

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IPC IPC(8): H01M10/0565
CPCH01M10/0565Y02E60/10
Inventor 李勇许冉高萌谷倩倩李东玮王猛
Owner NEW MATERIAL INST OF SHANDONG ACADEMY OF SCI
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