Cellulose Thin Film Electrode with Silver Nano Dendrite
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Solution Overview
Problem
Existing flexible electronic components, such as lithium ion batteries and supercapacitors, are not suitable for next-generation flexible electronic devices due to their rigidity, heaviness, and large size, requiring a high conductivity electrode with excellent mechanical properties and low manufacturing complexity and cost.
Innovation Solution
A cellulose thin film electrode comprising a silver nano dendrite is manufactured by soaking a reaction metal in a solution containing silver nitrate and cellulose acetate, with a galvanic reaction forming the silver nano dendrite and hydrolyzing cellulose acetate, potentially incorporating multi-wall carbon nanotubes for enhanced conductivity and flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If conventional flexible electrode materials are used, then flexibility is improved, but conductivity and mechanical properties deteriorate
Solution Approach 1:
The patent uses a composite structure consisting of cellulose acetate thin film as the base material and silver nano dendrites as the conductive component. This composite material combines the flexibility of cellulose with the high conductivity of silver, achieving both flexibility and excellent electrical properties simultaneously.
2Reliability
If existing energy storing apparatuses are used, then energy storage function is provided, but weight and size increase
Solution Approach 1:
The patent employs a thin film electrode structure with cellulose acetate as the substrate and silver nano dendrites as the active material. This thin film design dramatically reduces the weight and thickness of the energy storage apparatus while maintaining its energy storage functionality, making it suitable for flexible electronic devices.
3Reliability
If conventional electrode manufacturing methods are used, then electrode function is achieved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent utilizes a self-assembly approach where silver ions in the cellulose acetate thin film automatically reduce and form silver nano dendrites through contact with aluminum foil in an alkaline solution. This self-organizing process eliminates the need for complex nanofabrication equipment and techniques, significantly simplifying manufacturing while producing uniform nanostructures.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The cellulose thin film electrode exhibits high flexibility, mechanical toughness, and low resistance, maintaining electrical characteristics even after repeated bending, suitable for flexible electronic applications and serving as a supercapacitor electrode with improved capacitance values.
Implementation Method 1
forming the cellulose thin film electrode comprising a silver nano dendrite by soaking a reaction metal in a reaction solution, wherein a thin film comprising silver nitrate and cellulose acetate is attached to the reaction metal
Implementation Method 2
the reaction solution may comprise an acid solution and an alkaline solution
Data Source
AI summary
Provided is a cellulose thin film electrode comprising a silver nano dendrite and a method of manufacturing the same. The method of manufacturing a cellulose thin film electrode comprising a silver nano dendrite comprises: forming the cellulose thin film electrode comprising a silver nano dendrite by soaking a reaction metal to which a thin film comprising silver nitrate and cellulose acetate is attached, in a reaction solution; and separating the cellulose thin film electrode from the reaction metal and then removing the reaction metal from the reaction solution.