Oleaster Peel Separator for Eco-Friendly Supercapacitors
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Solution Overview
Problem
Conventional supercapacitor separators made from polymer-based materials are costly, environmentally harmful, and require lengthy chemical synthesis, lacking eco-friendly and cost-effective alternatives.
Innovation Solution
Utilizing the peel of oleaster fruit as a separator, which is naturally sourced, easily prepared by washing and ultrasonication, and environmentally friendly, providing a cost-effective and efficient alternative.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a polyolefin-based separator is used to ensure chemical inertness and electrochemical stability, then reliability is improved, but heat sealing at low temperatures causes deformation and reduces manufacturing precision
Solution Approach 1:
The patent modifies the chemical composition parameters of the polyolefin resin by incorporating specific additives (0.1-5 wt% of compounds with carboxyl, hydroxyl, or amine groups) to change the thermal properties of the separator, enabling heat sealing without deformation at controlled temperatures
Solution Approach 2:
The patent creates a composite separator structure by combining polyolefin resin with specific functional compounds that have high boiling points and specific thermal properties, resulting in a composite material that maintains both electrochemical stability and heat sealability
2Productivity
If the separator porosity is increased to improve ion permeability and charge-discharge rate, then productivity is improved, but mechanical strength decreases
Solution Approach 1:
The patent utilizes porous polyolefin resin with controlled pore structures (porosity 30-80%, average pore size 0.01-10 μm) to achieve high ion permeability while maintaining mechanical integrity through the specific pore architecture and material composition
3Volume of stationary object
If the separator thickness is reduced to increase energy density, then volume of battery is improved, but reliability decreases due to increased risk of short circuiting
Solution Approach 1:
The patent employs thin film separators (thickness 1-20 μm) made from modified polyolefin resin that maintain sufficient mechanical strength and electrochemical stability despite the reduced thickness, preventing short circuits while maximizing energy density
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 oleaster fruit peel offers a cost-efficient, environmentally benign solution with high ion conductivity and flexibility, reducing preparation time and environmental impact while maintaining performance.
Implementation Method 1
a) a polyolefin-based separator comprising: a microporous membrane formed from a polyolefin resin
Implementation Method 2
Separators are critical components in electrochemical energy storage devices such as lithium-ion batteries and supercapacitors, as they physically isolate the positive and negative electrodes to prevent direct electrical contact
Data Source
AI summary
The present invention relates to the use of oleaster fruit peel as a separator in energy storage devices. The present invention comprises a method for preparing the peel of oleaster fruit for use as a separator that is completely natural, and the preparation process of which does not involve using any chemicals, require extended periods of time or high costs.