Synthetic Stone Supercapacitor With Geopolymer-Cement Electrolyte
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Solution Overview
Problem
Existing building materials, such as concrete, lack efficient and environmentally friendly methods for storing electrical energy, and conventional batteries face issues with electrolyte thickness, resistance, and the use of toxic substances, which are not suitable for large-scale energy storage, and existing technologies have not effectively addressed these challenges.
Innovation Solution
A synthetic stone supercapacitor is developed using a geopolymer-cement matrix with embedded steel electrodes, which integrates the anode, cathode, and electrolyte into a monolithic structure, utilizing the pore solution in cement for ion mobility and reducing electrical resistance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If concrete is used as electrolyte with aggregates, then mechanical reinforcement and cost decrease are achieved, but electrolyte layer thickness increases causing higher resistance
Solution Approach 1:
The patent removes aggregates from the concrete electrolyte composition, extracting the problematic component that caused increased resistance while preserving the beneficial mechanical properties through alternative means. This extraction resolves the contradiction by eliminating the source of high resistance without compromising structural integrity.
Solution Approach 2:
The patent utilizes porous concrete without aggregates to create an optimized electrolyte structure. The porous configuration provides adequate ion transport pathways while maintaining mechanical strength, resolving the contradiction between mechanical reinforcement and electrical resistance by redesigning the material architecture rather than relying on aggregate-filled dense concrete.
2Reliability
If liquid electrolytes are used, then high ionic mobility and continuous electrode-electrolyte interface are achieved, but toxic constituents and leakage vulnerability increase
Solution Approach 1:
The patent changes the physical state parameter of the electrolyte from liquid to solid (porous concrete), fundamentally altering the system's properties. This phase change eliminates toxicity and leakage issues while maintaining adequate ionic mobility through the porous structure, resolving the contradiction between ionic mobility and harmful factors.
Solution Approach 2:
The patent converts the traditionally harmful aspect of concrete (low ionic mobility due to solid structure) into a benefit by creating a porous solid structure that provides both mechanical strength and adequate ion transport. This transforms the solid state from a disadvantage into an advantage that simultaneously solves toxicity and leakage problems.
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 synthetic stone supercapacitor achieves high energy density and low electrical resistance, enabling efficient energy storage and delivery, suitable for building integration, and provides a cost-effective, environmentally friendly solution for energy management.
Implementation Method 1
utilizing the pore solution in cement for ion mobility and reducing electrical resistance
Implementation Method 2
an anode, that is an electrode which is an electronic conductor and which undergoes chemical oxidation during the discharge of the battery
Implementation Method 3
a cathode, that is an electrode which is an electronic conductor and which undergoes chemical reduction during the discharge of the battery
Implementation Method 4
Electrolytes are ionic dielectric materials that conduct electricity through the movement of ions
Data Source
AI summary
This synthetic stone can be used as electrical energy storage which acts like a supercapacitor and invention also discloses a preparation method thereof. According to this invention, geopolymer (11) and cement (12) are being taken as materials for an electrolyte. A supercapacitor of the present invention comprises a geopolymer (11) and cement matrix (1) and a positive and negative steel electrode (2, 3), whereby the steel electrodes (2, 3) are arranged in the matrix (1), and the matrix (1) is prepared from conductive mortar. The conductive mortar (1) comprises fly ash, cement (12), gravel and sand, alkali activator (KOH and SiO2) (13), and some additives (14) of synthetic stone compounds such as poly carboxylate ether, retarder, lignosulfonate, ethylene-vinyl acetate, hydroxypropyl methyl cellulose, pigment and carbon black. This supercapacitor synthetic stone is simple in structure and is based on a particular formulation.


