Mixed Metal Oxide Energy Storage for Stable High-Temperature Discharge
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current energy storage technologies for renewable energy systems face challenges such as poor reactive stability, moderate volumetric energy densities, and low energy discharge temperatures, limiting their effectiveness and efficiency in storing and releasing energy.
Innovation Solution
The use of mixed metal oxides that undergo redox reactions, releasing oxygen upon heating and generating heat when exposed to an oxygenated gas, allowing for high energy density, stability, and efficient energy storage and release over multiple cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional thermochemical energy storage materials are used, then energy storage capacity can be achieved, but reactive stability is poor and materials degrade after thousands of cycles
Solution Approach 1:
The patent employs composite materials by combining multiple metal oxides (e.g., MnO2, Fe2O3, Co3O4, NiO) in specific ratios to create a mixed metal oxide system that achieves both high reactive stability and high energy density. This composite approach allows the material to maintain structural integrity over thousands of cycles while delivering high discharge temperatures and energy density, directly resolving the contradiction between reliability and duration.
Solution Approach 2:
The patent utilizes parameter changes by controlling the oxidation states and stoichiometric ratios of the metal oxides during synthesis and operation. By adjusting these parameters, the material achieves optimal redox activity and structural stability, enabling it to withstand repeated cycling without degradation while maintaining high energy density and reactive stability.
2Quantity of substance
If conventional energy storage materials are used, then storage capacity is achieved, but volumetric energy density is moderate
Solution Approach 1:
The patent employs composite materials by combining multiple metal oxides (e.g., MnO2, Fe2O3, Co3O4, NiO) in specific ratios to create a mixed metal oxide system that achieves both high reactive stability and high energy density. This composite approach allows the material to maintain structural integrity over thousands of cycles while delivering high discharge temperatures and energy density, directly resolving the contradiction between reliability and duration.
Solution Approach 2:
The patent applies local quality by optimizing the distribution and interaction of different metal oxide phases within the composite structure. Each metal oxide contributes specific properties (MnO2 for capacity, Fe2O3 for stability, Co3O4/NiO for conductivity), creating localized functional zones that collectively achieve high volumetric energy density while maintaining overall structural reliability.
3Temperature
If traditional thermal energy storage materials are used, then energy storage is achieved, but discharge temperature is low limiting conversion efficiency
Solution Approach 1:
The patent utilizes parameter changes by controlling the oxidation states and stoichiometric ratios of the metal oxides during synthesis and operation. By adjusting these parameters, the material achieves optimal redox activity and structural stability, enabling it to withstand repeated cycling without degradation while maintaining high energy density and reactive stability.
Solution Approach 2:
The patent employs strong oxidants by using highly reactive metal oxides (MnO2, Fe2O3, Co3O4, NiO) that undergo vigorous redox reactions, releasing large amounts of heat at high temperatures. This accelerated oxidation process enables the system to achieve discharge temperatures sufficient for high-efficiency thermal-to-electric conversion, directly addressing the temperature efficiency contradiction.
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 mixed metal oxides provide high reactive stability, high discharge temperatures, and high energy density, enabling cost-effective and efficient energy storage solutions for renewable energy systems, with the ability to regenerate the materials through chemical shock for extended use.
Implementation Method 1
the mixed metal oxide (i) is reduced when heated to produce a reduced solid state while liberating oxygen
Implementation Method 2
when in the reduced state, the mixed metal oxide is oxidized by exposing it to an oxygenated gas
Implementation Method 3
the mixed metal oxide is oxidized by exposing it to an oxygenated gas... generating heat
Data Source
AI summary
In accordance with the purpose(s) of the present disclosure, as embodied and broadly described herein, the disclosure, in one aspect, relates to energy storage articles. In one aspect, the energy storage articles are composed of a mixed metal oxide, wherein the mixed metal oxide (i) is reduced when heated to produce a reduced solid state while liberating oxygen and (ii) when in the reduced state, the mixed metal oxide is oxidized by exposing it to an oxygenated gas, and the mixed metal oxide is electrically conductive. The energy storage articles can be manufactured in a variety of different configurations to maximize the efficiency and effectiveness of the energy storage article.