Metal Halide Battery Electrolyte for Fast Charging
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Solution Overview
Problem
Current rechargeable batteries, such as lithium-ion and NiMH batteries, face limitations in charging speed and high manufacturing costs due to the use of heavy metal cathode materials, hindering their application in a wider range of uses.
Innovation Solution
A rechargeable metal halide battery with an optimized electrolyte formulation comprising a mixed-solvent of organic liquid compounds, including a glyme-based compound, a metal halide as an active cathode material, and an oxidizing gas, which facilitates ion transport between the anode and cathode, reducing the need for heavy metals and improving performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If lithium-ion or NiMH batteries are used, then reliable electrochemical performance is achieved, but charging speed is slow and manufacturing cost is high
Solution Approach 1:
The patent changes the chemical composition parameters of the electrolyte by using a mixed-solvent system with specific glyme-based compounds (20-70 volume %) combined with metal halides and oxidizing gases. This parameter change enables faster ion transport kinetics and allows the use of lighter metal halide cathode materials instead of expensive heavy metals, thereby improving charging speed while reducing manufacturing cost
Solution Approach 2:
The patent employs a composite electrolyte formulation combining multiple components: glyme-based organic liquid compounds, metal halides, and oxidizing gases dissolved together. This composite material approach creates synergistic effects that enhance ion conductivity and enable faster charging rates while using cost-effective metal halide materials
2Reliability
If heavy metal cathode materials are used, then electrochemical performance is maintained, but manufacturing cost increases
Solution Approach 1:
The patent replaces expensive heavy metal cathode materials with metal halides that are lighter and potentially less expensive. The optimized electrolyte formulation compensates for any performance deficits, allowing the battery to maintain reliable electrochemical performance while using more cost-effective materials
Solution Approach 2:
By changing the electrolyte composition parameters to include specific concentrations of glyme-based compounds (20-70 volume %) and dissolved metal halides with oxidizing gases, the patent enables metal halide materials to achieve electrochemical performance comparable to or exceeding traditional heavy metal cathodes, thereby reducing manufacturing cost without sacrificing reliability
3Productivity
If traditional electrolyte formulations are used, then battery stability is maintained, but charging rate is limited
Solution Approach 1:
The patent introduces dynamic characteristics to the electrolyte system by using a mixed-solvent formulation with glyme-based compounds that provide flexible ion solvation. This dynamic electrolyte composition adapts to charge-discharge cycles while maintaining stability, enabling faster charging rates through enhanced ion mobility without compromising overall electrolyte stability
Solution Approach 2:
The composite electrolyte system combines glyme-based organic liquid compounds, metal halides, and oxidizing gases in specific proportions. This composite formulation creates a stable yet highly conductive medium that supports fast charging rates while maintaining compositional stability during battery operation through the synergistic interaction of its components
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 optimized electrolyte formulation enhances the performance of metal halide batteries by allowing faster charging rates and potentially lower manufacturing costs, making them suitable replacements for lithium-ion and NiMH batteries.
Implementation Method 1
the electrolyte facilitates transport of ions between the anode and the cathode current collector
Implementation Method 2
a metal halide that functions as an active cathode material, wherein the metal halide is dissolved in the mixed-solvent
Implementation Method 3
a glyme-based compound having the chemical formula, R1O—(CR22C R22O)n—C R1, wherein, n is an integer greater than 0
Implementation Method 4
an oxidizing gas dissolved in the mixed-solvent
Data Source
AI summary
A rechargeable metal halide battery with an optimized electrolyte formulation shows high capacity at fast charging rates. The optimized electrolyte includes a metal halide, an oxidizing gas, and a mixed-solvent solution that includes a glyme-based compound that is in a volume fraction of between 20-70 volume % of the mixed-solvent solution. The mixed-solvent solution may further include a nitrile compound and/or a heterocyclic compound.