Inorganic Solid Electrolyte Composition for Fast Superionic Synthesis
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Solution Overview
Problem
Existing organic electrolyte-based batteries suffer from safety issues and limitations in mechanical and chemical stability, hindering their commercialization, while inorganic sulfide, oxide, and halide solid electrolytes face drawbacks that need to be addressed for improved electrochemical performance.
Innovation Solution
Development of inorganic solid electrolytes with the formula AzNvS1-yOyX5, produced via a fast synthesis route, exhibiting superionic conductivity and suitable for use in batteries, with a method involving mechanochemical milling of precursor compounds in an inert atmosphere to form a homogenous precursor mixture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If organic electrolyte-based batteries are used, then commercialization is easier, but safety issues and limitations in mechanical and chemical stability occur
Solution Approach 1:
The patent changes the chemical composition parameters by incorporating oxygen into the sulfide electrolyte structure (creating Li2TaS1-xOxCl5), which fundamentally alters the material properties to achieve both high ionic conductivity and improved stability, resolving the contradiction between ease of manufacture and reliability
Solution Approach 2:
The patent creates a composite inorganic electrolyte system combining sulfide, oxide, and halide components in a specific structure (AzNvS1-yOyX5), leveraging the advantages of each material class to achieve superior mechanical and chemical stability while maintaining high ion conduction
2Reliability
If sulfide, oxide, and halide solid electrolytes are used, then mechanical and chemical stability is improved, but drawbacks hinder commercialization
Solution Approach 1:
The patent optimizes compositional parameters (ratios of sulfide, oxide, and halide components) to achieve the ideal balance between stability and manufacturability, demonstrating that controlled parameter adjustment can resolve commercialization barriers while maintaining reliability
3Ease of manufacture
If conventional synthesis routes are used, then production is simpler, but synthesis time is longer
Solution Approach 1:
The patent applies preliminary mechanochemical milling to precursors before the main synthesis reaction, which pre-mixes and activates the starting materials, enabling faster and more complete reactions that reduce overall synthesis time while maintaining process simplicity
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 electrolytes demonstrate high ionic conductivity, low electronic conductivity, and stable performance over a wide temperature range, making them suitable for electronic devices and batteries, including solid-state batteries, even in cold environments.
Implementation Method 1
The electrolytes demonstrate high ionic conductivity, low electronic conductivity
Implementation Method 2
a method involving mechanochemical milling of precursor compounds in an inert atmosphere to form a homogenous precursor mixture
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 inorganic solid electrolytes and synthesis of inorganic solid electrolytes. The electrolytes have the general formula AzNvS1-yOyX5, exhibit superionic conductivity, and can be produced via a relatively fast synthesis route. The electrolytes can be a component of different types of batteries.