Functionalized Detection Materials for Lithium Electrolytes
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Solution Overview
Problem
Current methods lack effective and stable materials for detecting alkaline elements, particularly cationic lithium, in liquid media like alkali metal-ion battery electrolytes, which is crucial for monitoring battery health and preventing degradation.
Innovation Solution
Development of functionalized polymers and inorganic materials with aromatic rings containing imine substituents and atoms bearing lone pairs, capable of complexing alkaline elements and undergoing optical changes such as absorbance or fluorescence for detection and quantification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional detection methods are used for alkaline elements, then detection can be performed, but the materials lack stability and effectiveness in liquid media such as battery electrolytes
Solution Approach 1:
The patent modifies the chemical structure of detection materials by introducing specific functional groups (imine substituents and lone pair-bearing atoms) that change the material's properties to enable stable operation in liquid electrolyte media while maintaining detection effectiveness
Solution Approach 2:
The invention uses composite materials combining aromatic rings with imine substituents and lone pair-bearing atoms, creating a multifunctional material that provides both structural stability in liquid media and effective complexation capability for alkaline element detection
2Measurement precision
If local lithium ion concentration measurement is implemented, then battery degradation can be monitored, but the complexity of the detection system increases
Solution Approach 1:
The detection material performs self-detection through intrinsic optical properties (absorbance or fluorescence changes) upon complexation with lithium ions, eliminating the need for complex external detection systems or multiple measurement components
Solution Approach 2:
The patent replaces complex mechanical or electrical detection systems with a chemical-optical detection mechanism where the material's optical properties change in response to lithium ion concentration, simplifying the overall system architecture
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
These materials enable precise detection and quantification of alkaline elements, improving battery management by monitoring lithium ion concentration, thus preventing premature degradation and ensuring safe operation.
Implementation Method 1
by a mechanism involving complexation and a change in a given optical quantity
Implementation Method 2
a change in a given optical quantity (for example, absorbance or fluorescence)
Implementation Method 3
a change in a given optical quantity (for example, absorbance or fluorescence)
Data Source
AI summary
The invention relates to a material usable for the detection of at least one alkali element in cationic form chosen from polymers or inorganic materials, said material being functionalized by at least one group, referred to as group A, comprising one or more aromatic rings, the or all or part of said aromatic rings comprising at least one imine substituent and the or all or part of said aromatic rings comprising at least one atom bearing a lone pair within the or all or part of said rings and/or at least one other substituent other than an imine substituent comprising at least one atom bearing a lone pair.