Ionic Copolymer Electrolyte Membranes With Tuned Ionizable Moieties

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Solution Overview

Problem

The performance of polymer-based electrolyte membranes in electrochemical cells is affected by their physical and chemical characteristics, which need to be improved for enhanced efficiency.

Innovation Solution

The development of compositions comprising first and second polymeric structures, each optionally including ionizable or ionic moieties, and the use of Friedel-Crafts alkylation agents to form ionic polymers and copolymers with reactive groups that are substituted with ionic moieties, creating polymer-based electrolyte membranes for electrochemical cells.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If conventional polymer structures are used in electrolyte membranes, then manufacturing is simpler, but performance and efficiency are insufficient

Engineering Contradiction:

Improveperformance of electrolyte membraneVSAvoidpolymer structure complexity

Core Design Contradiction:

ReliabilityVSDevice complexity

Solution Approach 1:

The patent employs composite polymer structures combining aromatic rings, electron-withdrawing groups, and ionizable/ionic moieties in a single polymeric chain. This composite approach integrates multiple functional groups that collectively enhance membrane performance through improved ion conductivity, mechanical strength, and chemical stability, resolving the contradiction between simple manufacturing and high performance.

Inventive Principle:

Principle #40Composite materials

Solution Approach 2:

The patent introduces specific functional groups at localized positions within the polymer structure. Electron-withdrawing groups are positioned adjacent to ionizable moieties to modulate their dissociation behavior, while aromatic rings provide structural rigidity at specific locations. This localized functional distribution optimizes performance without requiring complete structural redesign.

Inventive Principle:

Principle #3Local quality

2Ease of manufacture

If polymer structure is simplified, then ease of manufacture increases, but performance enhancement is limited

Engineering Contradiction:

Improvepolymer synthesis easeVSAvoidelectrolyte membrane performance

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent modifies chemical parameters of the polymer structure by incorporating electron-withdrawing groups with specific electronic properties and ionizable moieties with tunable pKa values. These parameter changes enhance performance metrics such as ion conductivity and membrane stability while maintaining synthetic accessibility through conventional polymerization methods.

Inventive Principle:

Principle #35Parameter changes

Solution Approach 2:

The patent divides the polymer structure into distinct functional segments: aromatic ring segments for structural integrity, electron-withdrawing group segments for electronic modulation, and ionizable moiety segments for ion conduction. This segmentation allows each component to be optimized independently while maintaining overall manufacturability through modular synthesis approaches.

Inventive Principle:

Principle #1Segmentation

3Productivity

If ionizable and ionic moieties are incorporated to enhance performance, then efficiency improves, but structural complexity increases

Engineering Contradiction:

Improveelectrochemical cell efficiencyVSAvoidpolymer composition complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent merges multiple functional groups—aromatic rings, electron-withdrawing groups, and ionizable/ionic moieties—into a single integrated polymeric structure. This merging consolidates multiple performance-enhancing functions into one material system, improving electrochemical cell efficiency while avoiding the complexity of multi-component composite systems.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent designs the polymeric structure to perform multiple functions simultaneously: the aromatic rings provide structural framework, electron-withdrawing groups modulate electronic properties and enhance ion dissociation, and ionizable/ionic moieties enable ion conduction. This multi-functionality within a single polymer structure enhances productivity without requiring separate components for each function.

Inventive Principle:

Principle #6Universality (Multi-functionality)

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 proposed compositions enhance the performance of electrochemical cells by improving the properties of the polymer-based electrolyte membranes, leading to better efficiency and functionality.

Implementation Method 1

reacting an aromatic group with a Friedel-Crafts alkylation agent, thereby forming a composition

Methodology Applied

Scientific EffectFriedel-Crafts alkylation: Chemical Bonding

Implementation Method 2

at least one of these includes an ionizable moiety or an ionic moiety

Methodology Applied

Scientific EffectIonization: Ionisation

Data Source

PatentUS20260002028A1Ionic polymers and copolymers

Publication Date: 2026.01.01 TWELVE BENEFIT CORP

AI summary

The present disclosure relates to compositions including a first polymeric structure having a structure of Formula (I), (II), (III), (IV), or (V):or a salt thereof and a second polymeric structure having a structure of Formula (X) or Formula (XI):or a salt thereof, in which at least one of these can include an ionizable moiety or an ionic moiety, for use in an electrochemical cell. Materials, devices, and methods using such compositions are also described.