Ionic-Liquid Metal Oxide Composite for Conductive Ester Electrolytes

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

Ester-type solvents decompose when in contact with metal oxides, leading to a decrease in electrical conductivity in composites.

Innovation Solution

A composite is formed with a metal oxide and an ester-type solvent where an ionic liquid is attached to the metal oxide surface, with specific ratios and volumes of the ionic liquid and metal oxide to minimize direct contact between the ester-type solvent and the metal oxide, and the inclusion of a fluorine atom in the ionic liquid's molecular structure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If ester-type solvent is used in contact with metal oxide, then the composite can be formed with good processability, but the ester-type solvent decomposes leading to decreased electrical conductivity

Engineering Contradiction:

Improveprocessability of compositeVSAvoidelectrical conductivity of composite

Core Design Contradiction:

Ease of manufactureVSReliability

Solution Approach 1:

The patent introduces an ionic liquid as an intermediary substance between the ester-type solvent and the metal oxide. The ionic liquid attaches to the metal oxide surface first, forming a protective interface layer that prevents direct contact between the ester-type solvent and metal oxide, thereby suppressing decomposition reactions while maintaining the composite's processability and electrical conductivity

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The ionic liquid creates an inert protective environment around the metal oxide surface. By forming a stable interface layer with high chemical stability, the ionic liquid shields the metal oxide from reacting with the ester-type solvent, effectively creating a chemically inert zone that preserves electrical conductivity

Inventive Principle:

Principle #39Inert atmosphere (Inert environment)

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

This configuration suppresses the decomposition of the ester-type solvent, ensuring high electrical conductivity in the composite, sheet, electrochemical element, and power storage device.

Implementation Method 1

an ionic liquid attaches to the surface of the metal oxide

Methodology Applied

Scientific EffectAdsorption: Adsorption

Implementation Method 2

an ester-type solvent in contact with metal oxide decomposes

Methodology Applied

Scientific EffectDecomposition (chemical): Decomposition (biological)

Data Source

PatentUS20250279478A1Composite, sheet, electrochemical element, and power storage device

Publication Date: 2025.09.04 NITERRA CO LTD

AI summary

To provide a composite, a sheet, an electrochemical element, and a power storage device, ensuring electrical conductivity. A composite includes a metal oxide and an ester-type solvent in which an electrolyte salt is dissolved, in which an ionic liquid attaches to the surface of the metal oxide. A sheet contains the composite. An electrochemical element contains the composite. A power storage device includes a positive electrode layer, a negative electrode layer, and a separator which isolates the positive electrode layer from the negative electrode layer, and contains the composite.