Electric Double Layer Battery Structure for Lower Internal Resistance

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Solution Overview

Problem

Conventional ionic batteries face challenges in reducing internal resistance, which limits their output voltage and efficiency.

Innovation Solution

The introduction of a micro-capacitor structure formed by protrusion electrodes on the cathode electrode, allowing for electron conduction through an electric double layer capacitor between the cathode and anode electrodes, enhancing electronic conductivity within the battery.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If conventional ionic battery structure is used, then battery can operate with simple structure, but internal resistance is high and output voltage is limited

Engineering Contradiction:
Improveinternal resistanceVSAvoidbattery structure
Core Design Contradiction:
Loss of energyVSDevice complexity

Solution Approach 1:

The patent combines ionic conduction and electron conduction functions into a single battery structure. The electric double layer formed between closely spaced electrodes serves dual purposes: maintaining ionic separation while enabling electron conduction pathways, thereby reducing internal resistance without requiring completely separate systems

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The electric double layer acts as an intermediary mechanism between the ionic electrolyte and electron-conducting electrodes. It enables charge transfer and electron conduction while maintaining the ionic conductive pathway, serving as a mediator that resolves the contradiction between simple structure and low internal resistance

Inventive Principle:
Principle #24Intermediary (Mediator)

2Loss of energy

If electrodes are placed close to each other to reduce internal resistance, then electron conduction improves, but short-circuiting may occur

Engineering Contradiction:
Improveinternal resistanceVSAvoidshort-circuit prevention
Core Design Contradiction:
Loss of energyVSReliability

Solution Approach 1:

The patent extracts the separator function from the traditional mechanical separator and replaces it with the electric double layer formed at the electrode-electrolyte interface. This extracted function prevents short-circuiting through electrostatic repulsion and dipole alignment while allowing electrodes to be in close proximity for improved electron conduction

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the fundamental parameter of charge carrier mechanism by introducing electron conduction through the electric double layer. This parameter change enables close electrode spacing for reduced internal resistance while the unique properties of the electric double layer (dipole orientation, charge distribution) prevent short-circuiting

Inventive Principle:
Principle #35Parameter changes

3Reliability

If dipole electric double layer is formed to prevent short-circuiting, then electrode proximity is enabled, but electron conduction efficiency is reduced

Engineering Contradiction:
Improveshort-circuit preventionVSAvoidelectron conduction efficiency
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The patent applies local quality by creating regions of different electric double layer characteristics. Areas with optimized dipole orientation and thickness enable efficient electron conduction, while other regions maintain stronger repulsive fields for short-circuit prevention. This local differentiation resolves the contradiction between reliability and conduction efficiency

Inventive Principle:
Principle #3Local quality

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 significantly reduces internal resistance, enabling a power generation capacity increase of over 2 times compared to conventional designs, with electrons flowing from the cathode to the anode via an avalanche amplification effect.

Implementation Method 1

an electric double layer is formed between electrodes and the electrolyte, and a separator-less battery can be formed without short-circuiting even if a pair of electrodes are brought close to each other

Methodology Applied
Scientific EffectElectric double layer: Capacitance

Implementation Method 2

when electrons flow into the depletion layer, there is found a phenomenon in which avalanche amplification occurs

Methodology Applied
Scientific EffectAvalanche amplification: Avalanche Breakdown

Implementation Method 3

hydrogen peroxide is a dipole compound and has a high dipole efficiency, it has been found that, when an electrolyte containing hydrogen peroxide is used although the electrolyte has an ionic conductive property while both electrodes have an electron conductive property in the battery or cell, a dipole electric double layer is formed between electrodes and the electrolyte

Methodology Applied
Scientific EffectDipole moment: Polarisation

Implementation Method 4

a current is generated from the cathode to the anode by ion conduction in the electrolytic solution

Methodology Applied
Scientific EffectIon conduction: Conduction (electrical)

Implementation Method 5

an electromotive force is generated by an electrode potential difference between both electrodes, and an electron exchange is performed by a reaction where electrons are received by an oxidation reaction at an interface between the electrode and the electrolytic solution on the anode side

Methodology Applied
Scientific EffectOxidation reaction: Oxidation

Implementation Method 6

electrons are received by an oxidation reaction at an interface between the electrode and the electrolytic solution on the anode side and also by a transfer reaction of electrons for a reduction reaction at an interface between the electrode and the electrolytic solution on the cathode side

Methodology Applied
Scientific EffectReduction reaction: Reduction

Data Source

PatentUS20250364612A1Battery having electron conduction function via electric double layer capacitor
Publication Date: 2025.11.27 CROSS TECHNOLOGY LABO CO LTD
  • US20250364612A1 patent drawing
  • US20250364612A1 patent drawing
  • US20250364612A1 patent drawing

AI summary

The present invention provides an ionic conductive battery that exhibits an electron conductivity via a micro-capacitor formed between battery electrodes, wherein the ionic conduction battery comprises a dipole micro-capacitor containing hydrogen peroxide and being formed between a cathode electrode made of copper or alloy thereof and an anode electrode made from a metal or an alloy that forms an electrode potential difference, the electrode potential of the anode electrode being more base than that of the cathode electrode, and said micro-capacitor forming a structure that exhibits a property via which electrons flow from the cathode electrode to the anode electrode. Said ionic conduction battery causes current amplification that resembles avalanche amplification.