Supercapacitor Aerosol Article for Compact Heating Control

Solution Overview

Problem

Existing heated aerosol generating devices are bulky and heavy due to the need for a significant power source, such as a battery, which also limits the control over the heating process and the characteristics of the generated aerosol.

Innovation Solution

Incorporating a capacitor, specifically a supercapacitor, within the aerosol generating article that stores electrical charge and generates an aerosol upon heating, reducing the need for a large external power source and allowing for controlled heating and optimized aerosol characteristics.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Power

If a battery is used as the power source in heated aerosol generating devices, then the device can provide sufficient power for heating, but the device becomes bulky and heavy

Engineering Contradiction:

ImprovepowerVSAvoidweight

Core Design Contradiction:

PowerVSWeight of moving object

Solution Approach 1:

The power source function is segmented between the capacitor in the article and the battery in the device. The capacitor provides the high power density needed for heating, while the battery provides only minimal power for control electronics, thereby reducing the overall weight and size of the device.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The power delivery mechanism transitions from a single large battery to a dual-component system where the capacitor in the article handles high-power delivery and the battery in the device handles low-power control functions, effectively redistributing the power burden across different spatial and functional dimensions.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Power

If a battery is used as the power source in heated aerosol generating devices, then the device can provide sufficient power for heating, but the device size increases

Engineering Contradiction:

ImprovepowerVSAvoidsize

Core Design Contradiction:

PowerVSVolume of moving object

Solution Approach 1:

The power source function is segmented between the capacitor in the article and the battery in the device. The capacitor provides the high power density needed for heating, while the battery provides only minimal power for control electronics, thereby reducing the overall weight and size of the device.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The power delivery mechanism transitions from a single large battery to a dual-component system where the capacitor in the article handles high-power delivery and the battery in the device handles low-power control functions, effectively redistributing the power burden across different spatial and functional dimensions.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

3Volume of moving object

If a capacitor is used in the aerosol generating article, then the device size and weight are reduced, but the control over heating process must be maintained

Engineering Contradiction:

ImprovesizeVSAvoidcontrol

Core Design Contradiction:

Volume of moving objectVSEase of operation

Solution Approach 1:

A control circuit acts as an intermediary between the user interface and the capacitor, managing the discharge process to achieve precise temperature control and optimized aerosol generation while maintaining ease of operation despite the capacitor-based power system.

Inventive Principle:

Principle #24Intermediary (Mediator)

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 use of a supercapacitor in the aerosol generating article results in a smaller, lighter device with improved control over heating and enhanced aerosol quality, while potentially eliminating the need for a separate power source.

Implementation Method 1

electrical charge is stored in the electrical field between the electrodes and the capacitance is a function of the surface area of the electrodes, the distance between them, and the dielectric constant of the separator material

Methodology Applied

Scientific EffectCapacitance: Capacitance

Implementation Method 2

the electrolyte which, when heated, generates an aerosol for inhalation by a user

Methodology Applied

Scientific EffectEvaporation: Evaporation

Implementation Method 3

Heating the capacitor therefore results in the electrolyte that is contained within the capacitor being converted into an aerosol and the aerosolised electrolyte is then inhaled by the user

Methodology Applied

Scientific EffectAerosol formation: Aerosol

Implementation Method 4

When the capacitor is charged by an external circuit connected to the pair of electrodes, cations in the electrolyte migrate toward the negative electrode and the anions migrate to the positive electrode, while the electrons travel through the external circuit from the negative to the positive electrode. Two layers of charge with opposite polarity (an electric double-layer) are therefore formed at the interfaces with the electrodes.

Methodology Applied

Scientific EffectElectric double-layer formation: Electrostatic Induction

Implementation Method 5

When the capacitor is charged by an external circuit connected to the pair of electrodes, cations in the electrolyte migrate toward the negative electrode and the anions migrate to the positive electrode, while the electrons travel through the external circuit from the negative to the positive electrode

Methodology Applied

Scientific EffectJoule heating: Joule Heating

Data Source

PatentUS20250351877A1Aerosol Generating Article Comprising a Capacitor

Publication Date: 2025.11.20 JT INTERNATIONAL SA

AI summary

An aerosol generating article that includes a capacitor. The capacitor comprises an electrolyte which, when heated, generates an aerosol for inhalation by a user.