Battery Pack Indicator Circuit Wireless Monitoring

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Solution Overview

Problem

Existing battery packs require manual interaction for testing and do not efficiently utilize internal volume for advanced processing and communication capabilities, limiting their functionality and space for electrochemical cells.

Innovation Solution

A battery pack design incorporating an integrated circuit and antenna-based indicator circuit that allows wireless communication of battery characteristics, such as voltage or capacity, without reducing the internal volume available for electrochemical cells, enabling remote monitoring and advanced processing without manual intervention.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a battery pack includes advanced processing and communication capabilities (integrated circuit and antenna), then functionality is improved, but internal volume for electrochemical cells is reduced

Engineering Contradiction:
ImprovefunctionalityVSAvoidinternal volume
Core Design Contradiction:
Adaptability or versatilityVSVolume of stationary object

Solution Approach 1:

The patent positions the indicator circuit components (integrated circuit and antenna) on the external surface of the battery pack case rather than inside the internal volume. This dimensional relocation allows advanced functionality to be added without consuming the precious internal space needed for electrochemical cells, directly resolving the volume-functionality contradiction

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Measurement precision

If a thermochromic battery tester is used to determine battery capacity, then measurement capability is improved, but manual interaction is required which reduces ease of operation

Engineering Contradiction:
Improvebattery capacity measurementVSAvoidmanual interaction
Core Design Contradiction:
Measurement precisionVSEase of operation

Solution Approach 1:

The battery pack incorporates an autonomous indicator circuit with integrated circuit and antenna that automatically determines and communicates battery characteristics (capacity, voltage, temperature) without requiring consumer intervention. The system performs self-measurement and self-reporting, eliminating the need for manual tester operation while maintaining accurate measurement capabilities

Inventive Principle:
Principle #25Self-service

3Extent of automation

If an indicator circuit is integrated into the battery pack, then automation is improved, but device complexity increases

Engineering Contradiction:
Improveautomatic battery monitoringVSAvoidcircuit integration
Core Design Contradiction:
Extent of automationVSDevice complexity

Solution Approach 1:

The patent merges the indicator circuit components (integrated circuit and antenna) directly onto the external surface of the battery pack case, combining multiple functions (power management, communication, indication) into a single integrated assembly. This consolidation achieves automation while managing complexity through functional integration rather than separate components

Inventive Principle:
Principle #5Merging (Combining)

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

Enables convenient, non-invasive battery condition monitoring and communication of battery characteristics to readers like smartphones, enhancing functionality while maintaining a high battery-to-internal volume ratio, thus optimizing space and functionality.

Implementation Method 1

an antenna... that modulates, and in some instances emits, a wireless communication signal

Methodology Applied
Scientific EffectElectromagnetic radiation: Electromagnetic Induction

Implementation Method 2

The indicator circuit includes an integrated circuit and an antenna

Methodology Applied
Scientific EffectElectrical signal processing: Electromagnetic Induction

Data Source

PatentEP3186843B1Battery pack including an indicator circuit
Publication Date: 2018.12.26 DURACELL US OPERATIONS INC
  • EP3186843B1 patent drawingFigure 1
  • EP3186843B1 patent drawingFigure 2
  • EP3186843B1 patent drawingFigure 3

AI summary

The invention is directed toward a battery pack. The battery pack includes at least one electrochemical cell; a case; a plate; an indicator circuit; and a battery-to-internal volume ratio. The case includes at least one open end. The plate is placed over the at least one open end. The plate includes a terminal plate, a base plate, or any combination thereof. The indicator circuit includes an integrated circuit and an antenna. The indicator circuit is affixed to the plate. The battery-to-internal volume ratio is greater than about 0.52.