Modular LFP Power Case With Heat-Dissipating Battery Housing

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Solution Overview

Problem

Existing portable power solutions for military applications do not adequately address heat dissipation and modularity, leading to discomfort, device damage, and increased thermal detection risk, while lithium ion batteries pose shipping restrictions due to overheating risks.

Innovation Solution

A portable power case with removable batteries and integrated heat-shielding or heat-dissipating materials that allow selective battery removal and simultaneous charging/supplying power, using a PCB with control electronics for state of charge monitoring and battery management, and incorporating heat-dissipating layers to reduce thermal exposure.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Use of energy by moving object

If lithium ion batteries are used in portable power cases, then power capacity and energy density are improved, but shipping restrictions and safety risks increase due to overheating concerns

Engineering Contradiction:

Improvepower capacityVSAvoidoverheating risk

Core Design Contradiction:

Use of energy by moving objectVSObject-affected harmful factors

Solution Approach 1:

The patent extracts the battery from the portable power case housing, allowing the battery to be removed separately. This enables compliant shipping of the housing without batteries and provides flexibility in battery selection and replacement, directly addressing the shipping restrictions and safety concerns associated with lithium ion batteries

Inventive Principle:

Principle #2Taking out (Extraction)

Solution Approach 2:

The patent changes the chemical composition parameter of the battery from conventional lithium ion to lithium iron phosphate. This parameter change reduces the overheating risk and improves thermal stability while maintaining adequate power capacity, thereby resolving the contradiction between energy density and safety

Inventive Principle:

Principle #35Parameter changes

2Power

If heat-generating devices are used, then power output and functionality are improved, but thermal detection risk and user comfort deteriorate

Engineering Contradiction:

Improvepower outputVSAvoidthermal detection risk

Core Design Contradiction:

PowerVSObject-affected harmful factors

Solution Approach 1:

The patent incorporates heat-dissipating materials that convert the harmful heat generated by the battery and electronics into beneficial thermal management. These materials actively draw heat away from critical components and dissipate it safely, reducing the thermal detection risk while maintaining full power output capability

Inventive Principle:

Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

The patent introduces heat-dissipating materials as intermediary elements between the heat-generating components (battery, electronics) and the external environment. These intermediaries facilitate controlled heat transfer and dissipation, reducing thermal signatures without compromising device functionality

Inventive Principle:

Principle #24Intermediary (Mediator)

3Reliability

If batteries are permanently installed in portable power cases, then structural integrity and connection reliability are improved, but modularity and flexibility deteriorate

Engineering Contradiction:

Improveconnection reliabilityVSAvoidmodularity

Core Design Contradiction:

ReliabilityVSAdaptability or versatility

Solution Approach 1:

The patent segments the portable power case into distinct modular components: a housing with integrated electronics and connectors, and separately removable batteries. This segmentation maintains reliable electrical connections through dedicated connector interfaces while enabling full modularity for battery replacement and compliant shipping

Inventive Principle:

Principle #1Segmentation

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 solution provides effective heat dissipation, reduces thermal detection risk, allows modular battery use, and complies with shipping regulations by enabling separate transport of batteries, ensuring reliable power supply and enhanced safety.

Implementation Method 1

The housing may include a heat-dissipating material to reduce thermal exposure to the batteries and/or electronic components

Methodology Applied

Scientific EffectHeat conduction: Conduction (thermal)

Implementation Method 2

The portable power case may include at least one lithium iron phosphate (LFP) battery

Methodology Applied

Scientific EffectElectrochemical energy conversion: Battery (electricity)

Data Source

PatentUS12355286B2Portable power case with lithium iron phosphate battery

Publication Date: 2025.07.08 LAT ENTERPRISES INC

AI summary

Systems, methods, and articles for a portable power case are disclosed. The portable power case is comprised of at least one battery and at least one PCB. The portable power case has at least one USB port and at least two access ports, at least two leads, or at least one access port and at least one lead. The portable power case is operable to supply power to an amplifier, a radio, a wearable battery, a mobile phone, and a tablet. The portable power case is operable to be charged using solar panels, vehicle batteries, AC adapters, non-rechargeable batteries, and generators. The portable power case provides for modularity that allows the user to disassemble and selectively remove the batteries installed within the portable power case housing.