Battery Apparatus Thermal Insulation Segmentation

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Solution Overview

Problem

Conventional battery apparatuses have limited space for heat insulation, leading to inadequate thermal suppression and increased risk of heat diffusion and thermal runaway, due to the restricted size and insufficient thickness of heat insulating pads.

Innovation Solution

The battery apparatus design includes heat insulating pads between adjacent battery units, with batteries within each unit contacting each other maximally, and optionally featuring a buffering frame and heat insulating layer, to provide a thicker and more effective insulation zone, reducing the risk of thermal runaway and expansion forces.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If heat insulating pads are made thicker to improve thermal suppression, then thermal runaway risk is reduced, but the limited space in the length direction prevents sufficient thickness

Engineering Contradiction:

Improvethermal suppression effectVSAvoidheat insulating pad thickness

Core Design Contradiction:

ReliabilityVSLength of moving object

Solution Approach 1:

The patent divides the battery apparatus into multiple battery units, each containing a subset of batteries. Heat insulating pads are strategically placed between adjacent battery units rather than uniformly distributed, segmenting the thermal management approach to achieve sufficient insulation thickness in critical areas while maintaining overall compactness.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transitions from one-dimensional space utilization to three-dimensional arrangement by having batteries contact each other with their largest surfaces within battery units, while maintaining spacing between units through heat insulating pads. This dimensional reorganization optimizes space utilization and enables thicker insulation where needed.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Volume of moving object

If batteries are arranged with standard matched sizes, then space utilization is optimized, but the remaining space after deducting battery thickness is insufficient for heat insulation

Engineering Contradiction:

Improvespace utilizationVSAvoidheat insulation capability

Core Design Contradiction:

Volume of moving objectVSReliability

Solution Approach 1:

The battery apparatus is segmented into multiple battery units with heat insulating pads between them. This segmentation creates dedicated insulation zones without compromising overall space utilization, as each unit maintains compact battery arrangement while inter-unit spacing provides thermal protection.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Different spatial regions are assigned different functions: within battery units, batteries are closely arranged for space efficiency, while between battery units, heat insulating pads are placed for thermal protection. This local differentiation of quality optimizes both space utilization and heat insulation capability in their respective zones.

Inventive Principle:

Principle #3Local quality

3Reliability

If heat insulating space is allocated between single strings, then thermal management is provided, but the thermal suppression effect is poor and heat diffusion risk increases

Engineering Contradiction:

Improvethermal managementVSAvoidheat diffusion risk

Core Design Contradiction:

ReliabilityVSObject-affected harmful factors

Solution Approach 1:

The patent segments the battery system into discrete battery units separated by heat insulating pads. This segmentation creates isolated thermal zones that prevent heat diffusion between units, while each unit maintains its own thermal management, thereby reducing overall heat diffusion risk.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Heat insulating pads serve as intermediary elements between adjacent battery units. These pads act as thermal barriers that mediate heat transfer, providing sufficient thermal suppression effect and preventing direct heat diffusion between battery units while maintaining structural integrity.

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

This design enhances thermal suppression, reduces the risk of heat diffusion, and improves safety by allowing thicker heat insulating pads within the same module space, effectively managing thermal runaway and expansion forces while optimizing space utilization.

Implementation Method 1

A heat insulating pad is disposed between the adjacent battery units

Methodology Applied

Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 2

at least a pair of the adjacent two batteries belonging to the same battery unit contact each other with largest surfaces of the batteries

Methodology Applied

Scientific EffectThermal conduction: Conduction (thermal)

Data Source

PatentEP4095988A1Battery apparatus

Publication Date: 2022.11.30 CALB GROUP CO LTD

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AI summary

A battery apparatus includes at least two battery units (110). Each of the battery units (110) includes at least two batteries (111). A heat insulating pad (200) is disposed between the adjacent two battery units (110), and at least a pair of the adjacent two batteries (111) belonging to a same battery unit (110) contact each other with largest surfaces of the batteries (111).