Battery Container Fire-Fighting Layout for Space-Constrained Packs

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Solution Overview

Problem

The integration of components in a 20-foot 5 MWh liquid-cooled energy storage container exceeds standard sizes due to the need for a large-scale fire-fighting device, necessitating an additional equipment compartment, which complicates space optimization.

Innovation Solution

A miniaturized fire-fighting system is dispersed among battery clusters and the top cover, eliminating the need for a separate compartment and optimizing space utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a large-scale fire-fighting device is used, then fire-fighting capability is improved, but space utilization deteriorates

Engineering Contradiction:

Improvefire-fighting capabilityVSAvoidspace utilization

Core Design Contradiction:

ReliabilityVSVolume of moving object

Solution Approach 1:

The patent divides the single large-scale fire-fighting device into multiple small-scale fire-fighting devices. Each small device is dispersedly arranged among battery clusters, providing distributed fire protection. This segmentation maintains fire-fighting capability while significantly reducing the space each device occupies, eliminating the need for dedicated equipment compartments.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The patent transitions from vertical placement (requiring height space) to horizontal/dispersed placement among battery clusters. Small-scale fire-fighting devices are arranged in the interstitial spaces between battery clusters, utilizing three-dimensional space more efficiently and avoiding the need for separate equipment compartments.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

2Ease of manufacture

If a separate equipment compartment is provided, then fire-fighting device placement is simplified, but container space optimization deteriorates

Engineering Contradiction:

Improvedevice placementVSAvoidcontainer space

Core Design Contradiction:

Ease of manufactureVSVolume of moving object

Solution Approach 1:

The patent merges the fire-fighting system with the battery cluster arrangement. Small-scale fire-fighting devices are integrated into the spaces between battery clusters rather than being separated in a dedicated compartment. This integration eliminates the need for separate equipment compartments while maintaining systematic device placement.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The spaces between battery clusters serve dual purposes: maintaining battery cluster spacing for thermal management and accommodating fire-fighting devices. This multi-functional use of interstitial spaces eliminates the need for dedicated equipment compartments, optimizing overall container space utilization.

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentEP4670800A1Energy storage container

Publication Date: 2025.12.31 EVE ENERGY STORAGE CO LTD

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AI summary

The present application provides an energy storage container including a container body, battery clusters, and a fire-fighting system. The container body includes a top cover and a bottom cover oppositely disposed. The container body is provided with a battery compartment, and the top cover and the bottom cover surround a top portion and a bottom portion of the battery compartment, respectively. The battery clusters are disposed in the battery compartment. The fire-fighting system includes fire-fighting devices uniformly dispersedly arranged among the battery clusters and the top cover.