Concrete Battery Cabinet With Fire-Resistant Inner Layers
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Solution Overview
Problem
During the storage or transportation of batteries, factors like overcharging, impacts, and environmental defects can cause the separator to fail, leading to short circuits and high-temperature chemical reactions, resulting in fires and damage to adjacent devices.
Innovation Solution
A cabinet with a concrete main body, a heat-resistant layer, and a flame-retardant layer is designed, where the concrete main body provides excellent bending resistance and thermal insulation, and the heat-resistant and flame-retardant layers are strategically positioned to contain and mitigate high temperatures and flames.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If metal containers are used for energy storage, then ease of loading and transportation is improved, but weather resistance and fire safety deteriorate
Solution Approach 1:
The patent employs a composite structure combining metal container walls with fire-resistant materials (such as fire-resistant boards or insulation layers). This multi-material construction maintains the mechanical strength and portability of metal while adding fire safety and weather resistance properties that metal alone cannot provide.
Solution Approach 2:
The fire-resistant material is positioned as an inner layer within the metal container structure, creating a nested configuration where the fire-resistant layer is enclosed by the metal walls. This nested design allows the fire-resistant material to provide protection without significantly increasing the external dimensions or weight of the container.
2Reliability
If thicker fire-resistant layers are added to the cabinet, then fire safety is improved, but weight increases
Solution Approach 1:
The fire-resistant material is applied selectively to specific areas where fire risk is highest, such as the inner surfaces of the cabinet walls adjacent to battery compartments. This localized application provides adequate fire protection without requiring thick layers throughout the entire cabinet structure, thereby minimizing weight increase.
Solution Approach 2:
The patent optimizes the thickness parameter of the fire-resistant layer to achieve the minimum required fire safety performance. By carefully selecting and testing different thickness values, the design finds the optimal balance between fire resistance capability and weight constraints, avoiding both under-protection and excessive weight.
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 cabinet effectively confines high temperatures and flames, preventing fire accidents and maintaining structural integrity even in extreme conditions, while reducing weight and enhancing safety and convenience in disaster relief.
Implementation Method 1
a heat resistant layer, and a flame retardant layer. The heat resistant layer is disposed on one or more inner surfaces of the plurality of walls in the accommodating space
Implementation Method 2
The flame retardant layer is disposed on the heat resistant layer and exposed to the accommodating space
Data Source
AI summary
The present disclosure provides a cabinet and an energy storage apparatus. The cabinet includes a concrete main body, a heat resistant layer, and a flame retardant layer. The concrete main body includes a plurality of walls to form an accommodating space. The heat resistant layer is disposed on one or more inner surfaces of the plurality of walls in the accommodating space. The flame retardant layer is disposed on the heat resistant layer and exposed to the accommodating space. A volumetric density of the heat resistant layer is lower than a volumetric density of the flame retardant layer.