Liquid-Cooled Battery Cell Layout for Higher Energy Density
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Solution Overview
Problem
Existing energy-storage prefabricated cabins have low energy density due to the use of complex structural members that occupy significant space, reducing the number of battery cells and power storage capacity.
Innovation Solution
An energy-storage apparatus with a liquid-cooling structure that directly integrates battery cells, eliminating intermediate module and pack integration processes, and reducing structural members, allowing for increased cell density and improved heat dissipation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional structural members (module frames, battery frames, limiting assemblies) are used for integrating battery packs, then structural stability and safety are improved, but the utilization rate of installation space decreases and the number of battery cells is reduced
Solution Approach 1:
The patent merges the functions of module frames, battery frames, and limiting assemblies into an integrated structural design. The battery cells are directly mounted on the floor of the container, eliminating the need for separate structural members. This consolidation maintains structural stability while maximizing the utilization of installation space, allowing for a greater number of battery cells to be accommodated.
Solution Approach 2:
The floor structure of the container serves multiple functions: it provides structural support, acts as a mounting surface for battery cells, and eliminates the need for separate battery frames. This multi-functional design reduces the number of components required while maintaining the necessary structural integrity and safety.
2Reliability
If multiple intermediate integration processes (module to battery pack assembly) are used, then structural stability is improved, but device complexity and production cost increase
Solution Approach 1:
The patent extracts and eliminates the intermediate integration processes between modules and battery packs. By directly mounting battery cells on the container floor, the complex multi-stage assembly process is simplified into a single integration step, reducing device complexity and production cost while maintaining structural stability.
3Strength
If structural members occupy large space, then structural support is improved, but the utilization rate of installation space decreases
Solution Approach 1:
The structural support function is merged with the floor structure of the container. The floor itself serves as the mounting surface for battery cells, eliminating the need for separate structural members that would occupy installation space. This approach maintains necessary structural support while maximizing the area available for battery cell installation.
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
Enhances energy density, improves safety, and reduces production costs by increasing the number of battery cells and simplifying assembly processes, while ensuring effective heat management and stability during transportation.
Implementation Method 1
heat generated from the battery cells can be carried away through surfaces where the liquid-cooling structure is in contact with the battery cells
Implementation Method 2
heat generated from the battery cells can be carried away through surfaces where the liquid-cooling structure is in contact with the battery cells
Data Source
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AI summary
An energy-storage apparatus and an energy-storage system are disclosed in the disclosure. The energy-storage apparatus includes a box body and a battery module. The box body has a length direction and defines an installation space. The battery module includes a liquid-cooling structure and multiple battery cells positioned in the installation space. The liquid-cooling structure is connected to the box body and has a first side surface and a second side surface that are positioned facing towards each other in the length direction, at least one of the multiple battery cells is disposed on the first side surface, and at least another of the multiple battery cells is disposed on the second side surface.