Battery Cell Thermal Management Layout for Higher Energy Density
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Solution Overview
Problem
Current battery technologies face challenges in improving energy density while effectively managing thermal issues, particularly during fast charging, which can lead to safety concerns and reduced battery lifespan.
Innovation Solution
Incorporating a thermal management component connected to the largest surface area of each battery cell, with a specific size ratio that optimizes space utilization and heat exchange, allowing for efficient temperature regulation without the need for additional structural elements within the battery.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If thermal management components are added to manage battery temperature, then thermal management performance is improved, but space utilization rate decreases and energy density is reduced
Solution Approach 1:
The patent merges the thermal management component with the battery cell structure by making the thermal management component form part of the battery cell assembly. Specifically, the thermal management component is integrated with the electrode assembly and separator, combining thermal management function with the existing battery structure without requiring separate dedicated space, thereby improving space utilization rate while maintaining thermal management effectiveness
Solution Approach 2:
The patent makes the thermal management component serve multiple functions: it acts as both a thermal management device for temperature control and as a structural component of the battery cell. The component can function as part of the electrode assembly, separator, or housing structure, allowing one component to fulfill both thermal management and structural roles, thus eliminating the need for additional separate structures
2Reliability
If thermal management components are added to prevent overheating, then safety is improved, but device complexity increases
Solution Approach 1:
The patent combines the thermal management component with existing battery structures such as the electrode assembly, separator, or housing. By integrating thermal management functionality into these existing components rather than adding separate dedicated thermal management systems, the patent reduces structural complexity while maintaining safety through effective temperature control during charging operations
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 approach enhances energy density and ensures effective thermal management, preventing overheating and maintaining optimal temperatures during charging, thereby improving battery performance and safety.
Implementation Method 1
a flow channel is provided between the first thermally conductive plate and the second thermally conductive plate, and the flow channel is configured to accommodate a fluid for adjusting a temperature of the battery cell
Implementation Method 2
the flow channel is configured to accommodate a fluid for adjusting a temperature of the battery cell
Data Source
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AI summary
Provided are a battery, a power consumption device, a method and a device for producing a battery. The battery includes: a plurality of battery cells arranged along a first direction; a thermal management component extending along the first direction and being connected to a first wall of each battery cell among the plurality of battery cells, the first wall being a wall with a largest surface area of the battery cell, and the thermal management component being configured to adjust a temperature of the battery cell; and where in the second direction, a size H1 of the thermal management component and a size H2 of the first wall satisfy: 0.1≤H1/H2≤2, and the second direction is perpendicular to the first direction and parallel to the first wall. A technical solution of an embodiment of the present application may improve the energy density of the battery while meeting the requirements of thermal management of the battery, thereby improving the performance of the battery.