Battery Pack Heat Dissipation Member and Plate Member Assembly
Solution Overview
Problem
Conventional battery packs face challenges in achieving effective heat dissipation, leading to uneven temperature distribution among battery cells, which can degrade performance and shorten battery life.
Innovation Solution
The battery pack design includes a battery cell assembly with a heat dissipation member and a plate member disposed on the electrodes and side surfaces of the battery cells, within an exterior case, utilizing a tubular structure with no interfaces to ensure uniform heat transfer and prevent local performance degradation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional battery pack design is used, then device complexity is reduced, but heat dissipation effectiveness deteriorates leading to uneven temperature distribution
Solution Approach 1:
The patent combines the heat dissipation member and plate member into an integrated assembly that contacts multiple battery cells simultaneously. This merging of components creates a unified thermal management structure that improves temperature uniformity across the battery pack while avoiding the need for separate, complex individual cell cooling systems.
Solution Approach 2:
The battery pack is divided into multiple battery cell assemblies, each with its own heat dissipation member and plate member configuration. This segmentation allows independent thermal management of each cell group, enabling uniform heat dissipation across the entire pack without requiring a monolithic complex structure.
2Loss of energy
If heat dissipation members are added to improve thermal management, then heat dissipation effectiveness is improved, but device complexity increases
Solution Approach 1:
The plate member serves multiple functions: it provides structural support for the battery cells, acts as a heat dissipation conduit, and maintains mechanical stability of the assembly. This multi-functionality reduces the need for separate components, improving heat dissipation efficiency without proportionally increasing device complexity.
Solution Approach 2:
The heat dissipation member and plate member are constructed from materials with optimized thermal conductivity and mechanical properties. This use of composite or specially engineered materials enhances heat dissipation efficiency while minimizing the number of components needed, as the material itself provides both thermal and structural functions.
3Temperature
If multiple components are used for heat dissipation, then heat dissipation effectiveness is improved, but assembly stability deteriorates
Solution Approach 1:
The heat dissipation member is positioned within or between battery cells, with the plate member providing an outer structural framework. This nested arrangement ensures that thermal management components are securely integrated into the battery assembly, maintaining assembly stability while achieving effective heat dissipation through the nested thermal pathways.
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 heat dissipation, maintains uniform temperatures, and extends battery life by ensuring efficient heat transfer and assembly stability, thereby improving the reliability and performance of the battery pack.
Implementation Method 1
a heat dissipation member and a plate member disposed on at least one of (1) at least one electrode of the battery cell and (2) a side surface of the battery cell in this order along a direction in which the battery cell assembly is assembled in the exterior case
Data Source
AI summary
A battery pack is provided. The battery pack includes a battery cell assembly including at least a battery cell, a heat dissipation member, and a plate member; and an exterior case. The heat dissipation member and the plate member are disposed in this order on one or both of an electrode of the battery cell and a side surface of the battery cell along a direction in which the battery cell assembly is assembled in the exterior case.