Battery Tab Heat Dissipation Using Phase-Change Material
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Solution Overview
Problem
Existing battery assemblies face challenges with heat dissipation during fast charging, leading to reduced charging efficiency and potential user experience issues due to increased local temperatures in electronic devices.
Innovation Solution
The battery assembly incorporates a heat dissipation assembly connected to the tab and battery protection plate, utilizing a phase-change material to absorb heat and reduce temperature, thereby enabling higher current charging and improved efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high charging power is used to achieve fast charging, then charging efficiency is improved, but the battery assembly generates excessive heat
Solution Approach 1:
The patent employs a phase-change material as the heat dissipation medium, which absorbs heat from the battery assembly through phase transition (melting) during fast charging. This allows the battery to maintain lower temperatures while sustaining high charging power, directly resolving the contradiction between charging efficiency and temperature control.
Solution Approach 2:
The heat dissipation assembly acts as an intermediary between the battery cells and the environment, transferring heat away from the battery components. This mediator enables high power charging by providing a dedicated heat management pathway that decouples the charging process from thermal buildup.
2Temperature
If charging current is reduced to prevent overheating, then temperature control is improved, but charging efficiency deteriorates
Solution Approach 1:
The phase-change material provides passive thermal management that operates independently of charging current levels. By utilizing the latent heat of fusion, the material absorbs excess heat without requiring active cooling or current reduction, maintaining both temperature control and high charging efficiency simultaneously.
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 implementation of the phase-change material in the heat dissipation assembly effectively reduces the temperature of the battery assembly, allowing for faster and more efficient charging while enhancing user experience by minimizing local heating issues.
Implementation Method 1
the heat dissipation assembly includes a phase-change material for absorbing heat
Data Source
AI summary
A battery assembly, and an electronic device incorporating a battery assembly, includes at least one cell, a battery protection plate and a heat dissipation assembly. The cell includes a cell body and a tab protruding from the cell body. The battery protection plate connected with the tab. The heat dissipation assembly connected with the tab and the battery protection plate, and the heat dissipation assembly includes a phase-change material for absorbing heat.