Laminated Battery Pack Conductive Layer ESD Protection
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Solution Overview
Problem
Existing battery packs are prone to functional failures due to electrostatic discharge (ESD), which can damage semiconductor elements and cause malfunctions in electronic devices, especially those with low ESD tolerance, and current solutions like using conductive tape are complex and reduce production efficiency.
Innovation Solution
A battery pack with a laminated outer package containing a conductive layer, where the positive or negative electrode terminal is electrically connected to the conductive layer, simplifying the structure and assembly process to enhance ESD tolerance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conductive tape is introduced and connected to the positive electrode lead, then the ESD tolerance is improved, but the assembly process becomes complex and production efficiency is reduced
Solution Approach 1:
The conductive layer is pre-formed on the outer package surface before battery assembly. This preliminary preparation eliminates the need for subsequent conductive tape attachment steps, simplifying the assembly process while maintaining ESD protection functionality.
Solution Approach 2:
The ESD protection function is merged into the outer package structure itself by forming a conductive layer directly on it. This integration eliminates the need for separate conductive tape components and their associated assembly steps, thereby improving production efficiency while maintaining reliability.
2Reliability
If a conductive tape is used to connect the outer package to the positive electrode terminal, then the ESD protection is achieved, but the assembly steps are increased and reliability is difficult to guarantee
Solution Approach 1:
The conductive layer is extracted as an integral part of the outer package structure rather than being a separate component. This extraction of the conductive function into the base structure eliminates the need for additional conductive tape components and simplifies the overall assembly structure.
Solution Approach 2:
The ESD protection function is merged with the outer package by forming a conductive layer directly on it. This merging eliminates the need for separate conductive tape components and their complex assembly steps, thereby reducing device complexity while maintaining reliability.
3Reliability
If the outer package has a laminated structure with a conductive layer, then the ESD tolerance is enhanced with a simpler structure, but additional manufacturing steps are required for the outer package
Solution Approach 1:
The outer package is manufactured with a laminated structure that includes a conductive layer, changing the material composition and electrical properties of the package. This parameter change enables inherent ESD protection while the lamination process is a standard manufacturing technique that can be integrated into existing production lines.
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 solution effectively eliminates the influence of electrostatic discharge by ensuring a conductive path for static electricity, reducing the risk of damage to electronic circuits and improving production efficiency with a simpler assembly process.
Implementation Method 1
when electrostatic discharge (ESD) occurs, static electricity may flow in the circuit board inside the battery pack
Implementation Method 2
a conductive layer disposed on the surface of the outer package may form a static electricity path
Data Source
AI summary
The present invention provides a battery pack and its fabricating method, a battery and an electronic device. The battery pack provided by the present invention comprises: an outer package, which is in a laminated form and has a conductive layer therein; and a battery cell, which has a positive electrode terminal and a negative electrode terminal and is housed in the outer package, wherein, the positive electrode terminal or the negative electrode terminal of the battery cell is electrically connected to said conductive layer at the part led out from the outer package. With the battery pack and its fabricating method provided by the present invention, the influence of electrostatic discharge can be eliminated with a more simple structure.