Battery Attachment Tape Structure for Quiet, Stable Cell Bonding
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Solution Overview
Problem
Existing battery attachment tapes fail to prevent battery separation in portable electronic devices while minimizing noise occurrence at the attachment sites.
Innovation Solution
A battery attachment tape with an adhesive portion featuring non-adhesive regions at its corners and varying adhesive strengths, including a high-strength third adhesive region to complement the joining with the battery cell, reducing noise and enhancing stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the adhesive portion is made with uniform adhesive strength across the entire surface, then the battery is securely prevented from moving or separating, but noise occurs at the attachment sites due to rigid bonding
Solution Approach 1:
The adhesive portion has different adhesive properties in different regions: the corner regions have reduced or no adhesive strength to minimize noise, while the central region maintains full adhesive strength to ensure secure battery attachment. This local differentiation resolves the contradiction between secure attachment and noise reduction.
2Object-generated harmful factors
If non-adhesive regions are added to the adhesive portion to reduce noise, then noise occurrence is minimized, but the overall adhesive strength and reliability of battery attachment is reduced
Solution Approach 1:
The adhesive portion is segmented into distinct functional zones: non-adhesive corner regions for noise reduction and a central adhesive region for secure bonding. This segmentation allows each zone to perform its specific function optimally, maintaining overall attachment reliability while reducing noise.
Solution Approach 2:
Different regions of the adhesive portion are assigned different adhesive qualities - the corners have reduced adhesive strength to minimize noise, while the center maintains full adhesive strength to ensure reliable battery attachment, thus resolving the contradiction between noise reduction and attachment reliability.
3Strength
If the adhesive portion covers the entire battery surface, then maximum adhesive strength is achieved, but the complexity of the attachment tape structure increases
Solution Approach 1:
The adhesive portion is divided into functionally distinct segments (adhesive regions and non-adhesive regions) with different properties. This segmentation creates a more complex local structure but simplifies the overall design by eliminating the need for additional noise-reduction components, thus managing structural complexity while maintaining strength.
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 tape effectively prevents battery separation and minimizes noise by using non-adhesive regions and high-strength adhesive regions, ensuring a firm joint with the battery cell.
Implementation Method 1
an adhesive portion (110) positioned on a first surface of the battery attachment tape (100). The adhesive portion (110) includes an adhesive region (112) having an adhesive strength for attachment to at least a portion of one surface of the battery cell (200)
Data Source
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AI summary
A battery attachment tape comprises an adhesive portion positioned on a first surface of the battery attachment tape. The adhesive portion comprises an adhesive region having an adhesive strength for attachment to at least a portion of one surface of a battery cell and a non-adhesive region having no adhesive strength, and the non-adhesive region is formed at at least one corner of the adhesive portion.