Battery Holder Grooves for Segmented Disassembly
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Solution Overview
Problem
Existing assembled batteries are difficult to disassemble for recycling due to the strong adhesive bond between the battery and the holder, making it hard to separate the battery from the holder.
Innovation Solution
The battery assembly incorporates grooves on the holder that communicate adjacent holding holes, allowing cracks to form when an impact is applied, which facilitates the separation of the battery by exposing the adhesive surface, enabling easy removal of the battery from the holder.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If adhesive is used to join the battery outer peripheral surface to the holder inner peripheral surface, then the battery is firmly fixed to the holder, but the battery becomes hard to be pulled out from the holding hole for recycling
Solution Approach 1:
The holder is divided into multiple separate pieces by forming grooves that extend from the outer peripheral surface toward the inner peripheral surface. These grooves segment the holder into multiple sections, allowing the holder to be easily separated into several parts when disassembly is needed, while maintaining structural integrity during normal use.
Solution Approach 2:
The grooves are pre-formed in the holder before the battery is installed. These grooves are positioned and sized in advance to facilitate future disassembly. When disassembly is required, applying force to the holder causes it to break along these pre-formed grooves, enabling easy separation of the battery from the holder without damaging the battery itself.
2Ease of manufacture
If the holder structure is made simple without grooves, then manufacturing is easier, but the battery cannot be easily separated from the holder for recycling
Solution Approach 1:
The holder incorporates grooves that segment the structure into multiple sections. These grooves are formed using conventional manufacturing methods and do not significantly complicate the manufacturing process. The segmented structure enables the holder to be easily separated into multiple pieces when recycling is needed, providing adaptability for battery removal while maintaining manufacturing simplicity.
Solution Approach 2:
The grooves are designed with specific depth and width parameters that balance manufacturing ease with disassembly functionality. The grooves extend from the outer peripheral surface toward the inner peripheral surface but do not completely penetrate the holder, optimizing both manufacturing simplicity and recyclability. This parameter optimization allows the holder to be easily manufactured while enabling effective battery removal when required.
Data Source
AI summary
An battery assembly includes: a holder having a front surface and a back surface and having a plurality of holding holes, which are cylindrical holes penetrating through between the front surface and the back surfaces; and a cylindrical battery extending in an axis direction and having an outside diameter smaller than an inside diameter of the holding hole, wherein: the holder is configured such that at least part of the battery is accommodated in the holding hole; the battery assembly includes an adhesive provided between an outer peripheral surface of the part of the battery and an inner peripheral surface of the holder so as to fix the battery to the holder; and the holder has grooves each of which is opened on the front surface or the back surface of the holder, each of the grooves making adjacent holding holes among the plurality of holding holes with each other.