Sealed Battery Cell Tray Structure for Moisture and Impact Protection
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Solution Overview
Problem
Existing battery cell packaging methods are not sealed, leading to corrosion from moisture and sea wind, and damage from impact during transportation and storage, especially since individual cells are not fully protected by the tray and paper boxes used.
Innovation Solution
A battery cell sealed container comprising a first tray with lower end receiving portions and a second tray that seals the first tray, featuring a flange and coupling portion for secure fitting, a dehumidifying agent receiving portion to prevent moisture, and supports to enhance structural rigidity and protect the cells from impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If individual battery cells are loaded on a tray and packaged in a double paper box, then the cells are protected from contact damage, but the cells are vulnerable to corrosion from moisture and sea wind due to the non-sealed structure
Solution Approach 1:
The packaging is divided into two separate trays: a first tray that holds the battery cells and provides contact protection, and a second tray that seals the first tray to prevent moisture and sea wind corrosion. This segmentation allows each tray to specialize in one protective function, resolving the contradiction between contact protection and corrosion prevention.
2Object-affected harmful factors
If a sealed and reusable dedicated packing case is used, then corrosion and damage are prevented, but the cost increases due to difficulty of recovery during export
Solution Approach 1:
The invention uses simple, inexpensive trays made from materials like paperboard or plastic that can be easily manufactured and disposed of after use. These trays provide effective sealing and protection without the high cost and complexity of reusable dedicated packing cases, making them economically viable for export operations.
3Object-affected harmful factors
If only upper and lower portions of battery cells are covered by the tray, then the tray structure remains simple, but side surfaces of the cells are exposed to corrosion
Solution Approach 1:
The packaging is divided into two separate trays: a first tray that holds the battery cells and provides contact protection, and a second tray that seals the first tray to prevent moisture and sea wind corrosion. This segmentation allows each tray to specialize in one protective function, resolving the contradiction between contact protection and corrosion prevention.
Solution Approach 2:
The second tray acts as an intermediary sealing layer that covers the first tray and its open top, creating a fully enclosed protective environment. This intermediary structure prevents moisture and sea wind from reaching the battery cells through the sides and top, while maintaining relative simplicity in each individual tray design.
Data Source
AI summary
Provided is a battery cell sealed container for preventing corrosion or damage in a process of moving battery cells. A battery cell sealed container of the present disclosure includes a first tray including a bottom surface and a side wall, wherein the bottom surface includes a plurality of lower end receiving portions in which lower ends of a plurality of battery cells are respectively accommodated and the side wall extends upward from the bottom surface, and a second tray configured to seal the first tray, the second tray including a top surface and a side wall, wherein the top surface includes a plurality of upper end receiving portions in which upper ends of the plurality of battery cells accommodated in the lower end receiving portions are accommodated and the side wall extends downward from the top surface.