Battery Discharge Container With Hinged Plates to Prevent Floating
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Solution Overview
Problem
Lithium-ion secondary batteries often float during the discharge treatment process, risking contact with the atmosphere and potential fires due to incomplete discharge before recycling.
Innovation Solution
A pretreatment container with a housing and staggered, rotatably hinged upper plates that create an inclined insertion portion to prevent floating, ensuring the battery remains submerged and preventing atmospheric contact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple housing structure is used for battery immersion, then manufacturing cost is reduced, but batteries may float and contact the atmosphere causing fire hazards
Solution Approach 1:
The upper plate is designed to be rotatable rather than fixed, allowing it to dynamically adjust its position in response to battery buoyancy forces. When a battery floats, it pushes the upper plate upward, which triggers the locking mechanism to engage and prevent the plate from rotating further, thereby preventing atmospheric contact while maintaining structural simplicity
Solution Approach 2:
The upper plate has an asymmetric structure with a longer first portion and a shorter second portion, creating different functional zones. The first portion forms an insertion space for battery placement, while the second portion acts as a lever arm for the locking mechanism. This asymmetric design enables the single plate to perform multiple functions without requiring additional components
2Reliability
If a complex locking mechanism is added to prevent battery floating, then fire safety is improved, but device complexity increases
Solution Approach 1:
The locking mechanism is merged with the upper plate itself rather than being a separate system. The protrusion on the upper plate engages with the groove on the housing to form an integrated locking feature. This merging approach provides effective fire safety prevention while avoiding the complexity of independent locking components, actuators, or control systems
Solution Approach 2:
The upper plate's own movement in response to battery buoyancy serves to trigger the locking mechanism. As the battery floats and pushes the upper plate upward, the relative motion between the upper plate and housing automatically engages the locking features. The system uses the problematic floating motion itself to activate the safety mechanism, eliminating the need for external sensors or actuators
Data Source
AI summary
Provided is a pretreatment container for discharging of a secondary battery used in the process of processing discharging of a secondary battery, in which a first upper plate and a second upper plate are rotatably disposed in a staggered manner on an upper side of a housing including a receiving space receiving a waste battery, thereby preventing the waste battery from floating during the discharging process.