Battery Terminal Cap Assembly for Selective Access and Isolation
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Solution Overview
Problem
Battery cells with positive and negative terminals on the same side are prone to form electrical paths when stacked, leading to unnecessary discharge and potential damage, which can reduce battery life and pose safety risks.
Innovation Solution
A cap assembly with a protective element, such as a flip cover, is used to isolate the positive and negative terminals, featuring a magnetic securing mechanism and selective access openings to prevent electrical coupling, allowing batch processing and cleaning without short circuits.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If battery cells are stored or processed together with terminals on the same side, then processing efficiency is improved, but electrical coupling between terminals occurs causing discharge and potential damage
Solution Approach 1:
The cap is divided into multiple independent openings, each covering a specific terminal. This segmentation allows each terminal to be independently protected while maintaining the ability to access specific terminals when needed, thus enabling batch processing without electrical coupling between adjacent terminals.
Solution Approach 2:
The cap assembly acts as an intermediary protective element between the terminals and the environment. It provides physical isolation and electrical insulation, preventing direct contact between terminals of adjacent battery cells while still allowing controlled access through protective openings.
2Ease of operation
If terminals are accessible for measurement and processing, then operational efficiency is improved, but accidental discharge and short circuits occur
Solution Approach 1:
The cap incorporates movable protective elements such as flip covers or sliding mechanisms that can dynamically open and close. This allows terminals to be accessible when needed for measurement and processing, while automatically protecting them when not in use, thus preventing accidental discharge while maintaining operational efficiency.
Solution Approach 2:
The cap is pre-installed on the battery cell before processing, providing immediate protection. The protective openings are designed to allow measurement tools to access terminals without removing the cap, so protection is established in advance while maintaining necessary accessibility.
3Reliability
If a cap covers the terminal area, then electrical isolation is improved, but access for measurement and cleaning becomes difficult
Solution Approach 1:
The cap is designed with multiple separate openings positioned over specific terminals, allowing measurement tools to access individual terminals through the cap without removing it. This segmentation maintains electrical isolation while providing targeted access points for measurement and cleaning operations.
Solution Approach 2:
The cap incorporates flexible protective elements such as thin film covers or elastic materials that can be temporarily displaced or opened to allow tool access, then return to their protective position. This maintains electrical isolation while facilitating measurement and cleaning operations.
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 cap assembly effectively prevents electrical coupling between terminals, reducing defectivity and manufacturing costs while enabling safe batch processing and cleaning of battery cells.
Implementation Method 1
The securing feature comprises a magnet configured to create a magnetic force to removably secure the cap to the battery cell
Data Source
AI summary
A system includes an apparatus including a cap configured to fit over an end of a battery cell having a terminal. The cap forms an opening arranged to be over the terminal. The apparatus further includes a protective element for the opening that provides selective access to the terminal and a securing feature for removably securing the cap to the battery cell.