Rotatable Battery Cells for Flexible Device Integration
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Solution Overview
Problem
Existing rechargeable batteries face challenges in flexibility and cost-effectiveness when integrated into devices with varying shapes and terminals, particularly in flexible display devices, where traditional designs are rigid and costly to manufacture.
Innovation Solution
A rechargeable battery design featuring a connection unit with rotatable battery cells and a conductive-non-conductive material alternation in connection portions, allowing for independent rotation and deformation, along with a protection circuit module and cap member for enhanced functionality and protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional rigid battery designs are used, then structural stability is maintained, but adaptability to different device shapes and terminals deteriorates
Solution Approach 1:
The battery is divided into multiple battery cells connected in parallel, with each cell being independently rotatable. This segmentation allows the battery to adapt to different device shapes while maintaining structural stability through the connection unit that links all cells together.
Solution Approach 2:
The connection unit incorporates rotatable joints between adjacent battery cells, enabling dynamic reconfiguration of the battery structure. Each battery cell can rotate independently relative to its neighbors, allowing the battery to conform to various device shapes while maintaining electrical connectivity and structural integrity.
2Ease of manufacture
If custom battery designs are developed for each device, then device-specific performance is optimized, but manufacturing cost increases
Solution Approach 1:
The battery design uses universal components - identical battery cells and a standardized connection unit with rotatable joints - that can be configured for different device shapes without requiring custom-designed battery packs. This universal approach reduces manufacturing costs while maintaining adaptability to various device specifications.
Solution Approach 2:
The battery achieves device-specific optimization by changing the configuration parameters (rotation angles, connection patterns) of the same universal components rather than redesigning the entire battery structure. This allows adaptation to different device shapes while using the same manufacturing process and components.
3Adaptability or versatility
If battery cells are fixed in position, then structural simplicity is maintained, but flexibility in configuration deteriorates
Solution Approach 1:
The battery structure is segmented into independent rotatable battery cells connected by a modular connection unit. This segmentation provides flexibility in configuration while keeping each individual component simple, avoiding the need for a completely complex integrated structure.
Solution Approach 2:
The connection unit features a nested structure where connection portions are integrated within the battery cell assembly. The rotatable joints are embedded in the connection unit, allowing flexible configuration without adding external complexity to the overall battery structure.
Data Source
AI summary
A rechargeable battery including a plurality of battery cells disposed in parallel; and a connection unit connected to ends of the plurality of battery cells such that each battery cell of the plurality of battery cells is rotatable with respect to an adjacent battery cell.