Curved Electric Device Battery with Round Corner
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Solution Overview
Problem
Conventional electric devices with curved structures cannot fully utilize their inner space due to the simple rectangular shape of pouch-shaped secondary batteries, leading to inefficient use of space and increased volume.
Innovation Solution
The electric device is designed with a curved structure that accommodates a secondary battery with a stacked type electrode assembly, featuring adjustable electrode groups and a round corner shape to match the device's curvature, allowing efficient use of internal space and minimizing volume expansion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a conventional rectangular pouch-shaped battery is used in a curved electric device, then the battery structure is simple and easy to manufacture, but the inner space of the electric device cannot be fully utilized and dead spaces are formed
Solution Approach 1:
The battery case is designed with a round corner configuration that corresponds to the curved structure of the electric device. Specifically, the battery case includes a first case body and a second case body with a round corner formed between them, allowing the battery to fit into the curved recess of the device housing and eliminate dead spaces while maintaining manufacturing feasibility through stamping or forming processes.
2Volume of moving object
If the battery case is designed with a round corner configuration, then the space utilization is improved and dead spaces are eliminated, but the manufacturing complexity increases
Solution Approach 1:
The battery case is divided into a first case body and a second case body that are separately formed and then assembled. The round corner is formed at the interface between these two case bodies, allowing each part to be manufactured using standard forming processes while achieving the curved configuration through assembly. This segmentation reduces the manufacturing complexity compared to forming a single complex curved piece.
3Ease of manufacture
If a conventional rectangular battery is mounted in a curved device, then the manufacturing process is simple, but additional fixing members are required and safety is reduced
Solution Approach 1:
The round corner configuration of the battery case corresponds to the curved recess in the device housing, creating a form-fit mounting solution. The curved surfaces mate together to provide mechanical interlocking and stable positioning without requiring additional adhesives, clips, or other fixing members, thereby improving both mounting simplicity and reliability.
Data Source
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AI summary
Disclosed herein is an electric device having a curved structure formed at at least one position of an outside thereof, wherein at least one secondary battery having an external appearance corresponding to a shape of the curved structure is mounted at the position of the electric device at which the curved structure is formed and wherein the secondary battery is a battery cell having an electrode assembly including a cathode, an anode, and a separator disposed between the cathode and the anode mounted in a battery case or a battery pack having the battery cell mounted in a pack case.