Electric Storage Device with Cutout Case and Elastic Terminals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional electric storage devices with rectangular shapes in plan view lack impact resistance and are not suitable for non-rectangular installation spaces in electronic devices.
Innovation Solution
An electric storage device with a case having a cutout part, featuring a non-rectangular shape, an electrode body with elastic connection members, and an electrolyte that impregnates the electrode body, providing excellent impact resistance through a configuration that includes a first and second electrode terminal on the side surfaces and a bonding layer for physical integration with the case.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the electric storage device is designed with a non-rectangular shape to fit installation spaces, then the adaptability to installation spaces is improved, but the impact resistance deteriorates
Solution Approach 1:
The case is designed with an asymmetric non-rectangular shape including a cutout part, allowing the device to fit into irregular installation spaces while maintaining structural integrity through strategic placement of reinforcement elements at critical stress points
Solution Approach 2:
The case is divided into multiple recessions formed by ridges, creating segmented structural zones that can independently absorb and distribute impact forces, preventing stress concentration that would otherwise compromise impact resistance in non-rectangular configurations
2Strength
If the connection members are made elastic to improve impact resistance, then the strength is improved, but the device complexity increases
Solution Approach 1:
Elastic connection members are used to connect electrode terminals to the case, providing flexibility and shock absorption capability. These elastic elements act as flexible connectors that can deform under impact forces, protecting the rigid electrode terminals and internal components from damage
Solution Approach 2:
The connection members serve dual functions: they provide electrical connection between terminals and electrodes, and simultaneously act as elastic shock-absorbing elements. This merging of electrical and mechanical functions reduces the need for separate protective components, thereby limiting the increase in device complexity
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 device achieves non-rectangular shape without compromising impact resistance, allowing for efficient use in non-traditional installation spaces while maintaining effective electrical performance.
Implementation Method 1
a first connection member which has elasticity in a direction extending from the first electrode terminal to the first electrode
Data Source
AI summary
An electric storage device includes a case having a substantially rectangular shape including a cutout part. An electrode body is disposed in the case and includes a first electrode, a second electrode, and a separator disposed between the first and second electrodes. An electrolyte is located in the case and at least partially impregnating the electrode body. A first electrode terminal is located on a first part of a side surface of the case and is electrically connected to the first electrode by a first connection member which has elasticity in a direction extending from the first electrode terminal to the first electrode. A second electrode terminal is located on a second part of the side surface of the case and is electrically connected to the second electrode by a second elastic connection member which has elasticity in a direction extending from the second electrode terminal to the second electrode.