Battery Holder Pressure Element Prevents Bulging
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Solution Overview
Problem
Rechargeable batteries with parallel electrode plates and nonwoven materials experience bulging due to internal pressure, leading to reduced contact and shortened lifespan, especially when used to store renewable energy sources like solar electricity.
Innovation Solution
A system with a pressure element between supports that transfers the weight of upper stored energy sources to the side walls of lower sources, preventing bulging by maintaining contact between electrode plates and nonwoven materials, and featuring U-shaped supports with a profile pressure element and interlocking connections for stability and easy access.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of stationary object
If battery casings are designed to be compact and lightweight, then portability and installation ease are improved, but the casings cannot withstand internal pressure and bulge during charging
Solution Approach 1:
A retaining element is introduced as an intermediary component between the electrode plates and the casing. This retaining element has appropriate tensile strength to counteract internal pressure during charging, preventing bulging while allowing the casing itself to remain lightweight and compact. The retaining element acts as a mediator that bears the mechanical stress rather than the casing structure.
Solution Approach 2:
Instead of making the entire casing thick and heavy to resist pressure, the retaining element provides localized reinforcement only where needed - within the battery cell compartment. This allows the casing to remain lightweight overall while having sufficient strength at critical locations where pressure resistance is required.
2Reliability
If electrode plates and nonwoven materials are compressed to ensure contact, then battery performance is improved, but the compressed arrangement cannot be maintained when casings bulge
Solution Approach 1:
The retaining element is installed beforehand to prevent bulging before it occurs during charging cycles. By providing continuous counter-pressure against internal pressure buildup, the retaining element prevents the casing from bulging, thereby maintaining the compressed arrangement of electrode plates and nonwoven materials throughout the battery's operational life.
Solution Approach 2:
The retaining element serves as a mediator that maintains the compressed state of the electrode plates and nonwoven materials. It transmits and distributes the compression force evenly, ensuring stable contact between components while preventing the uneven pressure distribution that would occur if the casing bulged.
3Duration of action of stationary object
If retaining elements are added to prevent bulging, then battery lifetime is extended, but the device complexity increases
Solution Approach 1:
The retaining element is designed as a simple, inexpensive component that can be easily manufactured and installed. Rather than designing a complex reusable casing structure, a simple retaining element provides the necessary function at low cost and with minimal structural complexity, making it economically viable for mass production.
Solution Approach 2:
The pressure-resistance function is extracted from the main casing structure and implemented as a separate, dedicated retaining element. This separation allows the casing to remain simple and lightweight while the retaining element handles the complex function of pressure resistance, reducing overall structural 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 system effectively prevents bulging, extends the service life of batteries by maintaining contact between electrode plates and nonwoven materials, and allows for easy replacement and configuration, while being simple and adaptable with few components.
Implementation Method 1
at least one pressure element is arranged between the supports which rests on the side walls of the casings of the stored energy sources and transfers at least a weight force of the stored energy sources arranged at the top of the holder to stored energy sources which are arranged below the stored energy sources arranged at the top
Data Source
AI summary
The disclosure relates to a system comprising a holder and stored energy sources which can be placed in the holder, in particular rechargeable batteries, each having a casing which has side walls and in which are placed electrode plates oriented parallel to the side walls and nonwoven materials containing a bound electrolyte, the electrode plates being placed between adjacent nonwoven materials. The holder consists of at least two supports placed one above the other to hold stored energy sources in such a manner that the side walls of the casing which are oriented parallel to the electrode plates are oriented substantially horizontally. At least one pressure element is situated between the supports and rests on the side walls of the casing of the stored energy sources and transmits at least the weight force of the stored energy sources situated at the top of the holder to stored energy sources situated underneath the stored energy sources situated at the top.