Sealed Isatin Primary Battery for Long-Term Storage Stability
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Solution Overview
Problem
Conventional air batteries are not suitable for long-term storage due to electrolytic solution volatilization from the air intake port, necessitating a sealed system with a low environmental load.
Innovation Solution
A primary battery design featuring a positive electrode with isatin, a negative electrode with magnesium or aluminum, and an aqueous electrolyte, eliminating the need for an air intake port and allowing for long-term storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an air battery uses oxygen in the air as a positive electrode active material, then the battery has a low environmental load, but the electrolytic solution volatilizes from the air intake port and is not suitable for long-term storage
Solution Approach 1:
The invention extracts the oxygen supply function from the external air environment and relocates it to an internal sealed structure. The oxygen-impregnated porous material is placed inside the battery, providing oxygen directly to the positive electrode without requiring an air intake port, thereby eliminating electrolyte volatilization while maintaining the low environmental load of using oxygen as the active material
Solution Approach 2:
The invention introduces an intermediary substance - oxygen-impregnated porous material - that serves as a bridge between the oxygen requirement of the positive electrode and the sealed system constraint. This porous material absorbs and stores oxygen, then releases it gradually to the electrode, enabling long-term storage stability while maintaining the environmentally friendly oxygen-based chemistry
2Power
If conventional batteries use rare metals such as lithium, nickel, manganese, or cobalt, then they have high performance, but they have a resource depletion problem
Solution Approach 1:
The invention adopts a disposable primary battery design using abundant, non-rare materials (zinc negative electrode, oxygen-impregnated porous material positive electrode, and aqueous electrolyte) that can be easily replaced. This approach trades the longevity of rechargeable rare metal batteries for the resource sustainability and cost-effectiveness of disposable batteries using common materials
Solution Approach 2:
The invention fundamentally changes the material composition parameters of the battery, replacing rare metals with abundant elements. The positive electrode uses oxygen-impregnated porous material instead of lithium or other rare metals, and the negative electrode uses zinc instead of nickel or cobalt, thereby achieving high performance without depleting rare metal resources
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 battery achieves a low environmental impact and extended storage capability without electrolyte volatilization, using inexpensive materials and providing a safe, efficient energy source for small devices and sensors.
Implementation Method 1
an aqueous electrolyte disposed between the positive and negative electrodes
Implementation Method 2
a primary battery including a positive electrode, a negative electrode, and an aqueous electrolyte
Data Source
AI summary
A primary battery includes a positive electrode containing isatin, a negative electrode containing magnesium or aluminum, and an electrolyte disposed between the positive electrode and the negative electrode.