Coin-Type Secondary Battery Assembly With Solid Electrolyte Isolation
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Solution Overview
Problem
Lithium-ion batteries face challenges due to high costs, environmental concerns, and social issues related to lithium scarcity, explosion risks, and disposal problems, necessitating a more sustainable and cost-effective alternative for large-scale energy storage systems.
Innovation Solution
A coin-type secondary battery design featuring an anode and cathode with solid electrolytes, an ion-containing solution of sodium, lithium, and magnesium, and a seawater-based cathode part, which allows for easy charging and discharging while preventing short-circuits and facilitating assembly and testing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If lithium-ion batteries are used for large-scale energy storage, then high energy storage capacity is achieved, but high costs and environmental problems occur due to lithium scarcity and disposal issues
Solution Approach 1:
The patent changes the chemical composition parameters of the battery by replacing lithium-based electrolytes with sodium-based electrolytes and using sodium metal as the anode material. This substitution maintains the electrochemical energy storage function while using abundant, inexpensive materials, directly addressing the high cost issue of lithium-ion batteries.
Solution Approach 2:
The patent employs sodium metal as the anode material, which is significantly cheaper than lithium. Although sodium metal requires careful handling, its low cost and abundance make it an economically viable alternative for large-scale energy storage systems where long battery life can be achieved through proper system design and operation.
2Quantity of substance
If lithium-ion batteries are deployed at large scale, then energy storage demand is met, but social objections arise due to misidentification with nuclear facilities and environmental concerns
Solution Approach 1:
The patent fundamentally changes the material composition parameters of the battery system by eliminating lithium and using sodium-based chemistry. This creates a visually and chemically distinct battery type that can be clearly differentiated from nuclear facilities, reducing public misunderstanding and social opposition.
Solution Approach 2:
The patent converts the potential harm of using common materials like sodium (which can react with water) into a benefit by designing a sealed system that prevents contact between sodium and moisture. This approach not only solves the safety issue but also allows the use of abundant, inexpensive materials that are environmentally friendly and free from the stigma associated with nuclear materials.
3Reliability
If solid electrolytes are used in the anode part, then safety and stability are improved, but manufacturing complexity increases due to precise bonding requirements
Solution Approach 1:
The patent divides the battery into distinct functional modules: a sealed anode compartment containing the sodium metal and solid electrolyte, and a cathode compartment containing the energy storage material. This segmentation allows the complex solid electrolyte bonding to be confined to a small, controlled area while maintaining overall system simplicity.
Solution Approach 2:
The solid electrolyte is pre-bonded to the anode current collector in a controlled manufacturing process before final battery assembly. This preliminary action ensures precise bonding under optimal conditions and simplifies the final assembly process, reducing the complexity burden on the manufacturing line.
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 solution enables efficient and cost-effective charging and discharging of the coin-type secondary battery, reduces the risk of explosion, and minimizes environmental impact, making it suitable for large-scale energy storage systems with reduced social objections.
Implementation Method 1
one or more solid electrolytes are bonded to an anode upper case... the one or more solid electrolytes are disposed at the one or more openings in the anode upper case
Implementation Method 2
the cathode part includes an ion-containing solution containing sodium, lithium, magnesium, and a combination thereof... the ion-containing solution flows into the cathode part from the outside of the second case
Implementation Method 3
a secondary battery refers to a battery capable of being charged and discharged through a conversion between chemical energy and electric energy using a material capable of electrochemically reacting with a cathode and an anode
Data Source
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AI summary
The present invention relates to a coin-type secondary battery and a manufacturing method therefor and, specifically, can provide: a coin-type secondary battery, wherein a solid electrolyte is applied to an anode part, an ion-containing solution comprising sodium, lithium, magnesium and a combination thereof is applied to a cathode part, and the ion-containing solution flows in from the outside of the cathode part; and a manufacturing method therefor.