Solid-State Electrolyte Using Lithium Phthalocyanine Complex
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Solution Overview
Problem
Conventional lithium-ion batteries face safety hazards due to flammable liquid-based electrolytes and high impedance issues with solid-state electrolytes, which impede efficient lithium ion conduction and cell integration.
Innovation Solution
A lithium-ion battery design incorporating a solid-state electrolyte comprising an alkoxyalkylammonium cation lithium phthalocyanine anion complex, along with a lithium-based anode and cathode, which facilitates fast lithium ion conduction while avoiding electronic conduction and enhancing stability and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional liquid-based electrolytes are used, then high ionic conductivity is achieved, but flammability hazards and safety issues occur
Solution Approach 1:
The patent changes the physical state parameter of the electrolyte from liquid to solid, and modifies the chemical composition by using specific solid-state materials (glass-ceramics, sulfides, oxides) with tailored ionic conductivity properties. This parameter transformation eliminates flammability while maintaining or improving safety characteristics.
2Reliability
If conventional solid-state electrolytes are used, then safety and stability are improved, but high impedance at interfaces impedes lithium ion conduction
Solution Approach 1:
The patent introduces intermediate buffer layers at the solid-state electrolyte/electrode interfaces to mediate the interaction between the SSE and electrode materials. These intermediate layers reduce interfacial impedance and facilitate efficient lithium ion transfer, resolving the conduction bottleneck without compromising the safety benefits of solid-state electrolytes.
Solution Approach 2:
The patent employs composite structures combining solid-state electrolyte materials with conductive additives or interface-modifying materials. This composite approach creates optimized interfaces that maintain the safety advantages of solid-state electrolytes while achieving low impedance for efficient lithium ion conduction.
3Object-generated harmful factors
If conventional solid-state electrolytes are used, then flammability is eliminated, but manufacturing complexity and cost increase due to specialized processing requirements
Solution Approach 1:
The patent adopts manufacturing processes for solid-state electrolytes that replicate or adapt proven techniques from liquid electrolyte battery production. By using analogous fabrication methods (such as modified coating or sintering processes), the patent reduces manufacturing complexity and enables scaling while maintaining the safety advantages of solid-state electrolytes.
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 achieves efficient lithium ion conduction, stability, and safety by using the alkoxyalkylammonium cation lithium phthalocyanine anion complex, enabling the battery to operate effectively over a broad temperature range without the flammability risks of liquid electrolytes.
Implementation Method 1
The solid-state electrolyte comprises an alkoxyalkylammonium cation lithium phthalocyanine anion complex... facilitates fast lithium ion conduction
Data Source
AI summary
A lithium ion battery cell. The lithium ion battery cell includes a lithium-based anode, a cathode, and a solid-state electrolyte positioned between the lithium-based anode and the cathode. The cathode comprises alkylammonium cation lithium phthalocyanine anion complex. The solid-state electrolyte comprises an alkoxyalkylammonium cation lithium phthalocyanine anion complex.