This technology explores the synthesis and characterization of mixed-conductivity glasses by incorporating Vanadium oxide into Lithium salt-Phosphate compositions via melt quenching. The glasses exhibit tunable ionic and electronic conductivity, critical for enhancing electrochemical energy storage device performance. Room temperature dc conductivity varies from ~10^-10 S/cm to ~10^-6 S/cm with varying Vanadium oxide content. These glasses, stabilized by Fluoride and Aluminum ions, offer potential as stable electrode materials in all-solid-state batteries, addressing challenges posed by crystalline counterparts.
Figure (1) Illustrates a side view of an interface formed between two 20 glass pieces of different compositions belonging to a glass product in accordance with the present disclosure.
Current challenges in developing materials for electrochemical energy storage devices include:
- Synthesis Complexity: Direct synthesis of fluoride phosphate-based crystalline materials is hindered by thermodynamic complexities and polymorphism, impacting electrochemical properties.
- Structural Constraints: Crystalline phases are rigid, leading to mechanical strain during battery cycles, potentially causing performance degradation.
- Volumetric Limitations: Spatial voids in crystalline materials restrict their energy density despite theoretical capacity.
- Stability Issues: Many glass compositions, like those based on lithium oxide and phosphate, are hygroscopic or unstable in ambient conditions, requiring controlled environments for handling.
- Mixed Electrical Conduction: Introduces fluoride phosphate glasses with mixed ionic and electronic conductivity, crucial for efficient electrode materials.
- Versatile Composition: Fabricates glasses over a wide range of compositions for fine-tuning electrical properties, surpassing crystalline material limitations.
- Stability and Handling: Incorporates Fluoride and Aluminum ions for stability and non-hygroscopic properties, facilitating reliable ambient handling.
- Easy Fabrication: Amorphous glasses allow low-cost fabrication without structural rigidity or volumetric constraints of crystalline materials.
- Enhanced Performance: Addresses synthesis challenges and structural limitations to potentially improve battery efficiency and reliability in all-solid-state devices.
The product incorporates Vanadium oxide as a key component to achieve mixed ionic and electronic conductivity. It utilizes Lithium fluoride as an ion conductor and Aluminum metaphosphate as a glass former to stabilize the structure. The glasses are fabricated using a melt quench technique, involving controlled heating and rapid cooling to achieve an amorphous structure conducive to mixed conductivity. Dimensions vary depending on application, typically compact for prototype testing in battery cells or electronic devices. The unique selling point lies in their ability to enhance energy storage efficiency through mixed conductivity, addressing limitations of traditional materials in battery performance and longevity.
Available for licensing
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This technology supports clean energy adoption by enhancing battery efficiency, reduces environmental impact through improved energy storage for EVs and renewables, and boosts consumer electronics with longer-lasting, more reliable devices.
Industries: Battery technology, Energy Storage, Electronics, Renewable Energy, Automotive, Electric Vehicle Industries
The technology can be applied in:
- Energy storage systems, including grid and stationary storage.
- All-solid-state batteries for electric vehicles and consumer electronics.
- Portable electronics like wearable devices and power banks.
Geography of IP
Type of IP
201921022933
523001