According to foreign media reports, the University of Maryland researchers designed a flexible lithium-ion conductive ceramic textile (flexible lithium-ion conducting ceramic textile), the material is a fast lithium ion conductor, electrochemical stability, processing methods can be extended , Can be integrated into solid lithium metal batteries.
The material is based on garnet-type conductors and has many desirable chemical and structural properties including: lithium-ion conducting cubic structures, low-density, multi- scale porosity, high surface area / volume ratio, and good flexibility, the team published a report in Materials Today claiming that using a solid polymer electrolyte with ceramic fibers For high lithium ion conductivity, ensuring stable long-term lithium-ion stability - up to 500 hours of charge-free trouble-free operation.
Lithium-ion conductive ceramic fabric is a flexible material that retains the physical properties of the original template.The unique structure of the ceramic fabric is achieved with continuous fibers and continuous fibers and yarns, solid conductors The high surface area / volume ratio, multi-level pore distribution to achieve long-distance lithium ion transmission pathway.
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The ceramic textile also provides an electrolyte frame when designing 3D electrodes to provide ultra-high cathodic load (10.8 g / cm2 sulfur) for high-performance lithium metal cells with battery capacity output of up to 1000 mAh / g.
The team used commercial fibers as templates in their research to create Li-conducting garnet fiber mat textiles that filled solid polymer electrolytes into the interstitial spaces between the fibers.
The process expands to enhance the electrical conductivity of the hybrid ceramic / polymer lithium ion electrolyte while enhancing the strength of the garnet ceramic electrolyte, and the ceramic fabric is flexible and easy to cut.
The team will also continue to develop the technology and plan to make the ceramic fabric thinner, thereby reducing the ion transport resistance between electrodes, the technology will be widely used in commercial electronic devices.