Lithium Silicate Composite with Quenched Monocrystalline Orientation
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Solution Overview
Problem
Existing composite materials with solid-state structures lack improved material properties for precise measurability and high crystallinity, particularly in lithium-ion batteries, where particle morphology significantly influences electrochemical properties.
Innovation Solution
A composite with a solid-state structure featuring silicate, lithium ions, and a paramagnetic or diamagnetic element, arranged in areas with identical crystal orientation at a distance of at least one millimeter, allowing for the formation of a monocrystalline section and enhanced material properties through the optical floating-zone technique and quenching process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If conventional composite materials are used, then production is simpler, but measurement precision and crystallinity are insufficient
Solution Approach 1:
The patent applies local quality by creating distinct areas within the composite with different characteristics. Specifically, it defines first and second areas with different lithium ion concentrations, where the first area has a higher lithium ion concentration than the second area. This local differentiation enables precise measurement regions while maintaining overall structural functionality, resolving the contradiction between measurement precision and structural simplicity.
Solution Approach 2:
The patent segments the composite into distinct functional areas: a first area with high lithium ion concentration optimized for measurement precision, a second area with lower lithium ion concentration for structural stability, and optionally a third area serving as a transition zone. This segmentation allows each region to be optimized for its specific function, achieving high measurement precision without requiring the entire structure to be overly complex.
2Reliability
If high crystallinity is achieved through monocrystalline sections, then material properties improve, but production difficulty increases
Solution Approach 1:
The patent employs parameter changes by systematically varying the lithium ion concentration across different areas of the composite. The first area maintains a lithium ion concentration within 0.95-1.05 times the stoichiometric value for optimal electrochemical performance and measurement accuracy, while the second area has a lower concentration for structural stability. This controlled parameter variation enables high reliability without requiring excessively complex manufacturing processes.
Solution Approach 2:
The patent applies preliminary action by pre-defining the lithium ion concentration distribution during the composite formation process. The different areas are created with their specific lithium ion concentrations during manufacturing, rather than requiring post-processing adjustments. This preliminary establishment of concentration gradients simplifies the overall production process while achieving the desired high crystallinity and electrochemical performance.
3Productivity
If particle morphology is optimized for electrochemical properties, then battery performance improves, but manufacturing precision requirements increase
Solution Approach 1:
The patent applies local quality by creating areas with different lithium ion concentrations that correspond to different functional requirements. The first area with higher lithium ion concentration (0.95-1.05 times stoichiometric) is optimized for electrochemical cycling performance, while the second area with lower concentration provides structural stability. This local optimization enables high productivity without requiring uniform precision control throughout the entire particle.
Solution Approach 2:
The patent applies partial action by optimizing only the critical first area for electrochemical performance with precise lithium ion concentration control, while allowing the second area to have more relaxed concentration requirements. This partial optimization approach achieves high electrochemical productivity without requiring manufacturing precision across the entire composite structure.
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 composite achieves improved material properties with high crystallinity and purity, enabling accurate lattice constant determination and enhanced electrochemical performance, particularly suitable for single-crystal measurements and lithium-ion battery applications.
Implementation Method 1
A method has a quenching step in which a solid-state structure of a composite is produced
Implementation Method 2
allowing for the formation of a monocrystalline section and enhanced material properties through the optical floating-zone technique
Data Source
AI summary
A composite has a solid-state structure, silicate, lithium ions, and at least one paramagnetic or diamagnetic element, which is different from lithium silicon, and oxygen. The solid-state structure has two areas in which the solid-state structure forms an identical crystal orientation. The areas are arranged at a distance of at least one millimeter from each other. A method has a quenching step in which a solid-state structure of a composite is produced, which differs from an ambient temperature solid-state structure. The composite produced by the method has silicate, lithium ions, and an element that is different from lithium, silicon, and oxygen. The method produces at least one gram of the phase pure composite in the quenching step.