Plasma Synthesis of Solid-State Electrolytes for Consistent Battery Production
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Solution Overview
Problem
Current lithium solid-state battery technologies face challenges in production efficiency and consistency, thermal characteristics, and recharge performance, necessitating improvements in solid-state battery technologies.
Innovation Solution
A plasma system is employed to synthesize solid-state electrolyte materials by generating a plasma within a chamber and controllably injecting a mixture of carrier gas and solid-state electrolyte precursor or reactant powders, with precise control over pressure and flow rate, to produce high-purity solid-state electrolyte materials such as lithium rich anti-perovskite, lithium-boron-sulfur, and sulfide electrolyte materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional lithium battery production methods are used, then production processes are established, but production efficiency and consistency are insufficient
Solution Approach 1:
The patent employs plasma processing parameters (power, gas flow rate, pressure, treatment time) to precisely control the surface modification of lithium battery electrodes. By adjusting these parameters, the invention achieves consistent surface treatment that improves production efficiency while ensuring batch-to-batch consistency in electrolyte penetration and electrode performance.
Solution Approach 2:
The invention replaces conventional mechanical mixing and chemical treatment methods with plasma processing. This substitution provides more uniform and controllable surface modification of electrodes, leading to improved production efficiency and consistency in electrolyte absorption without the variability associated with mechanical processes.
2Temperature
If solid-state electrolyte materials are produced with improved thermal characteristics, then battery safety is enhanced, but production complexity increases
Solution Approach 1:
The patent utilizes plasma phase transitions (from gas to ionized plasma state) to achieve surface modification at controlled temperatures. This allows improvement of thermal characteristics of solid-state electrolytes through plasma treatment without requiring complex high-temperature furnaces or multiple processing steps, thereby reducing production complexity while enhancing thermal performance.
3Reliability
If plasma processing is applied to improve recharge performance, then battery performance is enhanced, but energy consumption increases
Solution Approach 1:
The patent employs periodic plasma pulsing techniques where plasma is applied in controlled intervals rather than continuously. This periodic action maintains effective surface modification for improved recharge performance while reducing overall energy consumption by allowing brief cooling periods and optimizing plasma on-time versus off-time ratios.
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 plasma system enhances the production of solid-state electrolyte materials, improving their thermal characteristics and recharge performance, leading to more efficient and consistent battery technologies.
Implementation Method 1
an electrode assembly including a first electrode and a second electrode, the first electrode and the second electrode may be proximally positioned to form an arc therebetween to generate a plasma
Data Source
AI summary
Aspects of the present disclosure involve a plasma system for practicing various methods of synthesizing solid-state electrolyte materials and precursors for solid-state electrolyte materials.