Battery Slurry Mixing Control for Uniform Powder Dispersion
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Solution Overview
Problem
Existing dispersion technologies face challenges in accurately quantifying powder supply during large-scale mixing of powder and liquid, leading to issues such as excessive viscosity and poor dispersion, affecting the uniformity and quality of the mixture.
Innovation Solution
A dispersion apparatus equipped with a stirring and mixing section, a powder supply status identifier, and a control unit that adjusts powder supply based on real-time feedback to optimize the powder amount, preventing preparation failures and ensuring uniform mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If powder and liquid are mixed in large quantities, then productivity is improved, but dispersion uniformity deteriorates leading to poor mixing quality
Solution Approach 1:
The patent employs a feedback mechanism where a sensor detects the powder supply status and sends signals to the control unit, which adjusts the powder supply amount accordingly. This closed-loop control system ensures that even when mixing large quantities of powder and liquid, the powder is supplied at the optimal rate to maintain uniform dispersion and prevent aggregation, thereby resolving the contradiction between high productivity and mixing quality.
2Productivity
If powder supply amount is increased, then productivity is improved, but powder supply status control precision deteriorates leading to excessive viscosity
Solution Approach 1:
The sensor continuously monitors the powder supply status and provides real-time feedback to the control unit. This enables precise detection and control of powder supply even at high supply rates, allowing the system to maintain optimal powder-to-liquid ratios and prevent excessive viscosity while achieving high productivity.
Solution Approach 2:
The patent replaces manual or simple mechanical powder supply control with an automated control system that uses sensors and control units to precisely regulate powder supply. This substitution enables accurate measurement and control of powder supply status even at high rates, resolving the contradiction between increased productivity and maintained control precision.
3Ease of operation
If powder supply is not controlled, then ease of operation is improved, but preparation reliability deteriorates due to excessive viscosity and poor dispersion
Solution Approach 1:
The control unit automatically adjusts the powder supply amount based on feedback from the sensor detecting powder supply status. This self-regulating system eliminates the need for manual intervention while ensuring reliable preparation outcomes, thereby maintaining ease of operation while significantly improving preparation reliability by preventing excessive viscosity and poor dispersion.
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 apparatus effectively controls powder supply to prevent preparation-related failures, maintaining mixture uniformity and quality, especially in high concentration and high viscosity scenarios, suitable for mass production.
Implementation Method 1
the inside of the stirring and mixing section may be at a negative pressure. According to this feature, the inside of the stirring and mixing section is in a negative pressure state, so that when the powder is supplied to the stirring and mixing section, the powder can be quickly moved to the stirring and mixing section side.
Data Source
AI summary
A dispersion apparatus for producing slurry for a battery includes: a stirring and mixing section that mixes powder and a liquid; an identifier that identifies a powder supply status of whether a predetermined amount of the powder is supplied from a powder supply section to the stirring and mixing section; and a control unit that controls supply of the powder according to the powder supply status.