Double-Pipe Slurry Supply for Uniform Electrode Coating Temperature
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing slurry supply systems for secondary battery electrode manufacturing face challenges in maintaining uniform slurry temperature, leading to thermal deformation of coating equipment and resulting in uneven electrode coating and defects.
Innovation Solution
A slurry supply device and method that utilizes a double pipe system connected to a temperature-controlled slurry tank, where hot or cold water is used to maintain the slurry temperature within a preset range, ensuring uniform temperature across the slurry in both the tank and the pipe.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If slurry is transferred through a pipe to the slurry tank, then the slurry can be stored and supplied, but the temperature of the slurry becomes non-uniform due to heat loss and temperature difference between pipe and tank
Solution Approach 1:
The patent implements a double pipe structure where the inner pipe carries slurry and the outer pipe carries temperature control water, with the inner pipe nested inside the outer pipe. This allows temperature control to be integrated directly into the slurry transfer system, heating or cooling the slurry during transit to maintain uniform temperature and prevent the temperature non-uniformity that would otherwise occur due to heat loss.
Solution Approach 2:
The patent changes the temperature parameter of the water flowing through the outer pipe to match and maintain the desired slurry temperature. By adjusting the water temperature and flow rate, the system compensates for heat loss during slurry transfer, ensuring the slurry arrives at the tank with uniform temperature throughout.
2Temperature
If temperature control water is supplied to the slurry tank, then the slurry temperature can be maintained, but the temperature of slurry in the pipe may still differ from tank slurry
Solution Approach 1:
The patent applies temperature control continuously along the entire slurry path by flowing temperature control water through the outer pipe during the entire slurry transfer process. This continuous temperature control ensures that the slurry maintains uniform temperature from the mixing point through the pipe and into the tank, eliminating temperature differences that would occur with intermittent or localized heating/cooling.
3Device complexity
If a simple single pipe is used for slurry transfer, then the device complexity is low, but temperature control effectiveness is insufficient
Solution Approach 1:
The patent uses a double pipe structure with the temperature control pipe nested around the slurry transport pipe. This nested configuration allows temperature control to be integrated into the existing transport infrastructure without requiring completely separate systems, achieving reliable temperature control while minimizing additional complexity compared to more elaborate heating or cooling systems.
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 solution effectively maintains uniform slurry temperature, preventing thermal deformation and ensuring consistent electrode coating quality, thereby reducing defects and improving overall manufacturing efficiency.
Implementation Method 1
a double pipe for supplying the slurry to the slurry tank while being connected to the slurry tank and for allowing hot or cold water to move to control the temperature of the slurry
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
A slurry supply device and a slurry supply method are disclosed. A slurry supply device according to an embodiment of the present disclosure includes a slurry tank for storing slurry; a temperature controller for supplying hot or cold water to the slurry tank to control the temperature of the slurry; and a double pipe for supplying the slurry to the slurry tank while being connected to the slurry tank and for allowing hot or cold water to move to control the temperature of the slurry.