Axial Energy Storage Cell Layout for Low Internal Resistance
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Radial electrochemical energy storage devices face challenges with high internal resistance, poor discharge capacity, and high heat generation, which are not effectively addressed by conventional aluminum cover plates and housings.
Innovation Solution
The design incorporates an upper connecting bar and a lower connecting piece for welding, along with a rubber piece providing insulating and sealing effects, to create an axial electrochemical energy storage device with low internal resistance for high current charging and discharging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If aluminum cover plates and housings are used for axial capacitors, then structural strength is improved, but manufacturing complexity and cost increase
Solution Approach 1:
The patent replaces expensive aluminum cover plates with a cheaper rubber sealing piece that performs the sealing function. The rubber piece is simpler to manufacture and install, reducing both manufacturing complexity and cost while maintaining the necessary sealing function of the housing structure.
2Strength
If aluminum cover plates and housings are used for axial capacitors, then structural strength is improved, but the risk of conduction between cover plates and housing increases
Solution Approach 1:
The patent introduces an insulation pad as an intermediary element between the aluminum housing and the rubber sealing piece. This insulation pad prevents direct electrical contact between conductive parts, eliminating the conduction risk while maintaining the structural integrity and sealing function of the housing assembly.
3Volume of moving object
If radial capacitor configuration is used, then compact structure is achieved, but internal resistance increases
Solution Approach 1:
The patent inverts the conventional radial capacitor configuration by adopting an axial configuration where the positive and negative electrodes are positioned at opposite ends of the housing. This inversion of the spatial arrangement allows for lower internal resistance and better current discharge performance while maintaining a compact overall structure through optimized internal component layout.
4Volume of moving object
If radial capacitor configuration is used, then compact structure is achieved, but discharge capacity deteriorates
Solution Approach 1:
The patent inverts the conventional radial capacitor configuration by adopting an axial configuration where the positive and negative electrodes are positioned at opposite ends of the housing. This inversion of the spatial arrangement allows for lower internal resistance and better current discharge performance while maintaining a compact overall structure through optimized internal component layout.
5Volume of moving object
If radial capacitor configuration is used, then compact structure is achieved, but heat generation increases
Solution Approach 1:
The patent inverts the conventional radial capacitor configuration by adopting an axial configuration where the positive and negative electrodes are positioned at opposite ends of the housing. This inversion of the spatial arrangement allows for lower internal resistance and better current discharge performance while maintaining a compact overall structure through optimized internal component layout.
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
This configuration significantly reduces internal resistance, enhances discharge capabilities, and lowers costs compared to traditional aluminum cover plates, while minimizing the risk of liquid leakage and heat generation.
Implementation Method 1
a rubber piece that has an insulating and sealing effect
Implementation Method 2
the rubber piece and the housing are sealedly connected by means of a waisted section provided on the housing
Implementation Method 3
one end of the upper connecting bar penetrates the rubber piece and is conductively connected to a negative electrode welding piece, while the other end of the upper connecting bar is conductively connected to the rolled core
Implementation Method 4
The design incorporates an upper connecting bar and a lower connecting piece for welding
Data Source
AI summary
An electrochemical energy storage device, which relates to the technical field of electrochemical energy storage devices. The device comprises: an upper connecting bar (4), a rubber piece (3) that has an insulating and sealing effect, a housing (7) and a rolled core (5); the housing (7) is cylindrical and is provided with an opening at at least one end, and the rubber piece (3) and the housing (7) are sealedly connected by means of a waisted section (9) provided on the housing (7); the rolled core (5) is provided in an inner cavity of the housing (7); one end of the upper connecting bar (4) penetrates the rubber piece (3) so as to be conductively connected to a negative electrode welding piece (1), while the other end of the upper connecting bar (4) is conductively connected to the rolled core (5); the rolled core (5) is conductively connected to the housing (7) by means of a lower connecting piece (6); and a positive electrode welding piece (8) is conductively connected to the housing (7). The rubber piece (3) features a good insulation effect, a simple structure and low cost. The upper connecting bar (4) and the lower connecting piece (6) are used for welding, and thus internal resistance is low and large current charging and discharging may be achieved.