Solid-State Energy Storage Cell Sleeve Compression Assembly
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Solution Overview
Problem
Existing methods for producing electrochemical solid-state energy storage cells face difficulties in achieving a tight connection between layers due to the need for high pressures, which are difficult to realize without external machinery.
Innovation Solution
A method involving a sleeve that surrounds the energy storage unit and reduces its circumference to apply pressure uniformly, using plastically or elastically deformable materials to compress the unit, allowing for simpler and more practical production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If high pressures are applied to ensure tight connection between layers, then connection quality is improved, but device complexity and difficulty of implementation increase due to requirement of external machinery
Solution Approach 1:
The sleeve is designed to exert compression force on the energy storage unit autonomously through its own elastic recovery, eliminating the need for external pressing machines. The sleeve's elastic properties enable it to automatically maintain compression force after being deformed during assembly
Solution Approach 2:
The sleeve's elastic modulus and geometric parameters are specifically designed to provide the required compression force. By changing the sleeve's material properties and dimensions, the appropriate compression force is achieved without complex external equipment
2Force
If external machines are used to exert pressure, then compression force is achieved, but ease of manufacture deteriorates due to complexity of production process
Solution Approach 1:
The sleeve serves dual functions: it provides structural containment and autonomously generates compression force through elastic recovery. This self-service capability simplifies manufacturing by eliminating separate compression equipment and reducing assembly steps
Solution Approach 2:
The sleeve performs multiple functions simultaneously: mechanical containment of the energy storage unit, application of compression force, and maintenance of tight connections between layers. This multi-functionality reduces the number of components and simplifies the manufacturing process
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 sleeve-based compression method enables a uniform and effective pressure application without external machinery, resulting in a simpler and more efficient production process for solid-state energy storage cells.
Implementation Method 1
the sleeve is provided with an axially extending interruption, wherein a first free end and a second free end are situated opposite each other at the axially extending interruption. The circumference can be reduced, in particular, by fastening the first free end and the second free end to each other
Implementation Method 2
The sleeve can be formed, in particular, entirely or partially from a plastically deformable material. This leads, in particular, to a reduction in circumference, in particular including a change in the projections, being maintained and not being reversed again due to elasticity
Data Source
AI summary
Methods for producing an electrochemical solid-state energy storage cell are provided, the method comprising introducing an energy storage unit into a sleeve, the energy storage unit comprising solid, electrochemically active layers; and reducing a circumference of the sleeve so as to compress the energy storage unit. Electrochemical solid-state energy storage cells produced using the methods herein are further provided.