Nested Stacked Battery Cell Layout for Variable Compartment Sizes
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Solution Overview
Problem
The challenge lies in producing lithium-ion button batteries in batches that can be adapted to various battery compartment structures of different sizes and shapes, while maintaining efficiency and ease of mass production.
Innovation Solution
The solution involves a battery cell design comprising two stacked cells of different sizes, where the first stacked cell and the second stacked cell include alternately stacked first and second electrode plates. This design allows for flexible adaptation to different battery compartment structures by ensuring the projection of the first stacked cell is within the range of the second stacked cell, facilitating a simple manufacturing process and easy mass production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If lithium-ion button batteries are produced in batches for different terminal products, then productivity is improved, but device complexity increases due to varying battery compartment structures
Solution Approach 1:
The battery is divided into multiple stacked cells (first stacked cell and second stacked cell) with different sizes, where each cell contains alternately stacked electrode plates. This segmentation allows the battery to be configured in different stacking patterns to match various battery compartment structures, enabling batch production while adapting to different product requirements.
Solution Approach 2:
The first stacked cell is positioned within the projection range of the second stacked cell, creating a nested arrangement where smaller cells are contained within the footprint of larger cells. This nesting principle allows flexible configuration to match different battery compartment sizes and shapes while maintaining a compact overall structure suitable for mass production.
2Adaptability or versatility
If battery cell design adapts to various battery compartment structures, then adaptability is improved, but manufacturing precision requirements increase
Solution Approach 1:
The battery design uses a universal stacking pattern where multiple cells with alternately stacked electrode plates can be arranged in different configurations. The first and second stacked cells both follow the same internal structure principle, allowing them to be adapted to various battery compartment structures through different stacking arrangements rather than requiring different manufacturing processes for each application.
Solution Approach 2:
The first stacked cell and second stacked cell are designed with different sizes, creating an asymmetric configuration where the projection of the first stacked cell falls within the projection range of the second stacked cell. This asymmetric design provides flexibility to match different battery compartment shapes while maintaining consistent manufacturing processes through standardized cell construction methods.
3Reliability
If protective layers and separators are strategically placed to prevent short circuits, then reliability is improved, but device complexity increases
Solution Approach 1:
Protective layers and separators are pre-positioned between the alternately stacked electrode plates before the battery is assembled into the final configuration. This preliminary placement ensures that protective elements are already in correct positions to prevent short circuits, eliminating the need for complex post-assembly adjustments and reducing overall device complexity while maintaining high reliability.
Data Source
AI summary
A battery cell includes: a first stacked cell and a second stacked cell that are stacked. The first stacked cell and the second stacked cell both include a plurality of first electrode plates and a plurality of second electrode plates that are alternately stacked, and on a plane parallel to the plurality of first electrode plates, a projection of the first stacked cell is within a range of a projection of the second stacked cell on the plane. The first stacked cell and the second stacked cell of different sizes are arranged in a stacked manner, so that the battery cell can be flexibly adapted to battery compartment structures of difference sizes, and a manufacturing process is simple and a mass production is easy to implement.