Battery Shell Electrolyte Sharing Channels for Large-Capacity Cells
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Solution Overview
Problem
Existing large-capacity batteries face issues with inconsistent electrolyte distribution and stability among battery cell cores, leading to poor performance and lower yield due to independent electrolytes in each core.
Innovation Solution
A battery shell design with integrated electrolyte sharing channels formed by spliced pipelines, allowing uniform electrolyte distribution and assembly simplification, along with explosion venting channels for thermal management and safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple battery cell cores are connected in parallel to increase capacity, then the battery capacity increases, but the quality control of each battery cell core cannot be effectively controlled and the stability and consistency deteriorate due to independent electrolytes
Solution Approach 1:
The patent merges the electrolyte systems of multiple battery cell cores by introducing a shared electrolyte reservoir that supplies electrolyte to all cell cores through common channels. This unifies the electrolyte environment across parallel-connected cells, ensuring consistent electrolyte levels and composition, thereby improving stability and consistency while maintaining increased capacity.
2Quantity of substance
If multiple battery cell cores with independent electrolytes are assembled into a large-capacity battery, then the battery capacity increases, but the assembly complexity increases and yield decreases
Solution Approach 1:
The patent implements a universal electrolyte supply system where a single reservoir and common channels serve multiple battery cell cores simultaneously. This multi-functional design eliminates the need for separate electrolyte management systems for each cell, simplifying assembly procedures and improving manufacturing yield while maintaining the ability to assemble multiple cells into a large-capacity battery.
3Stability of the object's composition
If a pipeline system is introduced to share electrolyte among battery cell cores, then electrolyte distribution uniformity improves, but the device complexity increases
Solution Approach 1:
The patent segments the pipeline system into modular components including a reservoir, common channels, and individual cell connections. This segmented design allows for simplified manufacturing and assembly of each component while achieving uniform electrolyte distribution across all battery cell cores through the organized network of channels.
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
Improves the performance and safety of large-capacity batteries by ensuring uniform electrolyte distribution, facilitating electrolyte replenishment, and effectively managing thermal runaway through directed fume discharge.
Implementation Method 1
the sealing film is dissolved when encountering an electrolyte
Implementation Method 2
the pipeline is provided with a second through hole on a pipe body, and the first through hole communicates with the second through hole
Data Source
AI summary
A battery shell, a battery cell and a large-capacity battery, which mainly solve the problem of poor performance of existing large-capacity batteries. The battery shell is provided with a first through hole and is also provided with a pipeline covering the first through hole and extending along a thickness direction of the battery shell, the pipeline is provided with a second through hole on a pipe body, and the first through hole communicates with the second through hole. An electrolyte sharing channel of a large-capacity battery is formed through the pipeline, and battery cells in the large-capacity battery may be in a unified electrolyte environment, thereby improving the performance of the large-capacity battery.