Composite Battery Parallel Cell Encapsulation
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Solution Overview
Problem
The increasing power consumption of electronic devices due to enhanced functions necessitates higher battery capacity, but existing solutions with multiple independent batteries occupy internal space and reduce energy density due to multiple folded edges and complex tab connections.
Innovation Solution
A composite battery design featuring multiple battery cells connected in parallel and encapsulated in a single film, with a common tab and protection plate configuration to reduce internal resistance, improve charging efficiency, and optimize space utilization by minimizing folded edges and tab connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple independent batteries are used to increase battery capacity, then the battery capacity increases, but the internal space is occupied and energy density decreases due to multiple folded edges and complex tab connections
Solution Approach 1:
Multiple battery cells are merged into a single encapsulation film structure, sharing common protection plates and tabs. This integration reduces the number of separate folded edges and tab connections, thereby decreasing internal space occupation while maintaining increased battery capacity through parallel connection of multiple cells.
2Quantity of substance
If multiple independent batteries are used to increase battery capacity, then the battery capacity increases, but energy density decreases due to multiple folded edges and complex tab connections
Solution Approach 1:
The patent combines multiple battery cells under a single encapsulation film with shared protection plates and tabs. This merging approach reduces the number of folded edges and tab connections compared to using multiple independent batteries, thereby decreasing device complexity while achieving higher battery capacity through parallel cell configuration.
3Quantity of substance
If multiple battery cells are connected in parallel and encapsulated in a single film, then energy density and battery capacity increase by reducing space occupation, but manufacturing complexity may increase
Solution Approach 1:
The battery system is segmented into multiple individual battery cells that are then integrated into a unified encapsulation film structure. This segmentation approach allows each cell to be manufactured independently using standard processes, while the final integration step creates the space-efficient parallel configuration, balancing manufacturing ease with improved energy density.
Data Source
AI summary
The present disclosure relates to a composite battery and an electronic device. The composite battery includes: an encapsulation film; and a plurality of battery cells that are connected with one another in parallel, and are encapsulated in the encapsulation film.