Battery Cell Taping Structure for Cartridge-Free Module Stacking
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Solution Overview
Problem
Conventional battery cell configurations require multiple separate cell cartridges, leading to inefficiencies in assembly process, increased size, and reduced energy density due to the use of multiple cartridges.
Innovation Solution
A battery cell design featuring a taping unit with a main tape and auxiliary tapes that integrally covers the battery case surfaces, allowing for stacking without separate cartridges, ensuring fixation and insulation, and improving assembly efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate cell cartridges are used to accommodate battery cells, then fixation and insulation performance are ensured, but the overall size increases and energy density decreases
Solution Approach 1:
The patent merges the functions of multiple separate cell cartridges into a single integrated taping unit. This taping unit simultaneously provides fixation and insulation for the battery cell, eliminating the need for multiple separate cartridges and thereby reducing the overall size while maintaining the required performance.
Solution Approach 2:
The taping unit is designed to perform multiple functions simultaneously: it fixes the battery cell in position and provides electrical insulation. This multi-functional design replaces the need for separate dedicated fixation cartridges and insulation cartridges, achieving space savings without compromising reliability.
2Reliability
If multiple separate cell cartridges are used to accommodate battery cells, then fixation and insulation performance are ensured, but assembly process efficiency deteriorates
Solution Approach 1:
By combining multiple separate cell cartridges into a single integrated taping unit, the number of assembly steps is reduced. The taping unit can be installed as one component rather than requiring the assembly of multiple separate cartridges, thereby improving assembly process efficiency while maintaining fixation and insulation performance.
Solution Approach 2:
The taping unit is pre-assembled with all necessary fixation and insulation features integrated before reaching the assembly line. This preliminary integration of functions allows for faster installation during final assembly, improving productivity without compromising the reliability of fixation and insulation.
3Reliability
If multiple separate cell cartridges are used, then fixation performance is ensured, but the structure becomes less compact
Solution Approach 1:
The patent integrates the fixation functions that were previously distributed across multiple separate cartridges into a single taping unit. This consolidation maintains the necessary fixation performance while creating a more compact and streamlined structure without the redundant components of multiple separate cartridges.
4Reliability
If multiple separate cell cartridges are used, then insulation performance is ensured, but manufacturing cost increases
Solution Approach 1:
The patent combines the insulation function with fixation functions in a single integrated taping unit. This reduces the total number of components that need to be manufactured, stored, and assembled, thereby lowering manufacturing costs while maintaining the required insulation performance through the integrated design.
Data Source
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AI summary
Disclosed is a battery cell, which includes an electrode assembly, a pair of electrode leads electrically connected to the electrode assembly, a battery case configured to accommodate the pair of electrode leads such that the pair of electrode leads protrude at least partially in a front and rear direction of the battery cell, the battery case having an accommodation space formed to accommodate the electrode assembly, and a taping unit configured to integrally cover both side surfaces and upper and lower surfaces of the battery case.