Large Pouch Module Segmentation for Battery Maintenance
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Solution Overview
Problem
Traditional battery manufacturing methods result in high costs and inefficiencies, with the CTP mode requiring high consistency among batteries, leading to poor after-sale maintenance and limited adaptability, as the entire battery pack needs to be replaced if one cell fails.
Innovation Solution
A large pouch module design featuring laminated or winded cores formed directly into a module, with a housing that includes partition plates to divide the interior into spaces for core assemblies, allowing for cost-effective production and improved volume utilization, and featuring a protective cover made of aluminum alloy for enhanced strength and insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the CTP mode (electric core to PACK directly) is adopted to reduce cost and increase efficiency, then the volume utilization rate of the battery box is improved and the number of battery pack parts is reduced, but the consistency requirement of the battery becomes very high and after-sale maintenance becomes difficult
Solution Approach 1:
The battery system is divided into modular battery modules, each containing multiple battery packs. This segmentation allows individual modules to be replaced or maintained independently, improving after-sale maintenance adaptability while maintaining the space-efficient CTP design benefits for production efficiency
2Ease of manufacture
If the CTP mode is adopted to reduce the number of battery pack parts, then the manufacturing cost is reduced, but the entire battery pack needs to be replaced whenever one battery goes wrong
Solution Approach 1:
The battery system is segmented into multiple independent modules, where each module contains several battery packs. This allows faulty battery packs to be replaced at the module level rather than the entire pack level, significantly improving ease of repair while maintaining cost-effectiveness
Data Source
AI summary
The present disclosure provides a large pouch module and an electric vehicle including the same. The large pouch module includes a plurality of core modules and a housing accommodating the core modules; each of the core modules includes a plurality of core assemblies connected in series, and the plurality of core assemblies are folded in an M-folding manner to form the core module; a plurality of partition plates are vertically arranged inside the housing to partition an interior of the housing into a plurality of spaces. The large pouch module of the present disclosure can be used as the battery of the electric vehicle, which has a low cost, an excellent performance, safety and reliability, and wide application fields.