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Manufacturing Process Map - 4. Pack Assembly CHALLENGES
surface cleaning; weld quality; cell to cell matching
CONNECTING BATTERY CELLS Battery cells are connected after surface is cleaned
MODULARIZATION The cells are attached to the module case
CHALLENGES
damage due to placement (primarily pouch); large machinery required due to module mass & dimensions, safety at high voltages
CHALLENGES
battery pack integration with other components in EV or BESS
CHALLENGES
ensuring cable flexibility, Battery cells handling
PACK ASSEMBLY The modules are put in the battery pack and connected
APPLYING BMS A Battery Management System is applied to battery pack
FINAL INTEGRATION The battery packs are then used in Electrical Vehicle (EV) and Battery Energy Storage System (BESS)
FINAL TEST A series of electrical test including charge and discharge cycle are performed to ensure the highest quality
CHALLENGES
correct wiring and integration of the BMS
CHALLENGES
testing sequence, results and accepted limits vary between manufacturers, resulting in lack of standardization
*Graphics courtesy of LG Energy Solution. Reproduced with permission. Sources: LG Energy; RWTH PEM
Extracted from the PDF; charts and images may read imperfectly.
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