Cell & Pack Manufacturing

Cell & Pack Manufacturing Challenges

slow throughput due to long time required; fire (most factory fires occur here)

Manufacturing Process Map | 3. Formation

Manufacturing Process Map | 3. Formation Charging & Discharging Electrochemical activation. SEI is formed on the anode

Aging Battery is stored at a certain temperature and humidity for an even electrolyte dispersion and SEI stabilization

5-25 days

of total manufacturing cost

time

scrap rate

Charging, Discharging, & Aging The previous processes are repeated

Challenges

throughput; factory footprint

Challenges throughput

Degassing

Challenges

residual gas inside the cell; seal quality; throughput (a lot of additional CAPEX)

Pouch only. Air pocket with gas (sacrificial gas bag) formed during aging is cut off inside of vacuum chamber.

Quality Control End of line check capacity, resistance, voltage, and cosmetic

Challenges

cosmetic & variation in capacity; yield

*Graphics courtesy of LG Energy Solution. Reproduced with permission.

Source: LG Energy; BCG; RWTH PEM

Extracted from the PDF; charts and images may read imperfectly.