Battery Module Rev 5

Changes that happened for this revision:

• Nickel strips were added to the design since there were issues with the spot welding the EMS sigma clad 60 directly to the cells. It requires too much weld energy and thus the welder heats up quickly and is unable to do quick repetitions of many cells. Nickel strips (0.1mm thick per the Nickel Strip Selection page) are spot welded to the EMS material and spot welded to the cells, minimizing the weld energy required.

• Switched to M4 bolts for series connections instead of M6 bolts per the calculations here: Series Connections Bolts and Nuts

We made the prototype battery module, and worked through all of the assembly issues, addressed as changes in the next rev.

The module design was reviewed with Devon and Robin after the prototype was completed. The powerpoint can be seen here, and a PDF attached here as well:

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