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  • Battery module engineering and manufacturing including but not limited to:

    • Spot welding

    • 3D printing

    • Manufacturing techniques

    • AdhesivesSpot welding

    • Bolted connections

    • High voltage safety

    • Battery testing strategies

    • 3D printing

  • Attending weekly team check-ins and working sessions over the web on discord / in-person @ the bay (Sedra Student Design Center in E7!)

...

  • Basic understanding of Design for Manufacture (DFM) and Design for Assembly methodologies (DFA) (combined, they’re commonly referred to as DFMA)

  • Someone with exposure to a CAD package (SOLIDWORKS preferred)

  • Knowledge of solid mechanics (stress analysis, failure methods)

  • Exposure to rapid prototyping (3D printing)

  • Basic battery building knowledge (e.g. series and parallel, cell module and pack levels)

  • Exposure to technical drawing creation

Communication

Ig we We should stick to putting as less ppl here as possible to avoid confusion with new members? . Also, including emails may be a good idea if ppl want to join after first general meeting and mech gen is over.

Battery Box Co-lead: Owen Li

When: Anytime remote!

Battery Box Co-lead: Eric Zhao

When: Onsite some weekends and most weekday afternoons, remote communication otherwise over Slack

Pic of Donna

Battery Box Co-lead: Donna Insert when Donna’s availableKim

When: Onsite some weekends, available most weekday afternoons and always available on Slack

Email: d28kim@uwaterloo.ca

Pic of Jenna

Battery Box Project Manager: Jenna Kim

Insert when Jenna’s available

(This is from before university but I haven’t changed much)

Battery Box Advisor: Micah Black

When: Onsite some weekends and weekday evenings, remote communication otherwise over Slack

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These are the main tasks we have yet to do in Fall 2023. We’ll try to assign everyone to the task they’re most interested in! More details can be found in each task’s Trello card (ask Donna if you need someone to add you to Trello) and by contacting each task’s project lead.

Trello: https://trello.com/b/V6Ktj92J/battery-box (not sure if we want to put the link or if we’re trying to keep the Trello as clean as possible with less members, feel free to delete)

Project

Description

More Information

Auxiliary Battery

Smaller battery pack separate from the main batteries. Serves several purposes:

  • Ensures the car still moves even if the main battery pack malfunctions mid-race (imagine if our steering and braking suddenly stops while we’re driving at 50km/h)

  • Used for car start-up sequence (aux battery “boots up” the car before we utilize the main pack for safety reasons)

Relevant tasks:

Project Lead: Darton Li

For more information:

Battery Module Manufacturing

Our main battery pack is made up of 9 modules connected in series, with each module being made up of Li-ion 21700 cells in a 4S8P configuration.

Relevant tasks:

  • Module manufacturing

Project Lead: Donna Kim

For more information:

  • Trello Card

  • (I don’t know if we have an overview of the modules to introduce how its designed)

BMS (Battery Management System)

Battery packs are dangerous to use without an electrical system that checks its health/state (temperature, current, voltage, charge balance).

The BMS actively keeps track of the state of the modules and actively protects the cells while also informing the driver of the state of the pack.

Relevant tasks:

  • Making the BMS

  • Board mounts

Project Lead: Jenna K.

For more information:

Enclosure

The enclosure is the box that holds the main battery pack and also the BMS boards.

Relevant tasks:

  • Finish prototyping

  • Board mounts

  • Manufacture finished product

Project Lead: Nicole Choe

(You can also contact Shem Kim if Nicole is busy/unavailable)

For more information:

Telemetry

Our Strategy team uses data about the battery pack to figure out how to optimally use the energy we have stored. They will be following our car in a separate car (not a solar car, just an ordinary one), getting sent this data and communicating with the driver during the race. We have to send this data wirelessly to the car, which is what Telemetry is about.

Project Lead: Katharine Laughton

For more information:

  • Trello Card

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