DIY Lithium battery with the modular caps of Vruzend

in utopian-io •  6 years ago 

I'm a member of the Formula Student team Eleven-O-Six Racing Team at the university Helmut-Schmidt-Universität/Universität der Bundeswehr Hamburg. We are a small team and would like to take off with a new and innovativ car in the season 2018/2019.

Therefore I would like to construct a starter battery made of 16 LiFePo4 cells with a selfmade battery management with the product of the Kickstarter campaign initated by VRUZEND. The first picture shows all the parts I get for funding their Kickstarter project.

all parts of the package

The following image shows the connection to the battery.

bottom view of the terminal cap

With the next image I show you the top site of the terminal cap. Through the screwed bolt your are able to connect many batteries with metal sheets.

top view of the terminal cap

With Fusion 360 from Autodesk I redesigned the terminal caps for VRUZEND and build my desired battery pack as shown in the next picture.

battery pack

Afterwards I assembled the presented parts and LiFePo4 cells APR18650M1-A from A123 Systems. The assembled battery pack looks very similar to the modeled one.

assembled battery pack

In a further step I would like to build a battery management system for this battery pack. This one should include the options of over- and undervoltage protection and monitoring as well as temperature and current monitoring. An Arduino Nano should be the control part.

I would like to get your suggestions for my current and future developments. I will share the whole development https://github.com/sodom89/starter-battery.

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