How To Build a Lithium Battery (Part 1 of 2)
Ғылым және технология
In this tutorial, I'll provide step by step instructions on how I built a 48 cell lithium ion battery pack out of 18650 cells.
First I'll cover the mechanical structure and how the cells are held together. Next I'll go over how to join cells together to form parallel and serial connections. I'll show a lot of the details that go into spot welding, and some good techniques to used.
I'll cover how to add a battery management system to the pack to enable proper charging, and not damage any cells. I'll show how to solder on the balance lines while minimizing the heat absorption by the cells.
This is part 1 of a 2 part series. In Part 2 (coming soon!) I'll release all the engineering and design that went into this battery pack, as well as hookup schematics and more details then you'd ever want on how to design your own system.
00:25 Mechanical Structure
00:47 Checking Battery Voltage
01:21 Spot Welding Cells
01:35 Slow Motion Pulse Welding
03:06 Join Cable to Busbars
03:24 Soldering the Cable
04:05 Battery Management System
04:13 Electronic On/Off Switch
04:23 How to Connect BMS Balance Lines
04:55 Battery Reinforcement with Zip Ties
05:07 Output Connector
05:49 Adding Heat Shrink Enclosure
Full write up on my blog: www.adambender.info/post/lith...
Instagram: / bender_designs
Links (Amazon links are affiliate links, and help the channel without costing you anything):
Spot Welder: amzn.to/2QvoyAL
Small Pack Nickel Strips: amzn.to/2Qpcl0o
Large Pack Nickel Strips: amzn.to/2EBN1zz
Cell Holders: amzn.to/2EBNG3Y
XT90 Connector: amzn.to/2KiQneq
Battery Life Display: amzn.to/2VWeEJM
Chargeport: amzn.to/2YX6EKl
10AWG Wire: amzn.to/30RJgzF
22AWG: amzn.to/2W2tsGw
Electronic Switch: amzn.to/2VWAufS
Awesome DIY battery book: amzn.to/2MoFEC1
18650 Batteries: www.imrbatteries.com/samsung-...
Пікірлер: 34
Part 2 here: kzread.info/dash/bejne/mG2avLyPlsaohrQ.html
@kerjaserabutan3157
4 жыл бұрын
Gan harga baterry berapa?
Soldering the main leads off the battery separately then spot welding it onto the battery is so genius I definitely wouldn't have thought of it.
@AdamBender
4 жыл бұрын
Glad you found it useful! Thanks for watching
So underated video, your vlog has the most clear explanation doing diy.
Man, I just found your vidia on a Hackday googling for 18650 stuffs. All the vids and articles Ive looked at, yours was the best I found, its not much different from the rest, but your approach to sharing knowledge while doing the actual work, not stopping to explain stuffs Ill forget in two seconds, whenever this happens I find myself skipping back and forth trying to find information I just heard but couldn't see because some smuch thought his face would be more informational???? But you, youre just doing and talking. Serving just the right amount of visual and auditory information. God dammit you deserve an Oscar for best informational video This vid should be the gold standard of tutorials, or any informational video. Someone give this man a medal
You're everything I wanted to be in a hobbyist
Great video Adam, thank you for sharing.
just what i needed ,thanks ,awesome video
Great work my dude, looking forward to the deep dive!
@AdamBender
5 жыл бұрын
Thanks!
Awesome videos on your channel mate! I hope seeing some more ev or cnc content.
Looking forward to the video of this scooter
Really great video. But my corp firewall blocks the mini links.
Even if the pack's and charger's management circuitry will eventually equalise the charge on each cell, would it not be desirable to precisely match their SoC before assembly? Cheap capacity tester boards are available that can be used to do this to within less than 1% (and of course actually ascertain their capacity to similar accuracy - a simple voltage reading doesn't really tell you this).
Great video not sure I want to spend that much on an on off switch I will stick with an anti spark plug and a cheap switch.. First time I've seen a pack built with all 4 batteries the same group usually there +-+- all the way through got's me rethinking my setup..
Do you have any certain value for the discharge rate of the system?
One should make absolutely sure (by using hot glue or silicone) that all the cables are properly stress relieved. Soldered fine wire connections are really bad strain point and any movement in the wire will cause premature failure over time to that connection. :)
@AdamBender
4 жыл бұрын
Very good point
What is the base copper foil thickness and characteristics, are only ED copper foils used, can RA copper foils be also used, just curious whether RA copper foils are also used in making the anode current collectors : Thanks
I need help on how to to produce lithium battery for solar
So how do I make a 56 volt , about 20 ah battery. Yes I’m series for my ego snowblower. Thankyou
What other device can we use as no one carries that fancy machine at home
@AdamBender
4 жыл бұрын
You could solder the cells, but be careful with the heat, it will damage the cells
Can you make me one
Yes because people that are watching these videos have a fucking spot welder.
“Should read somewhere in the 3 to 4 volt range, if it reads anything else it’s a bad cell” is dangerously incorrect information. Good cells can be 1v and bad cells can be 4v, the voltage has nothing to do with cell health. They need to be tested...
@AdamBender
5 жыл бұрын
Thanks for the feedback! Do you have a link where I can learn more about this?
@chrispfeil6605
5 жыл бұрын
@@AdamBender Hey mate, check out HBPowerwalls processing video: kzread.info/dash/bejne/qJNoycl9fpqYaZM.html
@AdamBender
5 жыл бұрын
@@chrispfeil6605 thanks for the link! Lots of helpful info there
@insevanhouts
4 жыл бұрын
A good cell will never sit at one volt. I personally wouldn't use anything below 3v. I agree a 4v cell could very well be bad though
BREATH man.. On each end of your voice comes so low i really cant hear :P
EXTREMELY FRUSTRATING!!! this guy does NOT explain ANYTHING!!
@omarfa2652
3 жыл бұрын
how about if we want a flat design? what about nickle strip size? what about how to join cells in a different way? goddamn