thermal_runaway
100 mW
Not awful for being first in market.
Tabless design cylindrical cells tests
- Thread starter Pajda
- Start date
Check this video testing the new EVE 50PL.
I know I do not have the correct equipment and I will have a lot of criticism but I cant wait to test the cell and I did it what what I have until @CamLight , @Pajda and @Doctorbass receive the cells. I already shipped to @CamLight and @Doctorbass. waiting in more information from Pajda to shipped to him.
The cell perform amazingly in my opinion. The cables heat up and the resistors I have as well so the resistance was reduced quickly. Temp sensor was lose at the end because the heat but in my book I accomplish my commitment that have at least an idea of what the cell was capable to do.
Now lets wait for the pros for their numbers.
I know I do not have the correct equipment and I will have a lot of criticism but I cant wait to test the cell and I did it what what I have until @CamLight , @Pajda and @Doctorbass receive the cells. I already shipped to @CamLight and @Doctorbass. waiting in more information from Pajda to shipped to him.
The cell perform amazingly in my opinion. The cables heat up and the resistors I have as well so the resistance was reduced quickly. Temp sensor was lose at the end because the heat but in my book I accomplish my commitment that have at least an idea of what the cell was capable to do.
Now lets wait for the pros for their numbers.
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Bengy22
100 W
- Joined
- Dec 31, 2019
- Messages
- 197
Thank you for sending some out to the pros for testing! It will be really interesting to see how they stack up in comparison to the other tabless cells but the voltage drop in your test looked crazy good. I wonder when Ampace, BAK and Samsung are going to release their 5ah offering
Souvlucky
100 mW
- Joined
- Jun 29, 2016
- Messages
- 48
Looking at this 21700 cell, the discharge claims are a bit wild: -25C/125A to -36C/180A discharge pulses from a single cell.
No mention of cycle life, though at this point, adding a "Not for cycle life" disclaimer would probably be redundant.
For reference, the EVE 58E cycle life data is >70% capacity after 500 cycles at 100% DOD under -1C/5.6A discharge and +0.5C/2.8A charge, given 10 minutes rest after charge and 30 minutes after discharge.
The 50PL vs. 50D vs. JP50 match ought to be a hot one!
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This is getting spicy !!!
BatteryMooch
10 kW
Agreed!
Interestingly, the BAK web site lists a 50A continuous rating (versus their LinkedIn post with that 60A/100A graphic): INR2170-50D-bakpower
We’ll have to see what makes it into the datasheet.
Doctorbass
100 GW
I tested the EVE 50PL sent by ZEUS-FL and I was impressed by the result. At 10C ( 50A ) and minimal air flow I was capable discharging these from 100-0% and got 4750mAh(10C) capacity out of the standard 4900mA at C/5.
I also got interesting ACIR and DCIR results. ACIr 2,88miliohms at 50% SOC and 22 degree C You can compare with the P45B
DCIR curve of 5 samples vs SOC @23c
capacity test cycling profile:
High Current discharge setup:
I also got interesting ACIR and DCIR results. ACIr 2,88miliohms at 50% SOC and 22 degree C You can compare with the P45BDCIR curve of 5 samples vs SOC @23c
capacity test cycling profile:
High Current discharge setup:
Pajda
10 kW
Small update
Update:
- more cycles in 5C charts
News:
- Unfortunately, my EVE 50PL results will not be available anytime soon as I was unable to get samples. Many thanks to @ZEUS-FL
who tried hard to find a way how to send samples to my country, but it didn't work.
- But at least I was able to order samples of Ampace JP30 (18650 tabless), they should arrive in 2-3 weeks.
Update:
- more cycles in 5C charts
News:
- Unfortunately, my EVE 50PL results will not be available anytime soon as I was unable to get samples. Many thanks to @ZEUS-FL
who tried hard to find a way how to send samples to my country, but it didn't work.- But at least I was able to order samples of Ampace JP30 (18650 tabless), they should arrive in 2-3 weeks.
Has anyone tried ordering the BAK 60D ?
From what I know, this looks like the only usable 6Ah 21700 cell on the market (3C/5.8C) and one of the first to be officially announced and listed on a big company website.
From what I know, this looks like the only usable 6Ah 21700 cell on the market (3C/5.8C) and one of the first to be officially announced and listed on a big company website.
Bengy22
100 W
- Joined
- Dec 31, 2019
- Messages
- 197
Nice find! I've spoken to @ZEUS-FL in the comments of one of his videos and I believe he has the 30D and 60D on their way (I assume preproduction) for testing. It's listed in the tabless section so it will be very interesting to see how it performs in comparison to the other lower capacity tabless on the market, even though it states 35A max the IR looks very promising. It might have just outclassed the P60B before we even see it!
Pajda
10 kW
Haha! I wish that was true, PajdaYes @ZEUS-FL has the divine powerto obtain and torture samples of new cells before they enter mass production. For us mere mortals, that means several months of waiting.
I'm just lucky and very persistent. Believe it or not, I tried twice to send the cells to you and both times customs blocked the shipment before it even left the U.S. I really did everything I could, but it seems international shipping has its own plans sometimes.Really looking forward to seeing what you do with the JP30s once they arrive your charts always bring a whole new level of insight to the conversation!
Haha! I wish that was true, Pajda
Really looking forward to seeing what you do with the JP30s once they arrive your charts always bring a whole new level of insight to the conversation!
Have you maybe tried with ground shipping? Iirc only air shipping was an issue for batteries.
BatteryMooch
10 kW
Bench Test Results: “EVE 50PL” (unconfirmed) - 50A/125A 5000mAh 21700
Tested for my Patreon supporters last month but here’s the full test report: Bench Test Results: “EVE 50PL” (unconfirmed) - 50A/125A 5000mAh 21700
WE DO NOT KNOW IF THIS IS ACTUALLY THE EVE 50PL. YOU USE IT AT YOUR OWN RISK!
Tested for my Patreon supporters last month but here’s the full test report: Bench Test Results: “EVE 50PL” (unconfirmed) - 50A/125A 5000mAh 21700
WE DO NOT KNOW IF THIS IS ACTUALLY THE EVE 50PL. YOU USE IT AT YOUR OWN RISK!
Attachments
BatteryMooch
10 kW
Nothing, if I had an opinion I could express. But I am just not able to say it’s definitely the 50PL as that wouldn’t be true and exposes me legally. Even if I offer just an opinion and someone blows themselves up, even if their fault, I’ll still be named in the lawsuit for sure.
Each person can reach their own decision though.
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Pajda
10 kW
Vapcell has restocked "EVE 50PL", so finally in 2-3 weeks I will be able to provide my results as well.