Molicel INR-21700-P42A

Lithium Ionen Industriezellen IMR, INR, ICR & LiFePO
jonathantang
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Re: Molicel INR-2100-P42A

Beitragvon jonathantang » Di 2. Apr 2019, 14:14

Hi Rutzki73,
In general, Agreed with your point of view, However, spec/data sheet of Molicel usually stated for a max range, Which they usually more conservative than competitor, For real grade A production, Out-going-inspection usually well limited within <=11mohm, Which compared with Samsung, Even data sheet shown <=12mohm, Usually almost reach limits, That’s interesting company behavior analysis behind :)

Meanwhile, most of e-vtol which going to launch in this couple years development from Uber / Bell ..etc, only using Molicel P42A after various and crucial test of battery, Especially focus on cycle life performance in critical condition, And these manufacture mostly compare with market competitors already, I’ll see what i can found for public comparison data especially address to aging/cycle life test result soon as public reference here.

In My humble private opinion, Samsung are just step into high-drain battery business with NCA chemical compound this couple years, Maybe vapers have limited choice by availability, But i do see Sony/Murata & Molicel’s NCA/High Drain power cell are more broadly using in military/critical application from industrial point of view. Anyway, Just my own opinion.

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Rutzki73
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Re: Molicel INR-2100-P42A

Beitragvon Rutzki73 » Di 2. Apr 2019, 16:42

Hi jonathantang,

I have to disagree with you on some pints, but still you can´t hear anything negativ about this battery.

1. Internal resistance - even Mooch measured high internal resistance on the Molicel in comparison to the 40T (15.2 mOhm Vs. 18,5 mOhm)

2. The rapidly drop on Voltage nf the Molicel is an indication for the higher internal resistance as well as the higher temperture.

Still we are talking about very small differences, but one must mention them.

Samsung SDI has been the largest manufacturer of Li-Ion batteries in the world and their range of products include High-Capacity as well as High-Drain batteries and everything in the middle :D Samsung SDI has been a very conservative company regarding their rates. You can see that on the 25R and 30Q as well as on the 30T. With the 21700-40T I agree, it seems like the battery is not as high-drain as they claim it to be...on the other hand also other manufacturer tend to "up-grade" their batteries (including Molicel with the 20700 :D )

But again...we are talking here about nuance...I daubt, if the normal vaper can even make a difference...
Lügen haben kurze Beine, nur Willi lügt nie!

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shadockan
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Re: Molicel INR-2100-P42A

Beitragvon shadockan » Fr 5. Apr 2019, 06:44

It is impossible to understand a vaper the difference of 0.02 - 0.05 volts in use.
These differences are just to see the performance of the batteries.
In actual use, to understand the difference, the difference should be greater than 0.10 volts ..... at least ......

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shadockan
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Re: Molicel INR-2100-P42A

Beitragvon shadockan » Fr 5. Apr 2019, 06:57

LG features HG2 capable of 20A.
The truth is that .......:
- In continuous discharging mode, it is capable of 15A from 4.20 -> 2.50 Volts, ** without exceeding 80 ° C **

LG, however, featured the battery capable of 20A after discharge ... ** without temperature limit ** ...

So Samsung and Molicel on the 40T - P42A could do the same ....


LG HG2 θερμοκρασια.jpg
LG HG2 θερμοκρασια.jpg (115.21 KiB) 143 mal betrachtet

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Rutzki73
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Re: Molicel INR-2100-P42A

Beitragvon Rutzki73 » Fr 5. Apr 2019, 08:17

If you look at the voltage drop (sag) on the HG2, you can see under 30A discharge almost 1V of a drop. That is way too much...At around 15A you can see the battery is reaching around 3,60V...that is IMO the real rate for this battery.
Most probably LG would like to show, that also on discharge rates above the specifications the battery reaches at least 90% of rated capacity.
Frankly speaking and from the perspective of a battery assembler (mainly batteries for eBikes) in our list Panasonic is number 1, follows by Samsung SDI and Muara (mainly at low capacities) and at the end LG Chem. But that is a very subjective opinion.
The US18650V3 (2200 mAh) from Murata is one of the best long-life batteries I have ever seen in term of cycle-life.
Lügen haben kurze Beine, nur Willi lügt nie!

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shadockan
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Re: Molicel INR-2100-P42A

Beitragvon shadockan » Do 11. Apr 2019, 04:13

I totally agree Rutzki.
The LG HG2 is a 15A battery.
Not 20A.
To support this statement I put the photo of the discharge without temperature cuts.

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Joergl
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Re: Molicel INR-2100-P42A

Beitragvon Joergl » Do 11. Apr 2019, 04:50

Die HG2 wurde reichlich gehypet...und ich hatte 8 Stück von denen. Da ich nicht grade zimperlich mit Akkus umgehe...sind die auch recht schnell gealtert und mittlerweile alle bei den Altbatterien gelandet.

Mit 25R verhält sich das genauso: Nix durable. HE4 und HE2: dito. 30Q...hatte ich nie. Sind mir auch zu rosa... :lol3:

VTC5 und VTC5A sind weiterhin meine Favoriten...ja, auch VTC5! So wahnsinnig viel macht das A in der Praxis nicht aus. Ich habe 20 VTC5 und 4 VTC5A in Benutzung, die schenken sich nichts. Die ältesten VTC5, die ich habe, sind von Anfang 2015 und mittlerweile als Taschenlampenbatterien deklariert. Tot sind die aber noch lange nicht.

Uff, ganz schön ot alles...aber ist ja April! :D

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shadockan
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Re: Molicel INR-2100-P42A

Beitragvon shadockan » Do 11. Apr 2019, 16:58

The same with 25R: Nix durable. HE4 and HE2: ditto. I never had 30Q ... Are too pink for me ... : lol3:

:wall: :loco: :lol: :lol: :lol:

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sk4477
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Re: Molicel INR-2100-P42A

Beitragvon sk4477 » Fr 12. Apr 2019, 03:07

Jörgl bringt es präzise auf den Punkt. ;-)

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shadockan
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Re: Molicel INR-2100-P42A

Beitragvon shadockan » Fr 12. Apr 2019, 06:17

No matter the colors .....
The man stands out from elsewhere .....

For example ...
- my wife will not tell me when to wash the dishes
- Will not the woman tell me how and when to put laundry.

I WILL DO IT WHEN I WANT .....




:loco: :lol3: :loco: :lol3: :lol: :lol: :lol:


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