Lithium Ion vs Lithium Polymer - Don't Choose Wrong!

Lithium-ion Batteries vs Lithium-Polymer Batteries; what's the difference between them and which one's better? Let's compare.
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➡️Li-ion
🔋Pros:
✅Cheaper to manufacture and easily obtainable
✅Have higher charging cycles, so last longer - 2 to 3 years
✅Tend to be slightly heavier than Li-Po batteries
✅Deliver more power in a smaller form factor than Li-Po of similar size.

🪫Cons:
❌More reactive/unstable
❌Don't withstand heat that well
❌Do not support superfast charging wattage
❌Liquid electrolyte can cause leakages or battery swelling.
❌Higher passive discharge rate

➡️Li-Po
🔋Pros:
✅More stable and can tolerate higher temperatures
(thanks to being encased in a hard or soft-shell).
Makes them safer too.
✅Can easily handle higher charging wattage, hence ideal for fast charging
✅Relatively safer than Li-ion as it uses a gel-like electrolyte instead of a liquid one, so no chance of leakage. (Doesn't swell up easily either)
✅Discharge quite slowly when not in use compared to Li-ion
(but it depends on the device and background apps)

🪫Cons:
❌Bulkier than Li-ion
❌Aren't as easily obtained (but that has certainly changed a lot)
❌Lesser lifespan and lower charging cycles than Li-ion (because of their gel electrolyte.
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[GHostCCM]

Actually lithium polymer batteries have longer life charging cycles if you charge them at the same voltage as lithium ion being 4.35v instead of 4.45/4.5v. I've tested lots of devices and lithium ion can barely hit 600 cycles before losing voltage storage capacity, lithium polymer can withstand more than 800 cycles while charging at 67w 4.45v. no idea about 120w or more, testing now a dual battery device with 150w

[yeetdatcodeboi]

Li - Ion - Polymer are the smaller usually flat cells well suited for use in lower current / smaller devices. Li - Ion are bigger, usually the infamous 18650 round green cell, and well suited bigger / higher current devices(vehicles). I was unsure and did some searching that led me to two great sources of information, the other being wikipedia. Thanks and hopefully this comment may help others.

[vitorxavier]

The power delivery part is completely wrong. Lipo batteries although less energy dense, can provide A LOT more current than li ion. High performance racing drone lipo batteries can provide up to 150C current burst. That’s 150x the battery capacity, if we’re talking about a 1200mah cell, that’s 180A of current. Li-ion on the other hand can at most provide 40C, that’s 48A for a same capacity battery. That’s why racing drones will use lipo while long range drones (much weaker) will use li ion batteries.

[mineralisk]

From what you said, Li-Po only makes sense if you are okay with buying a new phone every year or every other year.
If I was buying a flagship phone, I would want it to last for a while. So what Apple and Samsung are doing actually makes sense.

[brandonnandlal]

Very educational video basically answered all the questions I was googling for an hour.. Thanks..🙏

[thefaster]

From my experience using hp since 1990s until now 2024...from nickel cadium.. lithium ion... lithium polymer...yes the lithium polymer is the superb technology...i already use so many hp product from west to east country ..from hp size brick size until now thin size..no more inflated battery. .thank to the bateery engineering...your contribution offort to the word is appreciated.

[joejohnson]

Lithium ion batteries actually lasts longer than 2 or 3 years. They can last 5 to 7 years. Generally a Lithium ion battery retains 80 percent of its storage capacity after 500 to 2000 charges. My advice is if you are going to spend a lot of money on a high end cell phone. Purchase one with the largest capacity battery. One that's preferably 5000mah. This way when the battery is reduced by 20 percent due to hundreds of charge cycles. You still have a decent capacity left for phone to remain in service longer.

[Kareem-cxfi]

Personally, i prefer batteries that last long and have a longer overall life cycles. So i guess that puts me in the Li ion group. Specifically when it comes to phones. I usually have my Samsung phone on battery protection mode, because i would like my phone last me 3-4 years if possible. Fast charging at 15-25watts is plenty sufficient for me, anything slower is definitely a no no for sure. I rarely ever fall into situations where i need faster charging than that. Also, that would require me buying a whole bunch of very fast chargers to make sure i always have one available when i need it.. nah, thats a pass for me.

[hoquality]

Informative. I noticed the lithium polymer battery recently and I was wondering what was the difference between it and lithium ion. I already got my cell phone, so I'm stuck with lithium ion.

[eagleeatsmonkey]

agree with you, my il-poly honour smartphone is still working great pass 4 years already.

[gutyourtrust]

I think you are way off on your safety analysis: LiPo are the ones that swell and catch fire . However they are also technically “lithium ion” batteries, just of the type “polymer.” So when you see a soft pack battery, it is LiPo even if it says “Lithium Ion” on it . All Li-Ion type batteries have a hard case, not a soft case.

[johnvincentbolambao]

straight to the point. this is what i like to hear thanks man

[glytch]

I think for a cell phone, price and charge cycles is more important than extreme charging speeds and discharge rages, and the little bit of lighter weight. Charge cycles is KEY, and energy density.

[jadnouri]

I still haveig a li-pol phone for 4 years .. and still holding charge fine.. charging it onec a day in normal usage.. twice in heavy usage.

[minukarodrigo]

As a person using an early Android phone with a Li-Po battery (Nokia 8), I can confirm that it the battery life is significantly better than my previous phone with Li-Ion battery

[jasona]

from my experience Li-Po really do degrade faster than Li-ion
probably around 250 cycles would equal to Li-ion 600-700 cycles same level of degradation.
this could just be an anamoly as my sample size is not too big.

Li-Po when new, is overall better IMO, but i think the reason apple and samsung still stick with Li-ion is mainly the slower degradation. Price sure too, but hey they don't wanna be known for selling phones that battery lasts for only 1-2 years either. 2-3 maybe.

[Kirmo]

I tend to prioritize longevity. Especially now that new smartphones have 7 years of OS updates

[rayhan]

for some reason most people prefer Li-Ion over Li-Po and I also personally prefer Li-Po more than Li-Ion.
I was even willing to use a lower performance phone with Li-Po which uses Mediatek Helio G95 instead of my old Li-Ion smartphone which has Qualcomm Snapdragon 855 cuz the battery is now like really really suck while my Helio G95's battery is still like 85% of it's performance since I first used it.

Li-Ion battery smartphones are a huge turn off for me this time as I tried Li-Po 4 years ago and my opinions never changed at all ever since. As if they just tried to make excuses to reduce their phone cost because Li-Po is said to be more expensive compared to Li-Ion.

[Mr_natenut]

I've owned several usb power banks over the years. Received some as well. Lithium polymer at least to me seemed cheaper to purchase compared to lithium ion. I opened a few over the years to see what makes them tick. A 2000mah lithium ion powerbank is pricier than a lithium polymer for the same mAh.. 2nd I got 2 phones from a similar year same state of charge kept where ever possible between 40%-80%. (I have ocd issues with SOC of batteries in general.) The lithium ion battery died and the lithium poly is still alive and kicking. We live in a hot climate and I always aimed to keep the temp as cool as possible for both phones. Both phones I got in 2019. The phone with lithium ion died this year.

[serafin]

I have a nokia 6310i from 2005 that have a Li-polymer original battery and if I use the phone it will hold energy for 1 week still. If the telephone is turning off the battery loses maybe 30% per year. So 18 years old and still working well... Well made li-po last so long.