#Li-polymer Battery

[gadgetguruarena]

[emergingpowerbatteries]

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[fatihulusoy]

Greetings yet again folks! Before today's news i should ask this: what would you think when wearable tech is mentioned? AR/VR glasses? A smart watch? a pair of fancy glasses? nfc based products or was it something else for you?

what if i tell you there is a battery that is so stretchable and bendable that can be tailored between linings of your clothes now what would you think?

Meet the age of stretchable batteries people!

in that case i should mention when people of today was so busy with nonsense politics and rightist or leftist ideas there were quite a race between the biggest tech schools and companies for manufacturing this tech such as apple, samsung, stanford, Yokohama National University, zotach (japan based wearable tech company), sydney's UNCW, Australian research comity and more.. you get the idea..

so what is this tech in its core?

basically building more softer and more long term reliable materials to replace our common daily use batteries

in term of materials it nearly uses our common li-on batteries but these are mainly works like electrodes and often use polymers, hydrogels, and other flexible materials for electrodes and electrolytes. we can see in recent inovations include the use of stretchable conductors like gold nanowires or carbon nanotubes.

BUT what these mambo, jambo, wombo, combo means for public eye?

much longer active use time, higher adaptability, flexible form factor yet lower energy and power density.

for now this tech has been used in certain medical implant cases, wearable techs, tv's, and watches for now but there is some attempts to imply this in to textile industry recently..

and japan is seems like ahead of the race for now with Zotac’s VR GO 4.0 backpack

this is a backpack pc and its power source is tailored between in entire foam/ fiber pad. this "pc" is specifically made for VR/AR and streaming which includes

11th Gen Intel Core Mobile i7-11800H processor, an NVIDIA RTX A4500 graphics card with 20GB of GDDR6 memory and 7,168 CUDA cores, 16GB (32GB maximum) of DDR4 RAM, an M.2 slot for storage, a 2.5′ SATA 3 hard drive/SSD bay for storage, three USB 3.1 Type-A ports, a single USB 3.1 type-C port, DisplayPort, and a 12V DC outlet, all powered by dual 86.4 watt-hour hot-swappable batteries.

like i said this tech is still under developement stage and people still trying to make this tech better than other compettitives...

time will show us what will it gonna be turn out at the end..

lastly.. see you guys tomorrow...

sources:

https://onlinelibrary.wiley.com/doi/10.1002/adma.202204457

[orangameelectronics]

Stay Charged On The Go with the 10000mAh Power Bank

Introducing the Power Bank 10000mAh for Phone with Digital Display and Built-in 4 Cables - the ultimate solution for staying connected on the go. Crafted from durable ABS material and powered by a high-capacity 10000mAh Li-polymer battery, this power bank is designed to keep your devices charged and ready for action.

Featuring a digital display for easy monitoring of battery levels and built-in lightning, Micro-USB, Type-C, and USB cables, this power bank offers unparalleled convenience. With 2 input and 2 output interfaces, you can charge up to 5 devices simultaneously, making it the ideal companion for tech-savvy individuals.

The sleek and ultra-thin design of this power bank allows you to power up multiple devices at once without adding bulk to your bag. Whether you're traveling, working, or exploring the great outdoors, this power bank ensures that you never run out of battery power when you need it most.

Keywords like #TechInnovation, #GadgetLovers, and #ChargeOnTheGo highlight the innovative features and practicality of this power bank. With fast charging capabilities and high capacity, this power bank is a must-have for anyone who relies on their devices to stay connected and productive throughout the day.

Stay connected everywhere you go with the Power Bank 10000mAh for Phone. Say goodbye to low battery anxiety and hello to uninterrupted power wherever your adventures take you. Stay juiced up, stay connected, and stay ahead with this powerful charger that is designed to enhance your mobile experience. Charge on the go with this essential tech accessory that ensures your devices are always ready for action.

[materialsscienceandengineering]

Xanthan gum, derived from plants like cabbage and known for its carbohydrate content, serves as a natural protective barrier in cosmetics. In a recent development, this remarkable substance has been harnessed to create a protective shield for battery electrodes, rather than for the skin. Professor Changshin Jo from the Graduate Institute of Ferrous & Eco Materials Technology and the Department of Chemical Engineering and Jooyoung Jang, a PhD candidate, from the Department of Chemical Engineering at Pohang University of Science and Technology (POSTECH), have crafted a protective film by blending polymers. This film enhances the durability of battery electrodes, and their research findings have been featured in the international journal Energy Storage Materials. With renewable energy sources like solar power being inherently intermittent, the importance of energy storage systems (ESS) is steadily growing. ESS technology enables the capture and efficient use of electricity when needed, making it a crucial element in harnessing renewable energy. While lithium-ion (Li-ion) batteries have traditionally been employed for ESS applications, their high cost and concerns about lithium depletion have prompted ongoing research into alternative solutions.

Read more.

[biggestdev]

Converting a battery backup to Lithium because I hate myself

I've got a whole bunch of battery backups in my home, one on each computer, and a big one in my server rack in the basement. I've also got a few out "in the wild" at some of my family's places. They're great, where I live in the northeast US, the power grid is stable enough that most outages are only minutes long, and these backups (technically called a UPS - Uninterrupted Power Supply) do a great job keeping computers running through them.

My issue is the batteries. They all run on lead acid batteries, aka the same kind that's in your car, and they dont last long in this kind of environment, I'm lucky if I get 3 years out of one. On top of that, their battery life detection is terrible, It's about a 50/50 shot whether I get a warning about a dead battery pack before the next power outage takes it down without warning. Keeping track of that with just one or two is annoying, let alone 10 of them!

Lithium UPS's exist, and theoretically last many years longer, but they are many times more expensive than a normal backup. I'd like to not spend new-car money replacing a dozen UPS units, so I did some math instead.

I have a husk of a ups (no battery), and I tested it out: the open circuit voltage on the battery cable is 27.6 volts, which just happens to be almost the exact voltage needed to float charge a series of 8 Lithium-iron-phosphate (LiFePo4) batteries!

Why is that exciting? Usually when you think of lithium batteries, you think of lithium-ion (also can be called lithium-polymer) batteries. These are the batteries in your laptop and phone... And also Tesla cars. They hold more energy than a LiFePo4 battery, but are very sensitive to temperature, over and under-voltage, over-charging, and over-current conditions. Abuse them too hard, and they swell up and pop! That's why Teslas seem to catch fire more often than other cars: most other companies gave up range for a battery chemistry that isn't a ticking time bomb, like LiFePo4.

These LiFePo4 batteries can take a beating compared to Li-ion ones. Most importantly, they can be "float" charged, that is, left on the charger 24/7, without worrying about overcharging it and blowing caustic smoke everywhere. This is critical, because I'm attempting a direct drop-in swap for the old lead battery in this UPS, because float charging a lead battery is basically a requirement, and doing that to a Li-ion battery is asking for a fire!

Using a Li-ion pack would require a custom charging circuit, as the UPS's 27.6V is not correct for any configuration of Li-ion, and would either under charge the pack, losing me 50% of my capacity, or overcharge it, and make it explode. It would also have to stop the batteries from being float charged, again to keep the battery from exploding, while fooling the UPS into thinking a battery is still attached so it doesn't beep at me all the time, and my head is spinning just thinking about how that would work. Much easier to give up capacity for a simpler, and more robust battery.

This UPS can deliver 900 watts of power on battery, that equates to roughly 30 amps of current from the 27.6V battery pack. Adding a safety factor, I bought a BMS (Battery Management System) rated to 50 amps. A BMS is essential, as it offers extra protection against short circuits, over and under-charging and temperature cutoff. Also cell balancing, which keeps all the cells at the same level of charge during use (if they go out of sync-that's bad, is all I'll say for now). The batteries are rated for 120 amps continuous draw, so I am well under the limit where the cells would self-immolate.

With all that said, here's the guts:

Looking close, you might see that I had to cut some plastic out to make it all fit. That's an error on my part-I didn't measure right. If I make more, I'll definately be using a smaller cell, so it will be a proper "drop in" mod. Lots of drilling, cutting, and filing to make this all fit!

It took several hours to link up the cells, terminate the balancing wires (the small red spindly ones), and and stuff them in the battery box. That's a LOT longer than I was hoping it would take, but the on-the fly mods took a lot of time. but eventually, it all fit in, and I was able to test it:

It works! I unplugged it from the wall, and it stayed on! For now, I am in full helicopter parent mode, since I don't want to deal with a lithium fire, even though my math checks out and the UPS should never get the the point that these cells are ever "abused". I only leave it on when I'm in the room, and when I leave, I unplug from the wall, and remove the red lead from the battery, so no charge enters or leaves while I'm not there to watch it.

In theory, the only issue with this retrofit will be a useless runtime meter. The "minutes of runtime" meter is measuring the voltage of the battery as it discharges to estimate how much longer it will last, and the voltage drop over time is different for lithium and lead, so the meter won't be measuring accurately. Once I'm confident it won't explode randomly, I will likely install it permanently somewhere in one of my compters.

Wish me luck!

[sukimas]

please share with the class the most novel misadventure in good lab conduct you've had to live through. bureacratic or clerical issues included + bonus points if you're implicated

Once upon a time, there was a trio of research assistants. These research assistants worked with alkali metals in their daily life; they knew quite well, of course, that alkali metals react with water (rapidly and violently) and air (slowly, but the oxide created is explosive.)

These research assistants made some Li-metal batteries to test the durability of a certain polymer material under the electromagnetic and physical stress of being in a battery. They took the batteries that shorted back to the wet lab and opened them up to remove the polymer material and see if it had any notable differences to before it was tested. The disassembly went fine (though they had to use a manual file as using a mechanical one would have possibly created a heat enough to have ignited any lithium oxide that was there.) They removed the polymer material and stored it for safekeeping, but now they had a bunch of lithium metal outside of inert atmosphere.

The oldest research assistant wanted to know where the liquid to store the lithium metal was (as in organic solvents lithium generally won't oxidize.) The middle research assistant had fucking had enough after the filing escapades, and gestured vaguely to the back of the lab. The youngest research assistant figured that they'd go look for some mineral oil, since that's the most commonly used liquid to immerse alkali metals in for safekeeping.

However, when the oldest and youngest research assistants looked around the lab, they saw that the mineral oil was out of reach of both of them. (Neither of them was >165cm, you see, and it was on a high shelf.) However, that was fine. There were other organic solvents in the lab, at a much more reasonable height (in the flammables cabinet.) The oldest research assistant looked through the cabinet, but most of them were not in sealed containers- water might have gotten in. In addition, some of them were less than 99% what they were supposed to be, therefore some of that impurity could be water.

The oldest research assistant pulled out one of the few sealed bottles that was 99.9% pure (HPLC grade). They poured some of the liquid into a beaker- enough to cover all the pieces of lithium metal that remained. The liquid, by the way, was 99.9% pure dry methanol.

The two research assistants carefully placed the lithium metal in the beaker in the fume hood. They then proceeded to immediately slam the fume hood sash down.

You see, dear reader, alkali metals don't just react with water. Though that's what you'll see if you read about them online, they actually just really like to form hydroxides. So if something has an OH group attached to it, alkali metals will react. Oftentimes more rapidly than with water!

The lithium chunks were fizzing, hissing, and skidding around on the surface of the water inside the fume hood. Luckily for us, however- I was the youngest research assistant in this scenario- we were working with lithium, the most electronegative and lightest of the alkali metals. Due to this higher electronegativity, it reacts less rapidly with OH groups than the heavier alkali metals do. So there was no explosion, as fun as that might have been with the sash down. The moral of the story is to use your head about chemical interactions, and don't believe everything you read on university EHS websites.

Anyway, the oldest research assistant is working at one of the top universities in the country now. I wish them all the best.

[selloldmobile]

Honor 90 Price in India 2023, Specs - RecycleDevice Blog

Honor 90 Price In India

Honor 90 Details

Design & Display

The Honor 90 has a 6.7-inch (17.02 cm) AMOLED screen with a 1200 x 2664 pixel resolution. The front camera is accessible through a punch hole in the bezel-less design. The screen has a 1600 nits brightness rating and a pixel density of 436 ppi. It allows for capacitive, multi-touch input and displays 1B colour reproduction. The ratio of the screen to the body is around 90.34 percent.  It comes in Midnight Black, Emerald Green, Diamond Silver, and Peacock Blue colour variants and weighs 183 grammes. For quick and safe access, the phone has fingerprint and face unlock options.

Camera

The Honor 90 has a triple back camera system that includes a 200 MP main camera with a wide-angle lens and an f/1.9 aperture, a 12 MP ultra-wide-angle lens and a 2 MP depth sensor, both with f/2.2 apertures. A single 50 MP sensor with an ultra-wide-angle lens and an f/2.4 aperture makes up the front camera. While the front camera can also record films at the same quality and frame rate, the back camera can only record videos at a maximum resolution of 3840x2160 pixels at 30 frames per second.

Performance & Storage

The Honor 90 is equipped with an octa-core Qualcomm Snapdragon 7 Gen 1 CPU that powers it from the inside out. For seamless multitasking, it has 12 GB of RAM. Internal storage for the gadget is 256 GB, and it runs the Magic UI version of the Android v13 operating system.

Battery & Connectivity

A non-removable Li-Polymer battery with a capacity of 5000 mAh powers the phone. When a quick recharge is required, it offers 66W fast charging technology. The Honor 90 includes two Nano SIM slots that can accommodate both 5G and 4G networks in a dual SIM configuration. It is also possible to use voice over LTE (VoLTE). The gadget has Wi-Fi connectivity with compatibility for a number of bands, including 5GHz and a/ac/ax/b/g/n. Smooth communication choices are provided via Bluetooth v5.2, USB Type-C with USB OTG compatibility, GPS with A-GPS and Glonass, NFC, and infrared.

The Latest Honor 90 News

Pricing for the Honor 90 is Speculated for a Mid-September India Launch

The Honor 90 smartphone's forthcoming debut date and price in India have been made public according to a report.

Honor 90 India Release Date Predicted for September; 300MP Triple-Camera Setup and Snapdragon 7 Gen 1 SoC Are Included.

A high-end mid-range smartphone called the Honor 90 will soon be available in India. In India, the smartphone is anticipated to go on sale in September.

Disclaimer: Specifications shown may be different from the actual product. We cannot guarantee that the information provided on this page is 100% correct. Please check with the retailer before purchasing.  you have old mobile phone then sell your old Mobile Phone or any other Smartphone at RecycleDevice for good exchange value.

[digitpro-uk]

JBL Flip 6 Bluetooth Speaker Waterproof

Description: Model No.: JBL Flip 6 Output power: 20W RMS for woofer,10W RMS for tweeter Frequency response: 63Hz – 20kHz Signal-to-noise ratio: >80dB Battery type: Li-ion polymer 17.28Wh(equivalent to 3.6V/1500mAh) Battery charge time: 2.5 hours (5V/3A) Music play time: up to 12 hours (dependent on volume level and audio content) Cable type: USB – C charging cable Cable length: 1.2m/47.2″ Maximum…

[universalluxestore]

We’re always on the go (and glued to our phones)…and that can lead to battery dwindling fast. Our Leather-Surface Power Bank helps solve that issue with a ready-to-go (and power up on the go) device. ✅ 8000mAh ✅ Rechargeable li-polymer battery ✅ 5V input/output ✅ Supports microUSB and Apple devices Get 15% off with promo code UNILX200231. Order now before the offer ends!

[gadgetsinfo]

Realme 10 Pro Coca-Cola Edition 5G

Realme 10 Pro Coca-Cola Edition 5G Price & Specifications 🔥 Display: 6.72 inches 1080x2400 px (IPS LCD) 🔥 OS: Android 13, Realme UI 4.0 🔥 CPU: Qualcomm SM6375 Snapdragon 695 5G (6 nm) 🔥 Storage: RAM: 8GB & ROM: 128GB 🔥 Camera: Back: 108MP+2MP & Front: 16MP 🔥 Battery: Li-Polymer 5000 mAh (33W fast charging) 🌐 Visit our site for Realme 10 Pro Coca-Cola Edition 5G Price & Specifications

[emergingpowerbatteries]

High-Performance Smart Li-Polymer Battery Packs

Discover the latest in battery technology with our high-performance smart Li-Polymer battery packs. Designed for optimal efficiency and longevity, these advanced battery packs feature intelligent monitoring systems that ensure safety and reliability. Ideal for a wide range of applications, from portable electronics to electric vehicles, our smart Li-Polymer battery packs deliver exceptional power density, fast charging capabilities, and long-lasting performance. Upgrade to smarter energy solutions today.

[orangameelectronics]

Elevate Your Outdoor Adventures with Our 50000mAh~100000mAh Power Bank Camping Companion

Experience the ultimate power solution for your camping and outdoor escapades with our 50000mAh~100000mAh Power Bank Camping Edition. This rugged and versatile portable charger is designed to keep you connected, illuminated, and fully charged no matter where your adventures take you. Let's explore the outstanding features that make this power bank a must-have for outdoor enthusiasts.

Crafted from durable ABS+PC material and powered by a high-capacity 50000mAh~100000mAh Li-Polymer cell, this power bank is a powerhouse of energy that ensures you have ample power for all your devices during your camping trips. With support for multiple input interfaces, including Type-C, Lightning, and Micro-USB, charging this power bank is as convenient as charging your devices.

Equipped with a digital display and strong light flashlights, this power bank offers both functionality and illumination in one compact package. The four USB simultaneous output feature allows you to charge multiple devices simultaneously, ensuring that you and your camping companions stay connected and powered up throughout your outdoor adventures.

Featuring advanced polymer battery technology and a multi-protection motherboard, this power bank prioritizes safety and efficiency, giving you peace of mind while you explore the great outdoors. Its compact dimensions and lanyard design make it easy to carry and use, ensuring that you have power at your fingertips whenever you need it.

Keywords like #PortableCharger, #Flashlight, and #StayConnectedEverywhere perfectly capture the essence of this powerful camping companion. Stay juiced up, charge on the go, and embrace the convenience of fast charging with our high-capacity Power Bank Camping Edition. Elevate your camping experience, stay connected everywhere, and make the most of your outdoor adventures with this essential tech gadget by your side.

Unleash the power of our 50000mAh~100000mAh Power Bank Camping Edition and embark on your outdoor journeys with confidence. With its advanced features, rugged design, and high capacity, this power bank is the perfect companion for camping enthusiasts and outdoor adventurers seeking reliable and efficient charging solutions. Charge up, light up, and stay connected on the go with our versatile and robust power bank. Follow us at https://orangame.en.made-in-china.com/product/VONaBebvMlcE/China-50000mAh-100000mAh-Power-Bank-Camping-with-Digital-Display-and-Strong-Light-Flashlights.html?pv_id=1idm35av6687&faw_id=1idm3ca4710d if you’re interested!

[atplblog]

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