Monday, March 7th 2022

Game-Changing Material Lets Lithium-ion Batteries Keep Almost Full Charge-Capacity for up to 5 years

A game-changing new material promises to keep your "battery health" meter stuck at a 100% for up to 5 years. Lihium-ion rechargeable batteries that power most of today's digital civilization, come with two limitations—one that they can only be recharged a finite number of times; and two, that their capacity reduces over time. On some smartphones, such as the iPhone, this is reported to end-users as "battery health."

Japan Advanced Institute of Science and Technology (JAIST) discovered a new material called [wait for it] bis-imino-acenaphthenequinone-paraphenylene (BP) co-polymer. This serves as a binder material on the anode (positive electrode). A binder is a substance used to coat an electrode to prevent the material of the electrode from falling apart or getting destroyed by the electrolyte. Li-ion cells use graphite anodes that are delicate, and were being coated by poly-vinylidene fluoride (PVDF), but this material had a durability of 500 recharge cycles at full (rated) capacity, and yielding only 65% of capacity the battery is "capable" of (with bare electrodes). Beyond 500 cycles, the PVDF binder wears, taking the electrode with it, which the capacity. JAIST's research has found its material to be capable of sustaining 1,700 recharge cycles while maintaining the battery's recharge capacity at 95 percent. For a smartphone that gets recharged once a day, that's nearly 5 years of full "battery health." The JAIST paper can be accessed here.
Sources: EurekaAlert, PC Magazine
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32 Comments on Game-Changing Material Lets Lithium-ion Batteries Keep Almost Full Charge-Capacity for up to 5 years

#26
Minus Infinity
bugSo not actually game changing, just holding charge for 3-4 times longer.

Like someone above said, we're not short of lab innovations. Wake me up when any of these make their way into consumer products.
It also improves the maximum rated power for a Li Ion from 65% of potential to 95% of potential. That's huge, your say, 3000mAh battery is now more like 4000mAh.
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#27
bobbybluz
As a cancer patient it's my opinion curing cancer and batteries have little if anything in common. I was diagnosed in December of 2017 and began radiation treatment immediately. It'd already begun to metastases so radiation had to be done in more than one area. After that came extremely expensive injections every 90 days ($9,400 just for the drug alone each time). I had the last injection January 27th of 2020. Everything was looking great when I last saw my main cancer doctor last November. Two months ago odd symptoms developed and more tests were done one month ago. The results weren't good. I have to go in for a more thorough round of tests at the end of next month including another bone scan and MRI as well as a new test specific to the cancer I have. Saying "Big Pharma" doesn't want to find a cure is absolutely ridiculous and highly offensive to all involved in the battle against cancer.

I'm elderly and have lived a very full life to this point. It's heartbreaking to be sitting in the waiting room of the cancer lab at the hospital and see young children in far worse condition than I am. They haven't even begun to live their lives and many likely won't get to. Cures for cancer aren't akin to making electrical devices last longer, they're about eradicating a highly debilitating and often fatal disease. This is very personal to me. My birthday is in three days and potentially could be my last one ever. Never equate human life with man-made devices that are trivial in the giant scope of things. I apologize for the rant to those that are also going through what I am because you already know. I'm not in a very good mood at the moment because my biggest cheerleader in this struggle died suddenly Saturday morning at 73.
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#28
Unregistered
bobbybluzAs a cancer patient it's my opinion curing cancer and batteries have little if anything in common. I was diagnosed in December of 2017 and began radiation treatment immediately. It'd already begun to metastases so radiation had to be done in more than one area. After that came extremely expensive injections every 90 days ($9,400 just for the drug alone each time). I had the last injection January 27th of 2020. Everything was looking great when I last saw my main cancer doctor last November. Two months ago odd symptoms developed and more tests were done one month ago. The results weren't good. I have to go in for a more thorough round of tests at the end of next month including another bone scan and MRI as well as a new test specific to the cancer I have. Saying "Big Pharma" doesn't want to find a cure is absolutely ridiculous and highly offensive to all involved in the battle against cancer.

I'm elderly and have lived a very full life to this point. It's heartbreaking to be sitting in the waiting room of the cancer lab at the hospital and see young children in far worse condition than I am. They haven't even begun to live their lives and many likely won't get to. Cures for cancer aren't akin to making electrical devices last longer, they're about eradicating a highly debilitating and often fatal disease. This is very personal to me. My birthday is in three days and potentially could be my last one ever. Never equate human life with man-made devices that are trivial in the giant scope of things. I apologize for the rant to those that are also going through what I am because you already know. I'm not in a very good mood at the moment because my biggest cheerleader in this struggle died suddenly Saturday morning at 73.
My partners mother died horribly in front of my partner from bowel cancer. I am really sorry about your illness, but will not change my opinion. I really wish there was a cure for cancer, i wish someone would find it and release it for free on the internet so there's no way it could be sat on, or become only available to the rich. I stand by my opinion, there are millions of jobs depend on the cancer "cure" industry. If the cure was a simple pill or injection, they would all lose their jobs all them businesses would close, the whole industry would collapse. Same as i think the petrochemical industry has sat on stuff to keep people buying their muck for so long, i believe the same would happen with a cure. As i said how many years and so many billions, and how much closer are they to a cure? not where near imo. I understand the heartbreak and pain of cancer but i also understand how shitty and money grabbing this world is which is unfortunate but not going to change in my lifetime, maybe someday. Big business and money is more important than saving lives.

Keep well Bobby
#29
LabRat 891
There are at least four battery technologies I've ran across over the past 5 years that use cheap materials, are highly recyclable, and perform much better or similarly (in various aspects) to Li-Ion tech today. There are also at least 2 battery technologies that are immensely superior to Li-Ion, but use(d) Silver instead of Nickel. (I haven't found anything on them other than NASA and DoD grants for Satellite and Ocean Buoy development in the late 90s and mid-00s.)
There's clearly *A LOT* more to getting battery tech to market than just R&Ding a better battery that's easy and cheap to manufacture.

Precisely because this isn't revolutionary and appears compatible with existing manufacturing, I'm hoping we'll actually see this come to market.
Posted on Reply
#30
bug
LabRat 891There are at least four battery technologies I've ran across over the past 5 years that use cheap materials, are highly recyclable, and perform much better or similarly (in various aspects) to Li-Ion tech today. There are also at least 2 battery technologies that are immensely superior to Li-Ion, but use(d) Silver instead of Nickel. (I haven't found anything on them other than NASA and DoD grants for Satellite and Ocean Buoy development in the late 90s and mid-00s.)
There's clearly *A LOT* more to getting battery tech to market than just R&Ding a better battery that's easy and cheap to manufacture.

Precisely because this isn't revolutionary and appears compatible with existing manufacturing, I'm hoping we'll actually see this come to market.
Depends on how much the new polymer adds to the cost, but I otherwise agree.
Posted on Reply
#32
Chrispy_
Okay, this is actually really big news but I'm not holding my breath.

Battery tech is the future of renewable energy and sustainable transport without fossil fuels, but like fusion power, major advances like this are announced frequently and rarely are they in commercially-viable state. I'm still yet to see the magical graphene battery advancements everyone was frothing over in 2018.
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