25 comments

  • BaudouinVH 2 hours ago
    The article is very, very light with details. The university or research center is not named. No scientist is named. No link. Nothing that tells "look, we're telling you real, solid, serious stuff."

    Here is another article with that details : https://www.techspot.com/news/112051-japan-finds-way-recover...

    • cicko 27 minutes ago
      you seem to have missed the domain on which the article is posted
    • neuroelectron 1 hour ago
      Being able to quickly skim articles is definitely a skill that has paid in spades since the advent of AI slop.
  • cyphar 4 hours ago
    It really should not be surprising that we can get very high recovery percentages from batteries -- we do not mine elemental lithium, so the processes we use for extraction are already designed to extract lithium from fairly low-purity sources. In contrast, lithium batteries are an incredibly high-purity source of lithium. The main question is when it will become cost-effective to create recycling pipelines.

    Lead acid batteries had a similar trajectory and modern lead acid batteries are effectively 100% recycled.

    • legitster 1 hour ago
      This is probably somewhat true, but also I suspect there might be an order of magnitude difference from extracting trace lithium from inert rock vs collecting it as a salt from amongst a medley of very refined metals.

      Case in point - lead acid batteries are not a fair comparison. A lead acid battery is so robust you can separate the cathodes and anodes with your (gloved) hands. Getting the elements out of a lead battery is like picking pieces of pepperoni off of a pizza. Whereas taking lithium out of a lithium cell is like pulling only a certain protein out of a roll of bologna. And the protein catches fire in contact with air.

    • leonidasrup 3 hours ago
      U.S. lead acid baterries recycling has been outsourced.

      " As the United States tightened regulations on lead processing to protect Americans over the past three decades, finding domestic lead became a challenge. So the auto industry looked overseas to supplement its supply. In doing so, car and battery manufacturers pushed the health consequences of lead recycling onto countries where enforcement is lax, testing is rare and workers are desperate for jobs. "

      https://www.nytimes.com/2023/03/20/world/americas/car-batter...

      https://www.nytimes.com/interactive/2025/11/18/world/africa/...

      • dv_dt 2 hours ago
        Don't get on such a high horse about US regulatory effectiveness.

        This is recently (2010) in California even: https://en.wikipedia.org/wiki/Exide_lead_contamination

        Still, the overall benefit might be seen as positive for lithium from shifting widespread air pollution from combustion engines to more localized pollution. Though obviously the world needs to work on better processes for the local pollutants.

        • dtech 1 hour ago
          The "advantage" is that in contrast to heavy metals like lead lithium is a lot less toxic as far as we know. Not 0, but not in the same league.
      • t_mahmood 2 hours ago
        Yeah, too many lead batteries here, and there are a lot of battery recycle factories. It's been a health and environment concern for a while. And these batteries allowed to put motors on rickshaw, we call them "Tesla", And they are also another hazard, and menace for the price of faster transportation.
    • JumpCrisscross 3 hours ago
      > It really should not be surprising that we can get very high recovery percentages from batteries -- we do not mine elemental lithium

      Plenty of substances we don't mine elementally are not worth recycling. The main advantage with lithium is it tends to go into large volumes of standardised chemistries.

    • tpm 24 minutes ago
      I think the issues with recycling lithium from electrolyte containing lithium hexafluorophosphate in solvents is more the hexafluorophosphate part; it's highly reactive, hygroscopic and releases (toxic, corrosive) hydrogen fluoride upon contact with water. So purely from economic perspective it's possibly not worth it unless we are very lithium-constrained. Of course it should be done anyway as there will be a lot of used batteries in near future.

      The article doesn't really give us the details which is a pity.

    • vasco 2 hours ago
      If you've ever seen a video of Nigerians "recycling" lead batteries you'd be hard pressed to call it that. Katana in one hand, bucket on the floor, no shoes, let's go.
    • protocolture 2 hours ago
      >Lead acid batteries had a similar trajectory and modern lead acid batteries are effectively 100% recycled.

      Getting rid of all that waste material from Galena was maybe a different incentive structure but yeah.

  • jillesvangurp 3 hours ago
    The article seems to be very unspecific about what it is this company does that is so different. It also steps over the fact that there are already quite a few companies active in the US, EU, and China that are recycling batteries. Nor is the cited percentage that remarkable. That's ballpark what competitors are achieving as well. Probably a bit more. 10% lithium is a lot of lithium to not recover. Most natural deposits of lithium have very low concentrations of it.

    The main thing actually holding back the recycling industry is the lack of batteries that need recycling, not the lack of technology needed to recycle them. Most of the batteries produced in the last ten years are still being used. And quite a few might head for a second life in storage for another decade or so. It's probably going to be another decade before recycling hits a scale where it becomes a significant and lucrative source of valuable raw materials.

    And as others mentioned, it's not just about recycling the lithium in batteries. It's not like cobalt, nickel, copper, graphite, etc. end up on the trash heap.

  • googletop 3 hours ago
    Mercedes opened a battery recycling plant in 2024, claiming a recycling rate of 96%, of the whole battery. So not sure how much of a breakthrough this japanese tech is https://group.mercedes-benz.com/company/news/recycling-facto...
  • waterproof 5 hours ago
    according to https://x.com/Mith_/status/2041911606213537971

    > The industry standard for the recovery of lithium (remember there is a difference between recovery and extraction) is 90%, with some platforms now achieving 95%+ like those that use carbonation.

  • jwr 34 minutes ago
    Incidentally, companies developing technologies for reusing EV batteries in grid storage applications (where even <80% capacity EV batteries are just fine for many years), have trouble getting enough EV batteries, because they last much longer than we were made to believe.
  • akssri 2 hours ago
    Some geopolitical context:

    https://en.wikipedia.org/wiki/2010_Senkaku_boat_collision_in...

    https://www.rusi.org/explore-our-research/publications/comme...

    Japan was one of the first countries to be hit with rare-earth export-restrictions by China - going back to 2010. It seems that a lot of policy came out from this unpleasant shock, incl. the decision by Toyota to focus on developing FCEVs which would be less dependent on Chinese supply-chains. Ironically, the resulting vacuum may have actually led to Chinese/American companies gaining market share in the BEV space.

    Still, given how things are going, FCEVs (and Japan with it) might actually end-up having the last laugh.

    • topato 1 hour ago
      I’ve always been amazed at how differently the PHEV, HFC, and standard EV market ended up (well, until recently) playing out, in Japan Vs The Rest of the World. I always found the hydrogen stations here in California to be an interesting anomaly — but once you learn about the infrastructure and vehicles forced on the Japanese by gov/corp alliance, you really get a fascinating ‘alternate reality/history’ localized entirely on the island of Japan lol
    • dudisubekti 1 hour ago
      > last laugh

      Can I ask your reasoning?

      Currently hydrogen is just oil with extra steps. Efficient electrolysis either needs ultra-rare materials like iridium and platinum, or exotic ceramics for continuous high-temperature electrolysis.

      I personally can't see how this arrangement can supplant oil and batteries.

    • legitster 1 hour ago
      There's a reason Japan could be burdened with the largest modern nuclear disaster and then choose to double down on nuclear capacity. It's an island nation with no domestic energy reserves - completely dependent on energy markets.

      FCEVs make no sense if you have plenty of fossil fuel or access to cheap lithium batteries. But if you see hydrogen as a less resource-bottlenecked way to store energy, it starts to make sense.

    • tonyedgecombe 22 minutes ago
      If anybody else wondered FCEV = Fuel Cell Electric Vehicle.
  • zaik 5 hours ago
    Can this be replaced with the original NHK World article?
    • iwassayinbourns 3 hours ago
      I can’t seem to find it on NHK World at all apart from in a video from April? Is this old news? The linked article is also very sensationalized.

      Edit: linked article is also from April.

  • simondotau 4 hours ago
    This article is poor, because lithium is just one part of the value contained within EV batteries. Far more valuable is any nickel, cobalt and graphite. Equally valuable is any copper and aluminium. Unless you're effectively recycling a significant number of the major materials, it's not enough.

    Furthermore, it's not a remarkable achievement. By contrast to this headline, Redwood Materials claims "Redwood’s technology can recover, on average, more than 95% of materials like nickel, cobalt, copper, aluminum, lithium and graphite in a lithium-ion battery."[0]

    [0] https://www.redwoodmaterials.com/recycle-with-us/

    • tpm 13 minutes ago
      > Far more valuable is any nickel, cobalt and graphite. Equally valuable is any copper and aluminium.

      All of these metals are already almost fully recycled (not sure about graphite). Lithium is the toughest to recycle and it's not solved yet, so it's right to focus on that, because there will be a lot of lithium electrolyte to dispose in the near future.

    • mbgerring 1 hour ago
      The battery supply chain is moving away from NMC because of the myriad problems with nickel and cobalt and has been for a long time.
      • simondotau 18 minutes ago
        Yes, LFP is a better chemistry for various reasons including cost. Thankfully this means that nickel and cobalt are not needed for EVs adoption to continue scaling.

        For now, NMC remains superior for some high performance applications, as well as for high-end laptops and phones. Yes, there are "myriad" problems with nickel and cobalt. These problems will diminish as scale makes recycling economically competitive to virgin material mining.

        At some point the number of EV batteries being disposed will approach equilibrium to the number of new vehicle batteries manufactured. When this happens the amount of virgin nickel and cobalt needed will also approach zero.

  • fzeroff 5 hours ago
    What a poorly written article
    • realxrobau 4 hours ago
      Did you expect more from a website called Supercar Blondie?
    • donjapan22 5 hours ago
      While I’m very excited for the new recycling breakthrough, I felt the same. It was… off
  • ggm 4 hours ago
    The key point will be the energy inputs, and catalyst or other process input losses. Not the % recovery, its more recovery at an economically viable cost

    Many processes could recover the inputs. Some are tremendously polluting. Cheap methods to recover lead from older lead-acid car batteries would be an example, or the way scavengers burn plastic insulation of recovered copper wiring.

    TL;DR exernalities and economics and pollution drive recycling issues, not % recovery at this point. We know how to recover a lot of the inputs. Knowing how to industrialise and scale it up is what counts.

    John McCarthy (of LISP fame) was an (in)famous curmudgeon on USENET, frequently used to say future generations will thank us for making giant collections in the ground of highly valuable recoverable industrial inputs, what we call "rubbish dumps" -He was only partially less wrong, but had a point to make about the cost of inputs to industry vs raw mining costs. If we do come up with a process to strip mine rubbish dumps and send feedstocks in the appropriate directions there's a lot there. Complex plastics, Metals, Organics, Acids, Methane Gas, you-name-it. We already collect and harvest the methane to drive other dump works, the idea of mining the materials isn't "wrong" as much as insufficiently economic right now against raw material sources.

  • justnoice 3 hours ago
    The 90% recovery rate is not groundbreaking by itself. The real value is lower contamination and emissions—but it still needs to prove cost-effective at industrial scale.
  • jmcgough 4 hours ago
    > This new technique doesn’t just recycle materials; it recovers most of them at an unbelievable rate.

    I'm so tired of reading articles written by LLM. There are several sites that just ingest material (like studies) and crap out low-effort LLM articles.

    • dodos 3 hours ago
      I used to enjoy watching smaller youtubers, but everytime I've given one a chance lately it has been unbearably clear that it was written by an llm. Supposedly people have ingested so much llm writing that they've naturally started writing in a similar style.
  • runtime_lens 1 hour ago
    The technical challenge has never been recovering materials. It's recovering them cheaply enough that recycling beats mining. If this process scales economically, it could end up being more important than another small improvement in battery chemistry.
  • hungryhobo 1 hour ago
    worth noting this isn't ground breaking or anything, the status quo for lithium recovery from battery recycling in many countries is already > 90%
  • dburkland 2 hours ago
    Redwood Materials already recovers 95% so why is this news?
  • feverzsj 3 hours ago
    What about the cost? In China, most used batteries are just burned and buried, so the recycling cost is very low.
  • stevefan1999 3 hours ago
    So long or short Lithium?
  • progx 2 hours ago
    Costs?
  • trhway 1 hour ago
    lithium is $22/kg, 100KWh battery is 10kg lithium, i.e. the question is can you do it for $200?
    • eecc 1 hour ago
      There are other forces besides market prices... regulatory compliance comes to mind..
      • imtringued 1 hour ago
        Or the fact that China is the primary source of lithium and if Chinese car brands start exporting their cars worldwide, there is no reason for them give the raw resources to western car manufacturers, forcing them to buy the whole battery pack from China.
        • defrost 1 hour ago
          Fact? <cough>

          Australia will sell the raw resource ( hard-rock spodumene ) to anyone that wants a X-year contract - it's on them to process the concentrate (although we are currently building out spodumene processing).

            Australia has one of the biggest lithium reserves, and is the biggest producer of lithium by weight, with most of its production coming from mines in Western Australia.
          
          ~ https://en.wikipedia.org/wiki/Lithium_mining_in_Australia

          There's also Chile:

            Lithium mining in Chile is the second largest in the world in terms of extraction after it was surpassed by Australia in 2012. Chile, like Argentina and Bolivia, is located within the Lithium Triangle, an area of South America that houses the largest known reserves of lithium on the planet. 
          
          ~ https://en.wikipedia.org/wiki/Lithium_mining_in_Chile

          It might pay to brush up on mineral resources, processing, and global trade patterns before over confidently launching into faux-facts.

  • broccolover 1 hour ago
    My guy just called human rights abuses (lithium mining) ‘geopolitically complicated’
  • bamboozled 5 hours ago
    “Japan”, as in the whole country developed this tech ?
  • cosqtanq 45 minutes ago
    [dead]
  • yanhangyhy 5 hours ago
    why bother? japan hate EV
    • mc3301 5 hours ago
      I used to follow it closely and be in the industry, but it still seems like Japan is gonna be the last "mostly ICE cars" of the developed countries.

      Which is a shame, because it has a perfect combination of short-range needs (I mean, look at kei-cars), tons of wonderful places to hang out while charging (toll-way rest areas are so good), rare sub-freezing temperatures in most of the country, mandatory vehicle inspections (which could collect great safety data as well as preventative maintenance), general love of new cars and brand loyalty, lack of political or individual divide of "big gas trucks are manly", mobile-power-station earthquake preparedness (a nice bonus), generally cooperative nation-wide infrastructure...

      I guess we just have to hope the main automakers can hold on long enough for solid-state batteries and move faster than a snail's pace when it does.

      • xbmcuser 3 hours ago
        Why cars though I think people are still stuck with the cars mindset. But with electric we can get smaller ebikes/pods for individuals instead of cars
        • adrianN 1 hour ago
          We could have smaller transportation with combustion engines too, but the margins are lower and they cover fewer use cases, so marketing larger vehicles works really well.
      • cammikebrown 5 hours ago
        If you live in Tokyo or Osaka you really shouldn’t own a car
        • mc3301 3 hours ago
          If you live in New York City or San Francisco, you really shouldn't own a car.
        • klempner 3 hours ago
          And one of the points that's a little more obvious living here: Japan is a remarkably car centric culture. Not quite to the extent of America, but in much of the country you really do need a car.

          If anything the main exceptions to that are exactly the places tourists are most likely to go.

          • happosai 1 hour ago
            I disagree, I lived a year in a small town near Osaka far from any tourist attractions and never did I wish I had a car. Public transport was ubiquitous and walking infrastructure excellent. Lots of people on bikes. Roads were tiny so cars on them are tiny and driving slowly, making it feel safe to share the roads with them.

            Maybe the most clear indication that Japan isn't a car centric culture was the complete lack of FREE parking space.

            • klempner 3 minutes ago
              So, yes, the extreme pedestrian hostility that is sometimes normal in the US isn't around, and there's more likely to be a viable transit system. That's especially the case if you're in the outskirts of a a major metropolitan area where there are going to be commuters into the core transit network.

              Still, if I hop on an express train for an hour away from central Tokyo, every house has a car park and most significant stores have dedicated parking spaces, and I get a vibe of "suburbia with narrower streets". Heck, I get some of that even as close as Kawasaki or southern Tokyo once you're away from major train stations.

            • tonyedgecombe 14 minutes ago
              Japan has 670 cars per 1,000 people, the US has 779. Not a huge gap.
        • zdragnar 4 hours ago
          What about the parent comment implied Tokyo or Osaka residence?
        • cyberax 4 hours ago
          Hence nobody should live in Tokyo and Osaka.
      • tyre 4 hours ago
        In your opinion/experience, why is it that they aren't switching?
        • numpad0 2 hours ago
          Issues with home charging comes to mind, but I suspect it might have to do with gas station experience in Japan not being so miserable.

          Phrases that are equivalent to "full tank every morning with no need for drives to gas pumps" basically don't appear on Japanese Internet. I just googled a bit for Model 3 user reviews in Japanese, and most mentioned items seem to be futuristic experience, various minor QoL and reliability issues like sensors and actuator issues, and disappointing chassis dynamics such as torsional rigidity and suspension designs. Few mention home charging and none as a positive. Fewer mention the CEO as a factor, whose eccentricity is still not widely reported in Japan - Trump/Musk derangement is not fun to watch and media tend to sanewash or simply skip over those.

          Though, I think Tesla is also not doing that bad in Japan? I see pre-Highlander M3 and occasional MY Juniper on the road, about as often as Porsche(all models). It's slightly more common than Nissan Sakura, and definitely more common than Ferrari and BYD cars(all models).

        • mc3301 3 hours ago
          Probably a mix between oil-ties and the fact that decisions in Japan are made slowly.

          Edit: I also think there's a fear of this: wide acceptance of EVs open the door to BYD (or similar) huge takeover of the car market.

        • chubs 4 hours ago
          I have a theory: Japanese car's have excellent reliability, their interiors and design are lacking. If every car in the world is an EV, which due to their relative simplicity tend to be reliable, what remaining unique selling points does eg a toyota have?
          • NegativeLatency 2 hours ago
            I'd still prefer a more reliable EV to a less reliable one. Not too many good options for a EV minivan in the US (I'll never buy a Chrysler product, and I don't really want a VW).
          • protocolture 2 hours ago
            I dunno I quite like hondas interiors.

            Toyota seem to be spartan intentionally.

            GWM has them both outflanked they just push comfortable interior as its easier than catching up on any of the other engineering.

            Teslas just feel like Jony Ive reinvented the car interior from an artistic design perspective with zero reference to the comfort of the passenger.

      • cyberax 4 hours ago
        Solid-state batteries are facing production hell now, with lots of issues cropping up when tested at large-scale in real devices.

        So they are not expected in meaningful quantities until the early 2030-s.

        And the LFP chemistry has now advanced so much that solid-state batteries might not even matter anymore, except for some niche uses like aviation/drones.

      • inatreecrown2 4 hours ago
        Isn't the reason they are so slow to adapt them that they have not enough electricity?
    • chvid 4 hours ago
      It is curious - you would think they would love it? But they don't - is it simply the case of the Chinese beating them - stubbornness and pride? Or is there something more going on?

      Toyota was seemingly decades ahead at one point with their hybrid cars; but now they have resigned to a defensive position compared to Tesla, Chinese automakers, even the European ones.

      • BLKNSLVR 4 hours ago
        Toyota's first Prius (hybrid) came out in 1997 and Nissan's first Leaf (full electric) in 2010. Both Japanese, both ahead of the curve, now way behind it.

        It is an interesting situation.

        Anecdote: I have a 2014 Leaf, purchased a couple of years ago as the first foray into EVs. It's a great little car, perfect for the daily short trips for which we bought it. Use-case matters!

      • yanhangyhy 4 hours ago
        > you would think they would love it?

        no. i just found it funny.

        > Or is there something more going on?

        I remember BYD actually had to design models specifically tailored to the Japanese market (k-car)—their preferences are honestly so bizarre. I think a lot of this comes down to their national character. Once external momentum fades—like the industrial transfers from the US—they seem to lose the drive for technological innovation. They just cling to whatever they already have and refuse to adapt to global shifts.People in Japan are still using Yahoo and fax machines(not to mention their own bizarrely proprietary text editors,Hidemaru/SAKURA editor, to compare, in china, it's also vscode).

        Toyota is still digging its heels in on gas-powered cars, even though the fact that Tesla used Japanese batteries in its early days proves Japan was once ahead of the curve.but they always seem to retreat right back into their comfort zone after a brief flash of brilliance, watching the rest of the world race ahead while they continue living in the past.

        • hnav 4 hours ago
          That's probably a good thing, the world needs appliance-like cars for markets where EV charging isn't there yet.

          Meanwhile Toyota is #1, moving millions of units, something like half of them are electrified in most markets. A 2026 Camry, for $30k, gives the buyer a low-TCO, value retaining, 50mpg, 230hp appliance of a car. That's a rarity.

        • protocolture 2 hours ago
          >They just cling to whatever they already have and refuse to adapt to global shifts.People in Japan are still using Yahoo and fax machines(not to mention their own bizarrely proprietary text editors,Hidemaru/SAKURA editor, to compare, in china, it's also vscode).

          James May suggests in his doco "The Peoples Car" that the US auto market was like this when Japan was recovering from WW2, giving them the edge. It wouldnt surprise me if after a few years of success that they also stagnate.

    • jazzyjackson 5 hours ago
      Japan wants domestic industry and specializes in things other than battery production
      • nextaccountic 12 minutes ago
        On another comment in this thread https://news.ycombinator.com/item?id=48902162 it is said

        > Toyota is still digging its heels in on gas-powered cars, even though the fact that Tesla used Japanese batteries in its early days proves Japan was once ahead of the curve.but they always seem to retreat right back into their comfort zone after a brief flash of brilliance, watching the rest of the world race ahead while they continue living in the past.

        Did Japan get behind on battery tech? Couldn't them make a priority to get an edge there too?

    • jeffbee 4 hours ago
      Every Tesla made in America contains 500 kilos of Japan's finest batteries. Honda may hate the EV but Panasonic does not.
      • rootusrootus 3 hours ago
        > Japan's finest batteries

        Aren’t all Teslas made in the US supplied with American made batteries? In partnership with Panasonic, for the Model 3, but still a Tesla factory in Nevada. And I think 4680s are all Tesla made, correct?

        • jeffbee 3 hours ago
          No, they are all 100% made by Panasonic, with Panasonic technology, in buildings that Panasonic master-leases from Tesla. The only thing Tesla has contributed is the shell and the sign outside. Panasonic developed the 4680 form factor at Tesla's request, by the way that program has been a major failure.
          • simondotau 1 hour ago
            Much of that is false or inaccurate.

            “Master-leases” is a factually incorrect claim. Tesla owns the entire Nevada site and all of the buildings. Panasonic is a tenant of Tesla, leasing some sections of floor space to operate their 2170 cell production lines, manufactured to Tesla's specification. This arrangement was formed before Tesla had meaningful battery cell manufacturing expertise of its own.

            In the same building cluster, Tesla does in-house battery module production, battery pack production, Powerwall manufacturing, Megapack manufacturing, electric motor manufacturing, drive units, and other powertrain components.

            Panasonic was not involved in the design of Tesla's 4680 cell format. Along with this new form factor, Tesla gambled with various novel manufacturing processes, which resulted in many delays. Except for the delays, the Tesla 4680 production ramp has not been a “major failure”. It's producing a large volume of cells going into real customer cars, in the order of tens of millions per annum, and in that respect it has been successful. It is not yet clear whether the various manufacturing innovations (e.g. dry process) will be as transformative as hoped.

            Separately to Tesla's efforts, and in response to Tesla's plans, Panasonic also developed its own manufacturing process to produce 4680 cells with the aim of being a supplier to Tesla.

          • JumpCrisscross 3 hours ago
            > No, they are all 100% made by Panasonic, with Panasonic technology, in buildings that Panasonic master-leases from Tesla

            Gigafactory Nevada is jointly operated by Tesla and Panasonic [1]. That's in America. (No clue on the master lease bit. Would be curious for your source.)

            [1] https://www.reuters.com/business/autos-transportation/panaso...

            • mc3301 3 hours ago
              Fun, somewhat related, fact. For a long time (not sure about now), the high-voltage connectors in Tesla were made by (but not labeled) Yazaki. Made in Japan.

              But the QC tests to Yazaki's deisred level didn't exist yet, and Tesla did their own tests. And Tesla was maximizing it's "Made in the US" stance, which either goes by weight or components.

              So Yazaki was secretly making unlabeled high-voltage connectors in Japan, selling them to Tesla, who could then test them themselves and claim falsely the source of production.

  • nkmnz 3 hours ago
    Scientists found a way to extract up to 90% of oxygen from air! They call it “breathing”.
    • JumpCrisscross 3 hours ago
      > Scientists found a way to extract up to 90% of oxygen from air! They call it “breathing”

      No, they don't and no, they wouldn't. "Inhaled air [at sea level] contains 21% O2 while exhaled breath contains approximately 16% O2 and 5% CO2" [1]. 24% recovery.

      [1] https://pmc.ncbi.nlm.nih.gov/articles/PMC8672270/