Nyheter innen silisiumbatterier


Siden dette kan bli et spennende område for REC i nær fremtid, kan det jo være interessant å holde seg oppdatert på nyheter herfra.

Kan jo starte med LG Chem:
LG Chem invests in Enevate; silicon-dominant Li-ion battery technology

Enevate Corporation, developer of a silicon-dominant composite anode material and high energy density batteries (earlier post), announced that LG Chem has participated in Enevate’s recent funding.

Introduced in November 2017, Enevate’s HD-Energy Technology for EVs enables Lithium-ion (Li-ion) cells with up to 50% higher capacity than conventional graphite cells. The cells can be charged to 75% capacity in five minutes. They can also safely charge and discharge down to -40°C and capture more energy during regenerative braking, extending their range in cold climates.

Enevate’s HD-Energy Technology is a self-standing, silicon-dominant composite anode with more than 70% silicon. The conductive, silicon-dominant composite film anode is essentially 100% active material that can store lithium and has a high electrical conductivity.

https://www.greencarcongress.com/2018/10/20181024-enevate.html

Joda, jeg er godt kjent med hva elektrolyse er og hvordan det virker. Men jeg ser ikke riktig det du ser. Kan du ikke være vennlig å forklare hvordan dette er til fordel for denne industrien?
Flyers
25.04.2019 kl 14:48 2945

Ref ditt spørsmål : Virker snarere som du ikke vet hva elektrolyse er. Slå det opp, Johnny:)

Ser ikke helt hvordan dette er positivt for "hele elektrolyseindustrien", men har kanskje gått glipp av noe...?

Som en bekreftelse på at Sila Nano Inc benytter silangass som innsatsfaktor, kom jeg over følgende tekst fra deres utviklingsanlegg:

"The second really cool business related news is that a company called Sila Nanotechnologies is moving their battery related business to Alameda from Atlanta, Georgia. Recently they filed an application with the City of Alameda to build some sort of outdoor container to house nitrogen and to house silane which is another gas that I had to Google. Sila Nanotechnologies is looking to move their headquarters and lab space to Mariner Square.

Here’s what Sila Nanotechnologies does:
“Sila is developing a high-throughput technology for scalable synthesis of high-capacity nanostructured materials for Li-Ion EV batteries. The successful implementation of this technology will allow improvements in energy storage capacity of today’s best batteries at half the cost.""

Kilde: https://laurendo.wordpress.com/2014/07/29/batteries-are-included/

Siden de store bilprodusenter allerede posisjonerer seg med oppkjøp, lurer jeg på om ikke ting kommer til å skje lenge før TT antydet.


Flyers
20.04.2019 kl 14:22 3232

Ja, og i tillegg er dette veldig positivt for elektrolyseindustrien, Hydro og en mengde andre aktører.
grabein
20.04.2019 kl 14:14 3243

Silisiumanoder fremstilles bl.a. med silangass ja. Derfor er alt av sil-batteriproduksjon av interesse. Dette kommer til å bli stort, potensielt på mye kortere sikt enn hva folk tror. Tipper at vi om 2 år fra nå ser på et helt annet marked.
Flyers
20.04.2019 kl 13:50 3274

Takker, flott info. Ser de skal bruke silangass. Rec produserer 70% av verdens produksjon. Tipper Rec har en kunde her:) Bør vel bety noe for Rec.
Redigert 20.04.2019 kl 13:53 Du må logge inn for å svare
grabein
20.04.2019 kl 13:34 3272

Scaling up the SiNANOde production from 10 to 100 tons annually

PALO ALTO, California: OneD Material announces the issuance on March 26th of the new US Patent No. 10,243,207. The patent discloses novel industrial-scale manufacturing processes to produce SiNANOde anode material at volume and cost which are attractive to battery makers and their OEM customers.

Dr. Yimin Zhu, OneD's Chief Technology officer, is one of the three co-inventors.

For more than a decade, Dr. Zhu and his team have worked on new methods to grow silicon nanowires on graphite particles to increase the energy density of lithium ion batteries. Since 2010, OneD has produced growing quantities of SiNANOde and supplied several leading battery makers for extensive testing. More recently, this team has successfully perfected and optimized the manufacturing process to scale production of SiNANOde from today's 10 tons to over 100 tons capacity per year.

SiNANOde manufacturing process uses commercially available CVD furnaces to grow silicon nanowires directly onto the best commercially available graphite active materials using silane gas supplied already at scale to the semiconductor and solar industries. This unique combination enables the increase in SiNANOde production volumes by orders of magnitude at a very competitive cost.

In contrast to silicon oxides (SiOx) added to graphite anodes in some commercial batteries or newer silicon-graphite materials recently announced but yet not available in commercial quantities, SiNANOde anode materials provide a far superior drop-in solution to reach higher energy densities which has been already produced at tons-scale and is now ready to be produced at increasing industrial scale and attractive costs.

More details on the manufacturing process and the SiNANOde materials are available at OneD's website under the TECHNICAL SECTION.

https://www.newkerala.com/news/read/130208/scaling-up-the-sinanode-production-from-10-to-100-tons-annually.html

https://www.onedmaterial.com/technology
Redigert 20.04.2019 kl 13:37 Du må logge inn for å svare
grabein
19.04.2019 kl 19:00 3538

Håper du mener 60 kr, ettersom vi nesten helt sikkert får en 10:1 spleis ;) Men ja, spennende, og spesielt siden vi allerede nå vil begynne å se økt mengde sil i anodene. Husk at Tesla lover at den nye Roadster i 2020 får 200 kWh, dobbelt av dagens versting. Hvordan skal de klare det med dagens teknologi? Man kan ikke bare doble str på batteriet, da blir den altfor tung, og man får neppe plass i det lille, snertne formatet. Jeg tipper Tesla har en ny anode på gang, med ytterligere økt mengde silisium.

Vi får se!
grabein
19.04.2019 kl 18:59 3527

Håper du mener 60 kr, ettersom vi nesten helt sikkert får en 10:1 spleis ;) Men ja, spennende, og spesielt siden vi allerede nå vil begynne å se økt mengde sil i anodene. Husk at Tesla lover at den nye Roadster i 2020 får 200 kWh, dobbelt av dagens versting. Hvordan skal de klare det med dagens teknologi? Man kan ikke bare doble str på batteriet, da blir den altfor tung, og man får neppe plass i det lille, snertne formatet. Jeg tipper Tesla har en ny anode på gang, med ytterligere økt mengde silisium.

Vi får se!

Samt skal ha meg en audi med 2000km rekkevidde av gevinst:)

Grabein
?

At Rec blir en kommende gullgruve for aksjonærene , det begynner å bli virkeligere for hver dag som går.
Bare vent å se, tolmodighet her kommer lønne seg

Ha en fortsatt god påske
KAWAS
19.04.2019 kl 11:55 3829

Takk for interessant link. Det skjer mye og vi står helt klarr foran en aldri så liten energirevolusjon. Gleder meg til å kjøre elbil med rekkevidde 2000 km.
Kombinasjonen sol og batteri blir uslåelig.
grabein
19.04.2019 kl 11:34 3865

VANCOUVER, April 18, 2019 /CNW/ – MGX Minerals Inc. (“MGX” or the “Company”) (CSE: XMG / FKT: 1MG / OTCQB: MGXMF) reported today that its collaborative research partnership with the University of British Columbia (“UBC”) has successfully developed a novel hybrid organic-inorganic material for use in engineering silicon interfaces. These interfaces will prove critical in achieving a highly efficient, long-lasting silicon anode that will aide in the development of next generation lithium-ion batteries capable of quadrupling energy density from the current standard of 100 Wh/kg up to 400 Wh/kg for use in long-range electric vehicles and grid-scale energy storage.

https://upticknewswire.com/mgx-minerals-announces-breakthrough-in-development-of-high-energy-lithium-ion-batteries/
grabein
17.04.2019 kl 09:10 4217

Fra Q3 18:

"And there is only five companies able to deliver the quality, which is needed in the semiconductor market, and REC is one out of those companies. The new thing coming out is batteries. It has been approximately 20 companies now visiting REC in the U.S., talking about silicon into batteries. We don't know too much about, let's say, the technology and batteries. This is not our, let's say, competence. On the other hand, let's say, these companies they are talking about the batteries will become four times more efficient by using silicon instead of graphite in the anodes of the batteries.

The second thing is that already today 5,000 to 10,000 metric ton out of 400,000 metric ton is used in batteries by companies like Tesla, Samsung, Panasonic and LG, but the market could exceed within the next five years about 100,000 metric ton. And even here, in Norway, we see that there is a strong interest of using – R&D using silicon into the anodes of the batteries. The new thing is basically that both in the U.S. and in Europe, there is a very strong focus now to build a battery, let's say, business.

As you can see from the slide, China seems to be running, let's say, ahead of all others also on the battery side. They have done tremendous investments. They continue to do a lot of investments in batteries. China has basically what they call the 2025 mission. It is about renewables, it's about storage and it's about electric cars. And they do all the investments within these areas.

European car manufacturers, U.S. car manufacturers are very worried about that, let's say, when electric cars come, they don't have necessary supply of batteries and that's why if you remember – or you probably saw some days ago, EU put together a huge package to promote building battery competence in Europe and the same thing in the U.S. And when we now met with the USTR talking about what is important in terms of the trade war, batteries was really what they were focused on because they really want to keep kind of these industries, polysilicon industry, in the U.S. to support also development on the battery side.

This is not an important business to us as of today. But hopefully, within the next two to three years, this will be a very important part of our business as well. And the battery companies are particularly looking for silane and for granular because one of the important thing is that you use polysilicon, a very, very small sized polysilicon granular. That's what they are looking for."

https://www.google.no/m?q=rec+silicon+batteries+torvund&client=ms-opera-mobile&channel=new&espv=1
grabein
17.04.2019 kl 09:06 4228

Han var litt reservert sist gang, men det er likevel liten tvil her. TTs tidshorisont er for konservativ i mine øyne når han snakker om 3 år.

Tore Torvund, REC Silicon ASA - CEO & President [15]

--------------------------------------------------------------------------------

Let's say we have several companies coming to Moses Lake to discuss the availability of silane gas. It's mainly the silane gas, which seems to be of interest to them. On the other hand, it is not a developed market yet. Let's say, we have heard that some Chinese companies are using about 6% silicon at the maximum in their anode today. There is major technological issues to be resolved. But more and more people says that we can, 2, 3 years now see an opportunity that there will be 50% to 60% silicon in the anode, which will then increase the capacity of a battery by some 30%. My position today has been that I have tremendous amount of silane when you need it. So come back when we can definitely sign a contract, but we are not going to be the battery expert. We are going to supply the material they need to make these batteries.
Flyers
17.04.2019 kl 08:43 4190

Har de egentlig sagt at batteriprodusenter blir en viktig kundegruppe. På meg virker TT veldig reservert. Men for all del, jeg ønsker du har rett?
grabein
17.04.2019 kl 08:30 4214

REC er verdens største produsent av silangass, nødvendig i produksjonen av silisiumanoder. Og når REC selv sier batteriprodusenter kommer til å bli en viktig del av deres kundegruppe, så har man all grunn til å høre etter.

Ja, Sil revolusjonerer akkurat nå «batteri»/ energi lagrings teknologien,,??

https://newatlas.com/cct-silicon-energy-battery-thermal-energy-storage/59098/


Molten silicon just doesn't degrade like lithium does," says Bondarenko. "That's a chemical process, ours is simply phase-change with heat. In fact, it appears silicon even gets better at storing heat after each cycle. And if you do need to decommission a TED device, it's 100 percent recyclable. It simply doesn't create the environmental problems that lithium does."
wassa
17.04.2019 kl 06:03 4368

Er ikke bare i EV dette kommer til å eksploderer. Batterier til lagring av fornybar energi er på full fart inn over alt.

Flyers

Rec ledelsen har allerede uttalt at de har fått henvendelser fra batteri produsenter, forbruket til dette bruket kommer til å ekspandere kolossalt fremover, ( det snakkes løst om 5-12 kg sil PR EV, og flere titalls millioner biler PR år i tiden fremover, gir enorme muligheter for Rec, ?
Flyers
17.04.2019 kl 00:37 4464

Hvorfor er det sikkert at Rec kommer til å levere inn til batteri industrien? Her trengs det nærmere forklaring eller er jeg for langt ned i cognac glasset?

? NICE,,

Nå strammer strikket seg for shortsene nok en gang, st REC blir leverandør innen Batteri teknologien fremover er 100% sikkert.
Fest setebeltene, strikket ryker når som helst ?
grabein
16.04.2019 kl 19:48 4664

Breaking!

Daimler (Mercedes Benz, Chrysler) tar størsteparten av 170 millioner dollar investering i produsent av silisiumanoder (Sila Nanotechnologies)! Vi vet fra før at BMW allerede er kunde. Det skjer nå! Allerede på slutten av 2019 får vi første produksjonsbatch av batteriene fra Sila. Derfra satser man på større skala. Alle mann til silanpumpene!

"Daimler has led the latest US$170 million round of funding for anode materials firm Sila Nanotechnologies. Total backing for the California-based firm now stands at US$295 million.

Other investors in the latest round included Bessemer Venture Partners and Siemens Next27.

The company’s silicon-based anodes can replace graphite without any change to manufacturing infrastructure. It claims an average improvement of 20% dependant on the associated battery chemistry. Sila’s anodes can be used an assortment of Lithium chemistries including Nickel Manganese Cobalt (NMC), Lithium Iron Phosphate (LFP), Lithium Cobolt Oxide (LCO) and Lithium Nickel Cobalt Aluminium Oxide (NCA).

Alex Nediger, Daimler’s director of cooperation and innovation management will join the Sila board as will former GE CEO Jeff Immelt.

“Advancements in lithium-ion batteries have become increasingly limited, and we are fighting for incremental improvements,” said Immelt. “I’ve seen first-hand that this is a huge opportunity that is also incredibly hard to solve. The team at Sila Nano has not only created a breakthrough chemistry, but solved it in a way that is commercially viable at scale.”


Sila is targeting four markets and is ramping its production now with the consumer electronics its first target. It will then move onto producing for its partners in the electric vehicle space, BMW and Daimler. It lists grid storage and aviation as the other two pillars of its business.

“We’ve cracked the code on silicon thanks to eight years and 35,000 iterations developing our materials to improve battery storage capacity,” said Gene Berdichevsky, co-founder and CEO, Sila Nano. “Now we’re ready to bring this to market, and partners like Daimler and Jeff Immelt bring critical expertise and support as we enter this next phase and begin putting Sila inside the vehicles and devices people use every day.”

The competition for creating better lithium batteries is increasing. 24M, a startup spun out of the labs at MIT, recently touted gains it has made in creating a platform for manufacturing semi-solid lithium-ion battery cells using compositionally distinct catholytes and anolytes, kept apart by an ionically conductive, non-permeable separator. Designing the technology and processes so that they could be adapted for both nickel manganese cobalt (NMC) cells commonly used in EVs as well as LFP (lithium iron phosphate) more typically used for stationary storage - particularly at residential scale - 24M claimed it can reach energy densities exceeding 350Wh per kg, with plans to open a small production line by the end of this year."

https://www.energy-storage.news/news/anode-materials-firm-gets-us170-million-investment
Redigert 16.04.2019 kl 19:54 Du må logge inn for å svare
Js67
09.04.2019 kl 21:45 4756

Over the last decade, a few Silicon Valley startups have been working to solve this problem. For example, Sila Nano’s approach is to encase silicon atoms inside a nano-sized shell with lots of empty room inside. That way, the SEI is formed on the outside of the shell and the expansion of silicon atoms happens inside it without shattering the SEI after each charge-discharge cycle. The company, valued at $350 million, says its technology will power devices as soon as 2020.

Enovix, on the other hand, applies a special manufacturing technique to put a 100% silicon anode under enormous physical pressure, forcing it to absorb fewer lithium ion and thus restricting the expansion of the anode and preventing the SEI from breaking. The company has investments from Intel and Qualcomm, and it also expects to have its batteries in devices by 2020.

These compromises mean the silicon anode can’t reach its theoretical high energy density. However, both companies say their anodes perform better than a graphite anode. Third parties are currently testing both firms’ batteries.
grabein
09.04.2019 kl 15:52 4832

BioSolar Begins Production and Testing of Lithium-ion Battery Prototype Incorporating Its Performance Boosting Technology

Company will use the new high density 21700 battery format for its prototypes

SANTA CLARITA, Calif., April 09, 2019 (GLOBE NEWSWIRE) -- BioSolar, Inc. (OTCQB:BSRC) (“BioSolar” or the “Company”), a developer of breakthrough energy storage technology and materials, today announced that its technology partner has commenced production and testing of the first batch of commercial grade prototype lithium-ion cells for power tool application in the new 21700 cell format being adopted by a number of high-growth industries including power tools, consumer electronics and electric vehicles.

The 21700 cell format is one many believe can increase battery density, thus positively impacting overall power. In February, automotive manufacturer Nikola teased its new line of all electric truck models, citing in a tweet its dependence on 21700 cells. In power home technology, Milwaukee Tool announced two new cordless tool battery packs, including a high output segment that carry 21700 cells, up from the 18650 format in pre-existing series.

As disclosed in a previous announcement, BioSolar began applying its performance boosting additive technology to the emerging category of silicon anode lithium-ion battery cells. As the cell develops and hopefully demonstrates commercial viability in a power tool application, BioSolar believes its technology can also generate interest from a broader audience of battery manufacturers and end users alike.

“As we progress with the development of our commercial grade prototype batteries, it is essential for us to communicate the process to our partners, potential customers and shareholders,” said Dr. David Lee, CEO of BioSolar. “We anticipate our performance boosting technology will show enough progress in these prototypes to transition BioSolar from a technology development company into one with commercially viable technologies suitable for use in a number of high-growth industries.”

About BioSolar, Inc.

BioSolar is developing a breakthrough technology to increase the storage capacity, lower the cost and extend the life of lithium-ion batteries. A battery contains two major parts, a cathode and an anode, that function together as the positive and negative sides. BioSolar is currently developing an innovative additive that enables the use of inexpensive silicon as the anode to create next generation high capacity and high power lithium-ion batteries. Founded with the vision of developing breakthrough energy technologies, BioSolar's previous successes include the world's first UL approved bio-based backsheet for use in solar panels.

To learn more about BioSolar, please visit our website at http://www.biosolar.com.
grabein
19.03.2019 kl 08:43 2479

California Startups Reveal 'Tesla Killer' Battery Technology

Something better -- a lot better -- than the ubiquitous lithium-ion battery for electric vehicles (EVs) is expected to be revealed within the year.

One of these, a new “silicon anode battery,” boasts it can propel a Tesla Model S to a range of 645 km from the standard 540 km using the same size battery pack. Another exciting development, a new solid-state battery, promises to increase the range of the Volkswagen E-Golf to an astounding 750 km compared to the present 300 km.

That’s bad news for Tesla Inc. which is stuck with “old school” lithium-ion batteries made by Japan’s Panasonic Corporation.

Startups based in California are leading this new “charge” aimed at squeezing up to 20 percent more power from existing batteries by improving lithium-ion technology or developing new types of batteries.

...

Expected to introduce exciting new battery tech within the year are Sila Nanotechnologies, QuantumScape, Solid Power, Enovix and others. These firms, some of them already unicorns, are raising millions of dollars from venture capitalists and corporations such as Volkswagen to commercialize their breakthrough battery tech.

“It’s taken us eight years and probably 35,000 iterations of our material synthesis just to have something that’s commercially ready,” said Gene Berdichevsky, CEO of Sila Nanotechnologies.

He was once the seventh employee in startup called Tesla Inc. when this was founded in 2004 and led the development of the battery system in the Tesla Roadster.

Sila will introduce its new new “silicon anode batteries” that replace the graphite in today’s batteries with precisely engineered and minute silicon particles.

“This company had no web site and was stealth for six or seven years, because we didn’t want to say we could make something when we couldn’t,” said Berdichevsky. “But now we’re at the point where we’re going to be in millions of devices next year.”

Sila clients already include BMW and Amperex Technology, a Chinese company that supplies batteries to Apple and Samsung. BMW plans to incorporate Sila technology by 2023 to increase battery-pack capacity by up to 15 percent.

...

https://www.ibtimes.com/california-startups-reveal-tesla-killer-battery-technology-2776903

Lignende artikkel fra CNBC:
https://www.cnbc.com/2019/03/15/battery-start-ups-are-raising-millions-in-the-battle-to-crush-tesla.html


Nytt anodemateriale (MXene) blandet med silisiumpulver viser seg å være godt egnet for øke kapasiteten til Li-Ion batterier. Og enda bedre; det lar seg lett skalere opp slik at dette ikke bare passer småbatterier:

"Chuanfang Zhang, PhD, a post-doctoral researcher at Trinity and lead author of the study, also notes that the production of the MXene anodes, by slurry-casting, is easily scalable for mass production of anodes of any size, which means they could make their way into batteries that power just about any of our devices."

https://www.sciencedaily.com/releases/2019/02/190221130302.htm
grabein
26.02.2019 kl 10:22 2925

MGX Minerals Announces Phase Two Development of Silicon Based Anode for High-Energy Lithium-Ion Batteries

VANCOUVER, Feb. 26, 2019 /CNW/ - MGX Minerals Inc. ("MGX" or the "Company") reported today that its collaborative research partnership with the University of
British Columbia ("UBC") has completed a comprehensive baseline assessment of metallurgical silicon originating from each of the Company's three silicon projects in southeastern British Columbia. MGX and UBC are working together to develop next-generation Li-ion batteries capable of quadrupling energy density from current 100 Wh/kg up to 400 Wh/kg for use in long-range electric vehicles and grid storage.

With the Phase One assessment completed, Phase two of the collaborative is now underway and will focus on developing a scalable process to
upgrade metallurgical silicon originating from MGX's projects to batterygrade silicon anode. The developed silicon anode will serve as a viable replacement over the present graphite anode and enable higher-energydensity lithium-ion batteries for numerous applications, including electric vehicles, grid storage, telecommunication, wireless sensors and more.

About the Research Initiative
The objective of the MGX/UBC research consortium is to develop a lowcost and scalable method that will fabricate a silicon-based anode to improve the energy density of Li-ion batteries. The two-year research program seeks to focus on 1) fabricating nanostructured silicon using lowcost metallurgical silicon as a feedstock and 2) compositing nanostructured silicon with commercial graphite to develop a highperformance silicon anode. The initial goal of the research is to replace the
graphite anode with silicon and complete a hybrid in the short-term which will not require industry retooling. The ultimate goal is to enable nextgeneration Li-ion batteries capable of quadrupling energy density from current 100 Wh/kg up to 400 Wh/kg for use in long-range electric vehicles and grid storage.

Dr. Jian Liu, Assistant Professor in the School of Engineering at UBC Okanagan, is leading a research group focused on advanced materials for energy storage. Dr. Liu was previously the technical lead for development of surface coating materials by atomic and molecular layer deposition, and their applications in surface and interface engineering on the anode and cathode of Li-ion batteries and beyond, at Western University and Pacic Northwest National Laboratory.

MGX Silicon Projects
MGX operates three silicon projects in southeastern British Columbia- Koot, Wonah and Gibraltar. A one-ton sample of quartzite from the Company's Gibraltar project was recently shipped to the independent lab Dorfner Anzaplan ("Dorfner") in Germany for mineralogical analyses. Dorfner conducted X-ray diffraction analysis, chemical analyses through X-ray uorescence spectroscopy, grain size distribution, mineral processing analysis, automated optical sorting and thermal stability testing.
Results indicated that the material, after comminution and classication fraction, is of high initial purity (99.5 wt.-%), making the fraction chemically suitable as medium quality feedstock material for metallurgical-grade silicon production.

About MGX Minerals Inc.
MGX Minerals is a diversied Canadian resource and technology company with interests in global advanced material, energy and water assets.

Neither the Canadian Securities Exchange nor its Regulation Services Provider (as that term is dened in the policies of the Canadian Securities Exchange) accepts responsibility for the adequacy or accuracy of this release.

https://www.juniorminingnetwork.com/junior-miner-news/press-releases/28-cse/xmg/58692-mgx-minerals-announces-phase-two-development-of-silicon-based-anode-for-high-energy-lithium-ion-batteries.html
KAWAS
23.02.2019 kl 11:20 3170

Veldig spennende nyheter. Det er altså funnet en løsning på ekspansjonsproblemene. Nå gjenstår set å se om det er økonomisk lønnsomt. Hvis det er god lønnsomhet i MXene, som jeg overhode ikke forstår hva er, kan dette sette fart på saker og ting!

I mellomtiden trades og shortes det på 1/10-dels ører på Reckursen. Vanvittig....
grabein
23.02.2019 kl 08:06 3346

Expanding the Use of Silicon in Batteries, by Preventing Electrodes From Expanding
Fri, 02/22/2019 - 4:00pm
by Drexel University

The latest lithium-ion batteries on the market are likely to extend the charge-to-charge life of phones and electric cars by as much as 40 percent. This leap forward, which comes after more than a decade of incremental improvements, is happening because developers replaced the battery's graphite anode with one made from silicon. Research from Drexel University and Trinity College in Ireland now suggests that an even greater improvement could be in line if the silicon is fortified with a special type of material called MXene.

This adjustment could extend the life of Li-ion batteries as much as five times, the group recently reported in Nature Communications. It's possible because of the two-dimensional MXene material's ability to prevent the silicon anode from expanding to its breaking point during charging - a problem that's prevented its use for some time.

https://www.rdmag.com/news/2019/02/expanding-use-silicon-batteries-preventing-electrodes-expanding
grabein
20.02.2019 kl 10:19 3520

I 2017 var tommelfingerregelen at litiumion-batteriene datt til 70 prosent etter 300-500 ladesykluser, så jeg synes ikke dette ser galt ut. Selv om mye har skjedd de siste par årene, hvor Nissan nå skryter av at den nye Leaf-en holder over 90 prosent kapasitet etter 500 sykluser.

Så, ja, tåler de 3000 sykluser snakker vi definitivt revolusjon, men man trenger slettes ikke så mye for å slå dagens batterier i levetid.
økon
20.02.2019 kl 09:43 3574

Lovende, men det store problemet er at anodene ikke tåler mange nok landinger. Nå er effekten mye redusert allerede etter 300 sykler. Når de tåler 3000 snakker vi om revolusjon!
grabein
20.02.2019 kl 09:29 3610

Talga reports positive test results on its graphene silicon Li-ion battery anode project

Talga Resources has revealed new test results on the ongoing optimization of its graphene silicon Li-ion battery anode product, Talnode™- Si. According to Talga, the battery anode product returns further performance gains, now delivering ~70% more energy density than commercial graphite-only anodes.

https://www.graphene-info.com/talga-reports-positive-test-results-its-graphene-silicon-li-ion-battery-anode-project-talnode%E2%84%A2-si
grabein
18.02.2019 kl 19:30 3803

Jeg er i Frankfurt, hvor jeg akkurat snakket med en fyr fra Panasonics batteriavdeling. Han mener silikonanoder nok kan bli et viktig mellomsteg på veien men mener som mange andre at Litium-ioner på et tidspunkt må erstattes. Solid state er en god kandidat som erstatter, blant andre. Han sa Panasonic holder øye med teknologien for silisiumanoder men at de ikke er sikre på om det lar seg gjøre. Hindrene kan bli for store teknologisk sett. Hvilket forteller meg at det vil ta en stund før evt. verdens største batteriprodusent har slike anoder klare.

Det er jo likevel fullt mulig de kan kjøpe inn anoder fra tredjepart, når den tiden kommer, men jeg hadde håpet på et litt mer klart svar fra batterigiganten.

Edit:
Dette var en salgsansvarlig i Europa som snakket til pressen om konsumentbatterier. Jeg er ikke sikker på hvor dyp innsikt han har i hva som foregår bak forhenget. Men han virket å ha kunnskapen i orden, også når det gjaldt hva som foregår på utviklingssiden.
Redigert 19.02.2019 kl 08:50 Du må logge inn for å svare