Is the "hit" of aluminum batteries to subvert the industry pattern? Proof is coming
"It will revolutionize electric vehicles and energy storage." This is the slogan on the homepage of the Delaware-based company's website.
No precious metals such as cobalt and nickel are used, there is no dendrite trouble, no thermal runaway, the battery life is 1200 kilometers, and the service life for automobiles is as high as 15 years. This is the enhanced aluminum-ion battery (EnhancedAlteredAluminumIon, hereinafter referred to as "EaI") recently announced by Saturnose, a "new cutting edge in the battery industry" that far exceeds lithium-ion batteries on paper.
With the power of new energy vehicles, lithium-ion batteries will be in the limelight in 2021. At the end of the year, aluminum-ion batteries were suddenly born. The indicators on paper were excellent, and they "killed" lithium-ion batteries in terms of battery life, safety, and cycle times. Not only that, but aluminum-ion batteries are reportedly even planned to be commercialized in 2022, slowly replacing less cost-effective lithium-ion batteries.
Are lithium-ion batteries about to fall from the "throne"? Are aluminum-ion batteries "on paper" or revolutionary technology? "Daily Economic News" reporters launched an investigation.
Hvor hellig er Saturnose som dukket opp fra ingensteds
For a long time, Tesla, CATL, BYD and other industry leaders have been leading the progress of the battery industry, such as CATL's CTP technology and sodium-ion battery, BYD blade battery and Tesla's recently launched 4680 battery.
The EaI paper data presented by Saturnose this time is perfect. But most people in the battery industry may not know about Saturnose. Saturnose's website shows it is based in Delaware, and Forbes' report describes it as an Asian company, a group of Indian researchers backed by Saudi Arabian capital.
According to reports, Saturnose's EaI battery was initially funded by two rounds of seed funding from Saudi Arabia's DanaVentureFund and has been in "stealth development" for the past five years. Commercialization of the technology is also supported by the Indian government, with plans to build a technology center at the Indian Institute of Technology, Delhi, and plans to collaborate with THMFraunhofer in Germany.
In addition, other channels rarely have Saturnose related reports. The "Daily Economic News" reporter learned through the wisdom bud global patent library that Saturnose does not have a patent related to aluminum ion batteries. By searching for the keyword "aluminum-ion battery", it was found that the company that applied for more patents for aluminum-ion batteries in the United States was a company named Everon24, Inc., with a total of 16 patent applications.
Interestingly, the reporter further inquired about Everon24 related information, but has not been able to find the company's official website. In the end, I found information about Everon24 on the official website of the SEC (US Securities Regulatory Commission). Everon24 was established in Massachusetts in 2015, has a branch in Delaware, and the company type is a foreign company (ie, non-US capital).
The reporter also learned from the Pitchbook website that the patents held by Everon24 are mainly related to aluminum-ion batteries, including the "rechargeable aluminum-ion battery" first applied for on October 11, 2016, and a number of water-based aluminum batteries applied for in March 2019. Ion battery patent.
Recently, the "rechargeable aluminum-ion battery" held by Everon24 has been authorized in my country again. According to the Patent Star website, the patent application date is October 11, 2016, and the grant notification date is November 2, 2021. In addition to my country and the United States, the patent has also been registered in Europe and South Korea. It can be said that the patent is almost protected in important battery production areas in the world. It can be seen that the "rechargeable aluminum-ion battery" is the earliest patent application and its core patent.
One of the inventors of the "rechargeable aluminum-ion battery" is Rahul Mukherjee (Rahul Mukherjee). According to the Pitchbook website, one of the co-founders of Everon24 is RahulMukherjeePh.D (Dr. Rahul Mukherjee) . The reporter checked on LinkedIn and found that Rahul Mukherjee is basically Indian and Indian.
Comparing Saturnose's official website, it has several similarities with Everon24. The branch of Everon24 is in Delaware, and Saturnose is also in Delaware; the core patent of Everon24 is "rechargeable aluminum-ion battery", and the aluminum-ion battery disclosed by Saturnose is also rechargeable; the core technicians of Everon24 may be Indians, Of Indian origin, Saturnose also has a deep Indian background.
Perfekte aluminium-ionbatteridata
It can be seen that both Saturnose and Everon24 are little-known small companies in the battery industry. The reason why they have a huge impact on the industry is that the data published on Saturnose's official website is too attractive, and it perfectly fills the existence of lithium-ion batteries. Many flaws.
Litium-ion-batterier er de mest kritiserte for batterilevetiden, selv om et stort antall nye energikjøretøyer kan vare opptil 500 kilometer og 600 kilometer. Men når vinteren kommer, reduseres rekkevidden kraftig. Spesielt litiumjernfosfatbatteriet, som har blitt populært i år, er spesielt svekket om vinteren.
Men ifølge dataene utgitt av Saturnose, er problemet med batterilevetid ikke verdt å nevne i det hele tatt. For tiden er litium-ionbatteriet med høyest energitetthet det høy-nikkel-ternære litium-ionbatteriet. Nylig avslørte Guoxuan Hi-Tech at dets høye-nikkel ternære litium-ionbatteri har en enkelt energitetthet på 302Wh/kg, og har oppnådd masseproduksjon. Når det gjelder den ytterligere forbedringen av batteriets energitetthet etter høy-ternær nikkel, er industrien generelt optimistisk med hensyn til solid-batterier. I januar 2021 annonserte NIO et solid{10}state-batteri med en energitetthet på opptil 360Wh/kg. Weilai har imidlertid ikke avslørt sin leverandør av solid-batterier, og det er fortsatt kontroversielt om solid{13}}batteriet kan masseproduseres- som planlagt.
Energitettheten til aluminium-ionebatteriet avslørt av Saturnose overstiger ikke bare den nåværende relativt modne høy-nikkel-ternære, men overskrider også det umodne litium-ionfaststoffet{{3 }}oppgi batteri. Den nåværende energitettheten til EaI-batterier er 550-750wh/kg, og fremtidens veikart er 1800wh/kg.
I henhold til den nedre grensen for energitetthet er EaI-batteriet 1,53 ganger det for NIO solid-batteriet og 1,82 ganger det for Guoxuan Hi-Tech high-nikkel ternært . I henhold til den øvre grensen for energitetthet er den 2,08 ganger og 2,48 ganger høyere enn for NIO solid{11}}batteri og Guoxuan høyteknologisk-ternært nikkel.
Kilde: Saturnose
En annen stor ulempe med litium-ion-batterier er sikkerheten. Den termiske ustabiliteten til litium-ionbatterier er en viktig årsak til brann og forbrenning.
Saturnose pointed out the disadvantages of lithium-ion batteries on the official website, saying: "Safety is the biggest problem in all lithium-ion batteries. Most fires and explosions of lithium-ion batteries are caused by short circuits. When the separator fails and causes the positive and negative electrodes On contact, the battery starts to overshoot and ignites with chemicals in the electrolyte."
Saturnose believes that the traditional 18650 lithium-ion battery uses a flammable electrolyte, while the EaI battery uses an all-solid electrolyte. Accordingly, Saturnose said: "Compared to all lithium-ion batteries in the world today, our all-solid-state aluminum battery is: the safest, lighter and more heat-resistant."
In addition, Saturnose also mentioned that lithium-ion batteries have limitations in the choice of anode materials, cycle times, and dependence on expensive metals. For example, ternary lithium-ion batteries use cobalt and nickel. The EaI battery has 30,000 cycles and claims to be cheaper. "(Aluminum-ion) batteries cost 50 percent less per kilowatt than lithium-ion batteries currently cost," Saturnose said.
Hva synes du om litium-ionbatterikraner?
Lavere kostnad, sterkere batterilevetid, tryggere, lengre levetid, finnes det virkelig et perfekt batteri? Kan dataene gitt av Saturnose på sin offisielle nettside virkelig realiseres? Har industrilederne tekniske reserver?
On December 8, reporters from "Daily Economic News" contacted industry leaders such as Tesla, CATL, and BYD. Tesla did not comment on whether it has accumulated technology related to aluminum-ion batteries. The staff of CATL said: "We have a layout of valuable technologies." The staff of BYD's board secretary office said that they did not pay attention to technical issues. , should call Investor Relations. The reporter immediately called the investor relations phone, but it has not been connected.
For domestic battery leaders, are aluminum-ion batteries really valuable? Search the keyword "aluminum ion battery" through the global patent database of Smart Buds, and the top patent applications are Everon24, Beijing University of Science and Technology, Hangzhou Gaoene Technology Co., Ltd., Beijing Institute of Technology, Zhejiang University, Beijing Jinlu Energy Technology Co., Ltd. , Shenzhen Bo Leida New Energy Technology Co., Ltd., etc., the number of patent applications is 16, 14, 12, 10, 6, 6 and 5 respectively.
The reporter noticed that the company with a large number of domestic patent applications is Gaoene Technology. On December 8, "Daily Economic News" called Gaoene Technology, and its staff said: "We have some technology accumulation now, but it has not been industrialized. If you want to know more, you can contact colleagues in research and development. "
Subsequently, the above-mentioned staff sent a public account article "Professor Gao Chao's team of Zhejiang University: Low-cost expanded graphite cathode to improve the rate performance of aluminum-ion batteries" to reporters through the social APP. This article was published in September 2021. The article said, "Aluminum-ion batteries have the advantages of high negative electrode capacity, good safety, and abundant resources, and have very good application prospects in the fields of large-scale energy storage and high-power energy supply in the future. Carbon materials (graphene, graphite) with a similar structure are used as anodes for aluminum ion batteries, which have high output voltage, excellent fast charge and cycle stability. However, there is still a lot of room for improvement in the capacity of graphene-based cathodes for aluminum ion batteries. Further in-depth discussion of the energy storage mechanism of carbon material cathodes is beneficial to the rational design of aluminum-ion battery cathodes."
Qixinbao-informasjon viser at Gaoene Technology er heleid- av Changxing Deene Technology Co., Ltd., og hovedaksjonæren i Deene Technology er Gaochao, med en eierandel på 52,69 prosent.
Gjennom patentstjernesøket ble det funnet at Gaoene Technology har så mange som 124 patenter, hvorav bare 1 er relatert til aluminium-ionbatterier. Faktisk har Gaoene Technology søkt om 8 patenter relatert til aluminiumioner, men 7 prosjekter var i en tilstand av fiasko før.
It is worth mentioning that Gaoene Technology not only applies for patents related to aluminum ion batteries, but also holds patents including "a solid electrolyte for zinc ion batteries", "a graphene-iron oxide film for lithium ion batteries and its preparation method". and applications". It can be seen that Gaoene Technology is not specialized in aluminum-ion batteries.
Siden den gang har reporteren ringt Shenzhen Bo Leida New Energy Technology Co., Ltd. og mange andre selskaper med aluminium-ionbatteripatenter, men disse selskapene klarte enten ikke å koble seg til eller nektet å la seg intervjue. I tillegg til selskapet har journalister også etter hvert ringt relevante forskningsinstitusjoner og forskere som er involvert i dette feltet, for eksempel Aluminium-ion Battery RD Center ved Pearl River Delta Research Institute ved Tsinghua University, osv., men de har ikke fått svar.
Dawn dukker opp igjen eller en annen hype?
Faktisk så tidlig som i april 2017 publiserte en forskningsgruppe ledet av professor Dai Hongjie fra Stanford University i USA en artikkel om aluminiumsbatterier. Det er rapportert at dette aluminiumsbatteriet har fordelene med høy effektivitet og holdbarhet, lav brennbarhet, lav pris og rask lading, og kan bli et trygt alternativ til konvensjonelle batterier.
I mai 2021 utviklet University of Queensland i Australia et nytt grafen-aluminiumsbatteri som kan lades raskere og mer bærekraftig enn konvensjonelle litium-ionbatterier, og som har lengre levetid enn dagens litium{{ 3}}ion-batterier. 3 ganger lengre levetid. Den drar fordel av høyere energitetthet og lader 70 ganger raskere.
However, the performance claims of previous aluminum-ion batteries are not as exaggerated as this time. On December 7, the news spread in the domestic capital market, and some investors even asked the listed company related questions. For example, ST Hemei, an investor asked on December 7: "The company signed an aluminum-ion battery cooperation agreement with Stanford University in 2015. I wonder if there are follow-up progress and research and development results?"
Fra 7. desember til 8. desember har mange børsnoterte selskaper som Zhenyu Technology, DFD, Guoxuan Hi-Tech, Jiangte Electric, mitt land Baoan, Ningde Times, Nebula, Yunlu og GEM investert i Publikum stilte spørsmål, prøver å forstå situasjonen knyttet til aluminium-ionbatterier, som viser hvor varmt markedet er.
In terms of the capital market, the stock price of my country's aluminum industry has bottomed out recently, rising by 10.02 percent , 6.07 percent , and 2.54 percent on December 6, December 7, and December 8, respectively. As of December 8, the market value has closed. Over one hundred billion.
Derimot falt Ningde-tiden med 4,33 prosent og 4,30 prosent henholdsvis 6. desember og 7. desember, og tok seg opp igjen 8. desember, med en økning på 1,59 prosent; Guoxuan Hi-Tech falt 6. desember og 10. desember. De falt med henholdsvis 4,81 prosent og 4,95 prosent 7. februar, og tok seg litt tilbake 8. desember, med en økning på 1,88 prosent .
Regarding the future of lithium-ion batteries, Wang Guanlin, Marketing Director of True Lithium Research, told the "Daily Economic News" reporter: "From the layout of the industry chain, (lithium-ion batteries) have been very perfect, and the high, middle and low end of each link are fully satisfied. From a technical point of view, it is also constantly creating the ultimate performance of each material, and derives products that are more in line with the needs. From the perspective of capital investment, they also like this mature product very much. As long as the market demand continues to explode, capital will continue to pour in. , to help the development of the industry. Currently, it is only necessary to upgrade all manufacturing and production links to achieve carbon emissions in each link. Therefore, it is still relatively difficult to replace lithium batteries."
