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The technological leap of lithium battery 18650 3.7v provides a "turnaround" opportunity for this.
Global lithium battery production and manufacturing are mainly controlled by China, Japan and South Korea. The European automotive industry, which has 3.4 million employees, has switched from internal combustion engines to electric drive systems. If it fails to successfully introduce key lithium battery technologies to Europe, it will rely on power batteries from Asian manufacturers. "
The upcoming technological leap of lithium battery 18650 3.7v provides a "turnaround" opportunity for this.
As Germany and Europe's largest applied scientific research institution, the Fraunhofer Association for the Promotion of Applied Research (Fraunhofer-Gesellschaft) is doing a strategic international cooperation plan on lithium battery 18650 3.7v. It is reported that the plan is undertaken by Empa in Dübendorf (CH), Switzerland, and the Fraunhofer Institute for Silicate Research ISC at the University of Würzburg in Germany, which launched a solid-state battery project in January.
Fraunhofer ISC will provide its experience and technology in solid-state battery process development and battery production, and produce the first batch of lithium battery 18650 3.7v.
lithium battery 18650 3.7v do not require easy They can also use liquid electrolytes and thus offer significantly improved operational reliability. They also offer advantages in terms of size and weight, as less complex safety housings are required. In addition, the use of metal anode materials (lithium) instead of the graphite anodes currently commonly used in lithium battery 18650 3.7v can increase energy density and significantly shorten charging times.
Although the individual components of future lithium battery 18650 3.7v (cathode, anode, electrolyte) have been well studied in the laboratory, the biggest challenge is to integrate them into a stable integrated system. It is very important to achieve a long service life with high performance over as many charge and discharge cycles as possible in order to surpass today's conventional lithium battery systems.
The collaboration between Empa and Fraunhofer ISC aims to eliminate the most difficult problems in the industrial production of lithium battery 18650 3.7v. important technical hurdles.
Who are the parties involved?
The Empa-FraunhoferISC collaboration, named IE4B ("Interface Engineering for Safe and Sustainable High-Performance Batteries"), started on January 1, 2019 as part of the FraunhoferICON ("International Cooperation and Networking") funding program and will run for three years. Through ICON, the Fraunhofer Society aims to expand the strategic cooperation of its institutes with selected international institutions in various fields. To date, for example, projects have been launched at the University of Cambridge and Johns Hopkins University.
Empa's main focus in the recently launched IE4B project is the development of solid-state electrolytes, the production and characterization of thin films with tailored electronic properties, and nanostructured anode materials. The Fraunhofer ISC and its "Fraunhofer Research and Development Center Electromobility Bavaria" work on the development of lithium-conducting polymers as well as protective layers of sol-gel materials with specific battery properties. In addition, it develops, manufactures and tests prototypes and small series batteries.
Industrial companies from Germany and Switzerland have also been involved in the IE4B project from the outset as part of a steering group that looks at the project from an industrial perspective: These include representatives of the chemical industry (such as Heraeus), mechanical engineering companies (such as the Bühler Group), battery manufacturers such as Applied Materials (Varta) and technology companies such as ABB.
How is the goal achieved?
The aim of the project is to develop a solid-state battery that allows stable charge and discharge cycles at room temperature and can be charged quickly at the same time.
The project is divided into two phases: The first phase deals with fundamental aspects and uses a battery model system manufactured using thin-film methods at Empa and the ISC. In this first phase, the processes taking place at the interface between the positive electrode, the solid-state electrolyte and the negative electrode are to be precisely understood and monitored.
In the second phase, these experiences and technologies will be used to manufacture functional lithium battery 18650 3.7v, which will be produced in small batches with the process engineering expertise of the Fraunhofer ISC.
"Our common goal is not only to understand the interface better, but also to be able to transfer this knowledge into the manufacturing process. The know-how of Fraunhofer and Empa complement each other very well," explains Henning Lorrmann from the Fraunhofer Research and Development Center Bavaria for Electric Vehicles (FZEB) at the Fraunhofer ISC.
The two-stage approach has decisive advantages: As a model system in phase one, the structure of thin-film batteries is easier to analyze. This allows the identification of the best matching electrode and electrolyte combinations. The more complex three-dimensional structures of larger battery cells in phase two are easier to achieve with the materials matched beforehand.
Piealo Gr?ning is a member of the Empa board of directors and one of the project coordinators. He emphasizes the strategic importance: "The structure of lithium-ion lithium battery 18650 3.7v is very complex and a major challenge in materials science. With this collaboration, we are combining outstanding expertise in materials science and process engineering, which is exactly the key to successfully advancing the development of lithium battery 18650 3.7v."
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