。,。,。、,,。 。 1950。
The development of solid-state batteries (SSBs) has gained significant attention due to their potential for enhanced safety and energy density compared to traditional lithium-ion batteries (LIBs). SSB performance is greatly affected by the stability of interfaces throughout the battery cell, which vary depending on the materials chosen for the cathode, electrolyte/separator, and anode. Lithium metal anodes can achieve excellent performance but are expensive and highly reactive, leading to unwanted reactions at the solid electrolyte (SE)/electrode interface that can impact long-term performance. It is therefore critical to design electrolytes with high ionic conductivity/Li+ transport, a wide electrochemical operating window, and stable interfaces.
For more information on the capabilities of PHI XPS instruments for in-situ and ex-situ chemical analysis, please attend Dr. Kateryna Artyushkova''s upcoming Invited Talk on "Advances in XPS Analysis of Battery Materials" at the 244th ECS Meeting in Gothenburg, Sweden this October.
1 H. Huo; M. Jiang; B. Mogwitz; J. Sann; Y. Yusim; T.-T. Zuo; Y. Moryson; P. Minnmann; F.H. Richter; C.V. Singh; J. Janek. "Interface Design Enabling Stable Polymer/Thiophosphate Electrolyte Separators for Dendrite-Free Lithium Metal Batteries." Angewandte Chemie International, 2023, 62, e202218044.
2 S. Wenzel; T. Leichtweiss; D. Krüger; J. Sann; J. Janek. "Interphase formation on lithium solid electrolytes – An in situ approach to study interfacial reactions by photoelectron spectroscopy." Solid State Ionics, 2015, 271, 98-105
The gold standard of business intelligence.
Aircraft batteries have different requirements for land vehicles. For example, they need to be as light as possible while still being able to store the huge amounts of energy required to power flights and be able to quickly discharge large amounts of this energy when needed.
Your download email will arrive shortly
The aircraft could also benefit from a wider temperature of operation, especially at high temperatures, and the batteries also need to be more inherently safe than their land-based equivalents, as the dangers of an in-flight fire are more serious than one on the ground.
The Solid-state Architecture Batteries for Enhanced Rechargeability and Safety (SABERS) initiative is currently working to develop a battery that meets these goals to usher in a new era of power storage for electric air travel.
A joint venture between NASA, Georgia Institute of Technology, Argonne National Laboratory, and Pacific Northwest National Laboratory, SABERS researchers have been using different materials and novel construction methods to develop a new kind of battery.
"We wanted to use and combine currently available technologies in different and unique ways, using some of NASA''s core material science techniques and technologies it''s created," says Dr Rocco Viggiano, principal investigator for SABERS at NASA''s Glenn Research Center in Cleveland, Ohio.
"There are a lot of processes and techniques in place from lithium-ion and we wanted to make use of these, so we didn''t have to reinvent the battery from scratch."
SABERS'' goal is to create a scalable battery three times as energy-dense as current lithium-ion cells, inherently non-flammable, lightweight, and with a fast recharge speed.
To achieve this, the team turned to materials that had – until that point – not been used together in battery systems and developed a solid-state sulphur-selenium battery.
Instead of housing each cell inside its own casing, this battery is made up of individual cells that can be stacked vertically inside a single casing, which is called a bipolar configuration. Each cell consists of a lithium metal anode, a solid-state electrode, and a sulphur and selenium cathode, from where the energy is derived.
Here the particles are arranged in a graphene mesh: a NASA-created component called holey graphene, which has a high level of electrical conductivity and is ultra-lightweight.
This solution has not only increased the battery system''s energy density and reduced its overall weight, but also supports scalable and affordable manufacturing.
"From a supply chain standpoint, the US is the second largest supplier of sulphur in the world – it''s an inexpensive waste bi-product of fossil fuel refinement," Viggiano says. "We''re using it as the battery''s primary component, which is also great from a sustainability point of view, as we''re reducing its impact on the environment."
Given that aircraft are subjected to much more extreme environments, this new battery needed to be more robust than its predecessors. This was why a solid-state design was chosen, as these types of batteries don''t catch fire or overheat as quickly as their lithium-ion counterparts, and can also perform better in stressful environments.
For example, the lack of flammable liquids in its design means the new battery can safely reach much higher temperatures than the lithium-ion design.
"Previous cells can go up to 60°C, whereas our cells have been regularly tested up to 120°C, and we''ll be going to 150°C next," Viggiano says. "This is pretty important for the application of electric flight, as you''d usually have a heavy thermal management system to keep the battery from going into thermal runaway. By saving weight here, we''re also able to get additional range."
"There are always unexpected findings in research, and for us, well we weren''t quite expecting this level of safety. We cut a battery in half to test that it wouldn''t catch on fire, which it didn''t. But we were very surprised to discover it would continue to operate for a small time after it had been damaged," adds Viggiano.
Currently, SABERS'' demonstrator battery has achieved two times the energy density of previous battery designs and the researchers are now looking at new ways to further improve on this.
About El salvador solid-state batteries
As the photovoltaic (PV) industry continues to evolve, advancements in El salvador solid-state batteries have become critical to optimizing the utilization of renewable energy sources. From innovative battery technologies to intelligent energy management systems, these solutions are transforming the way we store and distribute solar-generated electricity.
When you're looking for the latest and most efficient El salvador solid-state batteries for your PV project, our website offers a comprehensive selection of cutting-edge products designed to meet your specific requirements. Whether you're a renewable energy developer, utility company, or commercial enterprise looking to reduce your carbon footprint, we have the solutions to help you harness the full potential of solar energy.
By interacting with our online customer service, you'll gain a deep understanding of the various El salvador solid-state batteries featured in our extensive catalog, such as high-efficiency storage batteries and intelligent energy management systems, and how they work together to provide a stable and reliable power supply for your PV projects.
Related Contents
