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Sodium-Ion Batteries: From Research to Commercialization, Reports IDTechEx
SIBs have the same fundamental working principle as LIBs but rely on sodium rather than lithium as mobile cations. Unlike lithium, sodium does not electrochemically alloy with aluminum at room temperature. Thus, the copper current collector on the anode can be replaced by cheaper aluminum; it not only lowers the SIB costs, but also reduces the transportation risks, as SIBs can be transported completely discharged at 0V. Hard carbon is typically used as the anode active material instead of graphite, as crystalline graphite has poor storage capabilities for sodium ions. Various cathode chemistries based on layered transition metal oxides, polyanionic compounds, and Prussian Blue Analogues can be used. Electrolytes and separators, as well as the positive current collectors, are similar to LIBs, except for the use of sodium salts in the electrolyte. The IDTechEx report compares Na-ion materials and chemistries, including cell cost breakdowns, to evaluate their market potential.
Although Na-ion technology mimics Li-ion with similar types of electrodes and electrolytes, Na is three times heavier than Li and has a redox potential 300mV lower, which inherently reduces the energy density of Na-ion technology by at least ∼30% compared to Li-ion. Therefore, the usage of Na-ion technology alone in applications requiring high energy density, such as battery electric cars, is partly eliminated. However, in applications where energy density is not as critical, for example stationary energy storage, electric-two wheelers, and electric microcars, Na-ion batteries can be ideal due to their power, safety, and cost characteristics.
Most Na-ion companies are based in China . The Chinese government is supporting the development of the country's Na-ion battery industry with a view to securing a stable supply of batteries and taking the lead in the development of next-generation batteries. IDTechEx research finds nearly 20 companies working on sodium-ion battery technology in China alone. This is reflected by the patent activity being highest in the region as well. Despite lingering uncertainties about market prospects, companies in Western countries are making moves to enter the business, seeing the future potential of Na-ion batteries.
The IDTechEx report, "Sodium-ion Batteries 2023-2033: Technology, Players, Markets, and Forecasts", provides analysis and reporting of key Na-ion players, including those in the supply chain. It offers further detailed company analysis such as technology analysis, product introduction, roadmap, financial/funding, materials, cell specification, manufacturing, supply chain, partnerships, patent analysis, future business, and SWOT analysis.
To find out more about this report, including downloadable sample pages, please visit www.IDTechEx.com/Sodium.
Shazan Siddiqi , Technology Analyst at IDTechEx and author of this article, will be presenting a webinar on - Will Sodium-Ion Batteries Disrupt and Conquer?.
The following aspects will be addressed:
To find out more and register your place on one of our three sessions, please click here. If you are unable to make the date, please do register anyway to receive the links to the on-demand recording and slides as soon as they are available.
IDTechEx guides your strategic business decisions through its Research, Subscription and Consultancy products, helping you profit from emerging technologies. For more information, contact research@IDTechEx.com or visit www.IDTechEx.com.
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