High-rate cycling in 3D dual-doped NASICON architectures toward room-temperature sodium-metal-anode solid-state batteries

文献情報

出版日 2023-12-13

DOI 10.1039/D3EE03879C

インパクトファクター 38.532

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要旨

Sodium metal-based solid-state batteries hold tremendous potential for next-generation batteries owing to low-cost earth-abundant sodium resources. However, fabricating thin free-standing solid electrolytes that could cycle sodium at high current densities has been a major challenge in developing room temperature solid-state sodium batteries. By developing high conducting Zn2+ and Mg2+ dual-doped Na3Zr2SiPO12 (NASICON) solid electrolytes and fabricating a 3D porous-dense-porous architecture (with an ultrathin, 25 μm, dense separator) coated with a nanoscale ZnO layer, an extremely low anode interfacial resistance of 3.5 Ω cm2 was realized. This enabled a record high critical current density of 40 mA cm−2 at room temperature with no stack pressure and a cumulative sodium cycling capacity of 10.8 A h cm−2 was achieved. Furthermore, pouch cells were assembled as a proof-of-concept with Na3V2(PO4)3 cathodes on dense-porous bilayer electrolytes with sodium metal anodes and cycled up to 2C rates at room temperature with no applied stack pressure.

掲載誌

Energy & Environmental Science

CiteScore: 32.34

自己引用率: 3.4%

年間論文数: 481

Energy & Environmental Science is an international journal dedicated to publishing exceptionally important and high quality, agenda-setting research tackling the key global and societal challenges of ensuring the provision of energy and protecting our environment for the future. The scope is intentionally broad and the journal recognises the complexity of issues and challenges relating to energy conversion and storage, alternative fuel technologies and environmental science. For work to be published it must be linked to the energy-environment nexus and be of significant general interest to our community-spanning readership. All scales of studies and analysis, from impactful fundamental advances, to interdisciplinary research across the (bio)chemical, (bio/geo)physical sciences and chemical engineering disciplines are welcomed. Topics include, but are not limited to, the following: Solar energy conversion and photovoltaics Solar fuels and artificial photosynthesis Fuel cells Hydrogen storage and (bio) hydrogen production Materials for energy systems Capture, storage and fate of CO2, including chemicals and fuels from CO2 Catalysis for a variety of feedstocks (for example, oil, gas, coal, biomass and synthesis gas) Biofuels and biorefineries Materials in extreme environments Environmental impacts of energy technologies Global atmospheric chemistry and climate change as related to energy systems Water-energy nexus Energy systems and networks Globally applicable principles of energy policy and techno-economics

High-rate cycling in 3D dual-doped NASICON architectures toward room-temperature sodium-metal-anode solid-state batteries

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Energy & Environmental Science

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