Li/Na Ion Intercalation Process into Sodium Titanosilicate as Anode Material
Source abstract
Abstract
Abstract A natisite structured material, Na2TiSiO5, has been investigated as anode for lithium‐ and sodium‐ion batteries. The results show that Na2TiSiO5 can deliver a capacity of 260 mAh g−1 with good reversibility when used as anode in Li‐ion batteries. In contrast to the conversion reaction mechanism observed for its analogue Li2TiSiO5, a solid‐solution type intercalation mechanism is found for the lithiation/delithiation process of Na2TiSiO5. Lithium intercalation occurs through a three‐dimensional diffusion path after crossing an energy barrier around 1.0 eV. Sodium‐ions could only migrate through a one‐dimensional channel after overcoming a much higher energy barrier of 1.8 eV, which solely delivers a reversible capacity of 40 mAh g−1 for sodium‐ion storage.
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Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Extraction and Separation Processes
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Chemistry and Shanghai Key Laboratory of Molecular Catalysis Institute of New Energy and Innovative Materials Institute of New Energy, iChEm (Collaborative Innovation Center of Chemistry for Energy Materials) Fudan University Shanghai 200433 P. R. China
College of Chemistry and Molecular Engineering Zhengzhou University Zhengzhou 450001 P. R. China
Funding
National Natural Science Foundation of China · National Basic Research Program of China
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