Abstract
The most recent developments on Na-ion battery electrode materials are introduced and reviewed in this article.
Highlights
Lithium-ion batteries (LIBs) have emerged as one of the most popular choice for energy storage in portable devices, since their early commercialization in the 1990s
As the popularity of lithiumbased systems has continued to grow over the years, the demand for the raw materials has gradually outpaced the ability for its supply to recover.[13,14]
Most of the untapped lithium reserves have been found to be lying in isolated or geopolitically sensitive areas, in which the scaling up process would take large capital, involve a long lead time for processing of the raw material and which would lead to much higher expenses and a more costly product.[15]
Summary
Lithium-ion batteries (LIBs) have emerged as one of the most popular choice for energy storage in portable devices, since their early commercialization in the 1990s. Several lithium-based compounds that have shown excellent intercalation chemistry as LIB electrodes, have proven to exhibit comparatively good electrochemical performance in their sodium analogues (e.g. Na3V2(PO4)[3], Na2FePO4F).[24,25,26,27,28,29,30] For advances in the eld of NIBs to occur, fundamental questions have to be rst answered These include questions about the mechanics in the diffusion of sodium ions through the SEI layer and into crystal structure, as well as the interaction of the electrolyte with the active particles. We will conclude with some perspectives on possible solutions and suggestions that could be of signi cant interest for progress in this eld
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