Building High Power Density of Sodium-Ion Batteries: Importance of Multidimensional Diffusion Pathways in Cathode Materials

Abstract

Emerging sodium-ion batteries (SIBs) devices hold the promise to leapfrog over existing lithium-ion batteries technologies with respect to desirable power/energy densities and the abundant sodium sources on the earth. To this end, the discoveries on novel cathode materials with outstanding rate capabilities are being given high priority in the quest to achieve high power density SIBs devices, and the multi-dimensional Na + migration pathways with low diffusion energy barriers are crucial. In light of this, the recent development of Prussian blue analogs and sodium superionic conductor (NASICON)-type materials with 3D Na + diffusion pathways for building high power density NIBs are provided in this perspective. Ultimately, the future research directions to realize them for real applications are also discussed.

Fabrication, electrochemical performance, and in situ infrared thermal imaging of Na 0.67 (Mn 0. 5 Fe 0 .5 ) 1‐x Cu x O 2 battery cells

“…where t is the time and B 1 , B 2 , and B 3 are the fitting constants of the Equation (5). The fitting parameters were given in Table 5, and adj.…”

“…Until now, the layered structure with P2-type symmetry formalized as Na y TMO 2 (0 < y < 1), which is used as a cathode material, has better battery performance, and easy production method compared to the other batteries. [2][3][4][5] Among the TMs, hybrid-type structures have received more attention since they have better electrochemical properties compared to the pure TM structure in Na y TMO 2 . [6][7][8] Yabuuchi et al discovered a P2-type Na 0.67 Fe 0.5 Mn 0.5 O 2 structure as a cathode material, and it reached 190 mAh/g for a low applied current density.…”

Iron‐Based Layered Cathodes for Sodium‐Ion Batteries

“…[2] Their features and recent progresses have been summarized by some reviews. [10,[20][21][22][23][24][25][26][27][28] No matter in which kind of cathode material, the key elements that majorly determine the electrochemical properties are 3d transition metals (TM). [29,30] As for LIBs, Ni/Co/Mn based layered oxides together with Fe-based phosphates have shown superior electrochemical properties and have achieved well-known success in practical utilizations.…”

Exploring Aluminum‐Ion Insertion into Magnesium‐Doped Manjiroite (MnO2) Nanorods in Aqueous Solution

“…For the latter, large scale battery storage has been demonstrated by numerous pilot studies as well as commercially viable installations. [1] To date Li ion batteries have dominated the sector but there are significant efforts in undertaking new approaches and developing new technologies such as organic and inorganic redox flow batteries [2][3] and going beyond traditional Li ion batteries such as potassium and sodium ion batteries [4][5] and multivalent ion batteries based on Zn, Mg, Ca, Fe and in particular Al. [6][7][8][9][10][11][12][13] The use of multivalent ion batteries is attractive because the multivalent ions in the electrolyte can transport more electrons per cation with a comparable amount of ion storage compared to Li ions.…”