Engineering the pin effect through selective doping and architecture design towards high-rate sodium storage performance

Manipulating Molecular Structure to Trigger Ultrafast and Long‐Life Potassium Storage of Fe0.4Ni0.6S Solid Solution

“…Meanwhile, we calculated the activation energy ( E a ) and exchange current density ( j 0 ) according to the R ct value (Figure S25 and Table S4, Supporting Information) of EIS plots at various temperatures from 0 to 30 °C (Figure S25, Supporting Information). [ 50 ] On account of the Arrhenius equation (Equations (S3) and (S4)), the as‐prepared FNS/C solid solution possesses the smallest activation energy (52.1 kJ mol −1 ) among the three samples, which suggests that the energy barriers of the FNS/C particle have been effectively reduced, stemming from the synergistic effects of the unique solid‐solution texture and the 3D carbon scaffold (Figure 5e).…”

Antimony Sulfide-Based Materials for Electrochemical Energy Conversion and Storage: Advances, Challenges, and Prospects

“…Profiting from the aforementioned advantages, the capacity of 274.5 mAh g –1 could remain at 5.0 A g –1 after 1000 cycles. Even at the ultrahigh rate of 30.0 A g –1 , their capacity still reached up to 319.4 mAh g –1 …”

“…The schematic of structural collapse induced by stress concentration (h). Reproduced with permission from ref . Copyright 2022, Elsevier.…”

SnSe quantum dots anchored on few-layered Ti3C2 as anodes for sodium ion batteries with enhanced cycling stability

“…Although SIBs have cost advantages and unique chemical properties, the fact that a sodium ion has a larger radius than its counterpart has inhibited the rapid and effective insertion of metal ions, resulting in low capacity, poor rate capability, and limited cycle life. [17][18][19][20] Usually, in optimized metal-ion batteries, metal ions should be able to freely insert/ extract during charge-discharge cycles. In addition, the higher electrochemical potential of sodium implies a reduced working potential and subsequently reduced energy density, which has restricted the further development of SIBs.…”