Boosting lithium storage by facile functionalization of graphene oxide nanosheets via 2-aminoanthraquinone

Enhanced Structural Stability and Volumetric Capacity of a 3D Pyknotic Graphene Conductive Network via a Pillar Effect of Sn Nanoparticles for Sodium-Ion Batteries

“…By coupling with the following equations, the corresponding types of Na-ion storage can be better revealed: where b can be quantified by the relationship between i and v and is usually used to identify the Na-ion storage behavior: totally diffusion-controlled ( b = 0.5) or capacitive behavior ( b = 1.0). − As presented in Figure c, the b values of the cathodic and anodic peaks are 0.87 and 0.95, respectively, indicating the typical capacitance-controlled behavior. Afterward, according to eqs and , the detailed capacitive contribution can be collected to reveal the evolution of Na-ion storage behavior under different scan rates. where k 1 v and k 2 v 1/2 show the capacitance- and diffusion-controlled part, respectively, and can be verified according to the relationship between i/v 1/2 and v 1/2 . − With the scan rate increase from 0.1 to 1.5 mV s –1 , the surface-controlled behavior ( k 1 v ) gradually becomes pronounced (Figure d) and finally increases to as high as 94.4% (1.5 mV s –1 ). Meanwhile, the corresponding fraction of capacitive current relative to the total current can be well separated in CV curves (Figure S6b).…”

Encapsulation of BiOCl nanoparticles in N-doped carbon nanotubes as a highly efficient anode for potassium ion batteries

“…As one of the electrical energy storage devices, lithium ion batteries (LIBs) have been widely used in various fields (transportation, communication, and military equipment, etc.). [1][2][3][4] However, the high cost and low crustal abundance hinder the long-term development of LIBs. Therefore, it is necessary to develop and apply other alternative batteries.…”

“…). 1–4 However, the high cost and low crustal abundance hinder the long-term development of LIBs. Therefore, it is necessary to develop and apply other alternative batteries.…”

Monodispersed copper phosphide nanocrystals in situ grown in a nitrogen-doped reduced graphene oxide matrix and their superior performance as the anode for lithium-ion batteries

“…Compared with various C materials, RGO excels in its electrical conductivity, chemical stability, specific surface area, and ability to firmly bind with active materials to promote charge transfer and magnify stability. 35,36,[78][79][80][81] Furthermore, nitrogen (N)-doping has proved to be a potent approach to enhancing the performance of graphitic materials in terms of their electronic conductivity and wettability. 37,38 Hence, doping N atoms into RGO for LIBs could desirably ameliorate the electrical conductivity as well as the Li + transportation.…”