A rational design of the coupling mechanism of physical adsorption and chemical charge effect for high-performance lithium–sulfur batteries

Abstract

Trapping LPSs by the anion electrostatic effect of –SO3H and the chemical adsorption of N-doped carbon for enhanced Li–S batteries.

Structure and electrochemical performance modulation of a LiNi0.8Co0.1Mn0.1O2 cathode material by anion and cation co-doping for lithium ion batteries

“…6c and d shows, with the increase of cycle, the strength of the main peaks decreases rapidly for NCM and NCM/C, revealing that the layer structure is gradually damaged by the compressive/tensile strain resulting from the H2-H3 phase transition. [49][50][51] And NCM/CB exhibits overlapped proles, proving the outstanding reversibility of the H2 + H3 transition and the good structural stability.…”

Core–Shell MOF@COF Motif Hybridization: Selectively Functionalized Precursors for Titanium Dioxide Nanoparticle-Embedded Nitrogen-Rich Carbon Architectures with Superior Capacitive Deionization Performance

“…10 Thus, it could be seen clearly that TiO 2 @ COF-2 exhibits higher carbon and nitrogen contents (Table S2) in comparison with TiO 2 /C, which could be beneficial for electron transfer and ion adsorption. 61 Electrochemical behaviors of the TiO 2 /C, TiO 2 @COF-x, and COF-C electrodes were studied by cyclic voltammetry (CV) recorded in the potential window of −0.5 to 0.5 V in a three-electrode system with Pt as the counter electrode, 1 M NaCl aqueous solution as the electrolyte, and a saturated calomel electrode (SCE) as a reference electrode. Figure 5a shows the CV curves of TiO 2 /C and TiO 2 @COF-x at 1 mV s −1 , revealing that TiO 2 @COF-2 possesses a stronger peak area as compared with other samples, suggesting its better capacitive performance.…”

“…The high-resolution N 1s XPS spectra (Figure d) indicate that peaks at 398.5, 399.5, 400.4, 401.2, and 403.9 eV correspond to pyridinic N, pyrrolic N, the N in the TiO 2 lattice (N–Ti–O bond), graphitic N, and oxidized N, respectively. , The high-resolution C 1s spectra (Figure S7) reveal that diversified carbon species exist in the carbon phase of the samples, which is expected to promote electrical conductivity and provide electrical double-layer capacitance . Thus, it could be seen clearly that TiO 2 @COF-2 exhibits higher carbon and nitrogen contents (Table S2) in comparison with TiO 2 /C, which could be beneficial for electron transfer and ion adsorption …”

Novel Interlayer on the Separator with the Cr3C2 Compound as a Robust Polysulfide Anchor for Lithium–Sulfur Batteries

“…Synthesis of Li 2 S 6 Solution and the Determination for Adsorption Amount of Li 2 S 6 . According to the reported literature, 27 the Li 2 S 6 solution was prepared by dissolving Li 2 S and sublimed sulfur with a stoichiometrically molar ratio of 1:5 into 5 mL of the electrolyte. The adhesion ability of the asprepared Cr 3 C 2 or Cr 2 O 3 composite to Li 2 S 6 was investigated with the same droplets of the Li 2 S 6 solution in 10 mL of the electrolyte in comparison with 50 mg solid powder as standard.…”