Facile synthesis of Si/Ge/graphite@C composite with improved tap density and electrochemical performance

Abstract

A Si/Ge/graphite@C composite was synthesized by ball-milling and subsequent calcination. In the figure, the long-term cycling performance is displayed and the inset image is the tap density comparison of this sample with commercial graphite.

Ni–CoSe2 heterojunction coated by N-doped carbon for modified separators of high-performance Li–sulfur batteries

“…It demonstrates that the Ni-CoSe 2 heterojunction accelerates redox kinetics. 46 In addition, the change in peak current density of the pristine and modied separators indicates that Ni-CoSe 2 @NC can signicantly increase capacity utilization. Tafel plots tted from the CV peaks are showed in Fig.…”

Stable cycling and low-temperature operation utilizing amorphous carbon-coated graphite anodes for lithium-ion batteries

“…6 The depletion of non-renewable resources has led to an increase in the price of oil and the cost of cars, which has led to a shi in attention from gasoline-powered vehicles to lower-cost electric vehicles. 7,8 Currently, individuals must consider range and charging speed as the two primary factors when choosing an electric vehicle. 9 Recent advances in high specic energy electrode materials have largely alleviated the challenge of range anxiety, but the focus is now on solving the problem of charging speed and environmental adaptability, such as temperature uctuation.…”

Mapping of lithium ion concentrations in 3D structures through development of in situ correlative imaging of X-ray Compton scattering-computed tomography

“…For example, X-ray diffraction (XRD) is used for studying the crystal structure and lattice spacing of materials (Connolley et al, 2020;Matras et al, 2020). Although XRD can provide structural information about crystalline materials, it is not easy to perform characterization studies on amorphous materials or materials without long-range order (Chen et al, 2024;Chen & Huang, 2023;. The pair distribution function (PDF) utilizes total scattering (Bragg and diffuse scattering) and has been used to investigate long-range disordered materials with short-range ordering (Wiaderek et al, 2013).…”