Glucose-assisted synthesis of a SnS_x coated lithium titanate anode material for lithium-ion batteries

Abstract

The formation process of SnSx@C/LTO is demonstrated, in which the co-coating of carbon and SnSx is realized in one step, thereby improving the electrochemical performance of LTO.

A thermally etched N-doped porous layered silicon anode for improved cycling stability of lithium-ion batteries

“…where A is the surface area of the electrode (1.13 cm 2 ), n is the number of electrons per molecule attending the electronic transfer reaction (2), F is the Faraday constant (96 500 C mol À1 ), and C is the lithium-ion concentration in the electrode, which can be calculated from the density and the molecular weight of the materials, from eqn (5). R is the gas constant (8.314 J K À1 mol À1 ), T is taken as the room temperature (298 K), and s is the slope of the line Z 0 B o À0.5 , which can be obtained from the line of Z 0 B o À0.5 (Fig.…”

“…High-energy-density lithium-ion batteries are being developed to meet the demands of new technologies, such as portable electronics, electric vehicles, and energy storage power plants. [1][2][3][4][5] Silicon-based materials are promising anodes for next-generation high-energydensity lithium-ion batteries due to abundant silicon reserves, suitable operating potential (B0.2-0.3 V vs. Li/Li + ), and superb theoretical capacity (3579 mA h g À1 ). 6 However, practical applications are still limited by the excessive volume expansion during charging and discharging (B300-400%), resulting in significant capacity loss and poor cycle stability.…”