Electrochemical properties of lithium–titanium oxide, modified with Ag–Cu particles, as a negative electrode for lithium-ion batteries

Abstract

Composites of Li4Ti5O12 with Ag–Cu particles were successfully synthesized by solid-state reaction followed by thermal decomposition of the metal substrates.

Structure, Morphology, and Electrochemical Properties of Carbon-Coated Lithium-Manganese Orthosilicate with Sucrose as a Carbon Source

“…The current density values for Li 2 MnSiO 4 /C composites increased together with the amount of sucrose added into the reactor chamber, suggesting enhanced kinetics of lithium insertion/extraction reaction into/out of lithiummanganese orthosilicate grains. This effect supports findings from galvanostatic charge/discharge test and is related to the enhanced conductivity of LMS electrodes, suggesting an increase in their electrochemically active surface area [10,[26][27][28][29].…”

The effect of compressive stresses on a silicon electrode’s cycle life in a Li-ion battery

“…A higher charge transfer resistance value for low pressed electrodes may be attributed to a partial loss of electrical contact between the grains and/or between the copper current collector. CT parameters refer to the elemental process of lithium ion reduction/oxidation on the particle's surface, however, as was previously stated, 22,23 both lithium ions and electrons on the particle surface are needed for the reaction to take place. If there is a poor electrical connection with the current collector (mainly by the conductive carbon) only a small part of the surface is electrochemically active and poor kinetics of the lithium ion reduction/oxidation are observed.…”

High Rate Performance of Ca-Doped Li4Ti5O12Anode Nanomaterial for the Lithium-Ion Batteries

“…Generally, the strategy includes the preparation of nanometer particles [6], carbon coating [7], and doping with aliovalent metal ions [8][9][10][11][12][13][14][15] (V 5+ [8], Sr 2+ [9], La 3+ [10], Mg 2+ [11], Al 3+ [12], Co 3+ [13], and Ru 3+ [14]) in Li, Ti, or O sites; the selection of morphologies has a crucial influence on the electrochemical characteristics of LTO materials [15][16][17][18]. Additionally, there are literatures which reported various strategies including combined ion coping or sheet-encapsulated coating [12,[19][20][21][22]. In this work, the effects of Ca-doping on the microstructure, morphology, and electrochemical characteristics of LTO have been investigated.…”