Chemical reduction of nano-scale Cu2Sb powders as anode materials for Li-ion batteries

Thin films of Cu2Sb and Cu9Sb2 as anode materials in Li-ion batteries

“…The Cu 2 Sb synthesized with the ceramic method which resulted in crystallite sizes larger than 200 nm did, on the other hand, not show corresponding structural reversibility. In addition, several reports have been published [30][31][32][33][34] in which Cu 2 Sb capacities significantly lower than the capacity reported by Fransson et al, have been found, most likely due to poor reversibility in reaction (1). The Cu 2 Sb lithiation and delithiation reaction mechanism has recently been discussed by several groups [30,32,35] and a three-step process has been proposed, in which the reaction (1) has been divided into two separate steps.…”

“…As was recently shown [4,5] this problem can, however, be circumvented with materials composed of a mixture of Sb and Sb 2 O 3 nanoparticles obtained by electrodeposition from a solution containing antimony tartrate. As has been shown by several groups [27,[30][31][32][33][34], Cu 2 Sb can likewise be used as anode material in Li-ion batteries. According to Fransson et al.…”

Thermodynamic and kinetic analysis for carbothermal reduction process of CoSb alloy powders used as anode for lithium ion batteries

“…They have been attracting lots of attentions and various endeavors have been made aiming to synthesize high performance alloy anode materials [3][4][5][6][7][8][9][10][11][12][13]. Among those different types of candidates for anode materials, Sb-based alloy anode materials have high specific capacity and elevated operating voltage, which can overcome the drastic volume change of metallic antimony during the lithiation and delithiation cycles by introducing less active or inactive component as matrix for active Sb, such as Co [14,15], Se [16], Al [17], Zn [18,19], Ni [20] and Cu [21,22]. Active elements such as Sn [23,24] and In [25] can also make the volume change of the Sb-based electrode take place much smoothly because the lithiation and delithiation of the two active components occur at different potentials, the unreacted phase can accommodate the mechanical strain yielded by the reacted phase.…”

Theoretical investigation for Li2CuSb as multifunctional materials: Electrode for high capacity rechargeable batteries and novel materials for second harmonic generation

“…Thackeray et al [3] presented an overview of several systems, particularly those that operate by lithium insertion/metal displacement reaction with a host metal array at room temperature, based on the attempts that those systems show strong structural relationships between a parent structure and its lithiated products. Ren et al [4] attempted a novel process to prepare nanoscale Cu 2 Sb and alloy powders as anode materials for lithium ion batteries. The nanoscale Cu 2 Sb alloy showed good cyclability with a stable specific capacity of 200 mA/h g −1 within 25 cycles.…”