Rationally integrated nickel sulfides for lithium storage: S/N co-doped carbon encapsulated NiS/Cu₂S with greatly enhanced kinetic property and structural stability

Abstract

Nickel sulfides are promising anode materials for lithium-ion batteries (LIBs) due to their high theoretical capacities but suffer from the sluggish kinetic process and poor structural stability. Herein, we develop...

Copper Activation Enabling Reversible Aqueous Cu−ZnS Battery Chemistry

“…After complete charging, HR‐TEM imaging in Figure 1b shows clear lattice fringes with interplanar spacing of 2.87 Å, which correlates to the (103) plane of hexagonal crystal system covellite CuS [29] . After complete discharging (Figure 1c and 1d), the discharge product has interplanar distances of 3.93 Å and 2.61 Å, which coincide to the d spacing of Cu 2 S (300) and (380) planes, respectively [30,31] . The Cu and S ions valence state of the discharge and charge products of ZnS NPs electrodes were further studied by XPS technique.…”

“…[29] After complete discharging (Figure 1c and 1d), the discharge product has interplanar distances of 3.93 Å and 2.61 Å, which coincide to the d spacing of Cu 2 S (300) and (380) planes, respectively. [30,31] The Cu and S ions valence state of the discharge and charge products of ZnS NPs electrodes were further studied by XPS technique. All binding energy is calibrated using C1s (284.8 eV) as the reference.…”

Phytic Acid Assisted Fabrication of High Specific Surface Area Carbon-Wrapped Ni2P4O12 Nanoparticle Electrodes for Lithium-Ion Battery

“…At present, the anode materials for the more mature and widely publicized LIBs mainly encompass carbonaceous materials 9 (hard carbon, soft carbon, etc. ), organic compounds, 10 and some transition metal compounds (Cu 2 S, 11 CoP, 12 etc.). Hybrid structures built on three-dimensional (3D) amorphous carbon layers and noncarbon-active materials have emerged as an attractive and rapidly expanding electrode.…”

Electrode/electrolyte additives for practical sodium-ion batteries: a mini review

“…Recently, LIBs achieved great success by virtue of their high energy density and long lifetime. [14][15][16][17][18][19][20] Even though the cost of lithium is increasing rapidly due to its uneven distribution and the lack of resources, the demand for LIBs for consumer electronics, communication, computers and electrified vehicles is still growing rapidly. [21][22][23][24][25][26] The high-quality lithium resources in the world are mostly distributed in Australia and South America, where there may be political issues.…”

“…Recently, LIBs achieved great success by virtue of their high energy density and long lifetime. 14–20 Even though the cost of lithium is increasing rapidly due to its uneven distribution and the lack of resources, the demand for LIBs for consumer electronics, communication, computers and electrified vehicles is still growing rapidly. 21–26…”