Assembly of Co3S4 nanoporous structure on Ni foam for binder-free high-performance supercapacitor electrode

Construction of an Amethyst-like MoS2@Ni9S8/Co3S4 Rod Electrocatalyst for Overall Water Splitting

“…According to previous reports, transition metal sulphides that lose electrons can generate more positive charges, which is conducive to the adsorption of OH − and thus promotes the OER [ 33 , 54 ]. As shown in Figure S2 , the peaks at 779.77 and 797.56 eV could correspond to Co 2p 3/2 and 2p 1/2 , respectively, which may be assigned to Co 3+ and Co 2+ [ 55 ], and other peaks are ascribed to satellite peaks. The peaks at 161.80 and 163.10 eV are attributed to S 2p 3/2 and S 2p 1/2 ( Figure 4 d), corresponding to the Ni–S bond [ 54 ], whereas those at 164.10 and 168.50 eV are ascribed to Mo–S and S–O bonds, respectively [ 27 ].…”

Gel polymer electrolytes for rechargeable batteries toward wide-temperature applications

“…Theoretically, high temperatures have an inhibitory effect on the growth of dendrite. 66 As displayed in eqn ( 8), (9) and Fig. 3(d), a high temperature can facilitate ion diffusion, leading to the decrease of Z and contributing to the metal deposits with larger nuclei size and low nucleation density.…”

Interfacial engineering of suppressing Li dendrite growth in all solid-state Li-metal batteries

“…Typically, higher operating temperatures are required to obtain higher ionic conductivity, but this would accelerate the growth of Li dendrites. 37 Excessive stress or uneven pressure potentially causes cracks in the SSEs. These cracks reduce the mechanical strength and stability of the SSEs and provide a path for Li dendrite growth.…”

“…Therefore, the upper limits of external pressure depend on the characteristics of the materials. 37 Changes in stress and temperature would affect the electronic conductivity in SSEs. Excessive stress or higher temperatures improve the migration of electrons.…”