SnO2/Bi2O3/NF heterojunction with ordered macro/meso-pore structure as an advanced binder-free anode for lithium ion batteries

Co‐MOF as Stress‐Buffered Architecture: An Engineering for Improving the Performance of NiS/SnO2 Heterojunction in Lithium Storage

“…Meanwhile, the peak of Li 2 O and Li x Sn did not disappear completely, which could be attributed to the formation of SEI and incomplete transformation reaction. [19,22,50] Interestingly, the NSM electrode shows a good compatibility with solid-state PEO-based polymer electrolyte due to the porous nature of MOF and the firm hydrogen bonding between hydroxyrich organic ligands in MOF and similar functional groups in PEO (Figure 7a). [51,52] The time-voltage curves and cycle performances of NS and NSM electrodes with the succinonitrile/PEO mixed electrolyte are displayed in the Figure 7b,c.…”

“…Meanwhile, the peak of Li 2 O and Li x Sn did not disappear completely, which could be attributed to the formation of SEI and incomplete transformation reaction. [ 19,22,50 ]…”

“…[13,18] Recently, constructing heterostructures with interfacial effects and mismatched lattices by coupling compounds with different properties have proved a novel strategy to improve the reaction reactivity and kinetics, which can be attributed to the internal electric field and "job-sharing" or "ion reservoir" mechanism. [19][20][21] In addition, the volume expansion of MO and MS can be alleviated by heterostructures with controllable morphology design, such as core-shell structure, porous structure and cavity structure. [22][23][24] However, the preparation of heterojunctions with special structures often requires complex synthesis conditions to control the synthesis process in dynamics and thermodynamics.…”

“…Meanwhile, the homogeneous heterostructures are usually difficult to controllably synthesize due to crystal plane mismatch and dynamic limitation, and may result in several single components. [19,22,23] As a result, the challenge of constructing more heterogeneous structures has emerged. A common strategy to solve the problem of heterojunctions is to encapsulate them in domain-limited space.…”

Many Facets of Photonic Crystals: From Optics and Sensors to Energy Storage and Photocatalysis

“…Most notably, a much higher specific capacity and an improved capacity retention can be observed for the composite IO material. Similar IO works with composite materials of have explored similar strategies to improve the electrochemical performance and stability; Some examples include SnO 2 /Bi 2 O 3 composite IOs prepared on nickel foam [412] and Li 2 FeSiO 4 /C composite nanofibers incorporated into an IO design. [413] The enhanced rate capabilities and impressive cycle life of IO materials have also been explored for non-lithiumion systems, such as a aqueous zinc-ion battery system with a MnO 2 cathode [411] shown in Figure 29e.…”