Hydrogel-Derived Three-Dimensional Porous Si-CNT@G Nanocomposite with High-Performance Lithium Storage

Multi-Yolk–Shell MnO@Carbon Nanopomegranates with Internal Buffer Space as a Lithium Ion Battery Anode

“…21 Nevertheless, its intrinsic poor electronic and ionic conductivity result in a bad rate performance, and the modest volume expansion still leads to fracturing and cracking of electrode material, causing a capacity decay. The smaller the size, the shorter the lithium ion diffusion time, 17 so the most straightforward solution is reducing the materials to a smaller nanometer size, such as nanodots, 22,23 nanorods, 24,25 nanotubes, 26,27 nanosheets, 28,29 nanocubes, 30,31 hierarchical nanostructures, 32,33 and multishelled structure. 34−36 Although the nanoscale materials possessing a higher contact surface area with electrolyte can cut down the transport time of lithium ions and electrons, the volume change is still not relieved and the electronic conductivity is still not improved.…”

“…Nevertheless, its intrinsic poor electronic and ionic conductivity result in a bad rate performance, and the modest volume expansion still leads to fracturing and cracking of electrode material, causing a capacity decay. The smaller the size, the shorter the lithium ion diffusion time, so the most straightforward solution is reducing the materials to a smaller nanometer size, such as nanodots, , nanorods, , nanotubes, , nanosheets, , nanocubes, , hierarchical nanostructures, , and multishelled structure. − Although the nanoscale materials possessing a higher contact surface area with electrolyte can cut down the transport time of lithium ions and electrons, the volume change is still not relieved and the electronic conductivity is still not improved. Another effective solution is using elastic carbon wrap electroactive materials and constructing a buffer space between active yolk and the conductive shell. − However, the active yolk of most yolk–shell nanomaterials cannot be restricted to the nanoscale with a high specific surface area toward highly improved lithium ion storage performance.…”

Reversible Silicon Anodes with Long Cycles by Multifunctional Volumetric Buffer Layers

“…27-1402), respectively. 35,36 Notably, the two peaks of anatase TiO 2 and Ti 5 Si 3 can be observed in the spectra of T-Si@C, as we described in the reaction equations above. 37 Specifically, the diffraction peak at 25.3°can be assigned to the (101) plane diffraction of anatase TiO 2 .…”

Advancement of technology towards high-performance non-aqueous aluminum-ion batteries

“…Lithium-ion batteries (LIBs) have been considered as one of the most major choices for the growing large-scale energy storage system and portable electronic devices, electric automobile in the past decades [6][7][8][9][10]. Nowadays, the commercial positive electrode materials are principally composed of layered LiMn 1ÀxÀy Co x Ni y O 2 [11,12], spinel LiMn 2 O 4 [13,14] or olivine LiFePO 4 [15,16], and the commercial negative electrode materials are mainly carbonbased materials [17][18][19].…”