Interfacial engineering enables Bi@C-TiO microspheres as superpower and long life anode for lithium-ion batteries

Flower-like Bi2S3 nanostructures as highly efficient anodes for all-solid-state lithium-ion batteries

“…[4][5][6][7] However, Huang et al used graphene encapsulated Bi@C-TiO x as anode with liquid electrolyte and obtained a superior Li-ion storage electrochemical performance, where ultra large graphene (which work as "silk magic carpet") interfacial layer provided a highly conductive path for fast charge transfer along with low volume expansion during discharge/charge measurements. 8 A similar cushioning effect was also observed in our recent report where a hydride based solid electrolyte -LiBH 4 was used with Bi (as an anode) to assemble an all-solid-state battery and the obtained results showed that the existence of LiBH 4 as well as acetylene black (AB) impressively improved the cyclability of Bi anode. 9 In order to further enhance the capacity, Bi based chalcogenides (Bi 2 X 3 ; X ¼ S, Se, Te) have been explored, as the element X has ability to alloy with Li.…”

“…The detailed information is given elsewhere. 8 The prepared three-layer pellet was placed in a coin cell and was packed using peruoroalkoxy (PFA) gasket. A charge-discharge analyzer (HJ1001SD8, Hokuto Denko Co.) was used to observe the electrochemical performance of Bi 2 S 3 vs. Li-metal, by galvanostatic charge-discharge measurements at an optimized rate of 0.1C [ESI Fig.…”

Facile Synthesis of Porous Ternary MnTiO3/TiO2/C Composite with Enhanced Electrochemical Performance as Anode Materials for Lithium Ion Batteries

“…For the MnTiO 3 /TiO 2 /C composite (Figure b), two groups of oxidation/reduction peaks at 1.2 V/0.7 V and 2.1 V/1.6 V can be observed during the first anodic/cathodic sweep. The couple of peaks at 2.1 and 1.6 V can be assigned to the redox of anatase TiO 2 , demonstrating that anatase TiO 2 in the composite served as an active material . For another pair of peaks, the cathodic peak at 0.7 V corresponds to the electrochemical reduction of MnTiO 3 (MnTiO 3 + 3Li + + 3e − → Mn + LiTiO 2 + Li 2 O), while the weak anodic peak at 1.2 V is attributed to the conversion of metallic Mn to Mn 2+ and the decomposition of Li 2 O.…”

Constructing Hollow Ni0.2Co0.8S@rGO Composites at Low Temperature Conditions as Anode Material for Lithium‐Ion batteries

“…It is note that the hollow structure of Ni 0.2 Co 0.8 S‐2.5 is well maintained after the introduction of rGO, which can effectively accommodate the volumetric variation of the nanostructures upon cycling. The compact graphene coating can generate a compressive stress to restrain the expansion and make the volumetric variation to the center of the Ni 0.2 Co 0.8 S‐2.5 hollow nanocages upon cycling ,. Furthermore, rGO nanosheets can separate the Ni 0.2 Co 0.8 S‐2.5 nanocages from each other, avoiding the agglomeration the nanostructures upon cycling.…”

“…The compact graphene coating can generate a compressive stress to restrain the expansion and make the volumetric variation to the center of the Ni 0.2 Co 0.8 S-2.5 hollow nanocages upon cycling. [38,39] Furthermore, rGO nanosheets can separate the Ni 0. The cyclic voltammogram (CV) of Ni 0.2 Co 0.8 S-2.5@rGO was measured in the range of 3 to 0.01 V at the scan rate of 0.1 mV s À 1 , as shown in Figure 3a.…”