Understanding the Li-ion storage mechanism in a carbon composited zinc sulfide electrode

Abstract

The Li+ storage mechanism in a carbon composited zinc sulfide as an enhanced conversion-alloying anode material for Li+ ion batteries is studied by in situ methods. Further, it is found that the (de)lithiation processes are affected by a low charge transfer resistance, and the coated carbon can effectively improve the long-term cycling stability.

Effect of Continuous Capacity Rising Performed by FeS/Fe3C/C Composite Electrodes for Lithium‐Ion Batteries

“…In contrast, R CT of the FeS electrode sharply increases until the 100th cycle, corresponding to the terrible capacity decay (Figure d); in subsequent cycles, R CT of the FeS electrode continuously declines but is still higher than that of the FeS/Fe 3 C/C electrode in lithiation conditions. In summary, the interconnected carbon ball morphology can improve Li + /electron mobility and form a better protective SEI layer, thus promoting the redox reaction …”

“…In summary,t he interconnected carbon ball morphology can improveL i + /electron mobility and form a better protective SEI layer,t hus promoting the redox reaction. [48] Conclusion FeS nanosheets and FeS/Fe 3 C/C nanocomposites consistingo f well-dispersed FeS and Fe 3 Cn anoparticles and interconnected carbon balls were synthesized by af acile hydrothermal methoda nd as ubsequent sintering process. The interconnected carbon balls are found to have as ignificant impact on the electrochemical performance of the FeS-based electrodes.…”

Stable fast‐charging electrodes derived from hierarchical porous carbon for lithium‐ion batteries

“…The deconvoluted peaks of commercial graphene, graphite, AC, P‐AC, and C‐AC in Figure S9 indicate CC/CC, CO, COC, CO, OCO, and CO 3 at 284.4 to 284.5, 285.7 to 286.1, 286.4 to 286.9, 288.3 to 288.5, 289.4 to 289.5, and 290.9 eV, respectively 33‐37 . The changes in the area of deconvoluted C1s and O1s peak related to the COH and OCO peaks on AC, P‐AC, and C‐AC before and after 500 cycles are shown in Figure 4 38‐40 . The solid symbol indicates the area ratio of an initial functional group, whereas the empty symbol shows the ratio after 500 cycles.…”

“…[33][34][35][36][37] The changes in the area of deconvoluted C1s and O1s peak related to the C OH and O C O peaks on AC, P-AC, and C-AC before and after 500 cycles are shown in Figure 4. [38][39][40] The solid symbol indicates the area ratio of an initial functional group, whereas the empty symbol shows the ratio after 500 cycles. Notably, the C O and O C O peaks of AC changed after 500 cycles.…”

Impact of 3‐Cyanopropionic Acid Methyl Ester on the Electrochemical Performance of ZnMn2O4 as Negative Electrode for Li‐Ion Batteries

“…Among different possible metals, which can form an alloy with lithium, zinc has some advantages over other metals in terms of its high availability, low toxicity, and relatively small volume variation upon alloying/dealloying. [ 2,3 ] As representative of conversion/alloying type materials, ZnTM 2 O 4 (with TM = Fe, Co, Mn) spinel‐type compounds exhibit promising perspectives for LIB applications. [ 4 ] The use of Mn and Fe addresses sustainability issues due to the higher abundance of these metals over Co in the Earth crust.…”