Electrospun Ternary Composite Metal Oxide Fibers as an Anode for Lithium-Ion Batteries

Abstract

Nickel–cobalt–manganese oxides (NCMs) are widely investigated as cathode materials for lithium-ion batteries (LIBs) given their beneficial synergistic effects of high storability, electrical conductivity, and stability. However, their use as an anode for LIBs has not been adequately addressed. NCM nanofibers prepared using the multi-needle electrospinning technique are examined as the anode in LIBs. The NCM nanofibers demonstrated an initial discharge capacity of ∼1,075 mAh g−1 with an initial capacity loss of ∼42%. Through controlling the conductive additive content, the initial discharge capacity can be further improved to ∼1810 mAh g−1, mostly attributing to the improved interfiber connectivity supported by the significant lowering of impedance when the amount of conductive additive is increased. This study also reveals that the conventional ratio of 80:10:10 wt% (active materials:additives:binder) is not optimal for all samples, especially for the high active surface area electrospun nanofibers.

Quasi-anisotropic benefits in electrospun nickel–cobalt–manganese oxide nano-octahedron as anode for lithium-ion batteries

“…8,9 In contrast, inferior cycling stability and mediocre rate performance can be further enhanced through morphological and material composition engineering. [10][11][12] Nanostructured TMO, such as nanoparticles, 13,14 nanofibers, 15,16 nanoflowers, 17,18 etc., have been employed to shorten the ion-diffusion pathway and relieve mechanical stress from volume expansion, improving the rate performance and enhancing the cycling stability of TMO. 19,20 Depending on their structural and electronic dimensional symmetry, nanostructure morphologies can be categorized into isotropic and anisotropic.…”

Effect of Annealing Temperature on Morphology, Structural and Magnetic Properties of Electrospun Nickel Oxide Nanofibers

“…One-dimensional nanofibers (NFs) are significant among nanomaterials because of their continuity in particle arrangement, which helps signal transmission faster than nanoparticles. We use NFs for data storage and transfer (1) , gas sensors (2) , supercapacitors (3) , and electrochromic devices (4) . Template synthesis, self-assembly, drawing, hydrothermal, and electrospinning are some processes used to make one-dimensional NFs.…”

Electrospun polyacrylonitrile fibrous membrane for dust removal

“…In addition, in the multi-needle electrospinning technology, the arrangement of the needles and the electric field interference between the needles are also the main problems that need to be solved. Therefore, the mainstream is still the single-fluid electrospinning process (Zhang et al, 2021;Ling et al, 2022), which hold the greatest promise for producing commercial fibrous products. According to the principle of the electrospinning technique, high voltage (i.e., 0-30 kV) is applied between the blunt needle and metal collecting plate to form a stable high-voltage electric field.…”