A Pearl-Chain-like Anode Composed of Silicon–Porphyrin Hits Peaks in Lithium-Ion Capacity

Abstract

Herein, we report a silicon–porphyrin hybrid based pearl-chain-like anode material, obtained by a simple step-by-step vapor deposition method. It demonstrates that the self-assembly of porphyrin molecules onto the pearled silicon nanowire (SiNW) surface is a promising route to significantly improve lithium-ion flux through the active materials and also alleviate the volume strain of silicon during the cycling process. Consequently, a large capacity up to 4752 mAh g–1, improved rate capability, and excellent capacity recovery can be attained. Equally important, our straightforward fabrication process has the scale-up potential to enable SiNW-based battery technology.

Advances and prospects of porphyrin derivatives in the energy field

“…This is attributed to TCPP as an additive that not only relieved the volume expansion of silicon but also enhanced the transmission ability of the electrode material to lithium ions. 97 PCN-600 (Fe) has been reported to be a mesoporous MOF material with strong chemical stability and extraordinary porosity. 98 Based on the characteristics of PCN-600 (Fe), Li et al fabricated a metal-organic framework (MOF) of iron-porphyrins, when used as an anode material for LIB (Fig.…”

Porous Co3O4/NiO@C Chains Assembled from Nanosheets with Excellent Lithium Storage Performance

“…Pearl-chain-like silicon-porphyrin was obtained by the vapor deposition method, pearl-chain-like structure was conducive to storing numerous lithium ions and relieving the large volume change from the charging/discharging process, a good rate capability was retained (4752 mA h g −1 at 0.1 C). 16 Fe 3 O 4 /C/P showed a good rate performance (692 mA h g −1 at 2000 mA g −1 ). 17 Herein, porous Co 3 O 4 /NiO@C chains are synthesized by a solvothermal method and high-temperature annealing process.…”

Facile Construction of Zn‐Doped Mn3O4−MnO2 Vertical Nanosheets for Aqueous Zinc‐Ion Battery Cathodes

“…Among batteries, lithium‐ion battery (LIB) is the most common power supply for conventional electrical devices. Unfortunately, it generally suffers from potential safety issues and environmental concerns resulting from the usage of organic electrolytes [1–4] . In addition, the limited availability of Li resources and the complex construction process would limit the practical applications.…”