From Micropores to Ultra-micropores inside Hard Carbon: Toward Enhanced Capacity in Room-/Low-Temperature Sodium-Ion Storage

• Published in: Nano-micro letters Vol. 13; no. 1; pp. 98 - 14
• Main Authors: Yang, Jinlin, Wang, Xiaowei, Dai, Wenrui, Lian, Xu, Cui, Xinhang, Zhang, Weichao, Zhang, Kexin, Lin, Ming, Zou, Ruqiang, Loh, Kian Ping, Yang, Quan-Hong, Chen, Wei
• Format: Journal Article
• Language: English
• Published: Singapore Springer Nature Singapore 01.12.2021; Springer Nature B.V; SpringerOpen
• Subjects: Anodes; Carbon; Carbon anode; Carbonization; Chemical synthesis; Diffusion rate; Displays; Electrochemical analysis; Engineering; Extra sodium-ion storage sites; High areal capacity; Ion storage; Low temperature; Low-voltage capacity; Na-ion batteries; Nanoscale Science and Technology; Nanotechnology; Nanotechnology and Microengineering; NMR; Nuclear magnetic resonance; Porosity; Rechargeable batteries; Sodium; Sodium-ion batteries; Ultra-micropores; Carbon anode; Low-voltage capacity; Ultra-micropores; Extra sodium-ion storage sites; High areal capacity

Highlights Hard-carbon anode dominated with ultra-micropores (< 0.5 nm) was synthesized for sodium-ion batteries via a molten diffusion–carbonization method. The ultra-micropores dominated carbon anode displays an enhanced capacity, which originates from the extra sodium-ion storage sites of the...