Related Experiment Video
Updated: Nov 18, 2025
08:18
Protocol of Electrochemical Test and Characterization of Aprotic Li-O2 Battery
Published on: July 12, 2016
11.8K
Oxygen-Functionalized Polyacrylonitrile Nanofibers with Enhanced Performance for Lithium-Ion Storage
Fangqing Jiang1, Xiaolei Wang1, Xiaoyun Fan2
1College of Chemistry, Nanchang University, Nanchang 330031, China.
ACS Omega
|February 8, 2021
Summary
Porous polyacrylonitrile (PAN) nanofibers annealed in air show enhanced lithium-ion storage. This functionalization and porous structure improve capacity, rate capability, and battery life.
Area of Science:
- Materials Science
- Electrochemistry
- Polymer Chemistry
Background:
- Organic polymers offer potential for lithium-ion energy storage.
- Functionalization and morphological control are key to improving polymer performance.
Purpose of the Study:
- To enhance lithium-ion storage performance of polyacrylonitrile (PAN) nanofibers.
- To investigate the effect of annealing atmosphere on PAN nanofiber performance.
Main Methods:
- Template-assisted electrospinning to create porous PAN nanofibers.
- Thermal treatment (annealing) in different atmospheres (air, N2).
- Characterization of material properties and electrochemical performance.
Main Results:
- Air-annealed PAN nanofibers exhibited superior lithium-ion storage capacities, rate capabilities, and cycle stability compared to N2-treated counterparts and PAN powders.
- Oxygen-based functionalities (C=O groups) were enriched in air-annealed samples, contributing to high specific capacity.
- The porous structure facilitated Li+ and electron transport, enhancing rate performance.
Conclusions:
- Annealing atmosphere significantly impacts the lithium-ion storage behavior of PAN nanofibers.
- Porous PAN nanofibers functionalized with oxygen-containing groups via air annealing are promising organic electrode materials for advanced lithium-ion batteries.
