Work

MIL-101 derived VOPO4/C nanocomposite as high energy density cathode for lithium ion batteries

Year: 2025

Type: article

Abstract: VOPO 4 is a potential cathode candidate in lithium-ion batteries owing to its layered structure to attain a high capacity for large scale applications. However, the reported efforts could only manage to achieve a moderate capacity. Here, we report a simplified strategy to synthesize an anhydrous α I -VOPO 4 polymorph in the form of nanoflakes with nanoporous carbon in the form of a nanocomposite cathode for a 3.8 V lithium-ion battery offering a high specific capacity of 158.5 mAh g −1 . Electrochemical analysis suggests a highly efficient cathode performance derived from a large plateau at 3.7 V vs Li/Li + resulting in an energy density of 591.21 Wh/kg. The layered VOPO 4 /C based cathode offered a smooth intercalation/extraction of Li + to maintain a stable structure over long-term cycling, resulting in an overall 87.7 % capacity retention after 100 cycles and an excellent rate capability. The promising electrochemical performance results from the synergistic effect of excellent conductivity of nanoporous carbon embedded with the uniform dispersion of kinetically active VOPO 4 nanoflakes.

Source: Journal of Power Sources

DOI: 10.1016/j.jpowsour.2025.238389

Authors: Rimsha Mehek, Naseem Iqbal, Tayyaba Noor, Wei Liu, Muhammad Abdullah Khan

Institutions: King Fahd University of Petroleum and Minerals, National University of Sciences and Technology, Sichuan University, Quaid-i-Azam University

Language: English

Topic: Advancements in Battery Materials

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

SDG: Affordable and clean energy

Open Access status: hybrid

Estimated APC paid: $4,230