Work

Enhancement of the electrochemical performance of LiFePO4 cathode material by nanosecond laser annealing

Year: 2025

Type: article

Abstract: Pulsed laser annealing of LiFePO 4 can improve conductivity by increasing oxygen vacancy-related defect concentration; this approach can improve the current carrying capacity of LIB cathodes from 135 to 145 mAh g −1 under optimized conditions. Since the depth of the laser annealing region is less than 1 µm, the increase is equivalent to a 125% overall improvement in the charge capacity if the entire thickness of the LiFePO 4 region is treated by pulsed laser annealing. Pulsed laser annealing has two primary effects on the atomic structure of LiFePO 4 , namely an increase in anionic vacancy concentration and antisite defect concentration. Graphical Abstract

Source: MRS Communications

DOI: 10.1557/s43579-025-00701-4

Authors: S. S. Sahoo, J. Narayan, R. J. Narayan, Xiao-Guang Sun, Mariappan Parans Paranthaman

Institutions: North Carolina State University, Oak Ridge National Laboratory

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: $3,390