Self-assembled LiFePO4 nanowires with high rate capability for Li-ion batteries

Abstract

Controlling the dimensions in the nanometer scale of olivine-type LiFePO₄ has been regarded as one of the most effective strategies to improve its electrochemical performance for Li-ion batteries. In this communication, we demonstrate a novel LiFePO₄ nanoarchitecture, which is composed of self-assembled single-crystalline nanowires and exhibits good rate capability with a reversible capacity of ∼110 mA h g⁻¹ at a current rate of 30 C, and a stable capacity retention of ∼86% after 1000 cycles at a current rate of 10 C.