Publication Type
Journal
Journal Name
MRS Communications
Publication Date
Page Numbers
255 to 264
Volume
15
Issue
2
Abstract
Pulsed laser annealing of LiFePO4 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 LiFePO4 region is treated by pulsed laser annealing. Pulsed laser annealing has two primary effects on the atomic structure of LiFePO4, namely an increase in anionic vacancy concentration and antisite defect concentration.
