Low-temperature performance optimization of LiFePO4-based batteries

LiFePO 4 is one of the most widely used cathode materials for lithium-ion batteries, and the low-temperature performance of LiFePO 4 -based batteries has been widely studied in recent years. Herein, a 3.5 Ah pouch-type full battery was assembled using LiFePO 4 as the cathode and artificial graphite as the anode. For the LiFePO 4 -based cathode, carbon-coated aluminum foil was selected as the current collector, and a 0D–1D–2D multi-scale conductive network was introduced into the electrode. Notably, both the carbon-coated current collector and novel conductive network could significantly reduce the internal resistance of the LiFePO 4 -based battery, thus improving its electrochemical dynamics and low-temperature performance. This paper provides a theoretical basis for the development of low-temperature LiFePO 4 -based batteries.