Safety is an important factor affecting the performance of lithium-ion batteries, and semi-solid battery technology is currently an effective way to improve battery safety performance and energy density. Based on testing under four abuse conditions, namely overcharging, external short circuit, nail penetration and high-temperature heating, this article analyses the thermal stability and thermal runaway data of semi-solid lithium iron phosphate batteries, and analyses the risk characteristics of semi-solid lithium iron phosphate batteries under abuse conditions. The research results show that semi-solid lithium iron phosphate batteries have higher overcharge voltage resistance, lower internal short-circuit temperature rise and voltage drop, and higher thermal runaway temperature. The research results provide a data reference and schematic basis for the integrated design of semi-solid lithium iron phosphate batteries.