The SCI-E papers in the field of lithium iron phosphate (LiFePO4, LFP) battery materials were sorted out and analyzed in this article from bibliometric analysis perspective. Using CiteSpace6 tool, based on SCI-E database, the highlight word time zone map and keyword clustering visualization knowledge map of LFP battery materials were constructed, simultaneously exploring the knowledge evolution and visualization development trend of LFP battery materials. Through LFP battery materials highlight word time zone map, the knowledge evolution path of LFP battery materials extends from preparation method to the performance research in application field, and finally to the recycling of spent LFP battery materials. According to keyword clustering visualization knowledge map, the development trend was obtained. The representative development trends of LFP battery materials involve power battery performance improvement technology, spent battery recycling and battery online thermal runaway management.