电源技术2025，Vol.49Issue(6)：1168-1174,7.DOI:10.3969/j.issn.1002-087X.2025.06.011
LiMn0.6Fe0.4PO4掺混对三元电池电性能和安全性的影响研究
Effect of LiMn0.6Fe0.4PO4 blending on performance and safety of NCM batteries
摘要
Abstract
The lithium iron manganese phosphate(LMFP)batteries exhibit high volumetric energy den-sity,high safety and low cost,thereby gaining an increasing market share.The cathode system blending LMFP and NCM enhances safety performance and reduces costs while maintaining a high operating voltage(cut-off voltage of 4.4 V)and high volumetric energy density(ranging from 495 to 628 Wh/L).The high-voltage cathode systems were prepared by blending various proportions of LMFP into single-crystal 6-series NCM materials.The impact of LMFP doping on the electrical properties,cycling stabil-ity,safety performance,and cost of the cathode system was comprehensively evaluated.The final prod-uct demonstrates excellent cycling performance(the capacity retention exceeding 95%after 300 cycles at 0.5 C and room temperature),superior safety characteristics(no thermal runaway or explosion during needle penetration tests),high volumetric energy density(570 Wh/L),and low manufacturing cost(0.23 yuan/Wh).关键词
磷酸锰铁锂/镍钴锰酸锂/掺混比例/高电压/安全Key words
LMFP/NCM/blending ratio/high voltage/safety分类
信息技术与安全科学引用本文复制引用
王含冰,雷博毅,潘庆瑞,许建峰,孙鹤,杨育圣..LiMn0.6Fe0.4PO4掺混对三元电池电性能和安全性的影响研究[J].电源技术,2025,49(6):1168-1174,7.基金项目
中央引导地方科技发展资金项目(2023ZY0011) （2023ZY0011）
内蒙古自治区自然科学基金面上项目(2024MS03066) （2024MS03066）
内蒙古自治区高等学校碳达峰碳中和研究专项(STZX202303) （STZX202303）
