磷酸铁锂及三元电池在不同领域的应用

Application of LFP and NCM batteries in different fields

在化学类储能技术中,锂离子电池在市场和政策的双驱动下成为当前的研究热点。磷酸铁锂(LFP)和三元镍钴锰酸锂材料(NCM)是目前锂离子电池应用最多的正极材料。两种材料制备的电池各有特点:例如,磷酸铁锂电池具有循环寿命长、成本低及安全性好,但是能量密度也相对偏低;而三元电池能量密度较高,但是循环和安全性差于磷酸铁锂电池,成本也相对较高。由于这两种电池自身的特点,也决定了它们的应用领域不同。对两种锂离子电池在不同领域的应用进行了概述,综合分析表明短时间内两种电池将并行发展,不会出现一种电池完全取代另一种的情况。

During the chemical energy storage technology,lithium ion battery has become a research hotspot because of the dual drive of market and policy.Lithium iron phosphate(LFP)and layered LiNixCoyMn1-x-yO2(NCM)materials are the most widely used cathode materials in lithium ion batteries nowadays.Lithium ion batteries made of these two materials have their own characteristics:for example,LFP battery has long cycle life,low cost and good safety performance,but its energy density is relatively low;while NCM battery has high energy density,but its cycle performance and safety are not as good as LFP battery,and its cost is relatively high.Because of the characteristics of these two kinds of batteries,their application fields are different.In this paper,the application of two kinds of Li-ion batteries in different fields was discussed.The comprehensive analysis shows that LFP battery will develop parallel with NCM battery in a short time,and one can not completely replace the other.