超级交换
反铁磁性
离子
锂(药物)
过渡金属
材料科学
阴极
结晶学
化学
凝聚态物理
物理
物理化学
生物化学
医学
内分泌学
催化作用
有机化学
作者
Yimeng Liu,Ying Gu,Hua Chun Zeng,Jiaxin Zheng,Feng Pan
标识
DOI:10.1021/acs.jpcc.9b04003
摘要
Due to excellent safety and charge–discharge performances of LiFePO4 (LFP), it has been widely studied as an important cathode material for lithium-ion batteries. The introduction of Mn ions to LFP materials to increase the voltage and energy storage is a hot topic that has attracted widespread attention. Our study focused on calculating the transition metal (TM) ion arrangement in LiMn1–xFexPO4 (LMFP). Superexchange interactions were observed to affect the TM structure sequence and magnetic structure in LMFP, indicating that Mn ions tend to have a specific clustering arrangement in the TM layer that is bridged by shared O ions. The overall magnetic structure is antiferromagnetic.
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