一种用于钠离子电池的具有优异循环稳定性和倍率性能的 P2 型 Na(NiCoMn)O 正极材料。
A P2-type Na(NiCoMn)O cathode with excellent cyclability and rate capability for sodium ion batteries.
机构信息
Department of Materials Science and Engineering and Research Institute of Advanced Materials, Seoul National University, Seoul 151-744, Republic of Korea.
出版信息
Chem Commun (Camb). 2019 Sep 24;55(77):11575-11578. doi: 10.1039/c9cc05550a.
PMID:31495863
Abstract
A new P2-type Na0.7(Ni0.6Co0.2Mn0.2)O2 was prepared via co-precipitation and its electrochemical properties as a cathode for sodium ion batteries were compared with those of O3-type Na(Ni0.6Co0.2Mn0.2)O2, focusing on phase stability and cycling performance. The P2-type delivered a high capacity of 108 mA h g-1 after 300 cycles at 2C.
摘要
一种新型的 P2 型 Na0.7(Ni0.6Co0.2Mn0.2)O2 通过共沉淀法制备，并将其作为钠离子电池正极的电化学性能与 O3 型 Na(Ni0.6Co0.2Mn0.2)O2 进行了比较，重点关注了相稳定性和循环性能。在 2C 下经过 300 次循环后，P2 型的容量高达 108 mA h g-1。
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