Fabrication of a LiNiMnTiMgNbMoO cathode for low-cost long-life lithium-ion batteries

• Published in: Chemical communications (Cambridge, England) Vol. 59; no. 4; pp. 612 - 615
• Main Authors: Qiu, Kangwen, Bai, Liuyang, Song, Jun, Ouyang, Yuge, Cheng, Jinbing, Luo, Yongsong
• Format: Journal Article
• Published: 16.05.2023
• ISSN: 1359-7345; 1364-548X
• DOI: 10.1039/d3cc01169k

The high price of Co and Ni restricts the development of the lithium-ion battery industry. Reducing the Ni content and eliminating Co is an effective way to lower the cost. In this work, we eliminate the Co in NCM523 cathodes by using a complex concentrated doping strategy. LiNi 0.5 Mn 0.4 Ti 0.03 Mg 0.03 Nb 0.01 Mo 0.03 O 2 shows an unparalleled cost advantage with relatively high specific energy (>720 W h kg −1 ) and significantly improved overall performance (96% capacity retained after 1000 cycles). This report offers an important pathway to fabricate cathode materials for low-cost and long-life LIBs. In this work, a low-cost Co-free LiNi 0.5 Mn 0.4 Ti 0.03 Mg 0.03 Nb 0.01 Mo 0.03 O 2 (NCM504) cathode was synthesized by a complex concentrated doping strategy with excellent structural stability for long-life lithium-ion batteries.