Corresponding Author

Xing-kang HUANG(xkhuang@126.com);
Yong YANG(yyang@xmu.edu.cn)


The Al-doped and Mg-doped LiCoMnO4 materials were synthesized through solid-state reaction. The effects of doping amounts of Mg and Al on the initial capacities, discharge plateaus, and cycle performances were investigated. The morphologies and structures of the as-prepared materials were studied by scanning electron microscopy and powder X-ray diffraction. The results indicate that the as-prepared samples were composed of uniform, well-crystallized particles. The pristine LiCoMnO4 possessed an initial capacity of 87.0 mAh·g-1, while LiCo0.98Mg0.02MnO4 and LiCo0.98Al0.02MnO4 delivered 91.3 and 93.6 mAh·g-1, respectively. The proper doping amount increased the capacity and the ratio of discharge plateau at 5 V, while over-doping decreased the discharge capacity of LiCoMnO4. In addition, Al doping significantly improved the cycle performance of LiCoMnO4, while no apparent influence with Mg doping.

Graphical Abstract


solid state reaction, spinel LiCoMnO4, Mg-doped, Al-doped, lithium-ion battery, cathode material

Publication Date


Online Available Date


Revised Date


Received Date



Zhecheva E, Stoyanova R, Alcantara R, et al. EPR studies of Li deintercalation from LiCoMnO4 spinel-type electrode active material[J]. Journal of Power Sources, 2006, 159(2): 1389-1394.
Huang X K, Lin M, Tong Q S, et al. Synthesis of LiCoMnO4 via a sol-gel method and its application in high power LiCoMnO4/Li4Ti5O12 lithium-ion batteries[J]. Journal of Power Sources, 2012, 202: 352-356.
Zhang R G(张仁刚), Zhao S X(赵世玺), Xia J L(夏君磊), et al. Study on modification of spinel LiMn2O4 by overcoating[J]. Journal of Electrochemistry (电化学), 2002, 8(3): 269-274.
Zhou D Q(周大桥). Preparation and performance of Co and La Co-doped Li-rich lithium Manganate[J]. Journal of Electrochemistry(电化学), 2009, 15(1): 74-78.
Pasero D, de Souza S, Reeves N, et al. Oxygen content and electrochemical activity of LiCoMnO4-δ[J]. Journal of Materials Chemistry, 2005, 15(41): 4435-4440.
Strobel P,Tillier J, Diaz A, et al. Search for new manganese-cobalt oxides as positive electrode materials for lithium batteries[J]. Journal of Power Sources, 2007, 174(2): 910-915.
Mandal S, Rojas R M, Amarilla J M, et al. High temperature Co-doped LiMn2O4-based spinels. Structural, electrical, and electrochemical characterization[J]. Chemistry of Materials, 2002, 14(4): 1598-1605.
Ohzuku T, Takeda S, Iwanaga M. Solid-state redox potentials for Li[Me1/2Mn3/2]O4 (Me:3d-transition metal) having spinel-framework structures: a series of 5 volt materials for advanced lithium-ion batteries[J]. Journal of Power Sources, 1999, 81: 90-94.
Zhecheva E, Stoyanova R. Effect of allied and alien ions on the EPR spectrum of Mn-containing lithium-manganese spinel oxides [J]. Solid State Communications, 2005, 135(7): 405-410.
Kawai H, Nagata M, Tukamoto H, et al. A new lithium cathode LiCoMnO4: Toward practical 5 V lithium batteries[J]. Electrochemical and Solid-State Letters, 1998, 1(5): 212-214.
Stoyanova R K, Zhecheva E N, Gorova M Y. EPR evidence on short-range Co-Mn order in LiCoMnO4 spinels[J]. Journal of Materials Chemistry, 2000, 10: 1377-1381.
Zhecheva E, Stoyanova R, Gorova M, et al. Co/Mn distribution and electrochemical intercalation of Li into Li[Mn2-yCoy]O4 spinels, 0< y< 1[J]. Solid State Ionics, 2001(1/2), 140:19-33.
Amdouni N, Gendron F, Mauger A, et al. LiMn2-yCoyO4 (0 ≤ y ≤ 1) intercalation compounds synthesized from wet-chemical route[J]. Materials Science and Engineering: B, 2006, 129(1/3): 64-75.
Kawai H, Nagata M, Tukamotob H, et al. A novel cathode Li2CoMn3O8 for lithium ion batteries operating over 5 volts[J]. Journal of Materials Chemistry Communication, 1998, 8(4):837-839.
Rojas R M, Amarilla J M, Pascual, L, et al. Combustion synthesis of nanocrystalline LiNiYCo1-2YMn1+YO4 spinels for 5V cathode materials[J]. Journal of Power Sources, 2006, 160(1): 529-535.
Alcantara R, Jaraba M, Lavela P, et al. Electrochemical, 6Li MAS NMR, and X-ray and neutron diffraction study of LiCoxFeyMn2-(x+y)O4 spinel oxides for high-voltage cathode materials[J]. Chemical Materials, 2003, 15(12): 1210-1216.
Lin Y(林永), Zhao K(赵锟), Wang M L(王曼丽). Study on synthesis of spinel-LiMn2O4 nanoparticles and its electrochemical impedance spectroscopies[J]. Chemical Research and Application(化学研究与应用), 2011, 23(8): 975-979.



To view the content in your browser, please download Adobe Reader or, alternately,
you may Download the file to your hard drive.

NOTE: The latest versions of Adobe Reader do not support viewing PDF files within Firefox on Mac OS and if you are using a modern (Intel) Mac, there is no official plugin for viewing PDF files within the browser window.