Control of electrochemical properties of nickel-rich layered cathode materials for lithium ion batteries by variation of the manganese to cobalt ratio

作者: Ho-Hyun Sun , Wonchang Choi , Joong Kee Lee , In-Hwan Oh , Hun-Gi Jung

DOI: 10.1016/J.JPOWSOUR.2014.11.075

关键词:

摘要: Various Ni-rich layered oxide cathodes (above 0.80 Ni content), such as LiNi1� yzCoyAlzO2 (NCA), are used in electric vehicles (EVs) due to their high capacity (~200 mAh g � 1 for NCA). However, improve cycle performance and thermal stability ensure longer safer usage, numerous studies have investigated surface modification, coating, doping of cathode materials. In this study, we the characteristics Li(Ni0.85CoxMn0.15� x)O2 with various Mn Co ratios (x ¼ 0e0.15) synthesized by a coprecipitation method. The discharge capacities cath- odes similar at around 206 room temperature 213.8 55

参考文章(37)
K.-S. Lee, S.-T. Myung, K. Amine, H. Yashiro, Y.-K. Sun, Structural and Electrochemical Properties of Layered Li [ Ni1 − 2x Co x Mn x ] O2 ( x = 0.1 – 0.3 ) Positive Electrode Materials for Li-Ion Batteries Journal of The Electrochemical Society. ,vol. 154, ,(2007) , 10.1149/1.2769831
A Rougier, P Gravereau, C Delmas, None, Optimization of the Composition of the Li1 − z Ni1 + z O 2 Electrode Materials: Structural, Magnetic, and Electrochemical Studies Journal of The Electrochemical Society. ,vol. 143, pp. 1168- 1175 ,(1996) , 10.1149/1.1836614
Hajime Arai, Shigeto Okada, Yoji Sakurai, Jun-ichi Yamaki, Thermal behavior of Li1-yNiO2 and the decomposition mechanism Solid State Ionics. ,vol. 109, pp. 295- 302 ,(1998) , 10.1016/S0167-2738(98)00075-7
Seung-Taek Myung, Atsushi Ogata, Ki-Soo Lee, Shinichi Komaba, Yang-Kook Sun, Hitoshi Yashiro, Structural, Electrochemical, and Thermal Aspects of Li [ ( Ni0.5Mn0.5 ) 1 − x Co x ] O2 ( 0 ≤ x ≤ 0.2 ) for High-Voltage Application of Lithium-Ion Secondary Batteries Journal of The Electrochemical Society. ,vol. 155, ,(2008) , 10.1149/1.2883733
Yoon-Soo Park, Kwan-Ho Choi, Hong-Kyu Park, Sung-Man Lee, Effects of LiPON Thin-Film Coating on Thermal Behavior of Delithiated Li1 − x ( Ni0.53Co0.2Mn0.27 ) O2 Cathode Journal of The Electrochemical Society. ,vol. 157, ,(2010) , 10.1149/1.3430090
Jiangang Li, Li Wang, Qian Zhang, Xiangming He, Synthesis and characterization of LiNi0.6Mn0.4―xCoxO2 as cathode materials for Li-ion batteries Journal of Power Sources. ,vol. 189, pp. 28- 33 ,(2009) , 10.1016/J.JPOWSOUR.2008.12.046
S Madhavi, G.V Subba Rao, B.V.R Chowdari, S.F.Y Li, Effect of aluminium doping on cathodic behaviour of LiNi0.7Co0.3O2 Journal of Power Sources. ,vol. 93, pp. 156- 162 ,(2001) , 10.1016/S0378-7753(00)00559-0
M Balasubramanian, X Sun, X.Q Yang, J McBreen, In situ X-ray diffraction and X-ray absorption studies of high-rate lithium-ion batteries Journal of Power Sources. ,vol. 92, pp. 1- 8 ,(2001) , 10.1016/S0378-7753(00)00493-6
Bruno Scrosati, Jürgen Garche, Lithium batteries: Status, prospects and future Journal of Power Sources. ,vol. 195, pp. 2419- 2430 ,(2010) , 10.1016/J.JPOWSOUR.2009.11.048