Korean Journal of Materials Research, Vol.28, No.5, 273-278, May, 2018
칼슘 도핑을 통한 고 에너지 밀도를 가지는 Ni-rich 층상 구조형 양극 소재의 안정화
Stabilization of Nickel-Rich Layered Cathode Materials of High Energy Density by Ca Doping
E-mail:
Lithium-ion batteries have been considered the most important devices to power mobile or small-sized devices due to their high energy density. LixCoO2 has been studied as a cathode material for the Li-ion battery. However, the limitation of its capacity impedes the development of high capacity cathode materials with Ni, Mn, etc. in them. The substitution of Mn and Ni for Co leads to the formation of solid solution phase LiNixMnyCo1-x-yO2 (NMC, both x and y < 1), which shows better battery performance than unsubstituted LiCoO2. However, despite a high discharge capacity in the Ni-rich compound (Ni > 0.8 in the metal site), poor cycle retention capability still remains to be overcome. In this study, aiming to improve the stability of the physical and chemical bonding, we investigate the stabilization effect of Ca in the Ni-rich layered compound Li(Ni0.83Co0.12Mn0.05)O2, and then Ca is added to the modified secondary particles to lower the degree of cationic mixing of the final particles. For the optimization of the final grains added with Ca, the Ca content (x = 0, 2.5, 5.0, 10.0 at.%) versus Li is analyzed.
- Lee MH, Kang Y, Myung ST, Sun YK, Electrochim. Acta, 50(4), 939 (2004)
- Noh HJ, Youn S, Yoon CS, Sun YK, J. Power Sources, 233, 121 (2013)
- Li LJ, Li XH, Wang ZX, Wu L, Zheng JC, Li JH, Trans. Nonferrous Met. Soc. China, 20, S279 (2010)
- Zheng JM, Kan WH, Manthiram A, ACS Appl. Mater. Interfaces, 7, 6926 (2015)
- Liu W, Oh P, Liu X, Lee MJ, Cho W, Chae S, Kim Y, Cho J, Angew. Chem.-Int. Edit., 54, 4440 (2015)
- Myung ST, Maglia F, Park KJ, Yoon CS, Lamp P, Kim SJ, Sun YK, ACS Energy Lett., 2, 196 (2017)
- Park KJ, Lim BB, Choi MH, Jung HG, Sun YK, Haro M, Vicente N, Bisquert J, Garcia-Belmonte G, J. Mater. Chem. A, 3, 22183 (2015)
- Lim BB, Myung ST, Yoon CS, Sun YK, ACS Energy Lett., 1, 283 (2016)
- Woo SW, Myung ST, Bang H, Kim DW, Sun YK, Electrochim. Acta, 54(15), 3851 (2009)
- Amine K, Chen Z, Zhang Z, Liu J, Lu W, Qin Y, Lu J, Curtis L, Sun YK, J. Mater. Chem., 21, 17754 (2011)
- Cho Y, Oh P, Cho J, Nano Lett., 13, 1145 (2013)
- Kim MH, Shin HS, Shin D, Sun YK, J. Power Sources, 159(2), 1328 (2006)
- Huang Y, Wang ZX, Li XH, Guo HJ, Wang JX, Trans. Nonferrous Met. Soc. China, 25, 2253 (2015)
- Wang DP, Belharouak I, Zhou GW, Amine K, J. Electrochem. Soc., 160(5), A3108 (2013)
- Schipper F, Erickson EM, Erk C, Shin JY, Chesneau FF, Aurbach D, J. Electrochem. Soc., 164(1), A6220 (2017)
- Zheng JM, Gu M, Xiao J, Zuo PJ, Wang CM, Zhang JG, Nano Lett., 13, 3824 (2013)
- Bommel AV, Dahn JR, Chem. Mater., 21, 1500 (2009)
- Park K, Park JH, Hong SG, Choi B, Heo S, Seo SW, Min K, Park JH, Sci. Rep., 7, 44557 (2017)
- Jung SK, Gwon H, Hong J, Park KY, Seo DH, Kim H, Hyun J, Yang W, Kang K, Adv. Energy Mater., 4, 130078 (2014)
- Manthiram A, Knight JC, Myung ST, Oh SM, Sun YK, Adv. Energy Mater., 6, 150101 (2016)
- Sun YK, Lee BR, Noh HJ, Wu H, Myung ST, Amine K, J. Mater. Chem., 21, 10108 (2011)
- Liao JY, Manthiram A, J. Power Sources, 282, 429 (2015)
- Cho W, Kim SM, Song JH, Yim T, Woo SG, Lee KW, Kim JS, Kim YJ, J. Power Sources, 282, 45 (2015)
- Wang CW, Ma XL, Cheng JG, Zhou LQ, Sun JT, Zhou YH, Solid State Ion., 177(11-12), 1027 (2006)
- Lin F, Markus IM, Nordlund D, Weng TC, Asta MD, Xin HL, Doeff MM, Nat. Commun., 5, 3529 (2014)
- Xie HB, Du K, Hu GR, Duan JG, Peng ZD, Zhang ZJ, Cao YB, J. Mater. Chem. A, 3, 20236 (2015)
- Kang D, Arailym N, Chae JE, Kim SS, J. Korean Electrochem. Soc., 16, 191 (2013)
- Cheralathan KK, Kang NY, Park HS, Lee YJ, Choi WC, Ko YS, Park YK, J. Power Sources, 195(5), 1486 (2010)
- Deng C, Zhang S, Fu BL, Yang SY, Ma L, J. Alloy. Compd., 496, 521 (2010)