Li0.98Ni0.7Ti0.3O1.92 cathode materials fabricated by thermal synthesis of Ni/Li/Tini film
Li0.98Ni0.7Ti0.3O1.92 (LNTO) cathode material for Li ion batteries was thermally synthesized using Ni/Li/TiNi film and Li/TiNi film. Structural and electrochemical properties of the synthesized electrodes were investigated by means of x-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM) and galvanostatic charge-discharge half-cell test. A large amount of LNTO was synthesized in a Ni/Li/TiNi system compared to a Li/TiNi system, and the Ni film in the Ni/Li/TiNi system restrained Li leakage during thermal synthesis at high temperature. The surface of the annealed Ni/Li/TiNi film consisted of a peel-off layer part (Li2O2) and an exposed surface part (LNTO). A cell with LNTO electrode synthesized in the Ni/Li/TiNi system showed 103mAhcm-2 initial discharge capacity and 83% of capacity retention after 10 cycles.
Gyu-Bong Cho Min-Gan Song Hee-Jin Choi Kwon-Koo Cho Tae-Hyun Nam Ki-Won Kim Chi-Woo Lee Young-Joon Yang
i-Cube Center, ITRC for Energy Storage and Conversion, Gyeongsang National University, 900 Gazwadong Department of Automotive Engineering, Jinju National University, 150 Chilamdong, Jinju, Gyeongnam, 6
国际会议
第二届功能原料国际研讨会(The 2rd International Symposium on Functional Materials)
杭州
英文
218-221
2007-05-16(万方平台首次上网日期,不代表论文的发表时间)