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层状Li(Ni_1-xCo_x)O₂结构研究

Study on LiNi_1-xCo_xO₂ Structure

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【Author】 GU Yi-Jie*,1,2 WU Hui-Kang2 MA Xiang-Yang3 ZHOU Heng-Hui4 WEI Qing4 CHANG Wen-Bao4(1College of Materials Science and Engineering, Shandong University of Science and Technology, Qingdao, Shandong 266510)(2New Energy Materials R&D Centre, Qingdao Aucma Co., Ltd. and Shandong University of Science and Engineering. Qingdao, Shandong 266510)(3Datong Cement Co., Ltd., Datong, Shanxi 037044)(4College of Chemistry and Molecular Engineering, Peking University, Beijing 100871)

【机构】山东科技大学材料学院；青岛澳柯玛集团有限公司与山东科技大学新能源材料研发中心青岛266510；青岛澳柯玛集团有限公司与山东科技大学新能源材料研发中心；大同水泥有限公司；北京大学化学与分子工程学院；青岛266510；大同037044；北京100871；

【Abstract】 LiNi1-xCoxO2 with x=0.1, 0.2, 0.3, 0.5 and 1 were prepared by co-precipitation of mixed solution of Ni- and Co-salt in NaOH. The structure of LiNi1-xCoxO2 was analyzed by XRD. The results show that the unit cell constants a and c decrease as the Co content increases. Although the change of unit cell constants can reflect the substitution of Co ions with Ni ions in the lab, the splits of the pairs of (006), (102) and (108), (110) in the XRD pattern can not reflect the presence of Ni2+ in the lithium site.更多还原