Synthesis and electrochemical properties of LiNi0.80(Co0.20-xAlx)O2 (x=0.0 and 0.05) cathodes for Li ion rechargeable batteries
Synthesis and electrochemical properties of LiNi0.80(Co0.20-xAlx)O2 (x=0.0 and 0.05) cathodes for Li ion rechargeable batteries
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DOI：
10.1016/j.jpowsour.2005.03.186
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发表时间：
2006-03-09
影响因子：
9.2
通讯作者：
Katiyar, RS
中科院分区：
文献类型：
--
作者：
Majumder, SB;Nieto, S;Katiyar, RS
研究了钴和铝同时掺杂对溶液衍生的锂镍氧化物正极材料的相形成行为和电化学性能的影响。在4.3-3.2 V的截止电压范围内，在0.45 mA cm（-2）的恒定电流密度下测量的LiNi 0.80 Co 0.20 O2和LiNi 0.80 Co 0.15 Al 0.05 O2阴极的放电容量分别为100和136 mAh g（-1）。LiNi_（0.80）Co_（0.15）Al_（0.05）O_2具有比LiNi_（0.80）Co_（0.20）O_2更好的循环性能。在LiNi0.80Co0.20O2和LiNi0.80Co0.15Al0.05O2阴极中保留不期望的Li 2CO 3相被认为是这些材料相对较低的放电容量的原因。(c)2006年由Elsevier B. V.出版
The effect of simultaneous cobalt as well as aluminum doping was studied to understand their effect on the phase formation behavior and electrochemical properties of solution derived lithium nickel oxide cathode materials for rechargeable batteries. The discharge capacities of LiNi0.80Co0.20O2, and LiNi0.80Co0.15Al0.05O2 cathodes, measured at constant current densities of 0.45 mA cm(-2) in the cut-off voltage range of 4.3-3.2 V, were 100 and 136 mAh g(-1), respectively. LiNi0.80Co0.15Al0.05O2 had better cycleability than the LiNi0.80Co0.20O2, cathodes. The retention of undesirable Li2CO3 phase both in LiNi0.80Co0.20O2 and LiNi0.80Co0.15Al0.05O2, cathodes was argued to be responsible for the relatively lower discharge capacity of these materials. (c) 2006 Published by Elsevier B.V.