|
|
镍钴酸锂的空气气氛下高温固相合成
Study on Synthesis of LiNi0.7Co0.3O2 by High Temperature Solid Phase Method in Atmosphere
查看参考文献11篇
|
文摘
|
通过改进马弗炉结构，在空气气氛下合成了LiNi0.7Co0.3O2锂离子二次电池正极材料。利用XRD、SEM和循环充放电测试等手段，研究了材料结构与电化学性能之间的关系。实验电池以C／3的电流倍率在2．7-4．2V进行恒流充放电循环，电池首次充电比容量与放电比容量分别为181mAh／g和157mAh／g，库仑效率为86．7％。经过15次循环后，放电比容量趋于稳定，库仑效率保持在98％以上。循环40次，放电比容量为122mAh／g。 |
|
其他语种文摘
|
Using converting the air in muffle sufficiently, LiNio.7Coo.3O2 lithium-ion battery anode materials were synthesized by solid state reaction in air condition. The relationship between material structure and electrochemicat properties were characterized by means of X-ray diffraction (XRD), scanning electron microscope (SEM) and charge-discharge studies. The experiment cells were charged at constant current (C/3) to 4.2 V, after a rest period of 2 min, cells were discharged to 2.7 V at the same constant current (C/3). The specific charge and discharge capacity of the first circle are 181 mAh/g and 157 mAh/g, respectively. And its coulombic efficiency is 86.7%. After the fifteen cycle, the specific discharge capacity gets stably, and the coulombic efficiency of each cycle is over 98%, the specific discharge capacity retains 122 mAh/g in the fortieth cycle. |
|
来源
|
电子元件与材料
,2005,24(6):18-20 【扩展库】
|
|
关键词
|
无机非金属材料
;
锂离子电池
;
正极材料
;
锂镍钴氧化物
|
|
地址
|
中国科学院新疆理化技术研究所, 新疆, 乌鲁木齐, 830011
|
|
语种
|
中文 |
|
文献类型
|
研究性论文 |
|
ISSN
|
1001-2028 |
|
学科
|
电工技术 |
|
基金
|
新疆高技术研究发展计划项目
|
|
文献收藏号
|
CSCD:2102851
|
参考文献 共
11
共1页
|
|
1.
Periasamy P. Synthesis and charaction of LiNi0.
J Power Sources,2004,132:213-218
|
被引
8
次
|
|
|
|
|
2.
Delmas C. The cycling properties of the LixNi1-yCoyO2 electrode [J].
J Power Sources,1993,44:595-602
|
被引
11
次
|
|
|
|
|
3.
Gendron F. Magnetic and electronic properties of lithium cobalt oxide substituted by nickel [J].
J Solid State Ionics,2003,157:125-132
|
被引
1
次
|
|
|
|
|
4.
Gong Z L. Effects of preparation methods of LiNi0.
J Power Sources,2004,136:139-144
|
被引
20
次
|
|
|
|
|
5.
Carlier D. 7Li MAS NMR study of electrochemically deintercalated LixNi0.
J Mater Chem,2001(11):594-603
|
被引
1
次
|
|
|
|
|
6.
王素敏. 高性能LiNiO2制备方法研究 [J].
稀有金属,1999,23(5):353-356
|
被引
4
次
|
|
|
|
|
7.
郭炳昆. 锂离子电池 [M].
锂离子电池,2002:112-114
|
被引
1
次
|
|
|
|
|
8.
Reimers J N. Structure and electrochemistry of LixFeyNi1-yO2 [J].
Solid State Ionics,1993,61:335-344
|
被引
20
次
|
|
|
|
|
9.
Dahn J R. Structure and electrochemistry of Li1±yNiO2 and a new Li2NiO2 phase with the Ni(OH)2 structure [J].
Solid State Ionics,1990(4):87-91
|
被引
38
次
|
|
|
|
|
10.
吴宇平. 锂离子电池 [M].
锂离子电池,2004:143-143
|
被引
1
次
|
|
|
|
|
11.
Aydinol M K. Ab initio study of intercalation in metal oxides and metal dichalcogenides [J].
Phys Rev B,1997,56:1354-1365
|
被引
71
次
|
|
|
|
|
|
了解气象卫星更多信息，请访问