为了同时改善固相共沉积法合成的α-Ni0.8Co0.05Al0.15(OH)2.15-2y(CO3)y·xH2O的常、高温充放电性能,样品经混合掺杂不同比率的La2O3,Sm2O3,Y2O3,Lu2O3以及La2O3+Y2O3后,作为模拟MH/Ni电池的正极材料,在不同温度下由恒流充放电和循环伏安测定其电化学性能.结果表明:复合掺加0.5%La2O3+1.0%Y2O3(质量分数),在0.5C和5C充放电下,30℃时可分别提高样品的放电比容量3.3%和4.7%,60℃时可分别提高17.4%和19.9%.同时也改善了高温放电电位.
参考文献
| [1] | Singh D. .Characteristics and effects of gamma-NiOOH on cell performance and a method to quantify it in nickel electrodes[J].Journal of the Electrochemical Society,1998(1):116-120. |
| [2] | Kamath P V;Dixit M;Indira M .Stabaigod α-Ni(OH)2 as electrode material for Alkaline secondary cells[J].Journal of the Electrochemical Society,1994,141(11):2956. |
| [3] | 庄玉贵,林东风,陈秀宇.掺铝、钴纳米α-Ni（OH）2的固相合成及电化学性能研究[J].无机化学学报,2009(08):1336-1341. |
| [4] | WANG Hong,TANG Zhi-yuan,LIU Yuan-gang,LEE Chang-sheng.Synthesis and behavior of Al-stabilized α-Ni(OH)2[J].中国有色金属学会会刊（英文版）,2009(01):170-175. |
| [5] | 庄玉贵,林东风,杨吉满,陈秀宇.体相掺钇、铝的α-Ni（OH）2的固相合成和高温电化性能[J].中国稀土学报,2008(05):577-583. |
| [6] | 季益刚,周益明,邵阳,唐亚文,陆天虹,沈涛.铝钴复合掺杂的氢氧化镍的制备及其电性能[J].应用化学,2006(12):1309-1312. |
| [7] | Masahiko Oshitani;Masaharu Watada;Kaori Shodai;Mitsuhiro Kodama .Effect of Lanthanide Oxide Additives on the High-Temperature Charge Acceptance Characteristics of Pasted Nickel Electrodes[J].Journal of the Electrochemical Society,2001(1):A67-A73. |
| [8] | Mix;Gao X P;Jiang CY .High temperature performances of yttrium-doped spherical nickel hydroxide[J].Electrochem Act,2004,49:3361. |
| [9] | 米欣,叶茂,阎杰,魏进平,高学平.外掺Y2O3对镍氢电池正极高温性能的影响[J].中国稀土学报,2004(01):119-124. |
| [10] | Ben Junxia;Zhou Zhen;Gao Xueping .Preparation of porous spherical α-Ni(OH)2 and enhancement of high-temperature electrochemical performances through yttrium addition[J].Electrochina Acta,2006,52(03):1120. |
| [11] | 任俊霞,王小建,李宇展,高学平,阎杰.Lu2O3对球形Ni（OH）2高温充放电性能的影响[J].中国稀土学报,2005(02):195-199. |
| [12] | 简旭宇,成艳,朱磊,陈晖,王忠,尉海军,蒋利军.高温镍氢动力电池用镍电极的研究[C].第二届中国储能与动力电池及其关键材料学术研讨会与技术交流会论文汇编,2007:195-200. |
| [13] | 樊晓光,吴伯荣,朱磊,简旭宇,陈晖.复合添加Lu2O3和Er2O3对镍氢电池Ni（OH）2正极高温性能的影响[J].稀有金属,2007(01):81-85. |
| [14] | 于涛,翟玉春,阎永恒,周时国.镍电极掺杂[x（Y2O3）+y（Er2O3）]的MH/Ni电池性能研究[J].稀土,2006(05):20-23. |
| [15] | 吴华斌,刘长久,孙丹.镧（Ⅲ）与锌（Ⅱ）复合掺杂非晶Ni（OH）2的电化学性能[J].稀有金属,2008(02):203-206. |
| [16] | Cha C S;Li C M;Yang H X .Powder microelectrodes[J].Journal of Electroanalytical Chemistry,1994,368:47. |
| [17] | 范晶,杨毅夫,余鹏,陈卫华,邵惠霞.包覆Y（OH）3 的球形Ni（OH）2 的电化学性能[J].高等学校化学学报,2007(11):2124-2127. |
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