| 高镍系Li[(Ni0.88Co0.12)0.90(Ni0.80Co0.15Al0.05)0.10]O2正极材料的制备研究 |
| |
| 引用本文： | 郭宇,黄玲,肖方明,王英,唐仁衡. 高镍系Li[(Ni0.88Co0.12)0.90(Ni0.80Co0.15Al0.05)0.10]O2正极材料的制备研究[J]. 电源技术, 2020, 0(1): 13-16,65 |
| |
| 作者姓名： | 郭宇 黄玲 肖方明 王英 唐仁衡 |
| |
| 作者单位： | 广东工业大学材料与能源学院广东省先进储能材料重点实验室;广东省稀有金属研究所广东省稀土开发及应用重点实验室 |
| |
| 基金项目： | 广东省科学院项目(2019GDASYL-0105057);广州市科技计划项目(201907010009);广东省科技计划项目(20178030314081,2015B010116002) |
| |
| 摘 要： | 采用共沉淀法合成Li[(Ni0.88Co0.12)0.90(Ni0.80Co0.15Al0.05)0.10]O2正极材料,通过调控Ni、Co、Al元素在材料内部形成梯度分布来提升材料的稳定性,采用X射线衍射仪(XRD)、扫描电镜(SEM)、透射电镜(TEM)、电子探针(EPMA)及电化学测试等方法对材料性能进行表征。结果表明:三元正极材料具有良好的层状结构,Ni、Co和Al元素呈梯度分布。以0.2 C进行充放电,首次放电比容量为191.2 mAh/g,以0.2 C充1 C放电循环100次,电池比容量由174.4 mAh/g下降到111.1 mAh/g,容量保持率为63.7%。
|
| 关 键 词： | 梯度分布 镍钴铝酸锂(NCA) 三元正极材料 锂离子电池 |
Preparation of high nickel system Li[(Ni0.88Co0.12)0.90(Ni0.80Co0.15Al0.05)0.10]O2 cathode material |
| |
| GUO Yu,HUANG Ling,XIAO Fang-ming,WANG Ying,TANG Ren-heng. Preparation of high nickel system Li[(Ni0.88Co0.12)0.90(Ni0.80Co0.15Al0.05)0.10]O2 cathode material[J]. Chinese Journal of Power Sources, 2020, 0(1): 13-16,65 |
| |
| Authors: | GUO Yu HUANG Ling XIAO Fang-ming WANG Ying TANG Ren-heng |
| |
| Affiliation: | (Guangdong Provincial Key Laboratory of Advanced Energy Storage Materials,College of Materials and Energy,Guangdong University of Technology,Guangzhou Guangdong 510006,China;Guangdong Provincial Key Laboratory of Rare Earth Development and Application,Guangdong Research Institute of Rare Metals,Guangzhou Guangdong 510650,China) |
| |
| Abstract: | Li[(Ni0.88Co0.12)0.90(Ni0.80Co0.15Al0.05)0.10]O2 cathode material was synthesized by co-precipitation method,and the gradient distribution of Ni,Co and Al element in the material was adjusted to improve the stability of the material.The properties of the materials were characterized by X-ray diffraction(XRD),scanning electron microscopy(SEM),transmission electron microscopy(TEM),electron probe(EPMA)and electrochemical test.The results show that the ternary cathode material has a good layered structure,and Ni,Co and Al element distribute in a gradient.The initial discharge specific capacity is 191.2 mAh/g at 0.2 C.The battery capacity decreases from 174.4 mAh/g to 111.1 mAh/g after 100 cycles at 0.2 C/1 C,and the capacity retention is 63.7%. |
| |
| Keywords: | gradient distribution nickel cobalt aluminate(NCA) ternary cathode material lithium ion battery |
| 本文献已被 CNKI 维普 等数据库收录！ |
|
