摘要
The gradient composite LiNi0.8Co0.2O2 was synthesized using spherical Ni(OH)2 particle coated by a sol-gel containing cobalt and lithium. The precursor was examined by DSC-TG. The gradient composite was characterized by SEM, EDS, XPS, XRD and ICP-AES. The XPS, EDS and ICP-AES results show that content of cobalt in the surface is higher than in the center of the spherical particle of the gradient composite. The first discharge specific capacity of the gradient composite sintered at 700 ℃ is 187.3 mAh·g-1.
The gradient composite LiNi0.8Co0.2O2 was synthesized using spherical Ni（OH）2 particle coated by a sol- gel containing cobalt and lithium. The precursor was examined by DSC-TG. The gradient composite was characterized by SEM, EDS, XPS, XRD and ICP-AES. The XPS, EDS and ICP-AES results show that content of cobalt in the surface is higher than in the center of the spherical particle of the gradient composite. The first discharge specific capacity of the gradient composite sintered at 700 ℃ is 187.3 mAh·g^-1
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2006年第2期321-325,共5页
Chinese Journal of Inorganic Chemistry
基金
科技部十五"863"项目(No.2002AA323020)
国家973计划(No.2002CB211807)
