Ce3+-doped Li4Ti5O12 with CeO2 surface modification by a sol-gel method for high-performance lithium-ion batteries
文献类型：期刊论文
| 作者 | Zhang, Qianyu1; Liu, Yan1; Lu, Huansheng1; Tang, Daoping1; Ouyang, Chuying2; Zhang, Lingzhi1 |
| 刊名 | electrochimica acta
 |
| 出版日期 | 2016-01-20 |
| 卷号 | 189页码:147-157 |
| 关键词 | Lithium-ion batteries Anode material Li4Ti5O12 Doping Rate capability |
| 英文摘要 | aliovalently ce3+-doped li4ti5o12 (lto) is firstly synthesized by a sol-gel method using ce(ch3cooh)(3) as the dopant and ch3cooli/(c4h9o)(4)ti as starting materials. the structure and morphology of ce3+-doped lto with various doping level (li4ti5-xcexo12; x = 0, 0.05, 0.10, 0.15 and 0.20) are characterized by xrd, edx, raman, xps, sem and tem. pure phase ce3+-doped li4ti5o12 is obtained when x <= 0.10, while ceo2 impurity is observed when x > 0.10. the ce3+-doped lto with appropriate content of ceo2 impurity shows much improved rate capability and specific capacity compared with the pristine and ce3+-doped lto without ceo2 impurity. particularly, the li4ti5-xcexo12 (x = 0.15) electrode exhibits the best rate capability and long-term cycling stability among all samples, delivering a capacity of 120.0 mah g(-1) at 5c even after 1000 cycles. this work demonstrates that aliovalently ce3+-doping is an effective approach for enhancing lto's rate-performance. (c) 2015 elsevier ltd. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | electrochemistry |
| 研究领域[WOS] | electrochemistry |
| 关键词[WOS] | high-rate capability ; doped li4ti5o12 ; anode material ; electrochemical performance ; spinel ; electrode ; composite ; graphene ; storage ; ceria |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000371140300018 |
| 源URL | [http://ir.giec.ac.cn/handle/344007/11129]  |
| 专题 | 中国科学院广州能源研究所 |
| 作者单位 | 1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China 2.Jiangxi Normal Univ, Dept Phys, Nanchang 330022, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Qianyu,Liu, Yan,Lu, Huansheng,et al. Ce3+-doped Li4Ti5O12 with CeO2 surface modification by a sol-gel method for high-performance lithium-ion batteries[J]. electrochimica acta,2016,189:147-157. |
| APA | Zhang, Qianyu,Liu, Yan,Lu, Huansheng,Tang, Daoping,Ouyang, Chuying,&Zhang, Lingzhi.(2016).Ce3+-doped Li4Ti5O12 with CeO2 surface modification by a sol-gel method for high-performance lithium-ion batteries.electrochimica acta,189,147-157. |
| MLA | Zhang, Qianyu,et al."Ce3+-doped Li4Ti5O12 with CeO2 surface modification by a sol-gel method for high-performance lithium-ion batteries".electrochimica acta 189(2016):147-157. |
入库方式： OAI收割
来源：广州能源研究所
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