A novel Li4Ti5O12-based high-performance lithium-ion electrode at elevated temperature
文献类型：期刊论文
| 作者 | Guo, Junling1; Zuo, Wenhua2; Cai, Yingjun1; Chen, Shimou1; Zhang, Suojiang1; Liu, Jinping2 |
| 刊名 | JOURNAL OF MATERIALS CHEMISTRY A
 |
| 出版日期 | 2015 |
| 卷号 | 3期号:9页码:4938-4944 |
| 关键词 | BATTERY ELECTRODES SPINEL LI4+XTI5O12 CARBON NANOTUBES DOPED LI4TI5O12 RATE CAPABILITY ENERGY-STORAGE GAS GENERATION NANOWIRE ARRAY ANODE MATERIAL MECHANISM |
| ISSN号 | 2050-7488 |
| 其他题名 | J. Mater. Chem. A |
| 中文摘要 | Destructive gas generation with associated swelling has been the major challenge for the large-scale application of Li4Ti5O12 (LTO)-based lithium-ion batteries (LIBs), especially when the LIBs work at high temperature. Here we report a new kind of Li4Ti5O12-rutile TiO2 (LTO-RTO) hybrid nanowire array electrode that can be cycled at elevated temperatures. After assembling the optimized LTO-RTO hybrid array as the anode and commercial LiCoO2 (LCO) film as the cathode, the obtained lithium-ion full cell exhibits outstanding performance with an ultralong lifetime at 60 degrees C (similar to 83.6% of its initial capacity can be retained at the end of 500 cycles at similar to 2.5 C). Based on comparative experiments, we proposed a reasonable mechanism and, further, provided a reasonable verdict about the gas generation: the H-2 and CO generation from the LTO electrode are significantly associated with the (111) facet. The presence of more LTO (400) planes than (111) ones in the optimized LTO-RTO electrode is the essential reason for long-term cycling at 60 degrees C without gassing. Our work implies that an ability to tune the crystal facet orientation of electrode nanostructures will be meaningful in the practical design of next-generation high-stability LIBs. |
| 英文摘要 | Destructive gas generation with associated swelling has been the major challenge for the large-scale application of Li4Ti5O12 (LTO)-based lithium-ion batteries (LIBs), especially when the LIBs work at high temperature. Here we report a new kind of Li4Ti5O12-rutile TiO2 (LTO-RTO) hybrid nanowire array electrode that can be cycled at elevated temperatures. After assembling the optimized LTO-RTO hybrid array as the anode and commercial LiCoO2 (LCO) film as the cathode, the obtained lithium-ion full cell exhibits outstanding performance with an ultralong lifetime at 60 degrees C (similar to 83.6% of its initial capacity can be retained at the end of 500 cycles at similar to 2.5 C). Based on comparative experiments, we proposed a reasonable mechanism and, further, provided a reasonable verdict about the gas generation: the H-2 and CO generation from the LTO electrode are significantly associated with the (111) facet. The presence of more LTO (400) planes than (111) ones in the optimized LTO-RTO electrode is the essential reason for long-term cycling at 60 degrees C without gassing. Our work implies that an ability to tune the crystal facet orientation of electrode nanostructures will be meaningful in the practical design of next-generation high-stability LIBs. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Chemistry ; Energy & Fuels ; Materials Science |
| 关键词[WOS] | BATTERY ELECTRODES ; SPINEL LI4+XTI5O12 ; CARBON NANOTUBES ; DOPED LI4TI5O12 ; RATE CAPABILITY ; ENERGY-STORAGE ; GAS GENERATION ; NANOWIRE ARRAY ; ANODE MATERIAL ; MECHANISM |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000349997000023 |
| 公开日期 | 2015-04-01 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11735]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Inst Proc Engn,Key Lab Green Proc & Engn, Beijing 100190, Peoples R China 2.Cent China Normal Univ, Dept Phys, Inst Nanosci & Nanotechnol, Wuhan 430079, Hunan, Peoples R China |
| 推荐引用方式 GB/T 7714 | Guo, Junling,Zuo, Wenhua,Cai, Yingjun,et al. A novel Li4Ti5O12-based high-performance lithium-ion electrode at elevated temperature[J]. JOURNAL OF MATERIALS CHEMISTRY A,2015,3(9):4938-4944. |
| APA | Guo, Junling,Zuo, Wenhua,Cai, Yingjun,Chen, Shimou,Zhang, Suojiang,&Liu, Jinping.(2015).A novel Li4Ti5O12-based high-performance lithium-ion electrode at elevated temperature.JOURNAL OF MATERIALS CHEMISTRY A,3(9),4938-4944. |
| MLA | Guo, Junling,et al."A novel Li4Ti5O12-based high-performance lithium-ion electrode at elevated temperature".JOURNAL OF MATERIALS CHEMISTRY A 3.9(2015):4938-4944. |
入库方式： OAI收割
来源：过程工程研究所
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