Construction of conductive and flexible composite cathodes for room-temperature solid-state lithium batteries
文献类型：期刊论文
| 作者 | He, Minghui1; Cui, Zhonghui; Han, Feng2; Guo, Xiangxin3 |
| 刊名 | JOURNAL OF ALLOYS AND COMPOUNDS
 |
| 出版日期 | 2018 |
| 卷号 | 762页码:157 |
| 关键词 | Solid-state battery Flexible composite cathodes Stable interface Cycle stability and rate capability |
| ISSN号 | 0925-8388 |
| DOI | 10.1016/j.jallcom.2018.05.255 |
| 英文摘要 | Interfacial issues arising from the poor interface contact and poor interface stability between the stiff solid-state electrolytes (SSEs) and the electrodes have restricted the development of successful solid-state batteries (SSBs). Herein, we demonstrate that constructing flexible composite cathodes by introducing conductive frameworks consisting of succinonitrile and lithium salt significantly improves the contact performance and interface stability between garnet solid electrolyte and LiFePO4 cathode, enabling the resulted SSBs cycling steadily with high capacity even at room temperature. The introduction of such flexible frameworks not only enables close contact between the cathode and the stiff SSE, but also bridges every electrode and electrolyte particles together forming interconnected three-dimensional ionic conductive paths, reducing the total resistance to one-half of the batteries without such frameworks. On the other hand, the network is flexible enough to accommodate the volume change of LiFeO4 during cycling. These advantages endow that the SSBs of Li/SSE/LiFePO4 with the flexible composite cathodes demonstrate an initial discharge capacity of 149.8 mAh g(-1) and the Coulombic efficiency of 99% after 100 cycles at 0.05 C under room temperature. This method demonstrated here to integrate electrodes and stiff electrolytes by introducing flexible components will provides inspirations for people to construct high-performance room-temperature SSBs. (C) 2018 Elsevier B.V. All rights reserved. |
| 学科主题 | Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS记录号 | WOS:000436600000021 |
| 出版者 | ELSEVIER SCIENCE SA |
| 资助机构 | The authors would like to thank the financial supports from the National Natural Science Foundation of China (Grant No. 51772314, 51532002, 51771222 and 51702346) and the "Taishan Scholars Program". ; The authors would like to thank the financial supports from the National Natural Science Foundation of China (Grant No. 51772314, 51532002, 51771222 and 51702346) and the "Taishan Scholars Program". |
| 源URL | [http://ir.sic.ac.cn/handle/331005/24668]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 3.German Aerosp Ctr DLR, Inst Engn Thermodynam, D-70569 Stuttgart, Germany 4.Qingdao Univ, Coll Phys, Qingdao 266071, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Minghui,Cui, Zhonghui,Han, Feng,et al. Construction of conductive and flexible composite cathodes for room-temperature solid-state lithium batteries[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2018,762:157, 162. |
| APA | He, Minghui,Cui, Zhonghui,Han, Feng,&Guo, Xiangxin.(2018).Construction of conductive and flexible composite cathodes for room-temperature solid-state lithium batteries.JOURNAL OF ALLOYS AND COMPOUNDS,762,157. |
| MLA | He, Minghui,et al."Construction of conductive and flexible composite cathodes for room-temperature solid-state lithium batteries".JOURNAL OF ALLOYS AND COMPOUNDS 762(2018):157. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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