Study on enhancing electrochemical properties of Li in layered compound Na0.7Li0.3Mn0.75O2
文献类型：期刊论文
| 作者 | Yu, H; Liu, GQ; Li, GC; Zhang, JY; Chen, G; Wen, L; Liu, GQ (reprint author), Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China.; Wen, L (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China. |
| 刊名 | ELECTROCHIMICA ACTA
 |
| 出版日期 | 2018-02-10 |
| 卷号 | 263页码:474-479 |
| 关键词 | Sodium-ion Batteries Cathode Material Substitution Oxygen Oxide |
| ISSN号 | 0013-4686 |
| 英文摘要 | The enhancing sodium ion insertion and deinsertion characteristics of Li in layered structure compound were studied. Layered structure materials Na2/3Ni1/3Mn2/3O2 and Na0.7Li0.3Mn0.75O2 were synthesized. They can be used as cathode materials for sodium ion batteries. Although they displayed same crystal structures, the Na0.7Li0.3Mn0.75O2 exhibited better electrochemical properties than Na2/3Ni1/3Mn2/3O2. For Na0.7Li0.3Mn0.75O2, when cycled between 2.0 and 4.4 V at a current rate of 17 mA g(-1), its charge capacity of reached 175 mAh g(-1), and its discharge capacity was 149 mAh g(-1). In the first several charge-discharge cycles, the capacity decreased with cycles performing. Then capacity tended to be stable and began to increase. After 40 cycles, its discharge capacity was 143 mAh g(-1). It discharge capacity could reach 121 mAh g(-1) at current rates of 0.34 mA g(-1)-charge/0.85 mA g(-1)-discharge. Li element enhanced the electrochemical properties such as cycle performance and rate capability. (c) 2018 Elsevier Ltd. All rights reserved.; The enhancing sodium ion insertion and deinsertion characteristics of Li in layered structure compound were studied. Layered structure materials Na2/3Ni1/3Mn2/3O2 and Na0.7Li0.3Mn0.75O2 were synthesized. They can be used as cathode materials for sodium ion batteries. Although they displayed same crystal structures, the Na0.7Li0.3Mn0.75O2 exhibited better electrochemical properties than Na2/3Ni1/3Mn2/3O2. For Na0.7Li0.3Mn0.75O2, when cycled between 2.0 and 4.4 V at a current rate of 17 mA g(-1), its charge capacity of reached 175 mAh g(-1), and its discharge capacity was 149 mAh g(-1). In the first several charge-discharge cycles, the capacity decreased with cycles performing. Then capacity tended to be stable and began to increase. After 40 cycles, its discharge capacity was 143 mAh g(-1). It discharge capacity could reach 121 mAh g(-1) at current rates of 0.34 mA g(-1)-charge/0.85 mA g(-1)-discharge. Li element enhanced the electrochemical properties such as cycle performance and rate capability. (c) 2018 Elsevier Ltd. All rights reserved. |
| 学科主题 | Electrochemistry |
| 语种 | 英语 |
| 资助机构 | National Natural Science Foundation of China [51574081] |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79509]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Liu, GQ (reprint author), Northeastern Univ, Sch Met, Shenyang 110819, Liaoning, Peoples R China.; Wen, L (reprint author), Chinese Acad Sci, Inst Met Res, Shenyang 110016, Liaoning, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Yu, H,Liu, GQ,Li, GC,et al. Study on enhancing electrochemical properties of Li in layered compound Na0.7Li0.3Mn0.75O2[J]. ELECTROCHIMICA ACTA,2018,263:474-479. |
| APA | Yu, H.,Liu, GQ.,Li, GC.,Zhang, JY.,Chen, G.,...&Wen, L .(2018).Study on enhancing electrochemical properties of Li in layered compound Na0.7Li0.3Mn0.75O2.ELECTROCHIMICA ACTA,263,474-479. |
| MLA | Yu, H,et al."Study on enhancing electrochemical properties of Li in layered compound Na0.7Li0.3Mn0.75O2".ELECTROCHIMICA ACTA 263(2018):474-479. |
入库方式： OAI收割
来源：金属研究所
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