Enhanced lithium and electron diffusion of LiFePO4 cathode with two-dimensional Ti3C2 MXene nanosheets
文献类型：期刊论文
| 作者 | Li, XC; Qian, YH; Liu, T; Cao, FT; Zang, Z; Sun, XL; Sun, SM; Niu, QH; Wu, JF; Wu, JF (reprint author), Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266042, Peoples R China. |
| 刊名 | JOURNAL OF MATERIALS SCIENCE
 |
| 出版日期 | 2018-08-01 |
| 卷号 | 53期号:15页码:11078-11090 |
| ISSN号 | 0022-2461 |
| 关键词 | Li-ion Batteries 2d Titanium Carbide 1100 Degrees-c Electrochemical Performance Conductive Additives Energy-storage Graphene Ti3alc2 Composite Capacity |
| 英文摘要 | Novel LiFePO4/Ti3C2 composite (LFP/TC) cathodes have been prepared via a simple wet mixing method followed by a heat treatment at 400 A degrees C. Ti3C2 nanosheets bridge the LiFePO4 nanoparticles to form an integrated conductive network via the "plane-to-point" conducting mode. This conductive network acts as short pathways for the diffusion of both lithium ion and electron in the composite cathode. Thus, the electronic and ionic conductivities are simultaneously enhanced, leading to the improved electrochemical properties of LFP/TC composites. Thereinto, the LFP/TC composite with 2 wt% Ti3C2 (LFP/TC2) delivers the highest initial discharge capacity of 159 mAh g(-1) at 0.1 C as well as the best rate performance with a high reversible capacity of 86 mAh g(-1) at 5 C. Meanwhile, the LFP/TC2 composite also holds the superior capacity retention of 96% at 1 C after 100 cycles. The results demonstrate that LFP/TC composite has promising practical applications as the cathode material in the high-power lithium-ion batteries.; Novel LiFePO4/Ti3C2 composite (LFP/TC) cathodes have been prepared via a simple wet mixing method followed by a heat treatment at 400 A degrees C. Ti3C2 nanosheets bridge the LiFePO4 nanoparticles to form an integrated conductive network via the "plane-to-point" conducting mode. This conductive network acts as short pathways for the diffusion of both lithium ion and electron in the composite cathode. Thus, the electronic and ionic conductivities are simultaneously enhanced, leading to the improved electrochemical properties of LFP/TC composites. Thereinto, the LFP/TC composite with 2 wt% Ti3C2 (LFP/TC2) delivers the highest initial discharge capacity of 159 mAh g(-1) at 0.1 C as well as the best rate performance with a high reversible capacity of 86 mAh g(-1) at 5 C. Meanwhile, the LFP/TC2 composite also holds the superior capacity retention of 96% at 1 C after 100 cycles. The results demonstrate that LFP/TC composite has promising practical applications as the cathode material in the high-power lithium-ion batteries. |
| 学科主题 | Materials Science, Multidisciplinary |
| 语种 | 英语 |
| 资助机构 | 100 Talents program of Chinese Academy of Sciences; National Natural Science Foundation of China [21673267]; China Postdoctoral Science Foundation |
| 公开日期 | 2018-06-05 |
| 源URL | [http://ir.imr.ac.cn/handle/321006/79278]  |
| 专题 | 金属研究所_中国科学院金属研究所 |
| 通讯作者 | Wu, JF (reprint author), Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266042, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Li, XC,Qian, YH,Liu, T,et al. Enhanced lithium and electron diffusion of LiFePO4 cathode with two-dimensional Ti3C2 MXene nanosheets[J]. JOURNAL OF MATERIALS SCIENCE,2018,53(15):11078-11090. |
| APA | Li, XC.,Qian, YH.,Liu, T.,Cao, FT.,Zang, Z.,...&Wu, JF .(2018).Enhanced lithium and electron diffusion of LiFePO4 cathode with two-dimensional Ti3C2 MXene nanosheets.JOURNAL OF MATERIALS SCIENCE,53(15),11078-11090. |
| MLA | Li, XC,et al."Enhanced lithium and electron diffusion of LiFePO4 cathode with two-dimensional Ti3C2 MXene nanosheets".JOURNAL OF MATERIALS SCIENCE 53.15(2018):11078-11090. |
入库方式： OAI收割
来源：金属研究所
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