Increasing Accessible Subsurface to Improving Rate Capability and Cycling Stability of Sodium-Ion Batteries
文献类型：期刊论文
| 作者 | Yin, Bo; Liang, Shuquan; Yu, Dongdong; Cheng, Boshi; Egun, Ishioma L.; Lin, Jiande; Xie, Xuefang; Shao, Hezhu; He, Haiyong; Pan, Anqiang |
| 刊名 | ADVANCED MATERIALS
 |
| 出版日期 | 2021 |
| 卷号 | 33期号:37 |
| 关键词 | POROUS CARBON NANOSHEETS ANODE MATERIAL NITROGEN NANOTUBES STORAGE |
| 英文摘要 | Numerous studies have reported that the enhancement of rate capability of carbonaceous anode by heteroatom doping is due to the increased diffusion-controlled capacity induced by expanding interlayer spacing. However, percentage of diffusion-controlled capacity is less than 30% as scan rate is larger than 1 mV s(-1), suggesting there is inaccuracy in recognizing principle of improving rate capability of carbonaceous anode. In this paper, it is found that the heteroatom doping has little impact on interlayer spacing of carbon in bulk phase, meaning that diffusion-controlled capacity is hard to be enhanced by doping. After synergizing with tensile stress, however, the interlayer spacing in subsurface region is obviously expanded to 0.40 nm, which will increase the thickness of accessible subsurface region at high current density. So SRNDC-700 electrodes display a high specific capacity of 160.6 and 69.5 mAh g(-1) at 20 and 50 A g(-1), respectively. Additionally, the high reversibility of carbon structure insures ultralong cycling stability and hence attenuation of SRNDC-700 is only 0.0025% per cycle even at 10 A g(-1) for 6000 cycles. This report sheds new insight into mechanism of improving electrochemical performance of carbonaceous anode by doping and provides a novel design concept for doping carbon. |
| 源URL | [http://ir.nimte.ac.cn/handle/174433/21683]  |
| 专题 | 中国科学院宁波材料技术与工程研究所 2021专题_期刊论文 |
| 作者单位 | 1.Liang, SQ 2.Pan, AQ (corresponding author), Cent South Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China. 3.He, HY (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Ningbo 315201, Peoples R China. |
| 推荐引用方式 GB/T 7714 | Yin, Bo,Liang, Shuquan,Yu, Dongdong,et al. Increasing Accessible Subsurface to Improving Rate Capability and Cycling Stability of Sodium-Ion Batteries[J]. ADVANCED MATERIALS,2021,33(37). |
| APA | Yin, Bo.,Liang, Shuquan.,Yu, Dongdong.,Cheng, Boshi.,Egun, Ishioma L..,...&Pan, Anqiang.(2021).Increasing Accessible Subsurface to Improving Rate Capability and Cycling Stability of Sodium-Ion Batteries.ADVANCED MATERIALS,33(37). |
| MLA | Yin, Bo,et al."Increasing Accessible Subsurface to Improving Rate Capability and Cycling Stability of Sodium-Ion Batteries".ADVANCED MATERIALS 33.37(2021). |
入库方式： OAI收割
来源：宁波材料技术与工程研究所
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