N/O dual-doped hollow carbon microspheres constructed by holey nanosheet shells as large-grain cathode host for high loading Li-S batteries
文献类型：期刊论文
| 作者 | Zhou, XJ; Tian, J; Wu, QP; Hu, JL; Li, CL |
| 刊名 | ENERGY STORAGE MATERIALS
 |
| 出版日期 | 2020 |
| 页码 | 644 |
| ISSN号 | 2405-8297 |
| DOI | 10.1016/j.ensm.2019.06.009 |
| 文献子类 | Article |
| 英文摘要 | Lithium-sulfur (Li-S) battery is one of the most prospective energy storage systems beyond lithium ion battery technologies owing to its super-high theoretical energy density and low cost. However, the dissolution of polysulfide intermediates and low level of sulfur loading still retard the practical application of Li-S batteries. Here, a self-sacrifice templating strategy is reported to synthesize N/O dual-doped hollow carbon microspheres (HCMs) by carbonization of polydopamine coating carbon nitride hollow spheres. The HCM host is constructed by holey nanosheets in shell with a large surface area (873 m(2)/g) and pore volume (4.84 cm(3)/g), high N/O doping contents (5.36 and 6.99 atom%). Benefiting from the confinement effect, wetting capability, lithiophilic adsorption and catalytic conversion, HCMs-S cathode enables a reversible capacity around 900 mAh/g at 1-2 C and a retention capacity of 530 mAh/g after 900 cycles. HCMs-S also enables an endurance of high mass and areal S loadings (90% and 4.84 mg/cm(2)) with a reversible capacity around 700 mAh/g. Long-term and high-rate cycling does not degrade the homogeneous deposition of nanostructured Li2S at cathode side and dendrite-free Li plating at anode side. This work demonstrates a facile approach to micro-sized C-S grains with desirable three-dimensional architecture composed of two-dimensional building blocks and interconnected mass/charge transport channels for high loading Li-S batteries. |
| WOS关键词 | CONVERSION ANODE ; SULFUR CATHODE ; NITROGEN ; POLYSULFIDES ; IMMOBILIZER ; KINETICS ; SPHERES ; SIZE |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| 源URL | [http://ir.sic.ac.cn/handle/331005/28411]  |
| 专题 | 中国科学院上海硅酸盐研究所 |
| 推荐引用方式 GB/T 7714 | Zhou, XJ,Tian, J,Wu, QP,et al. N/O dual-doped hollow carbon microspheres constructed by holey nanosheet shells as large-grain cathode host for high loading Li-S batteries[J]. ENERGY STORAGE MATERIALS,2020:644. |
| APA | Zhou, XJ,Tian, J,Wu, QP,Hu, JL,&Li, CL.(2020).N/O dual-doped hollow carbon microspheres constructed by holey nanosheet shells as large-grain cathode host for high loading Li-S batteries.ENERGY STORAGE MATERIALS,644. |
| MLA | Zhou, XJ,et al."N/O dual-doped hollow carbon microspheres constructed by holey nanosheet shells as large-grain cathode host for high loading Li-S batteries".ENERGY STORAGE MATERIALS (2020):644. |
入库方式： OAI收割
来源：上海硅酸盐研究所
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