期刊
ACS APPLIED MATERIALS & INTERFACES
卷 9, 期 48, 页码 41871-41877出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.7b12892
关键词
3D printing; frameworks; sodium-ion batteries; cathode; anode
资金
- National Science Foundation of China [51572007, 51622203]
Exploring 3D printing in the field of sodium-ion batteries is a great challenge since conventionally inks cause unavoidably compact filaments or frameworks, which significantly hamper the infiltration of electrolyte and diffusion of big-size sodium ions (1.02 angstrom), resulting in low reversible capacities. Here, new hierarchical porous frameworks are 3D printed for sodium storage by employing well-designed GO-contained inks. The resultant frameworks possess continuous filaments, hierarchical multihole gridding. Such distinct properties render these frameworks able to facilitate the fast transportation of both sodium ion and electron. As a result, 3D-printed hierarchical porous frameworks reveal the high specific capacity as well as rate performance and periodic steadiness for up to 900 cycles for sodium storage.
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