3D-Printed Hierarchical Porous Frameworks for Sodium Storage,ACS Applied Materials & Interfaces

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3D-Printed Hierarchical Porous Frameworks for Sodium Storage
ACS Applied Materials & Interfaces ( IF 8.3 ) Pub Date : 2017-11-21 00:00:00 , DOI: 10.1021/acsami.7b12892
Junwei Ding ₁ , Kai Shen ₁ , Zhiguo Du ₁ , Bin Li ₁ , Shubin Yang ₁

Affiliation

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 Å), 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.

中文翻译：

用于钠盐存储的3D打印分层多孔框架

在钠离子电池领域探索3D打印是一个巨大的挑战，因为传统上，墨水不可避免地会导致细丝或骨架致密，这会严重阻碍电解质的渗透和大尺寸钠离子（1.02Å）的扩散，从而导致可逆容量低。在这里，采用精心设计的含GO的墨水，可以对3D打印新的分层多孔框架进行钠存储。所得的框架具有连续的细丝，分层的多孔网格。这些独特的特性使这些骨架能够促进钠离子和电子的快速运输。结果，3D打印的分层多孔框架显示了高达900个循环的钠存储的高比容量以及速率性能和周期性稳定性。

更新日期：2017-11-21

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