Photopolymer Electrolytes for Sustainable, Upscalable, Safe, and Ambient-Temperature Sodium-Ion Secondary Batteries
Photopolymer Electrolytes for Sustainable, Upscalable, Safe, and Ambient-Temperature Sodium-Ion Secondary Batteries
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DOI：
10.1002/cssc.201500873
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发表时间：
2015-11-09
期刊：
影响因子：
8.4
通讯作者：
Gerbaldi, Claudio
中科院分区：
文献类型：
--
作者：
Bella, Federico;Colo, Francesca;Gerbaldi, Claudio
本文提出了用于钠离子电池的光聚合电解质的第一实例。通过不含溶剂、催化剂、纯化步骤和分离步骤的制备方法，可以获得能够有效传输钠离子的三维聚合物网络。通过热重和量热技术表征的所得固体电解质隔板的热性能对于用于安全的大规模电网存储的可持续能源系统是优异的。光聚合电解质显示出宽的电化学稳定窗口，相对于Na/Na+沿着达到4.8V，具有迄今为止在Na离子聚合物电池领域中获得的最高离子电导率（在20 ℃下为5.1mScm（-1））和稳定的长期恒流充电/放电循环。此外，聚合物网络也被证明为具有优异界面性能的电极/电解质复合材料的原位制造，这是理想的全固态，安全，易于升级的设备组件。
The first example of a photopolymerized electrolyte for a sodium-ion battery is proposed herein. By means of a preparation process free of solvents, catalysts, purification steps, and separation steps, it is possible to obtain a three-dimensional polymeric network capable of efficient sodium-ion transport. The thermal properties of the resulting solid electrolyte separator, characterized by means of thermogravimetric and calorimetric techniques, are excellent for use in sustainable energy systems conceived for safe large-scale grid storage. The photopolymerized electrolyte shows a wide electrochemical stability window up to 4.8V versus Na/Na+ along with the highest ionic conductivity (5.1mScm(-1) at 20 degrees C) obtained in the field of Na-ion polymer batteries so far and stable long-term constant-current charge/discharge cycling. Moreover, the polymeric networks are also demonstrated for the insitu fabrication of electrode/electrolyte composites with excellent interfacial properties, which are ideal for all-solid-state, safe, and easily upscalable device assembly.