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首页> 外文期刊>Nano Energy >Binder-free NaTi2(PO4)(3) anodes for high-performance coaxial-fiber aqueous rechargeable sodium-ion batteries
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Binder-free NaTi2(PO4)(3) anodes for high-performance coaxial-fiber aqueous rechargeable sodium-ion batteries

机译：用于高性能同轴纤维水性可充电钠离子电池的无活粘Nati2（PO4）（3）阳极

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摘要

Sodium superionic conductors-structured NaTi2(PO4)(3) (NTP) is a significant anode material for high-energy-density aqueous rechargeable sodium-ion batteries (ARSIB) as result of its high capacity, abundant sources and suitable negative voltage plateau. Conventional synthesis of NTP with inevitable high-temperature treatment and subsequent slurry-casting procedure commonly lead to complicated high-cost process and reduced active sites. Thus, it is highly desirable yet significantly challenging to fabricate self-standing NTP-based electrodes. Herein, a simple solvothermal synthesis strategy is demonstrated to fabricate novel binder-free NTP-based electrodes without the need for any further post-synthesis treatment. As a proof-of-concept for applications, we successfully assemble a high-voltage coaxial-fiber ARSIB (CFARSIB). Taking advantages of the unique coaxial architecture and the synergy of novel electrode materials, the resulting CFARSIB exhibits a high capacity of 37.84 mAh cm(-3) and an impressive energy density of 57.66 mWh cm(-3). This work provides innovative insights and new possibilities to design binder-free NTP materials and will accelerate the development of high-performance wearable SIBs.
机译：由于其高容量，丰富的源和合适的负压平台，钠表面导体结构Nati2（PO4）（3）（3）（3）（3）（NTP）是高能密度含水可再充电钠离子电池（ARSIB）的显着阳极材料。具有不可避免的高温处理的NTP和随后的浆料浇铸过程的常规合成通常导致复杂的高成本过程和减少活性位点。因此，非常理想的是制造自站立NTP基电极的显着挑战。在此，证明了一种简单的溶剂热合成策略以制造新的无粘合剂的NTP基电极，而不需要任何进一步的合成后处理。作为应用程序的概念验证，我们成功地组装了高压同轴光纤arsib（Cfarsib）。采取独特的同轴架构和新型电极材料的协同作用的优点，所得到的CFARSIB呈现为37.84mah cm（-3）的高容量，令人印象深刻的能量密度为57.66mwh cm（-3）。这项工作为设计无铅NTP材料提供了创新的见解和新的可能性，并将加速高性能可穿戴SIB的开发。

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