Designing an All-Solid-State Sodium-Carbon Dioxide Battery Enabled by Nitrogen-Doped Nanocarbon.,Nano Letters

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Designing an All-Solid-State Sodium-Carbon Dioxide Battery Enabled by Nitrogen-Doped Nanocarbon.
Nano Letters ( IF 9.6 ) Pub Date : 2020-03-31 , DOI: 10.1021/acs.nanolett.0c00564
Xiaofei Hu ₁ , Paul Hyunggyu Joo ₂ , Edward Matios ₁ , Chuanlong Wang ₁ , Jianmin Luo ₁ , Kesong Yang _{2,

3} , Weiyang Li ₁

Affiliation

All-solid-state sodium-carbon dioxide (Na-CO2) battery is an emerging technology that effectively utilizes the greenhouse gas, CO2, for energy storage with the virtues of minimized electrolyte leakage and suppressed Na dendrite growth for the Na metal anode. However, the sluggish reduction/evolution reactions of CO2 on the solid electrolyte/CO2 cathode interface have caused premature battery failure. Herein, nitrogen (N)-doped nanocarbon derived from metal-organic frameworks is designed as a cathode catalyst to solve this challenge. The porous and highly conductive N-doped nanocarbon possesses superior uptake and binding capability with CO2, which significantly accelerates the CO2 electroreduction and promotes the formation of thin sheetlike discharged products (200 nm in thickness) that can be easily decomposed upon charging. Accordingly, reduced discharge/charge overpotential, high discharge capacity (>10 000 mAh g-1), long cycle life, and high energy density (180 Wh kg-1 in pouch cells) are achieved at 50 °C.

中文翻译：

设计氮掺杂纳米碳活化的全固态碳酸钠电池。

全固态碳酸钠碳酸钠（Na-CO2）电池是一项新兴技术，该技术可有效利用温室气体CO2进行能量存储，并具有最大程度减少电解质泄漏和抑制Na金属阳极Na树枝状晶体生长的优点。然而，在固体电解质/ CO 2阴极界面上CO 2的缓慢的还原/释放反应已经导致电池过早失效。在本文中，衍生自金属有机骨架的氮（N）掺杂的纳米碳被设计为阴极催化剂，以解决这一难题。多孔且导电性强的N掺杂纳米碳具有出色的吸收和与CO2结合的能力，这可以显着加速CO2的电还原并促进形成薄片状放电产物（厚度为200 nm），该产物在充电时易于分解。因此，

更新日期：2020-03-26

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