A liquid anode for rechargeable sodium-air batteries with low voltage gap and high safety
A liquid anode for rechargeable sodium-air batteries with low voltage gap and high safety
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一种低电压间隙、高安全性的可充电钠空气电池液体负极
DOI：
10.1016/j.nanoen.2018.04.074
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发表时间：
2018-07
期刊：
影响因子：
17.6
通讯作者：
Xueliang Sun
中科院分区：
文献类型：
--
作者：
Feng Liang;Xuechao Qiu;Qingkai Zhang;Yao Kang;Alicia Koo;Katsuro Hayashi;Kunfeng Chen;Dongfeng Xue;Kwun Nam Hui;Hossein Yadegari;Xueliang Sun
尽管用于储能的钠-空气电池的发展取得了令人印象深刻的进展，但目前的钠-空气电池在电动汽车中的实际应用还远远不够。利用NASICON结构的固体电解液和液体负极成功地构建了一种钠-空气电池，该电池具有低电压间隙、可逆性和高安全性。液体阳极是通过将金属钠溶解在联苯和醚的混合溶液中制成的。由于液体负极具有良好的导电性，在电流密度为0.1mA cm 2时，电池具有2.88 V的高放电电压和0.14 V的低电压间隙，从而使电池的往返效率达到95.3%。此外，由于液体负极的高离子导电性和液体负极与固体电解液之间的低界面电阻，电池显示出39 mW cm−2的功率密度，这是迄今为止碱金属-空气电池的最高值。此外，电池具有良好的循环性能，在整个充放电过程中没有观察到明显的能量效率下降。更重要的是，液体负极与水之间没有发生强烈的反应，显著提高了电池的安全性。该高导电性液体负极可推广到其他钠基电池。因此，这项工作为探索新型高安全性液体正极电池提供了途径，是下一代储能技术的潜在候选者。
Despite the impressive progress in the development of sodium-air batteries for energy storage, the current sodium-air batteries are still far from practical application in electric vehicles. A proposed sodium-air battery was successfully constructed using a NASICON structured solid electrolyte and a liquid anode, which demonstrated low voltage gap, reversibility, and high safety. The liquid anode was fabricated by dissolving sodium metal into a mixed solution of biphenyl and ethers. Due to the fantastic conductivity of the liquid anode, the battery exhibits a high discharge voltage of 2.88 V and a low voltage gap of 0.14 V at a current density of 0.1 mA cm−2, which leads to a high round trip efficiency of 95.3%. In addition, due to the high ionic conductivity of the liquid anode and low interfacial resistance between the liquid anode and solid electrolyte, the battery demonstrated a power density of 39 mW cm−2, the highest value to date for alkaline metal-air batteries. Furthermore, the battery exhibited good cycling performance, and no significant degradation in energy efficiency was observed during the whole charge-discharge process. More importantly, no strong reaction was observed between the liquid anode and water, which significantly improved the safety of the battery. The highly conductive liquid anode can be extended to other sodium-based batteries. Therefore, this work provides an avenue for exploring new types of highly safe liquid anode batteries, which is a potential candidate for next-generation energy storage technology.
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非质子Na-O2电池低极化的机制起源
影响因子：
3.3
作者：
Shunchao Ma;William C. McKee;Jiawei Wang;Limin Guo;Martin Jansen;Ye Xu;Zhangquan Peng
通讯作者：
Zhangquan Peng
影响因子：
3.7
作者：
Qian Sun;H. Yadegari;M. Banis;Jian Liu;B. Xiao;Xia Li;Craig Langford;Ruying Li;X. Sun
通讯作者：
Qian Sun;H. Yadegari;M. Banis;Jian Liu;B. Xiao;Xia Li;Craig Langford;Ruying Li;X. Sun
影响因子：
32.5
作者：
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通讯作者：
H. Yadegari;Yongliang Li;M. Banis;Xifei Li;Biqiong Wang;Qian Sun;Ruying Li;T. Sham;X. Cui;X. Sun
影响因子：
16.6
作者：
Yu J;Hu YS;Pan F;Zhang Z;Wang Q;Li H;Huang X;Chen L
通讯作者：
Chen L
影响因子：
3.8
作者：
Lukas Medenbach;C. L. Bender;Ronja Haas;B. Mogwitz;C. Pompe;P. Adelhelm;D. Schröder;J. Janek
通讯作者：
Lukas Medenbach;C. L. Bender;Ronja Haas;B. Mogwitz;C. Pompe;P. Adelhelm;D. Schröder;J. Janek