In-situ grown vanadium nitride coated with thin layer of nitrogen-doped carbon as a highly durable binder-free cathode for Li–O2 batteries
In-situ grown vanadium nitride coated with thin layer of nitrogen-doped carbon as a highly durable binder-free cathode for Li–O2 batteries
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原位生长的氮化钒涂有一层薄薄的氮掺杂碳，作为锂氧电池的高度耐用的无粘合剂阴极
DOI：
10.1016/j.jpowsour.2020.228109
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发表时间：
2020-06
影响因子：
9.2
通讯作者：
Shijun Liao
中科院分区：
文献类型：
--
作者：
Kailing Sun;Mingrui Liu;Siyan Yu;Huiyu Song;Jianhuang Zeng;Xiuhua Li;Shijun Liao
Li-O2电池由于其超高的理论能量密度而成为最有前途的下一代储能系统之一。然而，其进一步发展受到当前阴极系统的阻碍，其表现出低能量效率和差的循环稳定性。本文报道了一种在碳纸上原位生长氮掺杂碳纳米带的氮化钒复合材料（VN@C）作为一种新型的无粘结剂锂氧电池阴极。我们发现氮掺杂的碳涂层可以显着提高VN的稳定性，提高复合材料的ORR/OER活性。与我们的最佳VN@C-850阴极的Li-O2电池实现8269 mA h g-1的初始放电容量，0.88 V的放电-充电电压间隙，和相当大的循环稳定性为183个循环，截止容量为1000 mA h g-1，与2027 mA h g-1，1.21 V，和12个循环相比，与未涂覆的VN阴极。
The Li–O2 battery is one of the most promising next-generation energy storage systems due to its super-high theoretical energy density. However, its further development is impeded by the current cathode system, which exhibits low energy efficiency and poor cycling stability. Herein, we report a composite of vanadium nitride coated with nitrogen-doped carbon nanoribbons grown in situ on carbon paper (denoted as VN@C) as a novel binder-free cathode for Li–O2 batteries. We find that the nitrogen-doped carbon coating can significantly improve the stability of VN and enhance the composite’s ORR/OER activities. The Li–O2 batteries with our optimal VN@C-850 cathodes achieve an initial discharge capacity of 8269 mA h g 1, a discharge-charge voltage gap of 0.88 V, and considerable cycling stability for 183 cycles with a cut-off capacity of 1000 mA h g 1, compared with 2027 mA h g 1, 1.21 V, and 12 cycles with uncoated VN cathodes.
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由多孔纳米片组装而成的 VN 空心球，用于高性能锂存储和氧还原反应
DOI：
10.1039/c6ta01707j
发表时间：
2016
期刊：
J. Mater. Chem. A
影响因子：
--
作者：
Di Zhao;Zhentao Cui;Shuguang Wang;Jinwen Qin;Minhua Cao
通讯作者：
Minhua Cao
影响因子：
9.2
作者：
Yage Wu;F. Ran
通讯作者：
Yage Wu;F. Ran
影响因子：
17.1
作者：
K. Yoon;Kihyun Shin;Jiwon Park;Su-Ho Cho;Chanhoon Kim;Ji-Won Jung;J. Cheong;H. Byon;Hyuk Mo Lee-Hy
通讯作者：
K. Yoon;Kihyun Shin;Jiwon Park;Su-Ho Cho;Chanhoon Kim;Ji-Won Jung;J. Cheong;H. Byon;Hyuk Mo Lee-Hy
影响因子：
3.7
作者：
Li Zhang;C. M. Holt;E. Luber;B. Olsen;Huatao Wang;M. Danaie;Xinwei Cui;X. Tan;V. Lui;
通讯作者：
Li Zhang;C. M. Holt;E. Luber;B. Olsen;Huatao Wang;M. Danaie;Xinwei Cui;X. Tan;V. Lui;
提高薄碳壳金属氮化物超级电容器电极的循环稳定性
影响因子：
27.8
作者：
Lu, Xihong;Liu, Tianyu;Li, Yat
通讯作者：
Li, Yat