Solid-state grinding/low-temperature calcining synthesis of carbon coated MnO2 nanorods and their electrochemical capacitive property

2015 ◽  
Vol 39 (6) ◽  
pp. 4731-4736 ◽  
Author(s):  
Li Li ◽  
Xin Guo ◽  
Fei Hao ◽  
Xiaohua Zhang ◽  
Jinhua Chen

Carbon-coated MnO2 nanorods, prepared using a solid-state grinding/low-temperature calcining synthesis method, exhibit excellent capacitive performance and long-term cycling stability.

2019 ◽  
Vol 3 (9) ◽  
pp. 2361-2365 ◽  
Author(s):  
Xiaoyong Dou ◽  
Ming Chen ◽  
Jiantao Zai ◽  
Zhen De ◽  
Boxu Dong ◽  
...  

Silicon (Si) has been regarded as a promising next-generation anode material to replace carbon-based materials for lithium ion batteries (LIBs).


2019 ◽  
Author(s):  
Debanjana Pahari ◽  
Sreeraj Puravankara

A novel cathode material with Ti-substitution on Ni site, P2-type Na0.67Ni0.25Ti0.08Mn0.67O2 has been synthesized via solid-state synthesis method and characterized electrochemically. Na0.67Ni0.25Ti0.08Mn0.67O2 electrodes have been observed tobe highly reversible at higher voltage ranges. The electrodes have an initial discharge capacity of 125 mAhg-1and can retain around 84% of this capacity (105 mAhg-1) even after 50 cycles at 0.1C when cycled at an uppercut-off voltage of 4.3 V. Na0.67Ni0.25Ti0.08Mn0.67O2 electrodes are believed to suppress the irreversible P2-O2 transformation by diverting the charging reaction through a more reversible P2-OP4transition.


Ionics ◽  
2020 ◽  
Vol 26 (8) ◽  
pp. 4141-4151 ◽  
Author(s):  
Liu Yang ◽  
Jiansen Wang ◽  
Shihao Wang ◽  
Xiaohui Guan ◽  
Xin Guan ◽  
...  

2019 ◽  
Vol 55 (72) ◽  
pp. 10689-10692 ◽  
Author(s):  
Hao Gong ◽  
Hairong Xue ◽  
Xueyi Lu ◽  
Bin Gao ◽  
Tao Wang ◽  
...  

Solid-state lithium oxygen batteries with MOF-converted nickel cobaltate nanoflake arrays as high-performance oxygen cathodes were prepared, delivering high reversibility and long-term cycling stability over 90 cycles.


2020 ◽  
Vol 385 ◽  
pp. 123984 ◽  
Author(s):  
Ha-Kyung Roh ◽  
Geon-Woo Lee ◽  
Safa Haghighat-Shishavan ◽  
Kyung Yoon Chung ◽  
Kwang-Bum Kim

2016 ◽  
Vol 28 (45) ◽  
pp. 9979-9985 ◽  
Author(s):  
Xuefeng Tong ◽  
Fan Zhang ◽  
Bifa Ji ◽  
Maohua Sheng ◽  
Yongbing Tang

2017 ◽  
Vol 751 ◽  
pp. 353-357 ◽  
Author(s):  
Kenji Toda ◽  
Sun Woog Kim ◽  
Takuya Hasegawa ◽  
Mizuki Watanabe ◽  
Tatsuro Kaneko ◽  
...  

We report a novel soft chemical synthesis method, water assisted solid state reaction (WASSR) method. This method is very simple and can synthesize many ceramic materials just by storing or mixing raw materials added a small amount of water in a reactor at low temperature below 373 K. For example, well-crystalline SrMoO4 was obtained using the WASSR method.


2014 ◽  
Vol 1679 ◽  
Author(s):  
Shiang Teng ◽  
Wei Wang ◽  
Ashutosh Tiwari

ABSTRACTThe solid state electrolyte (SSE) of Li5La3Nb2O12 (LLNO) was synthesized via a novel molten salt synthesis (MSS) method at the relatively low temperature of 900°C. The low sintering temperature prevented the loss of lithium that commonly occurs during synthesis of the SSE using conventional solid state or wet chemical reactions. Recent publications have demonstrated that preserving the Li content is critical in improving the ionic conductivity of SSEs. The LLNO in this experiment showed a high Li-ion conductivity which is comparable to other values reported for LLNO. X-ray diffraction (XRD) measurements confirmed the formation of the cubic garnet Ia-3d crystal structure. In addition, the morphology was examined by scanning electron microscopy (SEM), which showed a uniform grain size and crack-free microstructure. These results demonstrate that MSS is a powerful synthesis method to fabricate LLNO at a relatively low temperature while still achieving a high quality material.


2017 ◽  
Vol 5 (27) ◽  
pp. 13971-13975 ◽  
Author(s):  
Sui Gu ◽  
Xiao Huang ◽  
Qing Wang ◽  
Jun Jin ◽  
Qingsong Wang ◽  
...  

A hybrid electrolyte prepared using oxide ceramics and fluorinated electrolytes enhances the capacity retention and long-term cycling stability of lithium–sulfur batteries.


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