Scalable fabrication of exceptional 3D carbon networks for supercapacitors

2015 ◽  
Vol 3 (31) ◽  
pp. 16104-16111 ◽  
Author(s):  
Kuo Song ◽  
Wei-Li Song ◽  
Li-Zhen Fan

We demonstrate a facile and exclusive approach toward the scalable preparation of novel 3D porous carbon networks using relatively low-cost commercial cottonviaconventional carbonization and activation. The resultant flexible all-solid-state supercapacitor delivers considerably satisfactory energy storage capability and excellent cycling stability.

2018 ◽  
Vol 6 (19) ◽  
pp. 8986-8991 ◽  
Author(s):  
Jiayi Chen ◽  
Haiyan Wang ◽  
Jiang Deng ◽  
Chunmei Xu ◽  
Yong Wang

Assembling a flexible solid-state asymmetry SC, based on LC-WO3in situ grown on porous carbon cloth, achieves an energy density of 7.6 mW h cm−3 and excellent cycling stability with 92% capacitance retention after 10 000 cycles.


2020 ◽  
Vol 1 (3) ◽  
pp. 481-494 ◽  
Author(s):  
Jingzhou Ling ◽  
Hanbo Zou ◽  
Wei Yang ◽  
Shengzhou Chen

The NiCoP@C-ULAs composite with high conductivity, abundant pores and good physical structure shows high specific capacity and excellent cycling stability.


2019 ◽  
Vol 12 (03) ◽  
pp. 1950042 ◽  
Author(s):  
Yunfeng Wang ◽  
Honghui Jiang ◽  
Shewen Ye ◽  
Jiaming Zhou ◽  
Jiahao Chen ◽  
...  

As the low-cost, natural multi-component for elemental doping and environment-friendly characteristics, biomass-derived porous carbon for energy storage attracts intense attention. Herein, walnut shells-based porous carbon has been obtained through carbonization, hydrothermal and activation treatment. The corresponding porous carbon owns superior electrochemical performances with specific capacitance reaching up to 462[Formula: see text]F[Formula: see text]g[Formula: see text] at 1[Formula: see text]A[Formula: see text]g[Formula: see text], and shows excellent cycling stability (5000 cycles, [Formula: see text]94.2% of capacitance retention at 10[Formula: see text]A[Formula: see text]g[Formula: see text]). Moreover, the symmetry supercapacitor achieves high specific capacitance (197[Formula: see text]F[Formula: see text]g[Formula: see text] at 1[Formula: see text]A[Formula: see text]g[Formula: see text]), relevant electrochemical cycling stability (5000 cycles, 89.2% of capacitance retention at 5[Formula: see text]A[Formula: see text]g[Formula: see text]) and high power/energy density (42.8[Formula: see text]W[Formula: see text]h[Formula: see text]kg[Formula: see text] at 1249[Formula: see text]W[Formula: see text]kg[Formula: see text]). Therefore, the facile synthesis approach and superb electrochemical performance ensure that the walnut shells-derived porous carbon is a promising electrode material candidate for supercapacitors.


2020 ◽  
Vol 32 ◽  
pp. 101735
Author(s):  
Jothi Ramalingam Rajabathar ◽  
Sivachidambaram Manoharan ◽  
Judith Vijaya J ◽  
Hamad A. Al-Lohedan ◽  
Prabhakarn Arunachalam

Author(s):  
William C. Leighty

Alaska village survival is threatened by the high cost of imported fuels for heating, electricity generation, and vehicles. During Winter 2007–8, the price per gallon of heating oil and diesel generation fuel exceeded $8 in many villages. Many villagers were forced to move to Anchorage or Fairbanks. Although indigenous renewable energy (RE) resources may be adequate to supply a community’s total annual energy needs, the innate intermittent and seasonal output of the renewables — except geothermal, where available, which may be considered “baseload” — requires large-scale, low-cost energy storage to provide an annually-firm energy supply. Anhydrous ammonia, NH3, is the most attractive, carbon-free fuel for this purpose at Alaska village scale, because of its 17.8% mass hydrogen content and its high energy density as a low-pressure liquid, suitable for storage in inexpensive mild steel tanks. NH3 may be synthesized directly from renewable-source electricity, water, and atmospheric nitrogen (N2) via solid state ammonia synthesis (SSAS), a new process to be pioneered in Alaska.


2016 ◽  
Vol 4 (19) ◽  
pp. 7178-7184 ◽  
Author(s):  
Yuruo Qi ◽  
Linqin Mu ◽  
Junmei Zhao ◽  
Yong-Sheng Hu ◽  
Huizhou Liu ◽  
...  

Na-ion batteries are becoming increasingly attractive as a low cost energy storage device.


Chem ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 902-918 ◽  
Author(s):  
Xiaofu Xu ◽  
Kui Lin ◽  
Dong Zhou ◽  
Qi Liu ◽  
Xianying Qin ◽  
...  

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