All-carbon lithium capacitor based on salt crystal-templated, N-doped porous carbon electrodes with superior energy storage

2018 ◽  
Vol 6 (37) ◽  
pp. 18276-18285 ◽  
Author(s):  
Yongpeng Cui ◽  
Wei Liu ◽  
Yan Lyu ◽  
Yuan Zhang ◽  
Huanlei Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Porous Carbon ◽  
Lower Cost ◽  
Carbon Electrodes ◽  
Salt Crystal ◽  
Porous Carbon Electrodes ◽  
Carbon Network

All-carbon LIC with higher energy density and lower cost are constructed based on NaHCO3 crystal designed N-doped carbon network.

Sorghum biomass-derived porous carbon electrodes for capacitive deionization and energy storage

2021 ◽  
Vol 312 ◽  
pp. 110757
Author(s):  
Minjun Kim ◽  
Hyunsoo Lim ◽  
Xingtao Xu ◽  
Md Shahriar A. Hossain ◽  
Jongbeom Na ◽  
...  
Keyword(s):  
Energy Storage ◽  
Porous Carbon ◽  
Carbon Electrodes ◽  
Capacitive Deionization ◽  
Porous Carbon Electrodes

scholarly journals Graphitic Porous Carbon Derived from Waste Coffee Sludge for Energy Storage

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 3972
Author(s):  
Hyeyoung Jung ◽  
Jihyeon Kang ◽  
Inho Nam ◽  
Sunyoung Bae
Keyword(s):  
Energy Storage ◽  
Porous Carbon ◽  
Lower Cost ◽  
Carbon Materials ◽  
Storage Capacity ◽  
Hydrothermal Carbonization ◽  
Waste Sludge ◽  
Electronic Conductivities ◽  
Porous Carbon Electrodes ◽  
Waste Handling

Coffee is one of the largest agricultural products; however, the majority of the produced coffee is discarded as waste sludge by beverage manufacturers. Herein, we report the use of graphitic porous carbon materials that have been derived from waste coffee sludge for developing an energy storage electrode based on a hydrothermal recycling procedure. Waste coffee sludge is used as a carbonaceous precursor for energy storage due to its greater abundance, lower cost, and easier availability as compared to other carbon resources. The intrinsic fibrous structure of coffee sludge is based on cellulose and demonstrates enhanced ionic and electronic conductivities. The material is primarily composed of cellulose-based materials along with several heteroatoms; therefore, the waste sludge can be easily converted to functionalized carbon. The production of unique graphitic porous carbon by hydrothermal carbonization of coffee sludge is particularly attractive since it addresses waste handling issues, offers a cheaper recycling method, and reduces the requirement for landfills. Our investigations revealed that the graphitic porous carbon electrodes derived from coffee sludge provide a specific capacitance of 140 F g−1, with 97% retention of the charge storage capacity after 1500 cycles at current density of 0.3 A g−1.

High energy density aqueous zinc–benzoquinone batteries enabled by carbon cloth with multiple anchoring effects

2021 ◽  
Author(s):  
Zhiqiang Luo ◽  
Silin Zheng ◽  
Shuo Zhao ◽  
Xin Jiao ◽  
Zongshuai Gong ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Porous Carbon ◽  
Large Scale ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Cloth ◽  
Anchoring Effects ◽  
High Theoretical Capacity ◽  
Energy Storage Applications

Benzoquinone with high theoretical capacity is anchored on N-plasma engraved porous carbon as a desirable cathode for rechargeable aqueous Zn-ion batteries. Such batteries display tremendous potential in large-scale energy storage applications.

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