Improving areal capacity of flexible Li–CO2 batteries by constructing a freestanding cathode with monodispersed MnO nanoparticles in N-doped mesoporous carbon nanofibers

2020 ◽  
Vol 8 (20) ◽  
pp. 10354-10362
Author(s):  
Siwu Li ◽  
Yuan Liu ◽  
Xing Gao ◽  
Jiaming Wang ◽  
Junwen Zhou ◽  
...  
Keyword(s):  
Energy Density ◽  
Carbon Nanofibers ◽  
Mesoporous Carbon ◽  
Electrode Structure ◽  
The Relationship ◽  
Areal Capacity

An ultrahigh-areal-capacity Li–CO2 cathode was fabricated with a revelation of the relationship between the electrode structure and the cell's energy density.

Investigation of the Water Guided Laser Micro-Jet Machining of Aero Engine Components

2017 ◽  
Author(s):  
Zhigang Wang
Keyword(s):  
Energy Density ◽  
Material Removal ◽  
Removal Rate ◽  
Cutting Speed ◽  
Potential Method ◽  
Laser Machining ◽  
Aero Engine ◽  
Engine Components ◽  
The Relationship ◽  
Dual Laser

The water guided laser micro-jet (LMJ) is a new potential method to machine aero engine parts with much less heat affected area and faster cutting speed than dry laser machining. The focus of this paper is to investigate the energy density and material removal for a dual-laser LMJ system. Then, the effects of dominated parameters on the energy density of LMJ are analyzed. Finally, a mathematical model is developed to describe the relationship between dominant laser parameters with the energy density of LMJ and material removal rate followed by machining case studies of aero engine components.

Soft-templated synthesis of mesoporous carbon nanospheres and hollow carbon nanofibers

2013 ◽  
Vol 282 ◽  
pp. 862-869 ◽  
Author(s):  
Youliang Cheng ◽  
Tiehu Li ◽  
Changqing Fang ◽  
Maorong Zhang ◽  
Xiaolong Liu ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Mesoporous Carbon ◽  
Carbon Nanospheres ◽  
Templated Synthesis ◽  
Hollow Carbon

scholarly journals Atomic Engineering Bifunctional Niobium (V)-based Heterostructure Nanosheet for High Efficiency Lean-Electrolyte Lithium-Sulfur Full Batteries

2021 ◽  
Author(s):  
Haodong Shi ◽  
Jieqiong Qin ◽  
Pengfei Lu ◽  
Cong Dong ◽  
Pratteek Das ◽  
...  
Keyword(s):  
High Efficiency ◽  
Electrode Structure ◽  
Practical Applications ◽  
Dual Functional ◽  
Redox Kinetics ◽  
Minimum Capacity ◽  
Li Ion ◽  
Positive Capacity ◽  
Areal Capacity ◽  
Lithium Sulfur

Abstract High-efficiency lithium-sulfur (Li-S) batteries depend on advanced electrode structure that can attain high sulfur utilization at lean-electrolyte and limited lithium. Herein, a twinborn holey Nb4N5-Nb2O5 heterostructure is designed as a dual-functional host for both redox-kinetics-accelerated sulfur cathode and dendrite-inhibited Li anode simultaneously for long-cycling and lean-electrolyte Li-S full batteries. Benefiting from the accelerative polysulfides anchoring-diffusion converting efficiency and electronic-conducting properties of Nb4N5-Nb2O5, polysulfide-shutting is significantly alleviated. Meanwhile, the lithiophilic nature of holey Nb4N5-Nb2O5 is applied as ion-redistributor for homogeneous Li-ion deposition. Taking advantage of these merits, the Li-S full batteries present the excellent electrochemical properties, including a minimum capacity decay of 0.025% per cycle, and a high areal-capacity of 5.0 mAh cm− 2 at sulfur loading of 6.9 mg cm− 2, corresponding to negative to positive capacity ratio (2.4:1) and electrolyte to sulfur ratio (5.1 µl mg− 1). Therefore, this work opens a new avenue for boosting high-performances Li-S batteries towards practical applications.

Inter-Bonded Carbon Nanofibers Based Anode for High Areal Capacity Lithium-Ion Battery

2021 ◽  
Vol MA2021-01 (9) ◽  
pp. 493-493
Author(s):  
Tazdik Patwary Plateau ◽  
Hiep Pham ◽  
Susmita Sarkar ◽  
Jonghyun Park
Keyword(s):  
Lithium Ion Battery ◽  
Carbon Nanofibers ◽  
Lithium Ion ◽  
Areal Capacity

An aqueous manganese–lead battery for large-scale energy storage

2020 ◽  
Vol 8 (12) ◽  
pp. 5959-5967 ◽  
Author(s):  
Jianhang Huang ◽  
Lei Yan ◽  
Duan Bin ◽  
Xiaoli Dong ◽  
Yonggang Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Large Scale ◽  
Cathodic Reaction ◽  
High Solubility ◽  
Anodic Reaction ◽  
Deposition Behavior ◽  
Lead Battery ◽  
Areal Capacity

A manganese–lead battery based on MnO2/Mn2+ cathodic reaction and PbSO4/Pb anodic reaction was demonstrated. With an optimized deposition behavior and high solubility of MnO2, high areal capacity (50 mA h cm−2) and energy density (187 W h L−1) can be obtained.

scholarly journals N-Enriched carbon nanofibers for high energy density supercapacitors and Li-ion batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (62) ◽  
pp. 36075-36081 ◽  
Author(s):  
Sayali B. Kale ◽  
Manjiri A. Mahadadalkar ◽  
Chang Hyo Kim ◽  
Yoong Ahm Kim ◽  
Manish S. Jayswal ◽  
...  
Keyword(s):  
Energy Density ◽  
Carbon Nanofibers ◽  
High Energy ◽  
High Energy Density ◽  
Li Ion Batteries ◽  
One Step ◽  
Li Ion

Nitrogen enriched carbon nanofibers have been obtained by one-step carbonization/activation of PAN-based nanofibers with various concentrations of melamine at 800 °C under a N2 atmosphere.

Graphene-based ordered mesoporous carbon hybrids with large surface areas for supercapacitors

2018 ◽  
Vol 42 (9) ◽  
pp. 7043-7048 ◽  
Author(s):  
Yun Deng ◽  
Aifei Xu ◽  
Wangting Lu ◽  
Yanhua Yu ◽  
Cheng Fu ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
Mesoporous Carbon ◽  
Specific Capacity ◽  
High Energy ◽  
Ordered Mesoporous Carbon ◽  
High Energy Density ◽  
Long Cycle Life ◽  
Surface Areas ◽  
Ordered Mesoporous

Graphene-ordered mesoporous carbon hybrids exhibited advanced specific capacity, high energy density and power density, and long cycle life.

Micro-/mesoporous carbon nanofibers embedded with ordered carbon for flexible supercapacitors

2018 ◽  
Vol 271 ◽  
pp. 591-598 ◽  
Author(s):  
Yanjiang Li ◽  
Wei Ou-Yang ◽  
Xingtao Xu ◽  
Miao Wang ◽  
Shujin Hou ◽  
...  
Keyword(s):  
Carbon Nanofibers ◽  
Mesoporous Carbon ◽  
Flexible Supercapacitors
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