Janus behaviour of LiFSI- and LiPF6-based electrolytes for Li metal batteries: chemical corrosion versus galvanic corrosion

2021 ◽  
Author(s):  
Bomee Kwon ◽  
Jeonghyeop Lee ◽  
Hyunchul Kim ◽  
Dong-min Kim ◽  
Kyobin Park ◽  
...  
Keyword(s):  
Energy Density ◽  
Redox Potential ◽  
Galvanic Corrosion ◽  
Specific Capacity ◽  
High Energy ◽  
Redox Couple ◽  
High Energy Density ◽  
High Specific Capacity ◽  
Chemical Corrosion ◽  
Li Batteries

Li metal has been considered a promising anode for high energy density Li batteries because of the lowest redox potential and high specific capacity of the Li/Li+ redox couple. However,...

scholarly journals High energy density MnO4−/MnO42− redox couple for alkaline redox flow batteries

2016 ◽  
Vol 52 (97) ◽  
pp. 14039-14042 ◽  
Author(s):  
Alejandro N. Colli ◽  
Pekka Peljo ◽  
Hubert H. Girault
Keyword(s):  
Energy Density ◽  
Redox Potential ◽  
Room Temperature ◽  
High Energy ◽  
Redox Couple ◽  
High Energy Density ◽  
High Solubility ◽  
Redox Flow Batteries ◽  
Electrochemical Reversibility ◽  
Flow Batteries

The MnO4−/MnO42− redox couple has a positive redox potential, high electrochemical reversibility and high solubility, up to 3.62 M at room temperature.

ZIF-67 derived tricobalt tetroxide induced synthesis of a sandwich layered Co3O4/NiNH electrode material for high performance supercapacitors

2021 ◽  
Author(s):  
Wei Hong ◽  
Yawen Li ◽  
Yiru Wu ◽  
Guifang Li ◽  
Lishan Jia
Keyword(s):  
Energy Density ◽  
Electrode Material ◽  
Self Assembly ◽  
High Performance ◽  
Oxygen Vacancies ◽  
Specific Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Cycle Stability ◽  
High Specific Capacity

The fine Co3O4 particles derived from ZIF-67 induced self-assembly of NiNH to form sandwich layered Co3O4/NiNH with oxygen vacancies which showed high specific capacity. A Co3O4/NiNH//AC supercapacitor has high energy density and cycle stability.

scholarly journals Novel Lithium-Ion Capacitor Based on a NiO-rGO Composite

Materials ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3586
Author(s):  
Qi An ◽  
Xingru Zhao ◽  
Shuangfu Suo ◽  
Yuzhu Bai
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Power Density ◽  
High Power ◽  
Specific Capacity ◽  
Lithium Ion ◽  
High Energy ◽  
Cycle Life ◽  
High Energy Density ◽  
Lithium Ion Capacitor

Lithium-ion capacitors (LICs) have been widely explored for energy storage. Nevertheless, achieving good energy density, satisfactory power density, and stable cycle life is still challenging. For this study, we fabricated a novel LIC with a NiO-rGO composite as a negative material and commercial activated carbon (AC) as a positive material for energy storage. The NiO-rGO//AC system utilizes NiO nanoparticles uniformly distributed in rGO to achieve a high specific capacity (with a current density of 0.5 A g−1 and a charge capacity of 945.8 mA h g−1) and uses AC to provide a large specific surface area and adjustable pore structure, thereby achieving excellent electrochemical performance. In detail, the NiO-rGO//AC system (with a mass ratio of 1:3) can achieve a high energy density (98.15 W h kg−1), a high power density (10.94 kW kg−1), and a long cycle life (with 72.1% capacity retention after 10,000 cycles). This study outlines a new option for the manufacture of LIC devices that feature both high energy and high power densities.

Nitrogen-Doped Multi-Channel Carbon Nanofibers Incorporated with Nickel Nanoparticles as Multifunctional Modification of Separator for Ultra Stable Li-S Batteries

2021 ◽  
Author(s):  
Zhikang Wang ◽  
Guiqiang Cao ◽  
Da Bi ◽  
Tian-Xiong Tan ◽  
Qingxue Lai ◽  
...  
Keyword(s):  
Nickel Nanoparticles ◽  
Specific Capacity ◽  
High Energy ◽  
High Energy Density ◽  
Storage Device ◽  
Energy Storage Device ◽  
High Specific Capacity ◽  
Nitrogen Doped ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Lithium-Sulfur batteries have been regarded as the most promising electrochemical energy storage device in consideration of their satisfactory high specific capacity and high energy density. However, the inferior conversion efficiency...

scholarly journals High Energy Density Rechargeable Aqueous Lithium Batteries with an Aqueous Hydroquinone Sulfonic Acid and Benzoquinone Sulfonic Acid Redox Couple Cathode

2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Hiroki Takagi ◽  
Koichi Kakimoto ◽  
Daisuke Mori ◽  
Sou Taminato ◽  
Yasuo Takeda ◽  
...  
Keyword(s):  
Energy Density ◽  
Sulfonic Acid ◽  
Acetic Acid Solution ◽  
Lithium Ion ◽  
High Energy ◽  
Open Circuit ◽  
Redox Couple ◽  
High Energy Density ◽  
Aqueous Acetic Acid ◽  
Ion Conducting

The demand for high energy density rechargeable batteries beyond lithium-ion batteries has increased for electric vehicles. In the present study, a novel high energy density rechargeable aqueous lithium battery was proposed. The battery was composed of a lithium metal anode, a lithium-stable non-aqueous electrolyte, a water-stable lithium-ion conducting solid electrolyte of Li1.4Al0.4Ge0.2Ti1.4(PO4)3-epoxy-TiO2 separator, and a hydroquinone sulfonic acid (HQS)/benzoquinone sulfonic acid (BQS) redox couple in an aqueous acetic acid solution (HAc). An open-circuit voltage of 3.7 V at 25 °C was recorded, and the theoretical energy density of the battery based on the reaction 2Li + BQS + 2H2O = 2 LiOH + HQS was 833 Whkg-1, about two times higher than that of the lithium-ion battery. The battery was successfully cycled at 0.5 mA cm-2 and 25 °C with low polarization.

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.

Li/C composites as anodes for high energy density rechargeable Li batteries

2019 ◽  
Vol 40 (4) ◽  
pp. 040401
Author(s):  
Liping Wang ◽  
Cheng Jiang ◽  
Xiaobin Niu
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Li Batteries
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