Solar-enhanced hybrid lithium–oxygen batteries with a low voltage and superior long-life stability

2020 ◽  
Vol 56 (88) ◽  
pp. 13642-13645
Author(s):  
Hao Gong ◽  
Hairong Xue ◽  
Bin Gao ◽  
Yang Li ◽  
Xingyu Yu ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Low Voltage ◽  
High Energy ◽  
Charge Voltage ◽  
Long Term Stability ◽  
Long Life ◽  
High Energy Efficiency ◽  
Lithium Oxygen Batteries ◽  
Low Charge

Coating α-Fe2O3 with NiOOH results in enhanced electrochemical properties, and the as-assembled hybrid lithium–oxygen batteries deliver a low charge voltage of 3.03 V, high energy efficiency of 88%, and long-term stability for over 350 hours.

scholarly journals A Novel Cr2O3/MnO2-x Electrode for Lithium-Oxygen Batteries with Low Charge Voltage and High Energy Efficiency

2021 ◽  
Vol 9 ◽  
Author(s):  
Zhaohuan Wei ◽  
Zhiyuan Zhang ◽  
Yaqi Ren ◽  
Hong Zhao
Keyword(s):  
Energy Efficiency ◽  
Specific Capacity ◽  
Rate Capability ◽  
High Energy ◽  
Charge Voltage ◽  
Calcination Process ◽  
Anodic Electrodeposition ◽  
High Energy Efficiency ◽  
Lithium Oxygen Batteries ◽  
Low Charge

A high energy efficiency, low charging voltage cathode is of great significance for the development of non-aqueous lithium-oxygen batteries. Non-stoichiometric manganese dioxide (MnO2-x) and chromium trioxide (Cr2O3) are known to have good catalytic activities for the discharging and charging processes, respectively. In this work, we prepared a cathode based on Cr2O3 decorated MnO2-x nanosheets via a simple anodic electrodeposition-electrostatic adsorption-calcination process. This combined fabrication process allowed the simultaneous introduction of abundant oxygen vacancies and trivalent manganese into the MnO2-x nanosheets, with a uniform load of a small amount of Cr2O3 on the surface of the MnO2-x nanosheets. Therefore, the Cr2O3/MnO2-x electrode exhibited a high catalytic effect for both discharging and charging, while providing high energy efficiency and low charge voltage. Experimental results show that the as-prepared Cr2O3/MnO2-x cathode could provide a specific capacity of 6,779 mA·h·g−1 with a terminal charge voltage of 3.84 V, and energy efficiency of 78%, at a current density of 200 mA·g−1. The Cr2O3/MnO2-x electrode also showed good rate capability and cycle stability. All the results suggest that the as-prepared Cr2O3/MnO2-x nanosheet electrode has great prospects in non-aqueous lithium-oxygen batteries.

Resilient Low Voltage Accelerators for High Energy Efficiency

2019 ◽  
Author(s):  
Nandhini Chandramoorthy ◽  
Karthik Swaminathan ◽  
Martin Cochet ◽  
Arun Paidimarri ◽  
Schuyler Eldridge ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Low Voltage ◽  
High Energy ◽  
High Energy Efficiency

A RuO2 nanoparticle-decorated buckypaper cathode for non-aqueous lithium–oxygen batteries

2015 ◽  
Vol 3 (37) ◽  
pp. 19042-19049 ◽  
Author(s):  
P. Tan ◽  
W. Shyy ◽  
T. S. Zhao ◽  
X. B. Zhu ◽  
Z. H. Wei
Keyword(s):  
Energy Efficiency ◽  
Specific Capacity ◽  
High Energy ◽  
Current Collectors ◽  
Polymeric Binders ◽  
High Energy Efficiency ◽  
Lithium Oxygen Batteries ◽  
Additional Current

A RuO2 nanoparticle-decorated buckypaper cathode does not require additional current collectors and polymeric binders, offering promise for a high-practical specific capacity, high-energy efficiency, and stable electrode for non-aqueous lithium–oxygen batteries.

A high energy efficiency and long life aqueous Zn–I2 battery

2020 ◽  
Vol 8 (7) ◽  
pp. 3785-3794 ◽  
Author(s):  
Wei Li ◽  
Kangli Wang ◽  
Kai Jiang
Keyword(s):  
Energy Efficiency ◽  
High Energy ◽  
Strong Adsorption ◽  
Long Life ◽  
High Energy Efficiency

The long life of an aqueous Zn–I2 battery is enabled by an SEI on Zn and by the strong adsorption of I2.

A Folded Voltage-Combiners Biased Amplifier for Low Voltage and High Energy-Efficiency Applications

2020 ◽  
Vol 67 (2) ◽  
pp. 230-234 ◽  
Author(s):  
Ricardo Povoa ◽  
Nuno Lourenco ◽  
Ricardo Martins ◽  
Antonio Canelas ◽  
Nuno Horta ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Low Voltage ◽  
High Energy ◽  
High Energy Efficiency

scholarly journals Graphene-based quasi-solid-state lithium–oxygen batteries with high energy efficiency and a long cycling lifetime

2018 ◽  
Vol 10 (11) ◽  
pp. 1037-1045 ◽  
Author(s):  
Gang Huang ◽  
Jiuhui Han ◽  
Chuchu Yang ◽  
Ziqian Wang ◽  
Takeshi Fujita ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Solid State ◽  
High Energy ◽  
High Energy Efficiency ◽  
Lithium Oxygen Batteries

A Mo2C/Carbon Nanotube Composite Cathode for Lithium–Oxygen Batteries with High Energy Efficiency and Long Cycle Life

ACS Nano ◽  
2015 ◽  
Vol 9 (4) ◽  
pp. 4129-4137 ◽  
Author(s):  
Won-Jin Kwak ◽  
Kah Chun Lau ◽  
Chang-Dae Shin ◽  
Khalil Amine ◽  
Larry A Curtiss ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Carbon Nanotube ◽  
Composite Cathode ◽  
High Energy ◽  
Cycle Life ◽  
Long Cycle ◽  
Long Cycle Life ◽  
High Energy Efficiency ◽  
Carbon Nanotube Composite ◽  
Lithium Oxygen Batteries

A Rechargeable Zn–Air Battery with High Energy Efficiency and Long Life Enabled by a Highly Water‐Retentive Gel Electrolyte with Reaction Modifier

2020 ◽  
Vol 32 (22) ◽  
pp. 1908127 ◽  
Author(s):  
Zhishuang Song ◽  
Jia Ding ◽  
Bin Liu ◽  
Xiaorui Liu ◽  
Xiaopeng Han ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
High Energy ◽  
Gel Electrolyte ◽  
Air Battery ◽  
Long Life ◽  
High Energy Efficiency

A long cycle life, high coulombic efficiency iron molten air battery

2017 ◽  
Vol 1 (3) ◽  
pp. 474-481 ◽  
Author(s):  
Baochen Cui ◽  
Wei Xiang ◽  
Shuzhi Liu ◽  
Hongyu Xin ◽  
Xianjun Liu ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Coulombic Efficiency ◽  
High Energy ◽  
Cycle Life ◽  
Long Cycle ◽  
Long Cycle Life ◽  
Air Battery ◽  
High Energy Efficiency ◽  
Cycling Life

Despite the recent advancements in iron molten air batteries, great challenges still remain to realize cycling stability, high energy efficiency and a long-term cycling life.

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