scholarly journals High Specific Energy Li7La3Zr2O12 Solid Electrolyte Based Thermal Battery

2021 ◽  
Author(s):  
Min Yang ◽  
Licai Fu ◽  
Zeshunji Luo ◽  
Jiajun Zhu ◽  
Wulin Yang ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Specific Energy ◽  
Internal Resistance ◽  
Specific Power ◽  
Thermal Battery ◽  
Application Range ◽  
Large Current ◽  
High Specific Energy ◽  
First Time ◽  
High Voltage Discharge

Abstract Garnet-type Ta-doped Li7La3Zr2O12 (LLZTO) solid electrolyte has been widely investigated for secondary Li ionic or metal batteries at ambient temperature. Because of the increasing ionic conductivity of LLZTO with temperature, we applied the LLZTO solid electrolyte to thermal battery working at 550℃. The LLZTO presents ultrahigh specific energy as the discharge specific energy and specific power is 605 W h/kg and 2.74 kW/kg at 100 mA/cm2 with a cut-off voltage of 1.8 V, respectively. This is larger than the LiF–LiCl-LiBr electrolyte which is commonly used in thermal battery with a specific energy of 514 W h/kg. The internal resistance of the single cell reaches 0.65 Ω, but the specific energy remains at about 400 W h/kg as the current density increases to 400 mA/cm2. We report the application of LLZTO in thermal battery with high specific energy, large current, and high voltage discharge for the first time, broadening the application range of solid electrolytes.

CuCo2O4 nanoparticles wrapped in a rGO aerogel composite as an anode for a fast and stable Li-ion capacitor with ultra-high specific energy

2021 ◽  
Author(s):  
Muhammad Sajjad ◽  
Muhammad Sufyan Javed ◽  
Muhammad Imran ◽  
Zhiyu Mao
Keyword(s):  
Specific Energy ◽  
Specific Power ◽  
Practical Application ◽  
Aerogel Composite ◽  
Li Ion ◽  
High Specific Energy ◽  
Application Requirements

To meet practical application requirements, high specific energy and specific power and excellent cyclability are highly desired.

An MnO2 nanosheet@nitrogen-doped graphene aerogel enables high specific energy and high specific power for supercapacitors and Zn–air batteries

2021 ◽  
Author(s):  
Hui Zhao ◽  
Rijuan Jiang ◽  
Yong Zhang ◽  
Beibei Xie ◽  
Jiali Fu ◽  
...  
Keyword(s):  
Specific Energy ◽  
High Ratio ◽  
Specific Power ◽  
Nitrogen Doped ◽  
Unit Cells ◽  
High Specific Power ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
High Specific Energy ◽  
Mno2 Nanosheet

Ultrathin MnO2 nanosheets (MNSs) with calculated high ratio of exposed surface unit cells on conductive nitrogen-doped graphene assure the assembled aerogel high specific energy and high specific power in supercapacitors and Zn–air batteries.

Binary vanadium pentoxide carbon-graphene foam composites derived from dark red hibiscus sabdariffa for advanced asymmetric supercapacitor

2021 ◽  
Vol 379 (2209) ◽  
Author(s):  
B. D. Ngom ◽  
N. M. Ndiaye ◽  
N. F. Sylla ◽  
B. K. Mutuma ◽  
N. Manyala ◽  
...  
Keyword(s):  
Vanadium Pentoxide ◽  
Specific Energy ◽  
Electrode Materials ◽  
Negative Electrode ◽  
Specific Power ◽  
Portable Devices ◽  
Energy Storage Devices ◽  
Graphene Foam ◽  
High Specific Energy ◽  
Asymmetric Device

The development of advanced electrode materials derived from biomass for the next generation of energy storage devices, such as supercapacitors with high specific energy and specific power coupled with a good cycle stability, is required to meet the high demand for electric vehicles and portable devices. In this study, sustainable binary vanadium pentoxide carbon-graphene foam composites (V 2 O 5 @C-R 2 HS/GF) were synthesized using a solvothermal method. The X-ray diffraction, Raman and FTIR techniques were used to study the structural properties of the composites (V 2 O 5 @C-R 2 HS/20 mg GF and V 2 O 5 @C-R 2 HS/40 mg GF). The SEM micrographs displayed an accordion-like morphology resulting from the graphene foam-modified V 2 O 5 @C-R 2 HS composite. The V 2 O 5 @C-R 2 HS, V 2 O 5 @C-R 2 HS/20 mg GF and V 2 O 5 @C-R 2 HS/40 mg GF composites were evaluated in a three-electrode configuration using 6 M potassium hydroxide (KOH) as an aqueous electrolyte. Furthermore, a two-electrode device was carried out by fabricating an asymmetric device (V 2 O 5 @C-R 2 HS/GF//AC) where V 2 O 5 @C-R 2 HS/20 mg GF was used as a positive electrode and activated carbon (AC) as a negative electrode at a cell voltage of 1.6 V in 6 M KOH. The V 2 O 5 @C-R 2 HS/GF//AC showed a high specific energy and specific power values of 55 W h kg −1 and 707 W kg −1 , respectively, at a specific current of 1 A g −1 . The asymmetric device presented a good stability test showing 99% capacity retention up to 10 000 cycles and was confirmed by the floating time up to 150 h with specific energy increasing 23.6% after the first 10 h. This article is part of the theme issue ‘Bio-derived and bioinspired sustainable advanced materials for emerging technologies (part 2)’.

Novel NiCl2 Nanosheets Synthesized via Chemical Vapor Deposition with High Specific Energy for Thermal Battery

2020 ◽  
Vol 12 (31) ◽  
pp. 34755-34762
Author(s):  
Zeshunji Luo ◽  
Xiaoxia Lin ◽  
Licheng Tang ◽  
Yong Feng ◽  
Yufan Gui ◽  
...  
Keyword(s):  
Chemical Vapor Deposition ◽  
Specific Energy ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Thermal Battery ◽  
High Specific Energy

Research on Electric Energy Conversion of Maglev Flywheel Battery

2012 ◽  
Vol 608-609 ◽  
pp. 1111-1115
Author(s):  
Xu Jun Lv ◽  
Hua Chun Wu ◽  
Gao Gong ◽  
Ye Fa Hu
Keyword(s):  
Control System ◽  
Energy Storage ◽  
Energy Conversion ◽  
Specific Energy ◽  
Circuit Simulation ◽  
Electric Energy ◽  
Specific Power ◽  
Pwm Converter ◽  
System A ◽  
High Specific Energy

Flywheel energy storage has many advantages such as high specific energy, big specific power, small size, fast charge etc. This study describes the energy conversion control system of mag¬lev flywheel battery using PWM converter, established the model of control system. A circuit simulation of maglev flywheel battery electric energy conversion is proposed and discussed to verify the effectiveness of the design, which is of great significance for the development of flywheel energy conversion.

Development of high-specific-energy batteries for electric vehicles. Progress report, August 1972--January 1973

1973 ◽  
Author(s):  
E J Cairns ◽  
P A Nelson ◽  
E C Gay ◽  
R K Steunenberg ◽  
W J Walsh ◽  
...  
Keyword(s):  
Electric Vehicles ◽  
Specific Energy ◽  
Progress Report ◽  
High Specific Energy
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