Mixed Electrolyte Solutions of Propylene Carbonate and Dimethoxyethane for High Energy Density Batteries

1980 ◽  
Vol 127 (4) ◽  
pp. 877-879 ◽  
Author(s):  
Y. Matsuda ◽  
H. Satake
Keyword(s):  
Energy Density ◽  
Propylene Carbonate ◽  
Electrolyte Solutions ◽  
High Energy ◽  
High Energy Density ◽  
Mixed Electrolyte ◽  
Mixed Electrolyte Solutions

Approaching the maximum capacity of nickel-rich LiNi0.8Co0.1Mn0.1O2 cathodes by charging to high-voltage in a non-flammable electrolyte of propylene carbonate and fluorinated linear carbonates

2019 ◽  
Vol 55 (9) ◽  
pp. 1256-1258 ◽  
Author(s):  
Hieu Quang Pham ◽  
Eui-Hyung Hwang ◽  
Young-Gil Kwon ◽  
Seung-Wan Song
Keyword(s):  
Energy Density ◽  
Propylene Carbonate ◽  
High Voltage ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Lithium Metal ◽  
Maximum Capacity ◽  
Lithium Metal Batteries ◽  
First Time

We report for the first time a promising approach to achieve the maximum capacity of LiNi0.8Co0.1Mn0.1O2 cathodes in a non-flammable electrolyte for safe and high-energy density lithium-ion and lithium metal batteries.

Hexamethylene diisocyanate as an electrolyte additive for high-energy density lithium ion batteries

2015 ◽  
Vol 3 (16) ◽  
pp. 8246-8249 ◽  
Author(s):  
Yang Liu ◽  
Yinping Qin ◽  
Zhe Peng ◽  
Jingjing Zhou ◽  
Changjin Wan ◽  
...  
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Propylene Carbonate ◽  
Interfacial Layer ◽  
Lithium Ion ◽  
High Energy ◽  
Hexamethylene Diisocyanate ◽  
High Energy Density ◽  
Electrolyte Additive

Hexamethylene diisocyanate can chemically react with the onium ion produced by the oxidation of propylene carbonate andin situgenerate a novel interfacial layer that is stable at high potential.

scholarly journals High Energy-Density Capacitor Based on Ammonium Salt Type Ionic Liquids and Their Mixing Effect by Propylene Carbonate

2005 ◽  
Vol 152 (4) ◽  
pp. A710 ◽  
Author(s):  
Yong-Jung Kim ◽  
Yutaka Matsuzawa ◽  
Shinya Ozaki ◽  
Ki Chul Park ◽  
Chan Kim ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Energy Density ◽  
Propylene Carbonate ◽  
Ammonium Salt ◽  
High Energy ◽  
High Energy Density ◽  
Mixing Effect

Improving Safe Properties of Pp13TFSI Based Electrolyte for High-Voltage Graphite/Li[Li0.2Mn0.54Ni0.13Co0.13]O2 Battery

2015 ◽  
Vol 1094 ◽  
pp. 209-213
Author(s):  
Hui Feng Li ◽  
Gen Ban Sun ◽  
Qiang Wang ◽  
Lin Na Sun ◽  
Fun Bin Jiang
Keyword(s):  
Energy Density ◽  
Lithium Ion Batteries ◽  
Electric Vehicles ◽  
Ethylene Carbonate ◽  
Lithium Ion ◽  
High Energy ◽  
High Energy Density ◽  
Electrochemical Characteristics ◽  
Mixed Electrolytes ◽  
Mixed Electrolyte

Safety is the key-feature of high energy density lithium-ion batteries and thermal stability of the electrolytes is crucial. In this work, the thermal and flammability properties of mixed electrolytes based on the conventional ethylene carbonate (EC), dimethyl carbonate (DMC), ethyl methyl carbonate (EMC) (1:1:1 v/v/v), 1M LiPF6 and the hydrophobic ionic liquid (IL) N-methyl-N-propylpiperidinium bis (trifluoromethanesulfonyl) imide (Pp13TFSI) have been investigated. The mixed electrolyte is observed to be nonflammable at the Pp13TFSI contents of more than 40 vol.%. And physical and electrochemical characteristics of high energy density lithium ion batteries based on Li [Li0.2Mn0.54Ni0.13Co0.13]O2 as the cathode and artificial graphite as the anode with mixed electrolyte are also investigated. The cell of graphite/ Li [Li0.2Mn0.54Ni0.13Co0.13]O2 with 1 mol/L LiPF6/40%Pp13TFSI + 60% (EC+DMC+EMC) (1/1/1,v/v/v) electrolyte shows first charge capacity of 313.8 mAh g-1 and discharge capacity of 201.8 mAh g-1, respectively. Moreover, the nail penetration tests are carried out on the charged lithium-ion cells after formation, and the results show no explosion, ignition, or thermal runaway. These results suggest that the IL has potential to improve the safety of lithium ion batteries and can be used to fabricate the high energy density lithium ion batteries for electric vehicles and hybrid electric vehicles.

A HIGH ENERGY DENSITY ZINC/OXYGEN BATTERY SYSTEM

1966 ◽  
Author(s):  
S. CHODOSH ◽  
E. KATSOULIS ◽  
M. ROSANSKY
Keyword(s):  
Energy Density ◽  
High Energy ◽  
High Energy Density ◽  
Battery System

Efficient Co-Harvesting of Solar Energy and Low-Grade Heat by Molecular Photoswitches for High Energy Density, Long-Term Stable Solar Thermal Battery

2019 ◽  
Author(s):  
Zhao-Yang Zhang ◽  
Tao LI
Keyword(s):  
Energy Density ◽  
Solar Energy ◽  
High Performance ◽  
High Energy ◽  
Solar Thermal ◽  
High Energy Density ◽  
Low Grade ◽  
Thermal Battery ◽  
Low Grade Heat

Solar energy and ambient heat are two inexhaustible energy sources for addressing the global challenge of energy and sustainability. Solar thermal battery based on molecular switches that can store solar energy and release it as heat has recently attracted great interest, but its development is severely limited by both low energy density and short storage stability. On the other hand, the efficient recovery and upgrading of low-grade heat, especially that of the ambient heat, has been a great challenge. Here we report that solar energy and ambient heat can be simultaneously harvested and stored, which is enabled by room-temperature photochemical crystal-to-liquid transitions of small-molecule photoswitches. The two forms of energy are released together to produce high-temperature heat during the reverse photochemical phase change. This strategy, combined with molecular design, provides high energy density of 320-370 J/g and long-term storage stability (half-life of about 3 months). On this basis, we fabricate high-performance, flexible film devices of solar thermal battery, which can be readily recharged at room temperature with good cycling ability, show fast rate of heat release, and produce high-temperature heat that is >20<sup> o</sup>C higher than the ambient temperature. Our work opens up a new avenue to harvest ambient heat, and demonstrate a feasible strategy to develop high-performance solar thermal battery.

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