scholarly journals Effect of Microporous Structure of Al2O3/PVdF_HFP Ceramic Coating Layers on Thermal Stability and Electrochemical Performance of Composite Separators for Lithium-Ion Batteries

2009 ◽  
Vol 12 (4) ◽  
pp. 324-328 ◽  
Author(s):  
Hyun-Seok Jeong ◽  
Kyu-Chul Kim ◽  
Sang-Young Lee
Keyword(s):  
Thermal Stability ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Ceramic Coating ◽  
Lithium Ion ◽  
Microporous Structure ◽  
Coating Layers

Ceramic composite separators coated with moisturized ZrO2 nanoparticles for improving the electrochemical performance and thermal stability of lithium ion batteries

2014 ◽  
Vol 16 (20) ◽  
pp. 9337-9343 ◽  
Author(s):  
Ki Jae Kim ◽  
Hyuk Kwon Kwon ◽  
Min-Sik Park ◽  
Taeeun Yim ◽  
Ji-Sang Yu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Electrochemical Performance ◽  
Physicochemical Properties ◽  
Lithium Ion Batteries ◽  
Ceramic Composite ◽  
Lithium Ion ◽  
Zro2 Nanoparticles ◽  
Thermal Stability Of

Micropore formation around the ZrO2 nanoparticles is caused by the moisture adsorbed on the surface of nanoparticles. This significantly affects the physicochemical properties of the composite separators.

Electrochemical performance and thermal stability of lithium ion batteries after immersion

2021 ◽  
pp. 109384
Author(s):  
Lin Zhang ◽  
Chunpeng Zhao ◽  
Yujun Liu ◽  
Jiajia Xu ◽  
Jinhua Sun ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Thermal Stability Of

scholarly journals Thermal runaway of Lithium-ion batteries employing LiN(SO2F)2-based concentrated electrolytes

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Junxian Hou ◽  
Languang Lu ◽  
Li Wang ◽  
Atsushi Ohma ◽  
Dongsheng Ren ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
Thermal Runaway ◽  
Exothermic Reactions ◽  
Safety Issues ◽  
Design Philosophy ◽  
Concentrated Electrolytes ◽  
Battery Material

Abstract Concentrated electrolytes usually demonstrate good electrochemical performance and thermal stability, and are also supposed to be promising when it comes to improving the safety of lithium-ion batteries due to their low flammability. Here, we show that LiN(SO2F)2-based concentrated electrolytes are incapable of solving the safety issues of lithium-ion batteries. To illustrate, a mechanism based on battery material and characterizations reveals that the tremendous heat in lithium-ion batteries is released due to the reaction between the lithiated graphite and LiN(SO2F)2 triggered thermal runaway of batteries, even if the concentrated electrolyte is non-flammable or low-flammable. Generally, the flammability of an electrolyte represents its behaviors when oxidized by oxygen, while it is the electrolyte reduction that triggers the chain of exothermic reactions in a battery. Thus, this study lights the way to a deeper understanding of the thermal runaway mechanism in batteries as well as the design philosophy of electrolytes for safer lithium-ion batteries.

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