scholarly journals The triad “electrode – solid electrolyte interphase – electrolyte” as a ground for the use of conversion type reactions in lithium-ion batteries

2021 ◽  
Vol 12 (3) ◽  
pp. 226-279
Author(s):  
S. P. Kuksenko ◽  
◽  
H. O. Kaleniuk ◽  
Yu. O. Tarasenko ◽  
M. T. Kartel ◽  
...  

The solution to the problem of negative impact on the ecology of fossil fuel consumption is the use of electrochemical energy sources. The special attractiveness has shown of lithium power sources is highlighted and the need to develop new cheap electrode materials and electrolytes with unique properties. The peculiarities of the behavior of lithium and the formation of a layer of reaction products on its surface upon contact with a liquid organic electrolyte have considered. The analysis of the main problems and ways of their solution at use of conversion electrodes of the II type for lithium-ion batteries has carried out. Emphasis is placed on the need to use in the development of new electrode materials of such parameters as capacity loading and accumulated irreversible capacity of the electrodes. The triad “electrode – solid electrolyte interphase – electrolyte” is considered as a basis of a systematic approach to the creation of new generations of lithium power sources. The optimal scenarios have proposed for the formation of an effective solid electrolyte interphase on the surface of the electrodes. The advantages of electrolytes based on fluoroethylene carbonate with synergistic acting additives of vinylene carbonate and ethylene sulfite are described. A new strategy for the use of “secondary” silicon nanomaterials to prevent direct contact of its surface with the electrolyte has considered. It has shown that the solid electrolyte interphase is a dynamic system that self-organizes from the unstable state into a stable one. The electrochemical behavior of electrodes with silicon nanocomposites with high capacity loading and low accumulated irreversible capacity has described.

2006 ◽  
Vol 161 (2) ◽  
pp. 1275-1280 ◽  
Author(s):  
Liwei Zhao ◽  
Izumi Watanabe ◽  
Takayuki Doi ◽  
Shigeto Okada ◽  
Jun-ichi Yamaki

Author(s):  
Xiaogang Wu ◽  
Yinlong Xia ◽  
Jiuyu Du ◽  
Kun Zhang ◽  
Jinlei Sun

High-power-charging (HPC) behavior and extreme ambient temperature not only pose security risks on the operation of lithium-ion batteries but also lead to capacity degradation. Exploring the degradation mechanism under these two conditions is very important for safe and rational use of lithium-ion batteries. To investigate the influence of various charging-current rates on the battery-capacity degradation in a wide temperature range, a cycle-aging test is carried out. Then, the effects of HPC on the capacity degradation at various temperatures are analyzed and discussed using incremental capacity analysis and electrochemical impedance spectroscopy. The analysis results show that a large number of lithium ions accelerate the deintercalation when the HPC cycle rate exceeds 3 C, making the solid electrolyte interphase at the negative surface unstable and vulnerable to destruction, which results in irreversible consumption of active lithium. In addition, the decomposition of electrolyte is significantly promoted when the HPC temperature is more than 30°C, resulting in accelerated consumption of electrode materials and active lithium, which are the main reasons for the capacity degradation of lithium-ion batteries during HPC under various temperatures.


2020 ◽  
Vol 49 ◽  
pp. 335-338 ◽  
Author(s):  
Chong Yan ◽  
Yu-Xing Yao ◽  
Wen-Long Cai ◽  
Lei Xu ◽  
Stefan Kaskel ◽  
...  

2020 ◽  
Vol 49 (24) ◽  
pp. 8136-8142
Author(s):  
Wujie Dong ◽  
Xieyi Huang ◽  
Yan Jin ◽  
Miao Xie ◽  
Wei Zhao ◽  
...  

An artificial solid electrolyte interphase layer using lithium polyacrylate on spinel LiMn2O4 enables fast and durable aqueous lithium storage.


2016 ◽  
Vol 47 (2) ◽  
pp. 249-259 ◽  
Author(s):  
Miriam Steinhauer ◽  
Thomas Diemant ◽  
Christopher Heim ◽  
R. Jürgen Behm ◽  
Norbert Wagner ◽  
...  

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