Achieving a Stable Solid Electrolyte Interphase and Enhanced Thermal Stability by a Dual-Functional Electrolyte Additive toward a High-Loading LiNi0.8Mn0.1Co0.1O2 /Lithium Pouch Battery

2021 ◽  
Author(s):  
Hang Li ◽  
Zhipeng Wen ◽  
Dongzheng Wu ◽  
Weijie Ji ◽  
Zheng He ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
High Loading ◽  
Electrolyte Additive ◽  
Dual Functional

scholarly journals Deliberate modification of the solid electrolyte interphase (SEI) during lithiation of magnetite, Fe3O4: impact on electrochemistry

2017 ◽  
Vol 53 (98) ◽  
pp. 13145-13148 ◽  
Author(s):  
David C. Bock ◽  
Amy C. Marschilok ◽  
Kenneth J. Takeuchi ◽  
Esther S. Takeuchi
Keyword(s):  
Solid Electrolyte ◽  
Solid Electrolyte Interphase ◽  
Electrolyte Additive ◽  
Magnetite Fe3o4

We report the first chemical and thermal evidence of solid electrolyte interphase modification on Fe3O4 electrodes via FEC electrolyte additive.

scholarly journals New insights into the electroreduction of ethylene sulfite as an electrolyte additive for facilitating solid electrolyte interphase formation in lithium ion batteries

2017 ◽  
Vol 19 (9) ◽  
pp. 6861-6870 ◽  
Author(s):  
Youmin Sun ◽  
Yixuan Wang
Keyword(s):  
Solid Electrolyte ◽  
Lithium Ion Batteries ◽  
Energy Barrier ◽  
Lower Energy ◽  
Solid Electrolyte Interphase ◽  
Lithium Ion ◽  
Electrolyte Additive ◽  
Ethylene Sulfite

The electroreduction of ES, an additive of the electrolyte of lithium-ion batteries was theoretically reinvestigated. The newly located concerted pathway has lower energy barrier than the stepwise pathway in literature.

Improved solid electrolyte interphase and Li-storage performance of Si/graphite anode with ethylene sulfate as electrolyte additive

2020 ◽  
Vol 13 (07) ◽  
pp. 2051041
Author(s):  
Wenjie Zhang ◽  
Siming Yang ◽  
Shuai Heng ◽  
Ximei Gao ◽  
Yan Wang ◽  
...  
Keyword(s):  
Solid Electrolyte ◽  
Electrochemical Impedance ◽  
Solid Electrolyte Interphase ◽  
Graphite Anode ◽  
Cyclic Voltammogram ◽  
Electrolyte Additive ◽  
Graphite Composite ◽  
Storage Performance ◽  
Ethylene Sulfate ◽  
Li Storage

Silicon/graphite composite anodes have drawn extensive attention in the field of power Li-ion batteries for application in electric vehicles because of their much higher capacity than that of traditional graphite anodes. In this work, ethylene sulfate (1,3,2-dioxathiolane-2,2-dioxide, DTD) is investigated as an electrolyte additive to improve the Li-storage performance of silicon/graphite composite anode. The electrochemical behavior of silicon/graphite anode including cyclic voltammogram, discharge/charge performance at various current density and during long-term cycling, and electrochemical impedance is systematically studied by adding different amounts of DTD into electrolyte. The effects of DTD on the solid/electrolyte interphase (SEI) film are analyzed through scanning electron microscopy, X-ray photoelectron and Fourier transform infrared spectroscopy. It is found that DTD participates into the film-formation process through its reductive decomposition reactions on electrode surface, producing a thin, uniform and stable SEI. The Li-storage performance of silicon/graphite anode is improved at an optimized addition amount of DTD.

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