scholarly journals Plasmachemical Synthesis of Nanodispersed Silicon Powder and Its Use As Anode in Lithium-Ion Battery

2018 ◽  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Silicon Powder ◽  
Plasmachemical Synthesis

scholarly journals Electrochemical Preparation of Nano-Sized Silicon as a Lithium-Ion Battery Anode Material

2021 ◽  
Author(s):  
Lingling Shen ◽  
Dexi Wang ◽  
Ali Reza Kamali ◽  
Ming Li ◽  
Zhongning Shi
Keyword(s):  
Lithium Ion Battery ◽  
Anode Material ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Silicon Powder ◽  
Diffusion Control ◽  
Cyclic Voltammograms ◽  
Electrochemical Preparation ◽  
Pure Silicon ◽  
Battery Technology

Abstract Highly pure silicon is an important component in photovoltaic applications and has potential in battery technology. In this study, the electrochemical behavior of Si (IV) was discussed in a NaF−LiF−Na2SiO3−SiO2 electrolyte at 750 °C , and lithium-ion battery performance with electrodeposited silicon powder as anode material were investigated. The cyclic voltammograms illustrated that the reduction of Si(IV) on an Ag electrode followed an irreversible two-step, two-electron process: Si(IV) → Si(II) and Si(II) → Si(0). Both reduction steps involved diffusion control, and the diffusion coefficients were 1.18 and 1.22 × 10−6 cm2/s, respectively. Nanoscale spherical silicon was deposited between potentials of −1.0 to −1.6 V (vs. Pt) with support of X-ray diffraction patterns, Raman spectra, and scanning electron microscopy analysis. Combining the fabricated silicon with carbon, a Si@C composite anode material for lithium-ion batteries was prepared, and its specific capacity reached 1260 mAh/g. Notably, a capacity of 200 mAh/g was maintained over 100 cycles.

scholarly journals Selection of Optimum Binder for Silicon Powder Anode in Lithium-Ion Batteries Based on the Impact of Its Molecular Structure on Charge–Discharge Behavior

Coatings ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 732
Author(s):  
Shimoi ◽  
Komatsu ◽  
Tanaka
Keyword(s):  
Composite Material ◽  
Lithium Ion Batteries ◽  
Lithium Ion Battery ◽  
Active Material ◽  
Lithium Ion ◽  
Silicon Powder ◽  
Discharge Characteristics ◽  
The Impact ◽  
Charge Discharge ◽  
Silicon Particles

The high-capacity and optimal cycle characteristics of the silicon powder anode render it essential in lithium-ion batteries. The authors attempted to obtain a composite material by coating individual silicon particles of µm-order diameter with conductive carbon additive and resin to serve as a binder of an anode in a lithium-ion battery and thus improve its charge–discharge characteristics. Structural strain and hardness due to stress on the binder resin were alleviated by the adhesion between silicon or copper foil as a collector and the binder resin, preventing the systematic deterioration of the anode composite matrix immersed in electrolyte compositions including Li salt and fluoride. Moreover, the binder resin itself was confirmed to play a role of active material with occlusion and release of Li-ion. Furthermore, charge–discharge characteristics of the silicon powder anode active material strongly depend on the type of binder resin used; therefore, the binder resin used as composite material in rechargeable batteries should be carefully selected. Some resins for binding silicon particles were investigated for their mechanical and electrochemical properties, and a carbonized polyimide obtained a good charge–discharge cyclic property in a lithium-ion battery.

Preparation of carbon gel microspheres containing silicon powder for lithium ion battery anodes

Carbon ◽  
2004 ◽  
Vol 42 (12-13) ◽  
pp. 2573-2579 ◽  
Author(s):  
Takahiro Hasegawa ◽  
Shin R. Mukai ◽  
Yoji Shirato ◽  
Hajime Tamon
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Silicon Powder ◽  
Carbon Gel

Study on Charge and Discharge Phenomenon of Lithium Ion Battery under High Electric Field

2020 ◽  
Vol 140 (8) ◽  
pp. 650-655
Author(s):  
Shoki Tsuji ◽  
Yoji Fujita ◽  
Hiroaki Urushibata ◽  
Akihiko Kono ◽  
Ryoichi Hanaoka ◽  
...  
Keyword(s):  
Electric Field ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
High Electric Field

ADVANCED X-RAY VISUALIZATION OF FUEL CELL AND LITHIUM ION BATTERY

2018 ◽  
Author(s):  
Shuichiro Hirai ◽  
H. Naito ◽  
T. Yoshida ◽  
Takashi Sasabe ◽  
K. Kawamura ◽  
...  
Keyword(s):  
Fuel Cell ◽  
Lithium Ion Battery ◽  
Lithium Ion ◽  
X Ray
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