si swarf wrapped by graphite sheets for li-ion battery electrode

Si Swarf Wrapped by Graphite Sheets for Li

Si Swarf Wrapped by Graphite Sheets for Li-Ion Battery Electrodes with Improved Overvoltage and Cyclability Jaeyoung Choi, Jiasheng Wang, and Taketoshi Matsumotoz The Institute of Scientific and Industrial Research, Osaka University, Ibaraki, Osaka 567-0047

Advances in Structure and Property Optimizations of

The increase of energy demands for potential portable electronics, electric vehicles, and smart power grids requires the batteries to have improved safety, higher energy/power density, longer cycle life, and lower cost. This review covers in-depth discussions of the battery reaction mechanisms and advanced techniques and highlights the structure and property optimizations of battery

Subeutectic Growth of Single

a Li-ion battery. The c-SiNW-G electrodes for Li-ion battery achieved excellent high-rate performance, producing a stable reversible capacity of 550 mAh g−1 after 100 cycles at 6.8 A g −1(78% of that at 0.1 A g ). Thus, with further development this process

US20110171371A1

Carbon nanotube-based compositions and methods of making an electrode for a Li ion battery are disclosed. It is an objective of the instant invention to disclose a composition for preparing an electrode of a lithium ion battery with incorporation of carbon nanotubes with more active material by having less conductive filler loading and less binder loading such that battery performance is enhanced.

Overview of Graphene as Anode in Lithium

Graphene, as a fabulously new-emerging carbonaceous material with an ideal two-dimensional rigid honeycomb structure, has drawn extensive attention in the field of material science due to extraordinary properties, including mechanical robustness, large specific

Nanoparticle/Graphene Composites: Toward High

ion battery. (Right) Photograph of a commercial lithium ion battery for powering a BlackBerry device. For anode materials, graphite is commonly used in LIBs due to its high Coulumbic efficiency (the ratio of the extracted lithium to the inserted relatively low cost

Expanding the Use of Silicon in Batteries, By Preventing

All three anode samples showed higher lithium-ion capacity than current graphite or silicon-carbon anodes used in Li-ion batteries and superior conductivity — on the order of 100 to 1,000 times higher than conventional silicon anodes, when MXene is added.

Solutions for the problems of silicon–carbon anode

Lithium-ion batteries are widely used in various industries, such as portable electronic devices, mobile phones, new energy car batteries, etc., and show great potential for more demanding applications like electric vehicles. Among advanced anode materials applied

Electronic Supplementary Information for

1 Electronic Supplementary Information for A Novel Bath Lily-Like Graphene Sheets-Wrapped Nano-Si Composite as a High Performance Anode Material for Li-ion Batteries † Yu-Shi He,a aPengfei Gao, Jun Chen,b aXiaowei Yang,a Xiao-zhen Liao,a Jun Yang* and

Hollow carbon nanospheres/silicon/alumina core

5. Chockla, A. M. et al. Silicon nanowire fabric as a lithium ion battery electrode material. J. Am. Chem. Soc. 133, 20914-20921 (2011). 6. Jeong, S. et al. Etched graphite with internally grown Si nanowires from pores as an anode for high density Li-ion batteries 7.

Porous CuCo 2 O 4 nanocubes wrapped by reduced

A composite of porous CuCo 2 O 4 nanocubes well wrapped by reduced graphene oxide (rGO) sheets has been synthesized by a facile microwave-assisted solvothermal reaction and applied as anode in lithium ion batteries (LIBs). The porous structure of the CuCo 2 O 4 nanocubes not only provides a high surface area for contact with the electrolyte, but also assists by accommodating volume change upon

Designing a hybrid electrode toward high energy density

Li-ion battery intercalation hybrid electrode Lithium-ion batteries (LIBs) currently dominate the secondary battery market for use in portable electronics and are widely regarded as a potential technology for electric vehicles and smart grids (1, 2).Nevertheless, LIB

From trash to treasure: Silicon waste finds new use in Li

The article, Si swarf wrapped by graphite sheets for Li-ion battery electrodes with improved overvoltage and cyclability, was published in Journal of The Electrochemical Society at DOI: https:/ / doi. org/ 10. 1149/ 1945-7111/ abdd7e About Osaka University

3D Si/C Fiber Paper Electrodes Fabricated using a Combined Electrospray

2014/5/6graphite, the overall electrode capacity of Si anodes is still low due to the low Si loading and heavy metal current collector. Li-ion batteries. [ 40 ] Here, 3D Si/C fi ber paper anodes are, for the fi rst time, fabricated by simultaneously electrospraying a nano-Si

Freestanding graphene/MnO2 cathodes for Li

Beilstein J. Nanotechnol. 2017, 8, 1932–1938. 1933 Manganese dioxide (MnO2) is one of the most promising metal oxide as a replacement for the Li-ion electrode material owing to its high theoretical capacity (308 mAh/g), environmental friendliness and low cost

Freestanding graphene/MnO2 cathodes for Li

Beilstein J. Nanotechnol. 2017, 8, 1932–1938. 1933 Manganese dioxide (MnO2) is one of the most promising metal oxide as a replacement for the Li-ion electrode material owing to its high theoretical capacity (308 mAh/g), environmental friendliness and low cost

From trash to treasure: Silicon waste finds new use in Li

Researchers at Osaka University used Si swarf and ultrathin graphite sheets to fabricate Li-ion battery electrodes with high areal capacity and current density at a reduced cost. Increasing generation of Si swarf as industrial waste and potential use of the high-performance batteries in electronic vehicles will allow their work to contribute to reduced greenhouse gas emissions and the

Lithium

----- Anode powder Collector Binder ' Solvent refining and resale I i (ancillary material) Mix graphite paste/slurry Coat paste/ slurry on Copper foil Compress for thickness Typical Manufacturing Process for Lithium-ion Battery Cells Sources: Gaines, L.; Cuenca, R. Cost of Li-ion Batteries for Vehicles, Argonne National Laboratory, Center for Transportation Research (CTR), May 2000.

Advances in Structure and Property Optimizations of

The increase of energy demands for potential portable electronics, electric vehicles, and smart power grids requires the batteries to have improved safety, higher energy/power density, longer cycle life, and lower cost. This review covers in-depth discussions of the battery reaction mechanisms and advanced techniques and highlights the structure and property optimizations of battery

Graphene/metal oxide composite electrode materials for energy

Graphene/metal oxide composite electrode materials for energy storage Zhong-Shuai Wua,b,1, Guangmin Zhoua,1, Li-Chang Yina, Wencai Rena, Feng Lia, Hui-Ming Chenga,n aShenyang National Laboratory for Materials Science, Institute of Metal Research

Porous CuCo 2 O 4 nanocubes wrapped by reduced

A composite of porous CuCo 2 O 4 nanocubes well wrapped by reduced graphene oxide (rGO) sheets has been synthesized by a facile microwave-assisted solvothermal reaction and applied as anode in lithium ion batteries (LIBs). The porous structure of the CuCo 2 O 4 nanocubes not only provides a high surface area for contact with the electrolyte, but also assists by accommodating volume change upon

Expanding the use of silicon in batteries, by preventing

The latest lithium-ion batteries on the market are likely to extend the charge-to-charge life of phones and electric cars by as much as 40 percent. This leap forward, which comes after more than a decade of incremental improvements, is happening because developers replaced the battery's graphite anode with one made from silicon. Research from Drexel University and Trinity College in Ireland

Advances in Structure and Property Optimizations of

The increase of energy demands for potential portable electronics, electric vehicles, and smart power grids requires the batteries to have improved safety, higher energy/power density, longer cycle life, and lower cost. This review covers in-depth discussions of the battery reaction mechanisms and advanced techniques and highlights the structure and property optimizations of battery materials

State of the Art and Future Research Needs for Multiscale

For example, in the characterization of a Li-ion battery's negative electrode by Shearing et al. [], the group found that the structure's tortuosity, porosity, and volume-specific surface area were highly heterogeneous in three dimensions.

Expanding the use of silicon in batteries, by preventing

The latest lithium-ion batteries on the market are likely to extend the charge-to-charge life of phones and electric cars by as much as 40 percent. This leap forward, which comes after more than a decade of incremental improvements, is happening because developers replaced the battery's graphite anode with one made from silicon. Research from Drexel University and Trinity College in Ireland

Nanoparticle/Graphene Composites: Toward High

ion battery. (Right) Photograph of a commercial lithium ion battery for powering a BlackBerry device. For anode materials, graphite is commonly used in LIBs due to its high Coulumbic efficiency (the ratio of the extracted lithium to the inserted relatively low cost

Hollow carbon nanospheres/silicon/alumina core

5. Chockla, A. M. et al. Silicon nanowire fabric as a lithium ion battery electrode material. J. Am. Chem. Soc. 133, 20914-20921 (2011). 6. Jeong, S. et al. Etched graphite with internally grown Si nanowires from pores as an anode for high density Li-ion batteries 7.

Fabrication of (Co,Mn)3O4/rGO Composite for Lithium Ion

2016/10/27Introduction Recently more attention has been paid to environment friendly, sustainable, and efficient device for energy conversion and storage devices.[1, 2] Li-ion batteries (LIBs) with high specific capacity have received worldwide interest and an increase in research output.[3–5] However, the conventional graphite anode fails to meet the requirements for the fast-growing markets, for

Research progress on silicon/carbon composite anode

Si/graphite 1702.9 975.7 after 100 cycles at 0.1 A/g 672.2 at 5 A/g Sheet-like morphology Magnesiothermic reduction [47] Si/graphite/PAN C 660 Stable over 30 cycles at 0.16 A/g — Embedding structure Thermally decomposed method [50] Si/graphite/carbon

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