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Nano-sized silicon oxide electrode for the next generation lithium ion batteries

National Nanomanufacturing Network - July 17, 2014 - 3:15am
The lithium ion battery market has been growing steadily and has been seeking an approach to increase battery capacity while retaining its capacity for long recharging process. Structuring materials for electrode at the nanometre-length scale has been known to be an effective way to meet this demand; however, such nanomaterials would essentially need to be produced by high throughput processing in order to transfer these technologies to industry.This article published in the Science and Technology of Advanced Materials ("High throughput production of nanocomposite SiO x powders by plasma spray physical vapor deposition for negative electrode of lithium ion batteries" (http://dx.doi.org/doi:10.1088/1468-6996/15/2/025006)) reports an approach which potentially has an industrially compatible high throughputs to produce nano-sized composite silicon-based powders as a strong candidate for the negative electrode of the next generation high density lithium ion batteries. The authors have successfully produced nanocomposite SiO powders by plasma spray physical vapor deposition using low cost metallurgical grade powders at high throughputs. Using this method, they demonstrated an explicit improvement in the battery capacity cycle performance with these powders as electrode.The uniqueness of this processing method is that nanosized SiO composites are produced instantaneously through the evaporation and subsequent co-condensation of the powder feedstock. The approach is called plasma spray physical vapor deposition (PS-PVD). In Fig. 1, raw SiO and PS-PVD SiO composites are shown.The composites are 20 nm particles, which are composed of a crystalline Si core and SiOx shell. Furthermore, the addition of methane (CH4) promotes the reduction of SiO and results in the decreased SiO-shell thickness as shown in Fig. 2. The core-shell structure is formed in a single-step continuous processing.As a result, the irreversible capacity was effectively decreased, and half-cell batteries made of PS-PVD powders have exhibited improved initial efficiency and maintenance of capacity as high as 1000 mAhg-1 after 100 cycles at the same time.Source: National Institute for Materials Science

Parametric amplifier measures multiple qubit states

Nanotechweb - July 16, 2014 - 5:55am
Work could be important for developing fault tolerant quantum computing in the future.
Categories: Nanotechnology News

SPIE DSS Expo

InterNano - Upcoming Events - July 15, 2014 - 12:03pm
April 20, 2015 - Optics and Photonics for Sensing and Security The SPIE DSS Expo is a 450-company exhibition on optics, lasers, sensors, image processing, spectroscopy, infrared systems, thermal imaging, optoelectronic components, instrumentation, data analysis, and more. The East Coasts largest exhibition serves attendees of both SPIE DSS symposia and visitors from around the world looking for new products that improve capabilities at lower cost. Chemical and Biological SensingInfrared Sources, Detectors, and SystemsLasers and Other Light Sources, Laser Accessories, and Laser SystemsCameras and CCD ComponentsDisplaysElectronic Imaging and Fiber Optic Components, Equipment, and SystemsOptical Components, including Specialized Lenses and CoatingHigh Speed Imaging and SensingHigh-Precision Optics ManufacturingNanotechnology ApplicationsLaw Enforcement TechnologiesRobotics and Unmanned SystemsPLUS New Technology Demos and Displays

SPIE Defense + Security 2015

InterNano - Upcoming Events - July 15, 2014 - 11:59am
April 20, 2015 - The SPIE Defense + Security technical program focuses on sensors, imaging, and optical technologies for security, homeland defense, and military applications, with specific focus on applications in security, law enforcement, port/border security, and avionics/aerospace. Present your work at the most important scientific conferences for these critical technologies.

Harris & Harris Group Portfolio Company D-Wave Systems Closes a $28.4 Million Financing

Nanotech-Now - July 15, 2014 - 7:45am
Harris & Harris Group, Inc. (Nasdaq:TINY), an investor in transformative companies enabled by disruptive science, announced today its participation in portfolio company D-Wave Systems, Inc.'s $28.4 mi...
Categories: Nanotechnology News

Labs characterize carbon for batteries: Rice, Lawrence Livermore scientists calculate materials’ potential for use as electrodes

Nanotech-Now - July 15, 2014 - 7:45am
Lithium-ion batteries could benefit from a theoretical model created at Rice University and Lawrence Livermore National Laboratory that predicts how carbon components will perform as electrodes.
Categories: Nanotechnology News

Researchers discover boron 'buckyball'

Nanotech-Now - July 15, 2014 - 7:45am
The discovery of buckyballs — soccer-ball-shaped molecules of carbon — helped usher in the nanotechnology era. Now, Lai-Sheng Wang's research group and colleagues from China have shown that boron, car...
Categories: Nanotechnology News

Stanford researchers invent nanotech microchip to diagnose type-1 diabetes

Nanotech-Now - July 15, 2014 - 7:45am
An inexpensive, portable, microchip-based test for diagnosing type-1 diabetes could improve patient care worldwide and help researchers better understand the disease, according to the device's invento...
Categories: Nanotechnology News

Penn researchers successfully alleviate pulmonary inflammation with targeted drug delivery: Proof-of-concept study showed nanocarriers can aid drug delivery in mice

Nanotech-Now - July 15, 2014 - 7:45am
Pulmonary inflammation can cause shallow breathing and the lungs to become brittle in patients who experience multiple blood transfusions, sepsis, lung surgery and acute lung trauma. This complication...
Categories: Nanotechnology News

University of Illinois researchers demonstrate novel, tunable nanoantennas

Nanotech-Now - July 15, 2014 - 7:45am
An interdisciplinary research team at the University of Illinois has developed a novel, tunable nanoantenna that paves the way for new kinds of plasmonic-based optomechanical systems whereby plasmonic...
Categories: Nanotechnology News

Weizmann Institute scientists take another step down the long road toward quantum computers

Nanotech-Now - July 15, 2014 - 7:45am
Weizmann Institute scientists have demonstrated for the first time a photonic router - a quantum device based on a single atom that enables routing of single photons by single photons. This achievemen...
Categories: Nanotechnology News

New Method Suggested for Production of Polymeric Nanocarriers Used in Medical Industries

Nanotech-Now - July 15, 2014 - 7:45am
Iranian researchers from Amirkabir University of Technology produced polymeric nanocarriers that can be used in pharmaceutics and medical industries.
Categories: Nanotechnology News

Researchers Use Various Zinc Oxide Nanostructures to Boost Efficiency of Water Purification Process

Nanotech-Now - July 15, 2014 - 7:45am
An Iranian researcher in association with Swedish scientists studied the use of various nanostructures of zinc oxide in the improvement of the removal of industrial pollutants from water and the diffe...
Categories: Nanotechnology News

Nanoparticles Increase Primary Pressure Strength of Bone Cement

Nanotech-Now - July 15, 2014 - 7:45am
Iranian researchers from Materials and Energy Research Center succeeded in increasing primary pressure strength of artificial bone cement by using nanoparticles.
Categories: Nanotechnology News

Joining up the dots

Nanotechweb - July 14, 2014 - 3:35am
Carbon dots and quantum dots combine to make good WLEDs.
Categories: Nanotechnology News

Haydale Announces Collaboration Agreement with Swansea University’s Welsh Centre for Printing and Coatings (WCPC)

Nanotech-Now - July 13, 2014 - 7:45am
Haydale, the company focused on enabling technology for the commercialisation of graphene, is pleased to announce that it has signed a research and collaboration agreement with the Welsh Centre for Pr...
Categories: Nanotechnology News

A review article summarizes the state-of-the-art knowledge about graphene grain boundaries

Nanotech-Now - July 13, 2014 - 7:45am
The graphene produced by chemical vapor deposition is typically polycrystalline. Authors from the ICN2 Theoretical and Computational Nanoscience Group, led by ICREA Research professor Stephan Roche, t...
Categories: Nanotechnology News

IBM Announces $3 Billion Research Initiative to Tackle Chip Grand Challenges for Cloud and Big Data Systems: Scientists and engineers to push limits of silicon technology to 7 nanometers and below and create post-silicon future

Nanotech-Now - July 13, 2014 - 7:45am
IBM (NYSE: IBM) today announced it is investing $3 billion over the next 5 years in two broad research and early stage development programs to push the limits of chip technology needed to meet the em...
Categories: Nanotechnology News

Non-Enzyme Sensor Detects Lead, Hydrogen Peroxide

Nanotech-Now - July 13, 2014 - 7:45am
Iranian researchers in association with their Malaysian colleagues produced non-enzyme sensor that is able to measure poisonous and harmful species in industrial and medical applications.
Categories: Nanotechnology News

Bruker Introduces Inspire Nanoscale Chemical Mapping System: Featuring New PeakForce IR SPM Mode for Comprehensive Nanocharacterization

Nanotech-Now - July 13, 2014 - 7:45am
Bruker (NASDAQ: BRKR) today announced the release of Inspire™, the first integrated scanning probe microscopy (SPM) infrared system for 10-nanometer spatial resolution in chemical and materials proper...
Categories: Nanotechnology News