-based materials have gained much attention as high capacity materials for lithium-ion battery because of their good cycle performance.However, the commercial use is still limited by their low initial coulombic efficiency as well as complex synthetic method.In this work, we propose a dual-type Si nanocrystal-embedded Si O matrix would be helpful in accommodating the volume changes of Si nanoparticles core during cycling.To further improve electrochemical performance, we employed additional carbon coating on the surface of the dual-type silicon nanocrystal-embedded Si O nanocomposites for sufficient electrical conductivity of active materials.The resulting carbon coated anode materials showed improved cycle performance with capacity retention of 80.3% after 100 cycles.The world is moving rapidly towards ubiquitous connectivity that will further change how and where people associate, gather and share information, and consume media.A canvassing of 2,558 experts and technology builders about where we will stand by the year 2025 finds striking patterns in their predictions.The invited respondents were identified in previous research about the future of the Internet, from those identified by the Pew Research Center’s Internet Project, and solicited through major technology-oriented listservs.
In their responses, these experts foresee an ambient information environment where accessing the Internet will be effortless and most people will tap into it so easily it will flow through their lives “like electricity.” They predict mobile, wearable, and embedded computing will be tied together in the Internet of Things, allowing people and their surroundings to tap into artificial intelligence-enhanced cloud-based information storage and sharing.
As Dan Lynch, founder of Interop and former director of computing facilities at SRI International, wrote, “The most useful impact is the ability to connect people.
From that, everything flows.” To a notable extent, the experts agree on the technology change that lies ahead, even as they disagree about its ramifications.
Most believe there will be: These experts expect existing positive and negative trends to extend and expand in the next decade, revolutionizing most human interaction, especially affecting health, education, work, politics, economics, and entertainment.
Most say they believe the results of that connectivity will be primarily positive.
However, when asked to describe the good and bad aspects of the future they foresee, many of the experts can also clearly identify areas of concern, some of them extremely threatening.