Moss-like growth of metal electrodes: On the role of competing faradaic reactions and fast-charging

Posted by klaurent Cornell

Kavli Affiliate: Lynden Archer | Summary:Uncontrolled crystal growth during electroreduction of reactive metals in liquid electrolytes produces porous, low-density, mossy metal deposits that grow primarily along the surface normal vector to a planar electrode substrate. The moss-like deposits are fragile and cause premature failure of batteries by chemical, physical, and mechanical pathways. Here we use […]


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Reacceleration of Galactic Cosmic Rays Beyond the Knee at the Termination Shock of a Cosmic-Ray-Driven Galactic Wind

Posted by klaurent Stanford

Kavli Affiliate: Roger Blandford | First 5 Authors: Payel Mukhopadhyay, Enrico Peretti, Noemie Globus, Paul Simeon, Roger Blandford | Summary: The origin of cosmic rays above the knee in the spectrum is an unsolved problem. We present a wind model in which interstellar gas flows along a non-rotating, expanding flux tube with a changing speed […]


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Dynamically Stable Radiation Pressure Propulsion of Flexible Lightsails for Interstellar Exploration

Posted by klaurent Caltech

Kavli Affiliate: Harry A. Atwater | First 5 Authors: Ramon Gao, Michael D. Kelzenberg, Harry A. Atwater, , | Summary: Lightsail spacecraft, propelled to relativistic velocities via photon pressure using high power density laser radiation, offer a potentially new route to space exploration within and beyond the solar system, extending to interstellar distances. Such missions […]


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