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Curiosity Resumes Science after Analysis of Voltage Issue

NASA’s Mars rover Curiosity resumed full science operations on Saturday, Nov. 23.

Activities over the weekend included use of Curiosity’s robotic arm to deliver portions of powdered rock to a laboratory inside the rover. The powder has been stored in the arm since the rover collected it by drilling into the target rock “Cumberland” six months ago. Several portions of the powder have already been analyzed. The laboratory has flexibility for examining duplicate samples in different ways. (more…)

Study Reveals New Factor that could Limit the Life of Hybrid and Electric Car Batteries

By Guest PostDecember 25, 2012Science, Technologyautomotive industry, battery electrodes, battery life, bharat bhushan, car batteries, cathode, current collector, electric car batteries, electrical system, electrodes, electron transfer, factor, giorgio rizzoni, gregory downing, hybrid, hybrid electric cars, life, limit, lithium ion batteries, ndp, neutron depth profiling, ohio state university, set of particles, sheet of copper, shrikant nagpure, suresh babu, yann guezennec

COLUMBUS, Ohio – A new study of the batteries commonly used in hybrid and electric-only cars has revealed an unexpected factor that could limit the performance of batteries currently on the road.

Researchers led by Ohio State University engineers examined used car batteries and discovered that over time lithium accumulates beyond the battery electrodes – in the “current collector,” a sheet of copper which facilitates electron transfer between the electrodes and the car’s electrical system. (more…)

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Curiosity Resumes Science after Analysis of Voltage Issue

Study Reveals New Factor that could Limit the Life of Hybrid and Electric Car Batteries