battery cathode Archives – The Green Optimistic green tech news, since 2008 Mon, 21 Mar 2011 16:13:54 +0000 en-US hourly 1 https://wordpress.org/?v=7.0 2667534 Illinois Researchers Create 3D Battery Electrode That Could Make EVs Charge In Minutes https://www.greenoptimistic.com/paul-braun-3d-battery-20110321/ https://www.greenoptimistic.com/paul-braun-3d-battery-20110321/#respond Mon, 21 Mar 2011 16:13:54 +0000 https://www.greenoptimistic.com/?p=17586 The big problem with nowadays' batteries is that they charge and discharge slowly. They can be made to charge and discharge faster at the price of their shortened lifetime, but that's not a solution at all. Supercapacitors may offer fast charge/discharge rates, but their capacity is just not very high. A hybrid of these two would be perfect.

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]]> https://www.greenoptimistic.com/paul-braun-3d-battery-20110321/feed/ 0 17586 Lithium Sulfur Experimental Batteries Provide 4 Times Capacity of Li-Ion https://www.greenoptimistic.com/lithium-sulfur-battery-20100314/ https://www.greenoptimistic.com/lithium-sulfur-battery-20100314/#respond Sun, 14 Mar 2010 07:33:44 +0000 https://www.greenoptimistic.com/?p=6985 Based on recent discoveries by University of Waterloo University scientists from Ontario, a team of Stanford researchers developed an electrode that can provide more energy density in lithium-sulfur batteries. Their experiments promise an improvement of 4 times the capacity of a standard lithium-ion battery, if current issues are overcame.

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