Sodium batteries rival lithium

French researchers from within the RS2E network on electrochemical energy storage have developed the first battery using sodium ions in the usual "18650" format, an industry standard. The prototype batteries are claimed to have displayed performance levels comparable to their lithium counterparts, and be used to store renewable energy in the future.

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ZofzPCB is a free 3D Gerber viewer that allows designers to see inside the board – between the layers – to thoroughly inspect PCB layout. This means that errors in the design, which can be costly to repair, are picked up before being manufactured.

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