The ingredients are cheap and common; just recycle them after a coupla hundred cycles. Maybe you could even refurbish these things at home. The article didn't m

The ingredients are cheap and common; just recycle them after a coupla hundred cycles. Maybe you could even refurbish these things at home. The article didn't mention any exotic or expensive materials or parts, so perhaps you could even build your own. Which wouldn't infringe any patents, as long as you didn't sell the thing.