Trough battery Trough battery The trough battery was a variant of Alessandro Volta's Voltaic Pile and was invented by William Cruickshank c. 1800. Volta's battery consisted of brine-soaked pieces of cloth sandwiched between zinc and copper discs, piled in a stack. This resulted in electrolyte leakage as the weight of the discs squeezed the electrolyte out of the cloth. Cruickshank solved this problem by laying the battery on its side in a rectangular box. The inside of this box was lined with shellac for insulation, and pairs of welded-together zinc and copper plates were laid out in this box, evenly spaced. The
Plug-in electric vehicles in Japan sold 52,234 plug-in electric vehicles in Japan since July 2009. The first prototype battery switch station from Better Place was demonstrated in Yokohama on May 14, 2009. On April 2010, a 90-day switchable-battery electric taxi demonstration project was launched in Tokyo, using three Nissan Rogue crossover utility vehicles, converted into electric cars with switchable batteries provided by A123 Systems. The battery switch station deployed in Tokyo is more advanced than the Yokohama switch system demonstrated in 2009. During the three-month field test the EV taxis accumulated over and swapped batteries 2,122 times, with an average battery swap time of 59.1