Trough battery spaces between the plates (the troughs) were filled with dilute sulfuric acid. So long as the box was not knocked about, there was no risk of electrolyte spillage. 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.
Plug-in electric vehicles in Canada vehicles. Battery electric vehicles, fuel cell vehicles and plug-in hybrids with battery capacity of 15.0 kWh and above are eligible for a incentive. Also effective December 1, 2011, rebates of up to per qualifying electric vehicle charging equipment will be available to B.C. residents who have purchased a clean energy vehicle. Plug-in electric vehicles in Canada Cumulative sales of plug-in electric cars in Canada passed the 20,000 unit mark in May 2016, and the 30,000 unit mark in January 2017. The Chevrolet Volt, released in 2011, is the all-time top selling plug-in electric vehicle in the country, with cumulative sales