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  2. Electric battery - Wikipedia

    en.wikipedia.org/wiki/Electric_battery

    From top to bottom: a large 4.5-volt 3R12 battery, a D Cell, a C cell, an AA cell, an AAA cell, an AAAA cell, an A23 battery, a 9-volt PP3 battery, and a pair of button cells (CR2032 and LR44) Batteries are classified into primary and secondary forms: Primary batteries are designed to be used until exhausted of energy then discarded. Their ...

  3. Electric vehicle charging network - Wikipedia

    en.wikipedia.org/wiki/Electric_vehicle_charging...

    [278] [279] Additionally 6,209 charging posts and some battery replacement stations had been planned for 2010. [279] The State Grid Corporation China announced success in distributing 7,031 charge poles in Hangzhou-Jinhua and wants to add 211 additional charging poles in 2011 along with 173 charging stations. [citation needed]

  4. Electric car use by country - Wikipedia

    en.wikipedia.org/wiki/Electric_car_use_by_country

    Global cumulative sales of highway-legal light-duty plug-in electric vehicles reached 1 million units in September 2015, [3] 5 million in December 2018, [4] and passed the 10 million milestone in 2020. [5] By mid-2022, there were over 20 million light-duty plug-in vehicles on the world's roads. [6]

  5. Supercapacitor - Wikipedia

    en.wikipedia.org/wiki/Supercapacitor

    The electrochemical charge storage mechanisms in solid media can be roughly (there is an overlap in some systems) classified into 3 types: Electrostatic double-layer capacitors (EDLCs) use carbon electrodes or derivatives with much higher electrostatic double-layer capacitance than electrochemical pseudocapacitance, achieving separation of charge in a Helmholtz double layer at the interface ...