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  2. Lithium-ion battery - Wikipedia

    en.wikipedia.org/wiki/Lithium-ion_battery

    A lithium-ion or Li-ion battery is a type of rechargeable battery that uses the reversible intercalation of Li + ions into electronically conducting solids to store energy. In comparison with other commercial rechargeable batteries, Li-ion batteries are characterized by higher specific energy, higher energy density, higher energy efficiency, a longer cycle life, and a longer calendar life.

  3. Electric vehicle battery - Wikipedia

    en.wikipedia.org/wiki/Electric_vehicle_battery

    Nissan Leaf cutaway showing part of the battery in 2009. An electric vehicle battery is a rechargeable battery used to power the electric motors of a battery electric vehicle (BEV) or hybrid electric vehicle (HEV). They are typically lithium-ion batteries that are designed for high power-to-weight ratio and energy density.

  4. List of companies of Nigeria - Wikipedia

    en.wikipedia.org/wiki/List_of_companies_of_Nigeria

    Nigeria is a federal republic in West Africa, bordering Benin in the west, Chad and Cameroon in the east, and Niger in the north. As of 2015 Nigeria has the world's 20th largest economy, worth more than $500 billion and $1 trillion in terms of nominal GDP and purchasing power parity respectively. It overtook South Africa to become Africa's ...

  5. Lithium battery - Wikipedia

    en.wikipedia.org/wiki/Lithium_battery

    Lithium–iron disulfide battery; Lithium–sulfur battery; Nickel–lithium battery; Rechargeable lithium metal battery, a rechargeable counterpart to the lithium metal battery; Lithium-ion battery, a rechargeable battery in which lithium ions move from the negative electrode to the positive electrode during discharge and back when charging

  6. Nine-volt battery - Wikipedia

    en.wikipedia.org/wiki/Nine-volt_battery

    The nine-volt battery, or 9-volt battery, is an electric battery that supplies a nominal voltage of 9 volts. Actual voltage measures 7.2 to 9.6 volts, depending on battery chemistry. Batteries of various sizes and capacities are manufactured; a very common size is known as PP3, introduced for early transistor radios. The PP3 has a rectangular ...

  7. Nigerian energy supply crisis - Wikipedia

    en.wikipedia.org/wiki/Nigerian_energy_supply_crisis

    Until the power sector reforms of 2005, power supply and transmission was the sole responsibility of the Nigerian federal government. As of 2012, Nigeria generated approximately 4,000 - 5,000 megawatts of power for a population of 150 million people as compared with Africa's second-largest economy, South Africa, which generated 40,000 megawatts of power for a population of 62 million. [7]