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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.
Zinc–carbon batteries may be frozen without damage; manufacturers recommend that they be returned to normal room temperature before use, and that condensation on the battery jacket must be avoided. By the end of the 20th century, the storage life of zinc–carbon cells had improved fourfold over expected life in 1910.
An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections [1] for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. [2] The terminal marked negative is the source of electrons.
Aqueous electrolytes are the dominant form in ZIBs due to their high conductivity, low price, non-flammability, and environmental safety. Typical Zn salts are ZnSO 4, Zn(OTf) 2, and Zn(TFSI) 2. [13] Zinc sulfate is widely used today because of its lower cost and electrode stability, but the larger triflate and TFSI anions can lead to higher ...
In March 2013, Phinergy [5] released a video demonstration of an electric car using aluminium–air cells driven 330 km using a special cathode and potassium hydroxide. [6] On May 27, 2013, the Israeli channel 10 evening news broadcast showed a car with Phinergy battery in the back, claiming 2,000 kilometres (1,200 mi) range before replacement ...
Bongo BD was established in 2013 by Ahad Mohammad and Navidul Huq, and later collaborated with Grameenphone to introduce the Bioscope over-the-top media service in 2016. By February 2017, Bongo BD boasted an extensive collection of over 25,000 titles available for streaming, encompassing classic films, contemporary blockbusters, documentaries ...
On 18 October 2012, Bikroy was formally launched in a press conference held in Bangladesh's capital city Dhaka but had begun operations in June earlier that year. [3] In November 2012, Bikroy was named as the "Country's first bilingual classified website" by The Daily Star. [7] It launched its application on iOS and Android in 2015. [8]
The first dedicated online chat service that was widely available to the public was the CompuServe CB Simulator in 1980, [7] [8] created by CompuServe executive Alexander "Sandy" Trevor in Columbus, Ohio. Ancestors include network chat software such as UNIX "talk" used in the 1970s. [citation needed] Chat is implemented in many video ...