Date: 10 months ago   Category: Hi-Tech

Workers of lities are created - the oxygen batteries capable "to hold a charge" three times more than usual


To place more energy in batteries is a key to creation of electric vehicles with longer run, smartphones with a "eternal" charge and cheap electronics around and everywhere. Lities-oxygen batteries represent one of the most promising ways of development in this direction. They can increase energy density by several orders in comparison with traditional lithium - ion batteries - at least, in the theory. In the work published yesterday in the Science magazine, scientists from the University of Waterloo have found out how to resolve the biggest obstacles in a way to formation of these batteries as commercial reality.

B what was a hitch? Most important: when lithium - oxygen batteries were discharged, oxygen turned into superoxide and then into lithium peroxide, jet components which corroded the battery over time. It, in turn, limited her abilities to a recharge - and possible useful application. When our batteries are better? What has changed? For the decision it is problems, scientists have passed from the carbon cathode to the cathode from nickel oxide with assistance of a grid from stainless steel. Also as electrolyte melted salt was used - electrolyte allows positively charged ions to move between electrodes - and have lifted the working temperature of the battery to 150 degrees Celsius. It has allowed to increase number of cycles of charging almost three times in comparison with obychnyem of lities - oxygen options. Also scientific it was succeeded to increase the content of energy per unit mass more than by 50%. "This opening emphasizes huge opportunities - to create new technologies of batteries which will be able potentially to throw down a challenge of lities - to ion batteries and other methods of storage", scientists write.

URL:




Today

just now

First "racket" of Ukraine of Elin Svitolin by results of the last week lost one position in the champion race WTA and now takes the 13th place. B top-8 pretenders to participation in WTA final - Por...

just now

The cabriolet of the 4th series of the next generation will be offered only with a fabric roof, instead of rigid now, thus decrease in gross weight will be reached. The refusal of metal for soft top w...

just now

Several new cases of a meningococcal disease were recorded in the city of Novosibirsk. the Meningococcal infection - the disease combining group of diseases which have different clinical manifestati...

just now

The minimum sum of a dole in Ukraine in 2019 is 610 hryvnias. But it is paid not to all but only by that who worked last calendar year less than 6 months and it was dismissed under the article. Also t...

just now

On June 20 the president of Ukraine Vladimir Zelensky cancelled action more than 160 decrees of the previous presidents of Ukraine. About that what decrees cancelled and about the main changes read fu...

just now

Documents will be available to everyone. the Building of future industry archive In Kiev will appear separate archive for documents of the Soviet intelligence agencies of ChK, NKVS and KGB. It wil...

just now

Employees of a dress of reaction of the Dnieper city department detained the man who having cut off a cable, hid from police officers in "a communication well". reported About this MOST-DNEPR news A...

just now

Samyuel Eto'o said in an interview to the Goal edition that to Mohammed Salah personally he recommends to replace the championship and to move from England to Spain. In opinion it is known the footbal...