Developed environmentally friendly and inexpensive alkaline batteries to replace lithium-ion

Abundance of mobile devices presented highrequirements for working offline, encourages developers to search for new and innovative batteries. Modern, the most common lithium-ion batteries also pose a danger to the environment.

City College ResearchersNew York developed a battery using manganese and zinc. Currently, such a battery produces a voltage of 2.45 to 2.8 V, which is slightly weaker than traditional lithium-ion batteries producing a voltage of more than 3 V. However, manganese-zinc (alkaline, MnO2 | Zn) cells are much cheaper to manufacture. In addition, the already produced alkaline batteries MnO2 | Zn have so far been able to achieve a voltage of only 1.2-1.3 V.

For the manufacture of new batteries usedmanganese and zinc dioxide. Contact with an aqueous zinc-based electrolyte produces a voltage comparable to the voltage of expensive and highly flammable lithium-ion batteries.

New invention may destroy dominancepolluting the environment of lithium-ion batteries, which are also more expensive, and the main reserves of lithium are explored and mined in Asia. Mn and Zn, meanwhile, are widely available elements mined in abundance in the United States.

Alkaline batteries providetheoretical capacity of 308 mAh / g, effectively restoring its characteristics during multi-cycle recharging. This indicator makes the batteries available for use in modern smartphones and other wearable gadgets.

Source: techxplore