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Electrical

What Makes It Work? - Lithium-Ion Batteries



In recent years there have been a number a different rechargeable battery technology’s in the marketplace, nickel cadmium, nickel metal hydride and now lithium-ion batteries.


Lithium-ion batteries are superior to the other types in power output and battery life and thus have become the standard battery powering everything from cell phones to electric automobiles.


Lithium-ion battery technology was developed in the 1970’s and 80’s and commercialized by Sony in 1991. Its power is created through the movement of lithium ions through an electrolyte from the negative electrode to the positive electrode during discharge (use) and then reversing the flow during recharging.



       Lithium-Ion Battery



Lithium-ion batteries have a high energy density, no memory effect and a low self-discharge rate, making them an ideal power source where high power and long battery life is important, such as in power tools and portable electronics. Tesla has proven their use in automobiles as well.


The danger lies in the electrolyte used, as it is flammable and if the battery is damaged or overheated during high usage levels or charging, a fire can result. Samsung has been forced to recall cell phones due to battery issues and Tesla automobiles have experienced battery fires as well, where battery temperatures exceeded expected levels.


Research continues and Lithium-ion manganese oxide batteries often used for medical equipment and power tools are finding their way into electric automobiles. They have a lower power density but are less likely to explode or catch fire.


Cal-Tech and NASA are working on a fluoride-ion battery which is smaller and more powerful than current lithium-ion battery packs and may be the next big leap in battery technology!


As technology advances we may soon see battery powered aircraft, which would revolutionize the travel industry and make airports a much quieter place. Time will tell!



 

Mike, The Home Depot Answer Man

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Posted 2020-01-10T01:38:58+0000  by Mike_HD_OC Mike_HD_OC
 
 

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