Wednesday, 19 February 2014

erfluoropolyether , Make Lithium Ion Batteries Not Flammable


Litihum ion batteries are often used as an energy source phones and other gadgets , it is very susceptible to burn. There have been many cases of deaths related to accidents caused by users of smartphones battery explosion , which is being used or not .

Trigger explosion Li-ion batteries due to two factors , namely due to pressure and electrolyte battery that carries a charge extremely flammable. Keep in mind , lithium batteries and other metal objects vulnerable to melt if they touch. Thanks to the solution of researchers at the University of North Carolina at Chapel Hill , sensitivity component in the battery seems to be muted . They claim to have developed the first lithium ion batteries are the most secure . The method by replacing flammable organic solvents which electrolye with industrial lubricants known as perfluoropolyether ( PFPE ) .

PFPE commonly used in maritime applications to prevent sealife attached to the bottom of a large ship . Joseph DeSimone , the leader of the study said that replacing organic solvents with fluoride polymer perfluoropolyether ( PFPE ) will not prevent a normal reaction , but it will reduce the flammability risk down to almost zero percent . Not only that , the possibility of battery life can last even longer. PFPE has also been used as a lubricant for large machines and gear .

" These electrolytes really not only flammable , but also do a high transference unprecedented and electrochemical polarization is low, so is an indication of the battery will last longer , " said DeSimone .

Development continues to determine whether the design can be used for charging and discharging consistent as other consumer devices . But beyond that , researchers also need to find a way to mass produce these new batteries to be distributed commercially .

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