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S. Korean scientists find way to boost efficiency of lithium-ion battery
SEOUL, May 24 (Yonhap) -- A group of South Korean scientists has developed a new technology that can triple the efficiency and capacity of lithium-ion batteries, the science ministry said Friday.

   The team, led by Prof. Hyun Taek-hwan of Seoul National University, said the capacity of a lithium-ion battery increased by up to three times when they used a nano structure of iron oxide and manganese oxide, instead of lead, as the cathode of the battery.

   The new battery also proved to be much more efficient, losing less than 0.5 percent of its performance even after numerous recharges, according to the Ministry of Science, ICT and Future Planning.

   The findings were published Friday in the latest edition of the international journal Science under the title of "Galvanic Replacement Reactions in Metal Oxide Nanocrystals."