• 24Oct

    NEC develops a a prototype battery made from manganese and lithium that features cathodes that can handle a higher voltage of 4.5V. It also makes use of an electrolyte solution that helps stabilize the operation on a higher voltage. This product can help improve the range of electric vehicles in the future while making the battery packs later.
    The electrolyte solution and cathode help improve the energy density of the battery by as much as 30%. It also improves battery capacity while lowering its weight. The initial safety tests also gave favorable results . The new battery was presented by NEC during a recent scientific conference in Hawaii.

    The company currently produces lithium ion batteries that use cathodes made from manganese. These battery technologies are now used for large capacity applications such as in electric vehicles and in residential applications.

    The battery density has been a known-issue for manufacturers. NEC tried to resolve this by introducing a new electrolyte solution that slows down oxidative decomposition and also using higher voltage.

    The new batteries also make use of nickel in place of the manganese based cathode. This allows operation in higher voltages while maintaining safety during use and during recharging.

    The use of the new cathodes and anodes increase the operating voltage to 4.5 volts from the usual 3.8 volts of existing batteries. This leads to increased energy density from 150 to 200 Wh/kg or roughly a 30% improvement. This also means increased amount of energy stored. The new batteries are also lighter compared to existing units with the same storage capacity.

    The company promises to push for further development and support new researches to come up with batteries with better life span capacity, and reliability.

    Tags: , ,