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  Longest lasting alkaline battery-world record set by Evolta

[Jan 15] TOKYO-- Japan's Panasonic has created the world's longest lasting alkaline battery, Evolta, which will keep gadgets running 20 per cent longer than offerings from rivals Duracell and Energizer, as well as its own upscale Oxyride batteries.
   Photo: Panasonic's Evolta batteries are the world's longest-lasting AA alkaline battery cell.
-click to enlarge photo
   The new battery promises to keep your gadgets running 20 percent longer on average than today's offerings from rivals like Duracell and Energizer, as well as Panasonic's own upscale batteries called Oxyride. (AP Photo/Koji Sasahara)


      The battery also has a 10 year shelf life, making it suitable to store in preparation for disasters. Other batteries have about five to seven years of shelf life, according to Panasonic officials.

     The new structure of EVOLTA batteries provides more internal space allowing storage of extra active materials and increased sturdiness by using a new sealing technology for the cylindrical container. -click to enlarge

    Newly-developed active materials for cathode (new manganese dioxide and oxy-hydroxide titanium) and anode (zinc) facilitate a chemical reaction that delivers superior performance.

   To maximize the chemical reaction within the batteries,Panasonic has improved the manufacturing process used for the Oxyride batteries to pack active materials more evenly and densely.

    As a result, EVOLTA batteries deliver excellent performance in wide ranging equipment from low-current applications such as TV remotes to high-drain applications like digital cameras.

   Evolta goes on sale in April in Japan, and is planned for overseas markets later this year, according to Matsushita Electric Industrial Co., which makes Panasonic brand products.

   The batteries will cost about 590 yen (US$5.40; euro3.63) for a pack of four in Japan, or about 15 percent higher than regular batteries and 3 percent higher than Oxyride. Prices in the U.S. and elsewhere aren't yet decided.   

   Matsushita, set to become Panasonic Corp. in October, plans a major marketing drive for Evolta. It still has a minimal share of the U.S. market in batteries, and hopes to raise that with Evolta.

    Disposable batteries are used widely in portable electronics such as stereos and digital cameras. As smaller rivals pump out low-cost disposable batteries, big-name manufacturers like Matsushita increasingly must prove to consumers that their offerings are worth a premium.

    "We want to focus as much as possible on the high-price zone," said Mitsuru Kurokawa, president of the Primary Battery Company at Matsushita Battery Industrial Co., a Matsushita unit.

   Matsushita has sold 700 million Oxyride batteries worldwide so far.

   Matsushita makes the Panasonic brand of products and will change its official company name to Panasonic this year.



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