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Path to fast NiMH charging is...mechanical?

An alternate method of fast charging Nickel-metal hydride is to incorporate a pressure switch in the body of the cell which opens when the pressure rises. Using the method, cells can be recharged in 15 minutes. The pressure rise begins before the Voltage gradient reversal, making the pressure a very accurate measure of the fully charged cell. The resultant complexity of charger electronics can be reduced and the cell is saved from overvoltage and overtemperatures.(08-02BD77-13)


July 11, 2002


Rayovac Corp. and Yuasa-Delta Technology, Taiwan, sign a manufacturing and purchasing agreement. Under the agreement, Yuasa-Delta will produce Rayovacs new I-C3TM rechargeable Nickel-metal hydride batteries and other Nickel-metal hydride products. Rayovacs patent-pending I-C3 technology puts the control of recharging into the battery, instead of the charger, resulting in batteries that can be recharged in as little as 15 minutes. Rayovac says its I-C3 technology Nickel-metal hydride batteries are designed to be the longest-lasting rechargeable and can last up to four times longer than regular single-use Alkaline in certain applications. It is anticipated that these batteries can be recharged up to 1,000 times. With this technology Rayovac is looking to capture a significant portion of the $5 billion rechargeable-battery industry.(08-02BD77-10)


Q: What are the chraracteristics of Nickel-based batteries, its dominance and the future?(06-02BD75-12-13)

DOE Grant to Advance ECD Technologies in Russia

The U.S. Department of Energy awarded a $750,000 cost shared grant to Sovlux Battery, the joint venture of ECD with Russias Chepetsky Mechanical Plant. The effort will be focused on metal-hydride technology for the Russian market. The grant was awarded under the Initiatives for Proliferation Prevention Program to employ Russian scientists and engineers formerly engaged in nuclear weapons work.(06-02BD75-14)

Advanced Battery Technology
April 2002, pp. 1-2


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