Battery-capacitor hybrid

27 January 2016 Power Electronics / Power Management Passive Components

Touting it as something of a cross between capacitor and battery, Murata has introduced a small but high-capacity energy storage device.

The UMAC is designed to meet the requirements of modern devices like wearables and wireless sensor nodes, which demand compactness, large capacity, extended cycle life, low internal resistance, fast charging and discharging, and the ability to withstand load fluctuations.

Closely resembling a radial capacitor, UMAC can be used as a small secondary battery in the same manner as a capacitor, but it achieves high-rate charge/discharge characteristics and extended cycle life superior to conventional secondary batteries. It also maintains flat voltage characteristics while accommodating a wide range of load characteristics. What’s more, because of its small capacity and the use of chemically stable materials, thermal runaway is prevented from occurring, making it a very safe option.

The device has a maximum charge/discharge rate of 30 mA and maintains a charge recovery rate of at least 90% after 1000 cycles.

For more information contact Yolandi de Beer, Avnet South Africa, +27 (0)11 319 8600, yolandi.debeer@avnet.eu, www.avnet.co.za

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