Murata Manufacturing Co., Ltd. has developed ultra-compact secondary batteries "UMAC040130A003TA01" for use in sensor nodes of wearable devices and wireless sensor networks. Although the size of this product is only 4mm in diameter and 33mm in length (main body 12mm), 3mAh battery capacity is ensured.
This new product and its size. This article is from Murata Manufacturing Co., Ltd.
Discharge characteristics.
According to Murata, the new product can be used like a capacitor because it can be charged and discharged quickly and has a long life. The maximum discharge rate is 10C (30mA) and the charging speed is faster than ever. For example, when charging at 33C (100mA) at 25°C, 60% charge is possible in 2 minutes and 26 seconds, 90% charge is possible in 4 minutes and 55 seconds, and 25 minutes and 30 seconds are sufficient.
33C (100mA) charge and load drive time at 25°C.
Charge and discharge cycle characteristics.
About the life of the new product, Murata Manufacturing Co., Ltd. said that in 1000 charge and discharge cycles, the capacity retention rate can reach more than 90%. The nominal voltage is 2.3V, the charging voltage is 2.7V, the discharge termination voltage is 1.8V, and the ESR is 800mΩ. Operating temperature range is 0 ~ 70 °C.
New products are currently sampling, and production is scheduled to begin in October 2015. In addition, Murata will present this new product at "CEATEC JAPAN 2015" held at the Makuhari Messe Convention Center from October 7th to October 10th. (Reporter: Yutaro Kojima)
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