NGK INSULATORS, LTD.: Ceramic Secondary Battery
Mass production is planned to start in April 2019 at NGK’s Nagoya factory and NGK Ceramic Devices Co., Ltd.’s Yamanashi factory.
NGK Insulators, Ltd. recently announced that it has developed EnerCera®, a small, thin and high-energy-density ceramic secondary battery to serve as a power source for Internet of Things (IoT) devices, smart cards, etc. Mass production is planned to start in April 2019 at NGK’s Nagoya factory and NGK Ceramic Devices Co., Ltd.’s Yamanashi factory.
EnerCera is a Li-ion secondary battery with NGK’s original crystal-oriented ceramic plates as electrodes. The plates are composed of an active material and contain no organic binder or conductive material. EnerCera therefore reportedly realizes high energy density and low internal resistance with a small and thin body while being capable of high-temperature installation. According to NGK, the energy density is double and the internal resistance is less than a half that of commercial secondary batteries of the same size.
EnerCera has two types: EnerCera Coin, a coin type cell, 1-2 mm thick, for mounting on a circuit board; and EnerCera Pouch, an ultra-thin and bendable cell, 0.4-0.45 mm thick, for embedding in a card. According to NGK, EnerCera Coin is the world’s first SMD-type Li-ion battery that can be mounted by solder reflow, which is commonly used as an electronic component mounting process. It also reportedly has a high discharge current property sufficient to operate devices.
NGK reports that EnerCera Pouch is the world’s first thin-type Li-ion battery that can be embedded by the hot lamination (above 100°C) used widely in IC card production. The EnerCera Pouch lineup has a fast charging type, a high-capacity type and a high-power type for customers’ various device designs.
NGK expects the series to be adopted for applications that require high capacity in a small and thin body. Potential applications include IoT devices, beacons (short-range wireless communication devices), RFID tags, electronic shelf labels (ESLs), wearable devices, solar watches, and backup power of solid-state drives (SSDs).
For more information, visit www.ngk-insulators.com.