TDK Electronics · TDK Europe

CeraCharge? - Rechargeable solid-state SMD battery

 01 CeraCharge_Propduktbild [en]

Main features and benefits

  • Compact EIA 1812 case size
  • Wide temperature range from -20 °C to +80 °C
  • More than 1000 recharging cycles
  • Easy placement and processing using reflow soldering techniques
  • Solid ceramic electrolyte rules out the risk of fire, explosion or leakage of liquid electrolyte

Main applications

  • IoT devices e.g., smart meters, programmable logic controllers (PLCs), smart home sensors, real-time clocks (RTC)
  • Bluetooth beacons (BLE)
  • Wearable devices
  • Systems for energy harvesting

From simple gadgets to complex devices for the industrial?and consumer IoT – they all require compact, reliable and extremely safe power supplies. In order to meet all these demands, TDK has developed CeraCharge?, the world’s first rechargeable solid-state SMD battery.

Life today would be unimaginable without batteries. We depend on accumulators that are not only based on a variety of technologies but also offer a wide range of capacities.

In all its facets, the Internet of Things will require in the future billions of special power supplies tailored to the requirements of new ultra-low-power semiconductors and sensors. These devices must function for years, independently of external power supplies, by using energy-harvesting technologies. The demands made on energy storage media are as follows: small dimensions, rechargeability, intrinsically safe, easy to assemble, low cost, and long service life. Not all of these requirements can be met simultaneously using currently available technologies. For many applications, the TDK CeraCharge offers a way out of this dilemma. Unlike most common technologies, this one involves a solid-state rechargeable battery with no liquid electrolyte through which the lithium ions move during charging or discharging. CeraCharge is based on a multilayer technology similar to the one used in Multilayer Ceramic Chip Capacitors.

 03 Feature_2_Bild_Battery Technology [en]

Technical Data

CeraCharge 1812

Nominal voltage[V]1.5
Operating voltage[Vop]0 to 1.6
Nominal capacity[μAh]100±20
Nominal discharge current[μA]20
Operating temperature[°C]-20 to +80
Case size[EIA]1812
Dimensions[mm]4.4 x 3.0 x 1.1

PDF Case?size Nom. operating voltage (V DC) Type Ordering code
file_pdf_box new
EIA 1812 1.5 BCT1812M101AG B73180A0101M062

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Application Note

PDF - 1.4 MB file_download Download


PDF - 652.9 KB file_download Download

Backup battery for real time clock

PDF - 570.9 KB file_download Download

Battery in energy harvesting applications (Beacon)

PDF - 445.9 KB file_download Download


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